SYMBOLCOMMON_NAMEaka. SYNONYMS
win.plead (Back to overview)

PLEAD

aka: DRAWDOWN, GOODTIMES, Linopid

Actor(s): BlackTech


PLEAD is a RAT used by the actor BlackTech. FireEye uses the synonyms GOODTIMES for the RAT module and DRAWDOWN for the respective downloader.

References
2020-09-29SymantecThreat Hunter Team
@online{team:20200929:palmerworm:4a96e3b, author = {Threat Hunter Team}, title = {{Palmerworm: Espionage Gang Targets the Media, Finance, and Other Sectors}}, date = {2020-09-29}, organization = {Symantec}, url = {https://symantec-enterprise-blogs.security.com/blogs/threat-intelligence/palmerworm-blacktech-espionage-apt}, language = {English}, urldate = {2020-10-04} } Palmerworm: Espionage Gang Targets the Media, Finance, and Other Sectors
KIVARS PLEAD
2020-01-14TEAMT5CiYi Yu, Aragorn Tseng
@techreport{yu:20200114:evil:20b2d83, author = {CiYi Yu and Aragorn Tseng}, title = {{Evil Hidden in Shellcode: The Evolution of Malware DBGPRINT}}, date = {2020-01-14}, institution = {TEAMT5}, url = {https://jsac.jpcert.or.jp/archive/2020/pdf/JSAC2020_2_ycy-aragorn_en.pdf}, language = {English}, urldate = {2020-04-13} } Evil Hidden in Shellcode: The Evolution of Malware DBGPRINT
PLEAD
2019-12-12FireEyeChi-en Shen, Oleg Bondarenko
@online{shen:20191212:cyber:e01baca, author = {Chi-en Shen and Oleg Bondarenko}, title = {{Cyber Threat Landscape in Japan – Revealing Threat in the Shadow}}, date = {2019-12-12}, organization = {FireEye}, url = {https://www.slideshare.net/codeblue_jp/cb19-cyber-threat-landscape-in-japan-revealing-threat-in-the-shadow-by-chi-en-shen-ashley-oleg-bondarenko}, language = {English}, urldate = {2020-04-16} } Cyber Threat Landscape in Japan – Revealing Threat in the Shadow
Cerberus TSCookie Cobalt Strike Dtrack Emotet Formbook IcedID Icefog IRONHALO Loki Password Stealer (PWS) PandaBanker PLEAD poisonplug TrickBot BlackTech
2019-11-22SANS Cyber Security SummitSveva Vittoria Scenarelli, Rachel Mullan
@techreport{scenarelli:20191122:need:00f7cef, author = {Sveva Vittoria Scenarelli and Rachel Mullan}, title = {{Need for PLEAD: BlackTech Pursuit}}, date = {2019-11-22}, institution = {SANS Cyber Security Summit}, url = {https://www.sans.org/cyber-security-summit/archives/file/summit-archive-1574947724.pdf}, language = {English}, urldate = {2020-01-20} } Need for PLEAD: BlackTech Pursuit
BLUETHER PLEAD
2019-09-18JPCERT/CCShusei Tomonaga
@online{tomonaga:20190918:malware:67390e7, author = {Shusei Tomonaga}, title = {{Malware Used by BlackTech after Network Intrusion}}, date = {2019-09-18}, organization = {JPCERT/CC}, url = {https://blogs.jpcert.or.jp/en/2019/09/tscookie-loader.html}, language = {English}, urldate = {2019-11-16} } Malware Used by BlackTech after Network Intrusion
PLEAD
2019-08-01Kaspersky LabsGReAT
@online{great:20190801:trends:5e25d5b, author = {GReAT}, title = {{APT trends report Q2 2019}}, date = {2019-08-01}, organization = {Kaspersky Labs}, url = {https://securelist.com/apt-trends-report-q2-2019/91897/}, language = {English}, urldate = {2020-08-13} } APT trends report Q2 2019
ZooPark magecart POWERSTATS Chaperone COMpfun EternalPetya FinFisher RAT HawkEye Keylogger HOPLIGHT Microcin NjRAT Olympic Destroyer PLEAD RokRAT Triton Zebrocy Microcin
2019-05-30JPCERT/CCShusei Tomonaga
@online{tomonaga:20190530:bug:cf70c8d, author = {Shusei Tomonaga}, title = {{Bug in Malware “TSCookie” - Fails to Read Configuration - (Update)}}, date = {2019-05-30}, organization = {JPCERT/CC}, url = {https://blogs.jpcert.or.jp/en/2019/05/tscookie3.html}, language = {English}, urldate = {2020-01-13} } Bug in Malware “TSCookie” - Fails to Read Configuration - (Update)
PLEAD
2019-05-14ESET ResearchAnton Cherepanov
@online{cherepanov:20190514:plead:3140588, author = {Anton Cherepanov}, title = {{Plead malware distributed via MitM attacks at router level, misusing ASUS WebStorage}}, date = {2019-05-14}, organization = {ESET Research}, url = {https://www.welivesecurity.com/2019/05/14/plead-malware-mitm-asus-webstorage/}, language = {English}, urldate = {2019-11-14} } Plead malware distributed via MitM attacks at router level, misusing ASUS WebStorage
PLEAD BlackTech
2018-11-12JPCERT/CCShusei Tomonaga
@online{tomonaga:20181112:bug:fe13af3, author = {Shusei Tomonaga}, title = {{Bug in Malware “TSCookie” - Fails to Read Configuration}}, date = {2018-11-12}, organization = {JPCERT/CC}, url = {https://blogs.jpcert.or.jp/en/2018/11/tscookie2.html}, language = {English}, urldate = {2019-10-28} } Bug in Malware “TSCookie” - Fails to Read Configuration
