SYMBOLCOMMON_NAMEaka. SYNONYMS
win.sakula_rat (Back to overview)

Sakula RAT

aka: Sakurel

Actor(s): APT 26, Hurricane Panda


Sakula / Sakurel is a trojan horse that opens a back door and downloads potentially malicious files onto the compromised computer.

References
2018-11-16CyberThreatIntelligence BlogAction09
@online{action09:20181116:c0ld:89e6c06, author = {Action09}, title = {{(C)0ld Case : From Aerospace to China’s interests.}}, date = {2018-11-16}, organization = {CyberThreatIntelligence Blog}, url = {https://cyberthreatintelligenceblog.wordpress.com/2018/11/16/c0ld-case-from-aerospace-to-chinas-interests/}, language = {English}, urldate = {2020-01-07} } (C)0ld Case : From Aerospace to China’s interests.
Sakula RAT
2016-07-14Github (nccgroup)NCC Group PLC
@online{plc:20160714:technical:a0afcbd, author = {NCC Group PLC}, title = {{Technical Notes on Sakula}}, date = {2016-07-14}, organization = {Github (nccgroup)}, url = {https://github.com/nccgroup/Cyber-Defence/tree/master/Technical%20Notes/Sakula}, language = {English}, urldate = {2020-01-08} } Technical Notes on Sakula
Sakula RAT
2015-08-06SymantecJon DiMaggio
@techreport{dimaggio:20150806:black:b0fbb35, author = {Jon DiMaggio}, title = {{The Black Vine cyberespionage group}}, date = {2015-08-06}, institution = {Symantec}, url = {https://www-west.symantec.com/content/dam/symantec/docs/security-center/white-papers/black-vine-cyberespionage-group-15-en.pdf}, language = {English}, urldate = {2020-04-21} } The Black Vine cyberespionage group
Sakula RAT Shell Crew
2015-07-30SecureworksDell Secureworks CTU
@online{ctu:20150730:sakula:8025917, author = {Dell Secureworks CTU}, title = {{Sakula Malware Family}}, date = {2015-07-30}, organization = {Secureworks}, url = {https://www.secureworks.com/research/sakula-malware-family}, language = {English}, urldate = {2020-01-06} } Sakula Malware Family
Sakula RAT
2015-02-06CrowdStrikeCrowdStrike
@techreport{crowdstrike:20150206:crowdstrike:fbcc37f, author = {CrowdStrike}, title = {{CrowdStrike Global Threat Intel Report 2014}}, date = {2015-02-06}, institution = {CrowdStrike}, url = {https://web.archive.org/web/20200509171721/https://raw.githubusercontent.com/fdiskyou/threat-INTel/master/2015/GlobalThreatIntelReport.pdf}, language = {English}, urldate = {2020-05-11} } CrowdStrike Global Threat Intel Report 2014
BlackPOS CryptoLocker Derusbi Elise Enfal EvilGrab Gameover P2P HttpBrowser Medusa Mirage Naikon NetTraveler pirpi PlugX Poison Ivy Sakula RAT Sinowal sykipot taidoor
2014-02-23SymantecSymantec
@online{symantec:20140223:trojansakurel:9674bd4, author = {Symantec}, title = {{Trojan.Sakurel}}, date = {2014-02-23}, organization = {Symantec}, url = {https://www.symantec.com/security_response/writeup.jsp?docid=2014-022401-3212-99}, language = {English}, urldate = {2020-01-06} } Trojan.Sakurel
Sakula RAT
Yara Rules
[TLP:WHITE] win_sakula_rat_auto (20201014 | autogenerated rule brought to you by yara-signator)
rule win_sakula_rat_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.sakula_rat"
        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 = { 6a00 6800010000 6a00 6a00 68???????? }
            // n = 5, score = 300
            //   6a00                 | mov                 edx, ebx
            //   6800010000           | mov                 dword ptr [ebx], edi
            //   6a00                 | mov                 dword ptr [ebx + 0x14], 4
            //   6a00                 | push                edi
            //   68????????           |                     

        $sequence_1 = { 84c9 75f9 2bc6 8d7c0002 57 }
            // n = 5, score = 200
            //   84c9                 | push                0x100
            //   75f9                 | push                0
            //   2bc6                 | push                0
            //   8d7c0002             | push                edx
            //   57                   | push                0

        $sequence_2 = { 52 6a00 ff15???????? 8bf0 56 6a00 ff15???????? }
            // n = 7, score = 200
            //   52                   | movsx               edx, byte ptr [ecx]
            //   6a00                 | cmp                 edx, 0x41
            //   ff15????????         |                     
            //   8bf0                 | jl                  0x24
            //   56                   | mov                 dword ptr [ebp - 0xc], eax
            //   6a00                 | mov                 dword ptr [ebp - 0x10], eax
            //   ff15????????         |                     

