SYMBOLCOMMON_NAMEaka. SYNONYMS
win.dyepack (Back to overview)

DYEPACK

aka: swift

Actor(s): Lazarus Group


There is no description at this point.

References
2020-02-19LexfoLexfo
@techreport{lexfo:20200219:lazarus:f293c37, author = {Lexfo}, title = {{The Lazarus Constellation A study on North Korean malware}}, date = {2020-02-19}, institution = {Lexfo}, url = {https://blog.lexfo.fr/ressources/Lexfo-WhitePaper-The_Lazarus_Constellation.pdf}, language = {English}, urldate = {2020-03-11} } The Lazarus Constellation A study on North Korean malware
FastCash AppleJeus BADCALL Bankshot Brambul Dtrack Duuzer DYEPACK ELECTRICFISH HARDRAIN Hermes HOPLIGHT Joanap KEYMARBLE Kimsuky MimiKatz MyDoom NACHOCHEESE NavRAT PowerRatankba RokRAT Sierra(Alfa,Bravo, ...) Volgmer WannaCryptor
2019-03-20Github (649)@037
@online{037:20190320:apt38:4c7f1d4, author = {@037}, title = {{APT38 DYEPACK FRAMEWORK}}, date = {2019-03-20}, organization = {Github (649)}, url = {https://github.com/649/APT38-DYEPACK}, language = {English}, urldate = {2019-12-17} } APT38 DYEPACK FRAMEWORK
DYEPACK
2018FireEyeFireEye
@online{fireeye:2018:apt38:20161b7, author = {FireEye}, title = {{APT38}}, date = {2018}, organization = {FireEye}, url = {https://content.fireeye.com/apt/rpt-apt38}, language = {English}, urldate = {2020-01-13} } APT38
Bitsran BLINDTOAD BOOTWRECK Contopee DarkComet DYEPACK HOTWAX NESTEGG PowerRatankba REDSHAWL WORMHOLE Lazarus Group
2017-04-03Kaspersky LabsGReAT
@online{great:20170403:lazarus:689432c, author = {GReAT}, title = {{Lazarus under the Hood}}, date = {2017-04-03}, organization = {Kaspersky Labs}, url = {https://securelist.com/blog/sas/77908/lazarus-under-the-hood/}, language = {English}, urldate = {2019-12-20} } Lazarus under the Hood
Alreay DYEPACK
Yara Rules
[TLP:WHITE] win_dyepack_auto (20201014 | autogenerated rule brought to you by yara-signator)
rule win_dyepack_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.dyepack"
        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 = { 72ac 56 ff15???????? 56 ff15???????? }
            // n = 5, score = 300
            //   72ac                 | jb                  0xffffffae
            //   56                   | push                esi
            //   ff15????????         |                     
            //   56                   | push                esi
            //   ff15????????         |                     

        $sequence_1 = { 7cb2 7f08 8b4c2410 3be9 72ac 56 }
            // n = 6, score = 300
            //   7cb2                 | jl                  0xffffffb4
            //   7f08                 | jg                  0xa
            //   8b4c2410             | mov                 ecx, dword ptr [esp + 0x10]
            //   3be9                 | cmp                 ebp, ecx
            //   72ac                 | jb                  0xffffffae
            //   56                   | push                esi

        $sequence_2 = { 7f08 8b4c2410 3be9 72ac }
            // n = 4, score = 300
            //   7f08                 | jg                  0xa
            //   8b4c2410             | mov                 ecx, dword ptr [esp + 0x10]
            //   3be9                 | cmp                 ebp, ecx
            //   72ac                 | jb                  0xffffffae

        $sequence_3 = { 3be9 72ac 56 ff15???????? 56 ff15???????? 8b8c2428100000 }
            // n = 7, score = 300
            //   3be9                 | cmp                 ebp, ecx
            //   72ac                 | jb                  0xffffffae
            //   56                   | push                esi
            //   ff15????????         |                     
            //   56                   | push                esi
            //   ff15????????         |                     
            //   8b8c2428100000       | mov                 ecx, dword ptr [esp + 0x1028]

        $sequence_4 = { ffd7 8d4c2418 53 51 8d54242c }
            // n = 5, score = 300
            //   ffd7                 | call                edi
            //   8d4c2418             | lea                 ecx, [esp + 0x18]
            //   53                   | push                ebx
            //   51                   | push                ecx
            //   8d54242c             | lea                 edx, [esp + 0x2c]

        $sequence_5 = { 8b3d???????? 55 6a02 53 }
            // n = 4, score = 300
            //   8b3d????????         |                     
            //   55                   | push                ebp
            //   6a02                 | push                2
            //   53                   | push                ebx

        $sequence_6 = { 3be9 72ac 56 ff15???????? 56 }
            // n = 5, score = 300
            //   3be9                 | cmp                 ebp, ecx
            //   72ac                 | jb                  0xffffffae
            //   56                   | push                esi
            //   ff15????????         |                     
            //   56                   | push                esi

        $sequence_7 = { 56 ffd7 8d4c2418 53 51 }
            // n = 5, score = 300
            //   56                   | push                esi
            //   ffd7                 | call                edi
            //   8d4c2418             | lea                 ecx, [esp + 0x18]
            //   53                   | push                ebx
            //   51                   | push                ecx

        $sequence_8 = { 885c2420 f3ab 66ab 53 6880000000 6a03 }
            // n = 6, score = 300
            //   885c2420             | mov                 byte ptr [esp + 0x20], bl
            //   f3ab                 | rep stosd           dword ptr es:[edi], eax
            //   66ab                 | stosw               word ptr es:[edi], ax
            //   53                   | push                ebx
            //   6880000000           | push                0x80
            //   6a03                 | push                3

        $sequence_9 = { 8d542418 53 52 8d44242c }
            // n = 4, score = 300
            //   8d542418             | lea                 edx, [esp + 0x18]
            //   53                   | push                ebx
            //   52                   | push                edx
            //   8d44242c             | lea                 eax, [esp + 0x2c]

    condition:
        7 of them and filesize < 212992
}
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