PLEAD
2018-07-09ESET ResearchAnton Cherepanov
@online{cherepanov:20180709:certificates:ae214b6, author = {Anton Cherepanov}, title = {{Certificates stolen from Taiwanese tech‑companies misused in Plead malware campaign}}, date = {2018-07-09}, organization = {ESET Research}, url = {https://www.welivesecurity.com/2018/07/09/certificates-stolen-taiwanese-tech-companies-plead-malware-campaign/}, language = {English}, urldate = {2019-11-14} } Certificates stolen from Taiwanese tech‑companies misused in Plead malware campaign
PLEAD BlackTech
2018-06-08JPCERT/CCShusei Tomonaga
@online{tomonaga:20180608:plead:046d5bc, author = {Shusei Tomonaga}, title = {{PLEAD Downloader Used by BlackTech}}, date = {2018-06-08}, organization = {JPCERT/CC}, url = {https://blog.jpcert.or.jp/2018/06/plead-downloader-used-by-blacktech.html}, language = {English}, urldate = {2020-01-06} } PLEAD Downloader Used by BlackTech
PLEAD
2018-03-06Shusei Tomonaga
@online{tomonaga:20180306:malware:f5fea73, author = {Shusei Tomonaga}, title = {{Malware “TSCookie”}}, date = {2018-03-06}, url = {http://blog.jpcert.or.jp/2018/03/malware-tscooki-7aa0.html}, language = {English}, urldate = {2020-01-07} } Malware “TSCookie”
PLEAD
2018-01-10FreebufTencent Computer Manager
@online{manager:20180110:analysis:3a5fe83, author = {Tencent Computer Manager}, title = {{Analysis of BlackTech's latest APT attack}}, date = {2018-01-10}, organization = {Freebuf}, url = {http://www.freebuf.com/column/159865.html}, language = {English}, urldate = {2020-01-08} } Analysis of BlackTech's latest APT attack
PLEAD
2017-06-22Trend MicroLenart Bermejo, Razor Huang, CH Lei
@online{bermejo:20170622:following:7126b3b, author = {Lenart Bermejo and Razor Huang and CH Lei}, title = {{Following the Trail of BlackTech’s Cyber Espionage Campaigns}}, date = {2017-06-22}, organization = {Trend Micro}, url = {https://blog.trendmicro.com/trendlabs-security-intelligence/following-trail-blacktech-cyber-espionage-campaigns/}, language = {English}, urldate = {2019-12-24} } Following the Trail of BlackTech’s Cyber Espionage Campaigns
PLEAD BlackTech
2017-06Trend MicroLenart Bermejo, Razor Huang, CH Lei
@techreport{bermejo:201706:following:61e6dae, author = {Lenart Bermejo and Razor Huang and CH Lei}, title = {{Following the Trail of BlackTech’s Cyber Espionage Campaigns}}, date = {2017-06}, institution = {Trend Micro}, url = {https://documents.trendmicro.com/assets/appendix-following-the-trail-of-blacktechs-cyber-espionage-campaigns.pdf}, language = {English}, urldate = {2020-01-07} } Following the Trail of BlackTech’s Cyber Espionage Campaigns
PLEAD
2016-04-13FireEyeDaniel Regalado, Taha Karim, Varun Jian, Erye Hernandez
@online{regalado:20160413:ghosts:5d2944f, author = {Daniel Regalado and Taha Karim and Varun Jian and Erye Hernandez}, title = {{Ghosts in the Endpoint}}, date = {2016-04-13}, organization = {FireEye}, url = {https://www.fireeye.com/blog/threat-research/2016/04/ghosts_in_the_endpoi.html}, language = {English}, urldate = {2020-04-20} } Ghosts in the Endpoint
PLEAD
2014-07-02Trend MicroKervin Alintanahin, Ronnie Giagone
@online{alintanahin:20140702:kivars:4fe6877, author = {Kervin Alintanahin and Ronnie Giagone}, title = {{KIVARS With Venom: Targeted Attacks Upgrade with 64-bit “Support”}}, date = {2014-07-02}, organization = {Trend Micro}, url = {https://blog.trendmicro.com/trendlabs-security-intelligence/kivars-with-venom-targeted-attacks-upgrade-with-64-bit-support/}, language = {English}, urldate = {2020-06-19} } KIVARS With Venom: Targeted Attacks Upgrade with 64-bit “Support”
FakeWord KIVARS PLEAD Poison RAT Zeus
Yara Rules
[TLP:WHITE] win_plead_auto (20201014 | autogenerated rule brought to you by yara-signator)
rule win_plead_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2020-10-14"
        version = "1"
        description = "autogenerated rule brought to you by yara-signator"
        tool = "yara-signator v0.5.0"
        tool_config = "callsandjumps;datarefs;binvalue"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.plead"
        malpedia_rule_date = "20201014"
        malpedia_hash = "a7e3bd57eaf12bf3ea29a863c041091ba3af9ac9"
        malpedia_version = "20201014"
        malpedia_license = "CC BY-SA 4.0"
        malpedia_sharing = "TLP:WHITE"

