Analysis

  • max time kernel
    112s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-12-2024 07:45

General

  • Target

    76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.exe

  • Size

    7.8MB

  • MD5

    e554655c247a390fe0bd391bf54776da

  • SHA1

    f182267452dbccdb28d2a0f74eb59d3e652038ae

  • SHA256

    76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8

  • SHA512

    c159a844ef1564e1308aaba5dd60b90356a3a9a482280a2947b6507468468c5d6d85f380d7696e1a76259000263b425a0bf8456b4e2b5206652fdcfdb91990df

  • SSDEEP

    196608:+TgbRGSHLDj2kjBRbd3+TnH5D4vltlCIBeiQf6e4mhV9:HbRG8LP2WlsZD4vloLf6e4En

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 3 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 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.exe
    "C:\Users\Admin\AppData\Local\Temp\76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2320
    • C:\Users\Admin\AppData\Local\Temp\is-GMDCN.tmp\76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-GMDCN.tmp\76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp" /SL5="$602C4,7945557,54272,C:\Users\Admin\AppData\Local\Temp\76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.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:3892
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4652
      • 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:4276
      • C:\Windows\SysWOW64\net.exe
        "C:\Windows\system32\net.exe" helpmsg 7
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3776
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 helpmsg 7
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1320
      • 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:1660

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    3.6MB

    MD5

    d19f25c705d64721ac18a53f8a5d5d12

    SHA1

    9992344a9cd183e2d7a02f3464a05d994877866d

    SHA256

    1d63bc61bf361dae8e34902845aee92de7124aa6980b4ebe36dc5cbf643f61c4

    SHA512

    493c43cab428006195d40c072b79d7b3df640b2c3ddf675464755c7c9d74a5bd94d27c290abd0479bcfe4cf98100464b61e640e3faf4bf4661003fcf8edd00fd

  • C:\Users\Admin\AppData\Local\Temp\is-CJHRN.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • C:\Users\Admin\AppData\Local\Temp\is-CJHRN.tmp\_isetup\_isdecmp.dll

    Filesize

    13KB

    MD5

    a813d18268affd4763dde940246dc7e5

    SHA1

    c7366e1fd925c17cc6068001bd38eaef5b42852f

    SHA256

    e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

    SHA512

    b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

  • C:\Users\Admin\AppData\Local\Temp\is-GMDCN.tmp\76ab534e8927d4b89dab2d3239d20c0abca5b3d38c930e4f105467956de76ee8.tmp

    Filesize

    694KB

    MD5

    5525670a9e72d77b368a9aa4b8c814c1

    SHA1

    3fdad952ea00175f3a6e549b5dca4f568e394612

    SHA256

    1180706added2a7899f08f25a9f88ecff5d003ba8964f918d00779565e4a6978

    SHA512

    757249f7e67f82522a8e3079a22c5cf92111626446a32ad3ef876f23885f62d1bb5bf3238d564e23531d062fe18742568dfc00e33b049bb8eef05eb953ef981a

  • memory/1660-177-0x0000000000400000-0x0000000000791000-memory.dmp

    Filesize

    3.6MB

  • memory/1660-168-0x0000000000400000-0x0000000000791000-memory.dmp

    Filesize

    3.6MB

  • memory/1660-195-0x0000000000400000-0x0000000000791000-memory.dmp

    Filesize

    3.6MB

  • memory/1660-192-0x0000000000400000-0x0000000000791000-memory.dmp

    Filesize

    3.6MB

  • memory/1660-189-0x0000000000400000-0x0000000000791000-memory.dmp

    Filesize

    3.6MB

  • memory/1660-186-0x0000000000400000-0x0000000000791000-memory.dmp

    Filesize

    3.6MB

  • memory/1660-157-0x0000000000400000-0x0000000000791000-memory.dmp

    Filesize

    3.6MB

  • memory/1660-183-0x0000000000400000-0x0000000000791000-memory.dmp

    Filesize

    3.6MB

  • memory/1660-178-0x0000000000A60000-0x0000000000B02000-memory.dmp

    Filesize

    648KB

  • memory/1660-162-0x0000000000400000-0x0000000000791000-memory.dmp

    Filesize

    3.6MB

  • memory/1660-165-0x0000000000400000-0x0000000000791000-memory.dmp

    Filesize

    3.6MB

  • memory/1660-174-0x0000000000400000-0x0000000000791000-memory.dmp

    Filesize

    3.6MB

  • memory/1660-171-0x0000000000400000-0x0000000000791000-memory.dmp

    Filesize

    3.6MB

  • memory/2320-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2320-160-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2320-2-0x0000000000401000-0x000000000040B000-memory.dmp

    Filesize

    40KB

  • memory/3892-10-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/3892-159-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/4276-155-0x0000000000400000-0x0000000000791000-memory.dmp

    Filesize

    3.6MB

  • memory/4276-151-0x0000000000400000-0x0000000000791000-memory.dmp

    Filesize

    3.6MB

  • memory/4276-150-0x0000000000400000-0x0000000000791000-memory.dmp

    Filesize

    3.6MB