Analysis

  • max time kernel
    121s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    01-08-2024 07:53

General

  • Target

    7fb95a278a19e2e617103073ce277949_JaffaCakes118.exe

  • Size

    1.0MB

  • MD5

    7fb95a278a19e2e617103073ce277949

  • SHA1

    b35d3abe168e600e479fe4ee0a9bbd0d16896293

  • SHA256

    e10ceccfa2079cd2c7fbd113a12b2543089858353aa864120ac4fa4293a44c82

  • SHA512

    f3a7abb1041b9cb894e11d240e651e1874f4698a426f652afa82360065da05cbbed3e7910b8cd3a82bc38b35e6ce5a07b8cc110e7c3823816fc4e4104fb112b8

  • SSDEEP

    24576:FhXEizcghu+seL01pUbWm/FZk8KDdZprnIRWmAZfwv:z0rgw+s8k8KZ6DA1e

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

rat298.no-ip.biz:1604

Mutex

DC_MUTEX-0GZYHZ0

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    z8rgSbLtXLFl

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Signatures

  • Darkcomet

    DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Sets file to hidden 1 TTPs 2 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 24 IoCs
  • Suspicious use of WriteProcessMemory 51 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7fb95a278a19e2e617103073ce277949_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\7fb95a278a19e2e617103073ce277949_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2424
    • C:\Users\Admin\AppData\Local\Temp\svchost.exe
      C:\Users\Admin\AppData\Local\Temp\svchost.exe
      2⤵
      • Modifies WinLogon for persistence
      • Executes dropped EXE
      • Loads dropped DLL
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1816
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\svchost.exe" +s +h
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2008
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp\svchost.exe" +s +h
          4⤵
          • Sets file to hidden
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:2536
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2780
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
          4⤵
          • Sets file to hidden
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:2560
      • C:\Windows\SysWOW64\notepad.exe
        notepad
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2784
      • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
        "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:1792

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\svchost.exe

    Filesize

    31KB

    MD5

    ed797d8dc2c92401985d162e42ffa450

    SHA1

    0f02fc517c7facc4baefde4fe9467fb6488ebabe

    SHA256

    b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e

    SHA512

    e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2

  • memory/1816-23-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/1816-65-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/1816-29-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/1816-18-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/1816-10-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/1816-37-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/1816-36-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/1816-19-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/1816-25-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1816-21-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/1816-11-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/1816-14-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/1816-27-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/1816-15-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2424-30-0x0000000000540000-0x0000000000640000-memory.dmp

    Filesize

    1024KB

  • memory/2424-2-0x00000000743B0000-0x000000007495B000-memory.dmp

    Filesize

    5.7MB

  • memory/2424-4-0x00000000743B0000-0x000000007495B000-memory.dmp

    Filesize

    5.7MB

  • memory/2424-31-0x0000000000540000-0x0000000000640000-memory.dmp

    Filesize

    1024KB

  • memory/2424-35-0x00000000743B0000-0x000000007495B000-memory.dmp

    Filesize

    5.7MB

  • memory/2424-1-0x00000000743B0000-0x000000007495B000-memory.dmp

    Filesize

    5.7MB

  • memory/2424-0-0x00000000743B1000-0x00000000743B2000-memory.dmp

    Filesize

    4KB

  • memory/2784-42-0x0000000000080000-0x0000000000081000-memory.dmp

    Filesize

    4KB

  • memory/2784-57-0x0000000000190000-0x0000000000191000-memory.dmp

    Filesize

    4KB