    /* DISCLAIMER
     * The strings used in this rule have been automatically selected from the
     * disassembly of memory dumps and unpacked files, using YARA-Signator.
     * The code and documentation is published here:
     * https://github.com/fxb-cocacoding/yara-signator
     * As Malpedia is used as data source, please note that for a given
     * number of families, only single samples are documented.
     * This likely impacts the degree of generalization these rules will offer.
     * Take the described generation method also into consideration when you
     * apply the rules in your use cases and assign them confidence levels.
     */


    strings:
        $sequence_0 = { c745e401000000 c745fcffffffff e8???????? 33c0 8b4df0 64890d00000000 }
            // n = 6, score = 600
            //   c745e401000000       | mov                 dword ptr [ebp - 0x1c], 1
            //   c745fcffffffff       | mov                 dword ptr [ebp - 4], 0xffffffff
            //   e8????????           |                     
            //   33c0                 | xor                 eax, eax
            //   8b4df0               | mov                 ecx, dword ptr [ebp - 0x10]
            //   64890d00000000       | mov                 dword ptr fs:[0], ecx

        $sequence_1 = { 53 56 897d14 e8???????? 83c40c 8d4514 53 }
            // n = 7, score = 600
            //   53                   | push                ebx
            //   56                   | push                esi
            //   897d14               | mov                 dword ptr [ebp + 0x14], edi
            //   e8????????           |                     
            //   83c40c               | add                 esp, 0xc
            //   8d4514               | lea                 eax, [ebp + 0x14]
            //   53                   | push                ebx

        $sequence_2 = { 8844341c 46 3bf1 7cf1 ffd3 }
            // n = 5, score = 600
            //   8844341c             | mov                 byte ptr [esp + esi + 0x1c], al
            //   46                   | inc                 esi
            //   3bf1                 | cmp                 esi, ecx
            //   7cf1                 | jl                  0xfffffff3
            //   ffd3                 | call                ebx

