Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    11-12-2024 06:37

General

  • Target

    8b094f4a3c05e51cad6570696b6ddca105627121fc90d35a89dc6c1b5b4ae5a9.exe

  • Size

    7.8MB

  • MD5

    71c28b5512c71ccb907789d6fd6af859

  • SHA1

    b04c866bfd370663a2805d781609896719c11bbe

  • SHA256

    8b094f4a3c05e51cad6570696b6ddca105627121fc90d35a89dc6c1b5b4ae5a9

  • SHA512

    d0791e34e786320fcace79dd6b01b0163d01649df5ba1b1f30a4b5d24ae1ca619e1de8758de0f3169cc20f7be11572bf23d4f001ca4118a066b86a6d9911b5dc

  • SSDEEP

    196608:tmCyyr0Em5/6rNUpNvBLrKVgF6mM0tFT31KdifTcd:tYyr0EyZpNvJAtU1Fro

Malware Config

Signatures

  • Detect Socks5Systemz Payload 1 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Socks5systemz family
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 6 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in Program Files directory 63 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Runs net.exe
  • Suspicious use of WriteProcessMemory 27 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8b094f4a3c05e51cad6570696b6ddca105627121fc90d35a89dc6c1b5b4ae5a9.exe
    "C:\Users\Admin\AppData\Local\Temp\8b094f4a3c05e51cad6570696b6ddca105627121fc90d35a89dc6c1b5b4ae5a9.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1968
    • C:\Users\Admin\AppData\Local\Temp\is-STO8F.tmp\8b094f4a3c05e51cad6570696b6ddca105627121fc90d35a89dc6c1b5b4ae5a9.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-STO8F.tmp\8b094f4a3c05e51cad6570696b6ddca105627121fc90d35a89dc6c1b5b4ae5a9.tmp" /SL5="$40156,7938122,54272,C:\Users\Admin\AppData\Local\Temp\8b094f4a3c05e51cad6570696b6ddca105627121fc90d35a89dc6c1b5b4ae5a9.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1680
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1528
      • C:\Program Files (x86)\BassMixerLib\bassmix.exe
        "C:\Program Files (x86)\BassMixerLib\bassmix.exe" -i
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2652
      • C:\Windows\SysWOW64\net.exe
        "C:\Windows\system32\net.exe" helpmsg 7
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2340
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 helpmsg 7
          4⤵
          • System Location Discovery: System Language Discovery
          PID:316
      • C:\Program Files (x86)\BassMixerLib\bassmix.exe
        "C:\Program Files (x86)\BassMixerLib\bassmix.exe" -s
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:1972

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files (x86)\BassMixerLib\bassmix.exe

    Filesize

    3.6MB

    MD5

    67439dd3d117233ea2699e4eea18e6b1

    SHA1

    2e25e36ae39dd34dc3dfec9228a459b6d2606709

    SHA256

    7e5ec5043fa09a75da920c1a4038b4fbba1be49033e5c9df120a457dbacaae1c

    SHA512

    1e493987c3628323476a57076a7c952bb53147d95dc84075997b4ac067d9d0c234f8614809afa492a7196cf7cdd4fecf0629059793d5cbfed45947d84e49e6f5

  • \Users\Admin\AppData\Local\Temp\is-5FRAL.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • \Users\Admin\AppData\Local\Temp\is-5FRAL.tmp\_isetup\_isdecmp.dll

    Filesize

    13KB

    MD5

    a813d18268affd4763dde940246dc7e5

    SHA1

    c7366e1fd925c17cc6068001bd38eaef5b42852f

    SHA256

    e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

    SHA512

    b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

  • \Users\Admin\AppData\Local\Temp\is-5FRAL.tmp\_isetup\_shfoldr.dll

    Filesize

    22KB

    MD5

    92dc6ef532fbb4a5c3201469a5b5eb63

    SHA1

    3e89ff837147c16b4e41c30d6c796374e0b8e62c

    SHA256

    9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

    SHA512

    9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

  • \Users\Admin\AppData\Local\Temp\is-STO8F.tmp\8b094f4a3c05e51cad6570696b6ddca105627121fc90d35a89dc6c1b5b4ae5a9.tmp

    Filesize

    694KB

    MD5

    5525670a9e72d77b368a9aa4b8c814c1

    SHA1

    3fdad952ea00175f3a6e549b5dca4f568e394612

    SHA256

    1180706added2a7899f08f25a9f88ecff5d003ba8964f918d00779565e4a6978

    SHA512

    757249f7e67f82522a8e3079a22c5cf92111626446a32ad3ef876f23885f62d1bb5bf3238d564e23531d062fe18742568dfc00e33b049bb8eef05eb953ef981a

  • memory/1680-162-0x0000000003190000-0x0000000003523000-memory.dmp

    Filesize

    3.6MB

  • memory/1680-161-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/1680-152-0x0000000003190000-0x0000000003523000-memory.dmp

    Filesize

    3.6MB

  • memory/1680-12-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/1968-2-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/1968-163-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1968-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/1972-178-0x0000000000400000-0x0000000000793000-memory.dmp

    Filesize

    3.6MB

  • memory/1972-190-0x0000000000400000-0x0000000000793000-memory.dmp

    Filesize

    3.6MB

  • memory/1972-199-0x0000000000400000-0x0000000000793000-memory.dmp

    Filesize

    3.6MB

  • memory/1972-196-0x0000000000400000-0x0000000000793000-memory.dmp

    Filesize

    3.6MB

  • memory/1972-165-0x0000000000400000-0x0000000000793000-memory.dmp

    Filesize

    3.6MB

  • memory/1972-166-0x0000000000400000-0x0000000000793000-memory.dmp

    Filesize

    3.6MB

  • memory/1972-169-0x0000000000400000-0x0000000000793000-memory.dmp

    Filesize

    3.6MB

  • memory/1972-172-0x0000000000400000-0x0000000000793000-memory.dmp

    Filesize

    3.6MB

  • memory/1972-175-0x0000000000400000-0x0000000000793000-memory.dmp

    Filesize

    3.6MB

  • memory/1972-193-0x0000000000400000-0x0000000000793000-memory.dmp

    Filesize

    3.6MB

  • memory/1972-181-0x0000000000400000-0x0000000000793000-memory.dmp

    Filesize

    3.6MB

  • memory/1972-182-0x0000000002A40000-0x0000000002AE2000-memory.dmp

    Filesize

    648KB

  • memory/1972-187-0x0000000000400000-0x0000000000793000-memory.dmp

    Filesize

    3.6MB

  • memory/1972-159-0x0000000000400000-0x0000000000793000-memory.dmp

    Filesize

    3.6MB

  • memory/2652-153-0x0000000000400000-0x0000000000793000-memory.dmp

    Filesize

    3.6MB

  • memory/2652-154-0x0000000000400000-0x0000000000793000-memory.dmp

    Filesize

    3.6MB

  • memory/2652-157-0x0000000000400000-0x0000000000793000-memory.dmp

    Filesize

    3.6MB