SYMBOLCOMMON_NAMEaka. SYNONYMS
win.lcpdot (Back to overview)

LCPDot

Actor(s): Lazarus Group


There is no description at this point.

References
2022-05-05NCC GroupMichael Matthews, Nikolaos Pantazopoulos
@online{matthews:20220505:north:22bd1ef, author = {Michael Matthews and Nikolaos Pantazopoulos}, title = {{North Korea’s Lazarus: their initial access trade-craft using social media and social engineering}}, date = {2022-05-05}, organization = {NCC Group}, url = {https://research.nccgroup.com/2022/05/05/north-koreas-lazarus-and-their-initial-access-trade-craft-using-social-media-and-social-engineering/}, language = {English}, urldate = {2022-05-05} } North Korea’s Lazarus: their initial access trade-craft using social media and social engineering
LCPDot
2022-03-31KasperskyGReAT
@online{great:20220331:lazarus:540b96e, author = {GReAT}, title = {{Lazarus Trojanized DeFi app for delivering malware}}, date = {2022-03-31}, organization = {Kaspersky}, url = {https://securelist.com/lazarus-trojanized-defi-app/106195/}, language = {English}, urldate = {2022-04-04} } Lazarus Trojanized DeFi app for delivering malware
LCPDot
2021-04-15AhnLabAhnLab ASEC Analysis Team
@techreport{team:20210415:operation:98f465e, author = {AhnLab ASEC Analysis Team}, title = {{Operation Dream Job Targeting Job Seekers in South Korea}}, date = {2021-04-15}, institution = {AhnLab}, url = {https://global.ahnlab.com/global/upload/download/asecreport/ASEC%20REPORT_vol.102_ENG%20(4).pdf}, language = {English}, urldate = {2021-05-25} } Operation Dream Job Targeting Job Seekers in South Korea
LCPDot Torisma
2021-01-26JPCERT/CCShusei Tomonaga
@online{tomonaga:20210126:operation:bc16746, author = {Shusei Tomonaga}, title = {{Operation Dream Job by Lazarus}}, date = {2021-01-26}, organization = {JPCERT/CC}, url = {https://blogs.jpcert.or.jp/en/2021/01/Lazarus_malware2.html}, language = {English}, urldate = {2021-01-27} } Operation Dream Job by Lazarus
LCPDot Torisma Lazarus Group
Yara Rules
[TLP:WHITE] win_lcpdot_auto (20220808 | Detects win.lcpdot.)
rule win_lcpdot_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2022-08-05"
        version = "1"
        description = "Detects win.lcpdot."
        info = "autogenerated rule brought to you by yara-signator"
        tool = "yara-signator v0.6.0"
        signator_config = "callsandjumps;datarefs;binvalue"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.lcpdot"
        malpedia_rule_date = "20220805"
        malpedia_hash = "6ec06c64bcfdbeda64eff021c766b4ce34542b71"
        malpedia_version = "20220808"
        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 = { 488bcf e8???????? 48baeea7c64b37894100 4c8bd8 488b4348 482bd0 4883fa01 }
            // n = 7, score = 100
            //   488bcf               | inc                 esp
            //   e8????????           |                     
            //   48baeea7c64b37894100     | mov    dword ptr [esp + 0x78], esi
            //   4c8bd8               | inc                 esp
            //   488b4348             | mov                 dword ptr [esp + 0x7c], ebp
            //   482bd0               | dec                 esp
            //   4883fa01             | mov                 dword ptr [ebp - 0x80], esi

        $sequence_1 = { 4889842450080000 33f6 4c8be9 488b4908 }
            // n = 4, score = 100
            //   4889842450080000     | mov                 dword ptr [ebx + 0x20], edi
            //   33f6                 | dec                 eax
            //   4c8be9               | xor                 eax, esp
            //   488b4908             | dec                 eax

        $sequence_2 = { ff15???????? 4885ff 7409 488bcf ff15???????? 33c0 488b8d60040000 }
            // n = 7, score = 100
            //   ff15????????         |                     
            //   4885ff               | sub                 eax, eax
            //   7409                 | dec                 eax
            //   488bcf               | mov                 eax, dword ptr [esp + 0x50]
            //   ff15????????         |                     
            //   33c0                 | dec                 eax
            //   488b8d60040000       | lea                 ecx, [0x131bb]

        $sequence_3 = { 4833c4 4889842440040000 488bf1 8bfa }
            // n = 4, score = 100
            //   4833c4               | call                dword ptr [ebx + 8]
            //   4889842440040000     | dec                 esp
            //   488bf1               | mov                 ebx, dword ptr [ebx]
            //   8bfa                 | mov                 edx, 1

        $sequence_4 = { 4c8d442440 418d5513 c744243800020000 4c896c2420 }
            // n = 4, score = 100
            //   4c8d442440           | dec                 eax
            //   418d5513             | test                ecx, ecx
            //   c744243800020000     | je                  0xb93
            //   4c896c2420           | dec                 eax

        $sequence_5 = { 4c8d2d0a2f0100 41b804010000 668935???????? 498bd5 ff15???????? 418d7c24e7 85c0 }
            // n = 7, score = 100
            //   4c8d2d0a2f0100       | mov                 esi, eax
            //   41b804010000         | inc                 ecx
            //   668935????????       |                     
            //   498bd5               | call                dword ptr [eax + 8]
            //   ff15????????         |                     
            //   418d7c24e7           | test                eax, eax
            //   85c0                 | je                  0xe4b

        $sequence_6 = { e8???????? 85c0 7511 488b9c24b0000000 }
            // n = 4, score = 100
            //   e8????????           |                     
            //   85c0                 | dec                 esp
            //   7511                 | lea                 eax, [0xbeb7]
            //   488b9c24b0000000     | inc                 ecx

        $sequence_7 = { 488d2d012f0100 41bc14030000 4c8d0574bf0000 488bcd 418bd4 }
            // n = 5, score = 100
            //   488d2d012f0100       | xor                 edx, edx
            //   41bc14030000         | dec                 eax
            //   4c8d0574bf0000       | mov                 ecx, edi
            //   488bcd               | mov                 dword ptr [ebp + 0x258], 0
            //   418bd4               | test                eax, eax

        $sequence_8 = { 488b05???????? 488b0d???????? 33d2 44895838 488b4910 448d4210 }
            // n = 6, score = 100
            //   488b05????????       |                     
            //   488b0d????????       |                     
            //   33d2                 | jne                 0x4e7
            //   44895838             | dec                 eax
            //   488b4910             | mov                 ecx, dword ptr [esi + 0xb8]
            //   448d4210             | dec                 esp

        $sequence_9 = { 55 56 57 4154 4155 4881ec58020000 }
            // n = 6, score = 100
            //   55                   | mov                 eax, 0x1f3
            //   56                   | mov                 byte ptr [esp + 0x40], 0
            //   57                   | dec                 eax
            //   4154                 | or                  ecx, 0xffffffff
            //   4155                 | xor                 eax, eax
            //   4881ec58020000       | xor                 edx, edx

    condition:
        7 of them and filesize < 257024
}
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