        $sequence_3 = { 3bf7 740f ebda 33f6 c745fcf8ffffff 3bf7 }
            // n = 6, score = 600
            //   3bf7                 | cmp                 esi, edi
            //   740f                 | je                  0x11
            //   ebda                 | jmp                 0xffffffdc
            //   33f6                 | xor                 esi, esi
            //   c745fcf8ffffff       | mov                 dword ptr [ebp - 4], 0xfffffff8
            //   3bf7                 | cmp                 esi, edi

        $sequence_4 = { 750f 56 ff15???????? 6afe }
            // n = 4, score = 600
            //   750f                 | jne                 0x11
            //   56                   | push                esi
            //   ff15????????         |                     
            //   6afe                 | push                -2

        $sequence_5 = { 85c0 750c c745fcfcffffff e9???????? 395d18 }
            // n = 5, score = 600
            //   85c0                 | test                eax, eax
            //   750c                 | jne                 0xe
            //   c745fcfcffffff       | mov                 dword ptr [ebp - 4], 0xfffffffc
            //   e9????????           |                     
            //   395d18               | cmp                 dword ptr [ebp + 0x18], ebx

        $sequence_6 = { 53 50 8b1d???????? ffd3 85c0 743b }
            // n = 6, score = 600
            //   53                   | push                ebx
            //   50                   | push                eax
            //   8b1d????????         |                     
            //   ffd3                 | call                ebx
            //   85c0                 | test                eax, eax
            //   743b                 | je                  0x3d

        $sequence_7 = { c9 c21000 56 8b742408 85f6 7417 56 }
            // n = 7, score = 600
            //   c9                   | leave               
            //   c21000               | ret                 0x10
            //   56                   | push                esi
            //   8b742408             | mov                 esi, dword ptr [esp + 8]
            //   85f6                 | test                esi, esi
            //   7417                 | je                  0x19
            //   56                   | push                esi

        $sequence_8 = { 6a01 ff15???????? 83c40c 85c0 7504 33c0 }
            // n = 6, score = 600
            //   6a01                 | push                1
            //   ff15????????         |                     
            //   83c40c               | add                 esp, 0xc
            //   85c0                 | test                eax, eax
            //   7504                 | jne                 6
            //   33c0                 | xor                 eax, eax

        $sequence_9 = { 85c0 7504 33c0 eb09 56 50 e8???????? }
            // n = 7, score = 600
            //   85c0                 | test                eax, eax
            //   7504                 | jne                 6
            //   33c0                 | xor                 eax, eax
            //   eb09                 | jmp                 0xb
            //   56                   | push                esi
            //   50                   | push                eax
            //   e8????????           |                     

        $sequence_10 = { 760f 8d44241c 50 ffd6 6a0b ff15???????? 6a00 }
            // n = 7, score = 600
            //   760f                 | jbe                 0x11
            //   8d44241c             | lea                 eax, [esp + 0x1c]
            //   50                   | push                eax
            //   ffd6                 | call                esi
            //   6a0b                 | push                0xb
            //   ff15????????         |                     
            //   6a00                 | push                0

        $sequence_11 = { 8b8c242c020000 51 ff15???????? 8d54240c 52 }
            // n = 5, score = 600
            //   8b8c242c020000       | mov                 ecx, dword ptr [esp + 0x22c]
            //   51                   | push                ecx
            //   ff15????????         |                     
            //   8d54240c             | lea                 edx, [esp + 0xc]
            //   52                   | push                edx

        $sequence_12 = { ff15???????? 8b4c2412 8b54240e 8b44240c 81e1ffff0000 }
            // n = 5, score = 600
            //   ff15????????         |                     
            //   8b4c2412             | mov                 ecx, dword ptr [esp + 0x12]
            //   8b54240e             | mov                 edx, dword ptr [esp + 0xe]
            //   8b44240c             | mov                 eax, dword ptr [esp + 0xc]
            //   81e1ffff0000         | and                 ecx, 0xffff