        $sequence_3 = { 6a00 68???????? e8???????? 68fa000000 6a00 68???????? e8???????? }
            // n = 7, score = 200
            //   6a00                 | mov                 esi, eax
            //   68????????           |                     
            //   e8????????           |                     
            //   68fa000000           | push                esi
            //   6a00                 | push                0
            //   68????????           |                     
            //   e8????????           |                     

        $sequence_4 = { 7409 f644240810 7402 b301 50 ff15???????? }
            // n = 6, score = 200
            //   7409                 | jmp                 0x3a
            //   f644240810           | mov                 eax, dword ptr [ebp - 4]
            //   7402                 | inc                 eax
            //   b301                 | cmp                 eax, ebx
            //   50                   | push                0
            //   ff15????????         |                     

        $sequence_5 = { 7405 3456 880411 41 3bce }
            // n = 5, score = 200
            //   7405                 | cmp                 byte ptr [eax + edi], 0x5c
            //   3456                 | jmp                 0xc
            //   880411               | neg                 eax
            //   41                   | sbb                 eax, eax
            //   3bce                 | and                 eax, 0xfffffffd

        $sequence_6 = { 84c9 75f9 2bc2 8bc8 85c9 7e0b 803c385c }
            // n = 7, score = 200
            //   84c9                 | mov                 dword ptr [ebp - 0x14], eax
            //   75f9                 | mov                 dword ptr [ebp - 0x18], eax
            //   2bc2                 | mov                 dword ptr [ebp - 0x1c], eax
            //   8bc8                 | push                dword ptr [eax]
            //   85c9                 | cmp                 eax, 0
            //   7e0b                 | je                  0x81
            //   803c385c             | push                0x2cc

        $sequence_7 = { eb0a f7d8 1bc0 83e0fd 83c003 682b010000 }
            // n = 6, score = 200
            //   eb0a                 | inc                 eax
            //   f7d8                 | jmp                 0xc
            //   1bc0                 | mov                 eax, 0xa
            //   83e0fd               | jmp                 9
            //   83c003               | xor                 eax, eax
            //   682b010000           | je                  4

        $sequence_8 = { 7f24 8b4d08 034df8 0fbe11 83fa41 7c16 }
            // n = 6, score = 100
            //   7f24                 | dec                 eax
            //   8b4d08               | mov                 ecx, dword ptr [esp + 0x58]
            //   034df8               | inc                 ecx
            //   0fbe11               | mov                 eax, 0x104
            //   83fa41               | cmp                 eax, 1
            //   7c16                 | jne                 0xf3

        $sequence_9 = { ff30 e8???????? 83f800 0f847b000000 68cc020000 }
            // n = 5, score = 100
            //   ff30                 | mov                 ecx, dword ptr [ebp - 8]
            //   e8????????           |                     
            //   83f800               | cmp                 ecx, dword ptr [ebp - 4]
            //   0f847b000000         | jge                 0x49
            //   68cc020000           | mov                 edx, dword ptr [ebp + 8]

        $sequence_10 = { 40 eb09 b80a000000 eb02 31c0 bb???????? }
            // n = 6, score = 100
            //   40                   | add                 edx, dword ptr [ebp - 8]
            //   eb09                 | movsx               eax, byte ptr [edx]
            //   b80a000000           | add                 esp, 8
            //   eb02                 | push                dword ptr [ebp - 0xc]
            //   31c0                 | xor                 eax, eax
            //   bb????????           |                     

        $sequence_11 = { e8???????? 83c408 68???????? ff75f4 }
            // n = 4, score = 100
            //   e8????????           |                     
            //   83c408               | mov                 eax, 0x104
            //   68????????           |                     
            //   ff75f4               | test                eax, eax

        $sequence_12 = { 8945f4 8945f0 8945ec 8945e8 8945e4 e8???????? }
            // n = 6, score = 100
            //   8945f4               | push                0
            //   8945f0               | push                0x100
            //   8945ec               | push                0
            //   8945e8               | push                0
            //   8945e4               | mov                 dword ptr [ebp - 8], eax
            //   e8????????           |                     

        $sequence_13 = { 48895c2450 4889442458 4889442460 66895de0 }
            // n = 4, score = 100
            //   48895c2450           | xor                 eax, eax
            //   4889442458           | dec                 eax
            //   4889442460           | lea                 ecx, [ebp - 0x1e]
            //   66895de0             | dec                 eax

        $sequence_14 = { ff15???????? 85c0 0f84ae000000 488bcb ff15???????? }
            // n = 5, score = 100
            //   ff15????????         |                     
            //   85c0                 | lea                 eax, [0x1da0]
            //   0f84ae000000         | dec                 eax
            //   488bcb               | lea                 ecx, [0xea9]
            //   ff15????????         |                     

        $sequence_15 = { ff15???????? cc 488b5c2450 488b742460 b801000000 }
            // n = 5, score = 100
            //   ff15????????         |                     
            //   cc                   | mov                 dword ptr [esp + 0x50], ebx
            //   488b5c2450           | dec                 eax
            //   488b742460           | mov                 dword ptr [esp + 0x58], eax
            //   b801000000           | dec                 eax

        $sequence_16 = { 488364242000 4c8d0d240f0000 ff9080000000 3bc6 }
            // n = 4, score = 100
            //   488364242000         | mov                 dword ptr [esp + 0x60], eax
            //   4c8d0d240f0000       | mov                 word ptr [ebp - 0x20], bx
            //   ff9080000000         | int3                
            //   3bc6                 | dec                 eax

        $sequence_17 = { 31c0 eb0c 31c0 40 eb07 31c0 b8ffffffff }
            // n = 7, score = 100
            //   31c0                 | je                  0xb6
            //   eb0c                 | dec                 eax
            //   31c0                 | mov                 ecx, ebx
            //   40                   | je                  0x29
            //   eb07                 | dec                 eax
            //   31c0                 | mov                 ecx, dword ptr [esp + 0x50]
            //   b8ffffffff           | lea                 edx, [ebx + 0x40]

        $sequence_18 = { 33d2 488d4c2478 448d4260 e8???????? 33db 33c0 488d4de2 }
            // n = 7, score = 100
            //   33d2                 | xor                 edx, edx
            //   488d4c2478           | dec                 eax
            //   448d4260             | lea                 ecx, [esp + 0x78]
            //   e8????????           |                     
            //   33db                 | inc                 esp
            //   33c0                 | lea                 eax, [edx + 0x60]
            //   488d4de2             | xor                 ebx, ebx

        $sequence_19 = { 7427 488b4c2450 8d5340 ff15???????? 488b4c2458 }
            // n = 5, score = 100
            //   7427                 | dec                 esp
            //   488b4c2450           | lea                 ecx, [ebp - 0x39]
            //   8d5340               | dec                 esp
            //   ff15????????         |                     
            //   488b4c2458           | lea                 eax, [0x1da0]

        $sequence_20 = { ffca 0f8516010000 488d15e61c0000 41b804010000 }
            // n = 4, score = 100
            //   ffca                 | mov                 ebx, dword ptr [esp + 0x50]
            //   0f8516010000         | dec                 eax
            //   488d15e61c0000       | mov                 esi, dword ptr [esp + 0x60]
            //   41b804010000         | mov                 eax, 1

        $sequence_21 = { 8945f8 8b4df8 3b4dfc 7d44 8b5508 0355f8 0fbe02 }
            // n = 7, score = 100
            //   8945f8               | dec                 eax
            //   8b4df8               | sub                 esp, 0x40
            //   3b4dfc               | dec                 edx
            //   7d44                 | jne                 0x11e
            //   8b5508               | dec                 eax
            //   0355f8               | lea                 edx, [0x1ce6]
            //   0fbe02               | inc                 ecx

        $sequence_22 = { e8???????? 4c8d4dc7 4c8d05a01d0000 488d0da90e0000 }
            // n = 4, score = 100
            //   e8????????           |                     
            //   4c8d4dc7             | dec                 eax
            //   4c8d05a01d0000       | and                 dword ptr [esp + 0x20], 0
            //   488d0da90e0000       | dec                 esp

    condition:
        7 of them and filesize < 229376
}
[TLP:WHITE] win_sakula_rat_w0   (20170517 | Sakula v1.0)
/*
    This Yara ruleset is under the GNU-GPLv2 license (http://www.gnu.org/licenses/gpl-2.0.html) and open to any user or organization, as    long as you use it under this license.

*/
rule win_sakula_rat_w0 {
    meta:
        description = "Sakula v1.0"
        date = "2015-10-13"
        author = "Airbus Defence and Space Cybersecurity CSIRT - Yoann Francou"
		source = "https://github.com/mattulm/sfiles_yara/blob/master/malware/Sakula.yar"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.sakula_rat"
        malpedia_version = "20170517"
        malpedia_license = "CC BY-NC-SA 4.0"
        malpedia_sharing = "TLP:WHITE"
    strings:
        $m1 = "%d_of_%d_for_%s_on_%s"
        $m2 = "/c ping 127.0.0.1 & del /q \"%s\""
        $m3 = "=%s&type=%d"
        $m4 = "?photoid="
        $m5 = "iexplorer"
                $m6 = "net start \"%s\""
        $v1_1 = "MicroPlayerUpdate.exe"

    condition:
        all of ($m*) and not $v1_1
}
[TLP:WHITE] win_sakula_rat_w1   (20170517 | Sakula v1.1)
/*
    This Yara ruleset is under the GNU-GPLv2 license (http://www.gnu.org/licenses/gpl-2.0.html) and open to any user or organization, as    long as you use it under this license.