        $sequence_13 = { 33c0 8dbdd8feffff f3ab 6804010000 8d95d8feffff }
            // n = 5, score = 600
            //   33c0                 | xor                 eax, eax
            //   8dbdd8feffff         | lea                 edi, [ebp - 0x128]
            //   f3ab                 | rep stosd           dword ptr es:[edi], eax
            //   6804010000           | push                0x104
            //   8d95d8feffff         | lea                 edx, [ebp - 0x128]

        $sequence_14 = { 25ffff0000 50 8b8db2fcffff 81e1ffff0000 }
            // n = 4, score = 600
            //   25ffff0000           | and                 eax, 0xffff
            //   50                   | push                eax
            //   8b8db2fcffff         | mov                 ecx, dword ptr [ebp - 0x34e]
            //   81e1ffff0000         | and                 ecx, 0xffff

        $sequence_15 = { 66c745f25400 66895df4 66895df6 53 }
            // n = 4, score = 600
            //   66c745f25400         | mov                 word ptr [ebp - 0xe], 0x54
            //   66895df4             | mov                 word ptr [ebp - 0xc], bx
            //   66895df6             | mov                 word ptr [ebp - 0xa], bx
            //   53                   | push                ebx

        $sequence_16 = { 648b1530000000 8b520c 8b521c 8b5a08 }
            // n = 4, score = 200
            //   648b1530000000       | mov                 edx, dword ptr fs:[0x30]
            //   8b520c               | mov                 edx, dword ptr [edx + 0xc]
            //   8b521c               | mov                 edx, dword ptr [edx + 0x1c]
            //   8b5a08               | mov                 ebx, dword ptr [edx + 8]

        $sequence_17 = { 8b733c 8b741e78 03f3 56 8b7620 }
            // n = 5, score = 200
            //   8b733c               | mov                 esi, dword ptr [ebx + 0x3c]
            //   8b741e78             | mov                 esi, dword ptr [esi + ebx + 0x78]
            //   03f3                 | add                 esi, ebx
            //   56                   | push                esi
            //   8b7620               | mov                 esi, dword ptr [esi + 0x20]

        $sequence_18 = { 75f2 ab c3 56 }
            // n = 4, score = 100
            //   75f2                 | jne                 0xfffffff4
            //   ab                   | stosd               dword ptr es:[edi], eax
            //   c3                   | ret                 
            //   56                   | push                esi

        $sequence_19 = { 85c0 7477 50 8bf8 8b4d0c }
            // n = 5, score = 100
            //   85c0                 | test                eax, eax
            //   7477                 | je                  0x79
            //   50                   | push                eax
            //   8bf8                 | mov                 edi, eax
            //   8b4d0c               | mov                 ecx, dword ptr [ebp + 0xc]

        $sequence_20 = { 85c0 7412 03c3 85c0 740c 8d4b08 51 }
            // n = 7, score = 100
            //   85c0                 | test                eax, eax
            //   7412                 | je                  0x14
            //   03c3                 | add                 eax, ebx
            //   85c0                 | test                eax, eax
            //   740c                 | je                  0xe
            //   8d4b08               | lea                 ecx, [ebx + 8]
            //   51                   | push                ecx

        $sequence_21 = { ff5644 8b4508 8b483c 034f54 8b7df8 }
            // n = 5, score = 100
            //   ff5644               | call                dword ptr [esi + 0x44]
            //   8b4508               | mov                 eax, dword ptr [ebp + 8]
            //   8b483c               | mov                 ecx, dword ptr [eax + 0x3c]
            //   034f54               | add                 ecx, dword ptr [edi + 0x54]
            //   8b7df8               | mov                 edi, dword ptr [ebp - 8]

        $sequence_22 = { eb0d ff75f8 e8???????? 8b45f8 eb02 33c0 }
            // n = 6, score = 100
            //   eb0d                 | jmp                 0xf
            //   ff75f8               | push                dword ptr [ebp - 8]
            //   e8????????           |                     
            //   8b45f8               | mov                 eax, dword ptr [ebp - 8]
            //   eb02                 | jmp                 4
            //   33c0                 | xor                 eax, eax

        $sequence_23 = { 68f0000000 57 50 ff5650 }
            // n = 4, score = 100
            //   68f0000000           | push                0xf0
            //   57                   | push                edi
            //   50                   | push                eax
            //   ff5650               | call                dword ptr [esi + 0x50]

    condition:
        7 of them and filesize < 860160
}
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