*/

rule win_sakula_rat_w1 {
    meta:
        description = "Sakula v1.1"
        date = "2015-10-13"
        author = "Airbus Defence and Space Cybersecurity CSIRT - Yoann Francou"
		source = "https://github.com/mattulm/sfiles_yara/blob/master/malware/Sakula.yar"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.sakula_rat"
        malpedia_version = "20170517"
        malpedia_license = "CC BY-NC-SA 4.0"
        malpedia_sharing = "TLP:WHITE"
    strings:
        $m1 = "%d_of_%d_for_%s_on_%s"
        $m2 = "/c ping 127.0.0.1 & del /q \"%s\""
        $m3 = "=%s&type=%d"
        $m4 = "?photoid="
        $m5 = "iexplorer"
                $m6 = "net start \"%s\""
        $v1_1 = "MicroPlayerUpdate.exe"

    condition:
        all of them
}
[TLP:WHITE] win_sakula_rat_w2   (20170517 | Sakula v1.2)
/*
    This Yara ruleset is under the GNU-GPLv2 license (http://www.gnu.org/licenses/gpl-2.0.html) and open to any user or organization, as    long as you use it under this license.

*/


rule win_sakula_rat_w2 {
    meta:
        description = "Sakula v1.2"
        date = "2015-10-13"
        author = "Airbus Defence and Space Cybersecurity CSIRT - Yoann Francou"
		source = "https://github.com/mattulm/sfiles_yara/blob/master/malware/Sakula.yar"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.sakula_rat"
        malpedia_version = "20170517"
        malpedia_license = "CC BY-NC-SA 4.0"
        malpedia_sharing = "TLP:WHITE"
    strings:
        $m1 = "%d_of_%d_for_%s_on_%s"
        $m2 = "/c ping 127.0.0.1 & del /q \"%s\""
        $m3 = "cmd.exe /c rundll32 \"%s\""
        $v1_1 = "MicroPlayerUpdate.exe"
        $v1_2 = "CCPUpdate"

    condition:
        $m1 and $m2 and $m3 and $v1_2 and not $v1_1
}
[TLP:WHITE] win_sakula_rat_w3   (20170517 | Sakula v1.3)
/*
    This Yara ruleset is under the GNU-GPLv2 license (http://www.gnu.org/licenses/gpl-2.0.html) and open to any user or organization, as    long as you use it under this license.

*/


rule win_sakula_rat_w3 {
    meta:
        description = "Sakula v1.3"
        date = "2015-10-13"
        author = "Airbus Defence and Space Cybersecurity CSIRT - Yoann Francou"
		source = "https://github.com/mattulm/sfiles_yara/blob/master/malware/Sakula.yar"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.sakula_rat"
        malpedia_version = "20170517"
        malpedia_license = "CC BY-NC-SA 4.0"
        malpedia_sharing = "TLP:WHITE"
    strings:
        $m1 = "%d_of_%d_for_%s_on_%s"
        $m2 = "/c ping 127.0.0.1 & del /q \"%s\""
        $m3 = "cmd.exe /c rundll32 \"%s\""

        $v1_3 = { 81 3E 78 03 00 00 75 57  8D 54 24 14 52 68 0C 05 41 00 68 01 00 00 80 FF  15 00 F0 40 00 85 C0 74 10 8B 44 24 14 68 2C 31  41 00 50 FF 15 10 F0 40 00 8B 4C 24 14 51 FF 15  24 F0 40 00 E8 0F 09 00 }

    condition:
        all of them
}
[TLP:WHITE] win_sakula_rat_w4   (20170517 | Sakula v1.4)
/*
    This Yara ruleset is under the GNU-GPLv2 license (http://www.gnu.org/licenses/gpl-2.0.html) and open to any user or organization, as    long as you use it under this license.

*/

rule win_sakula_rat_w4 {
    meta:
        description = "Sakula v1.4"
        date = "2015-10-13"
        author = "Airbus Defence and Space Cybersecurity CSIRT - Yoann Francou"
		source = "https://github.com/mattulm/sfiles_yara/blob/master/malware/Sakula.yar"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.sakula_rat"
        malpedia_version = "20170517"
        malpedia_license = "CC BY-NC-SA 4.0"
        malpedia_sharing = "TLP:WHITE"
    strings:
        $m1 = "%d_of_%d_for_%s_on_%s"
        $m2 = "/c ping 127.0.0.1 & del /q \"%s\""
        $m3 = "cmd.exe /c rundll32 \"%s\""

        $v1_4 = { 50 E8 CD FC FF FF 83 C4  04 68 E8 03 00 00 FF D7 56 E8 54 12 00 00 E9 AE  FE FF FF E8 13 F5 FF FF }

    condition:
        all of them
}
Download all Yara Rules