Analysis

  • max time kernel
    150s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-10-2024 03:51

General

  • Target

    7dcb161b14ca739323b7b7b225fe9399_JaffaCakes118.exe

  • Size

    960KB

  • MD5

    7dcb161b14ca739323b7b7b225fe9399

  • SHA1

    1ab208956de9f12ad38f85a96df460cc230f4738

  • SHA256

    b4fcd8a1db7185a8a98242f364ee2bc287a395c14192636d9b2ba18d3fffafc4

  • SHA512

    d2e0cbd92e557168970153ef246e3f1f525be8a1bdb50a7bef4c2b83e92ad5fc8eb2a9abcf6e5aa3df04c1d1dd31b54b6195b20f9942d2c6e4feeff5d4d5371c

  • SSDEEP

    24576:0lMUmv5Sb4wEKVHhVKTSiHw+ABdF1+Wa:eMzBKtQnHIdF1

Malware Config

Extracted

Family

darkcomet

Botnet

Boot

C2

triyaki43.no-ip.biz:15963

Mutex

DC_MUTEX-WD4S0KL

Attributes
  • gencode

    e25QGRAce2Dz

  • install

    false

  • offline_keylogger

    true

  • persistence

    false

Signatures

  • Darkcomet

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

  • Darkcomet family
  • Modifies firewall policy service 3 TTPs 3 IoCs
  • Modifies security service 2 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 2 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Disables Task Manager via registry modification
  • Sets file to hidden 1 TTPs 1 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Windows security modification 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 5 IoCs

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

  • Modifies registry class 4 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 26 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 48 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7dcb161b14ca739323b7b7b225fe9399_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\7dcb161b14ca739323b7b7b225fe9399_JaffaCakes118.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2488
    • C:\Users\Admin\AppData\Local\Temp\7dcb161b14ca739323b7b7b225fe9399_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\7dcb161b14ca739323b7b7b225fe9399_JaffaCakes118.exe"
      2⤵
      • Checks BIOS information in registry
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4392
      • C:\Users\Admin\AppData\Local\Temp\7dcb161b14ca739323b7b7b225fe9399_JaffaCakes118.EXE
        "C:\Users\Admin\AppData\Local\Temp\7dcb161b14ca739323b7b7b225fe9399_JaffaCakes118.EXE"
        3⤵
        • Modifies firewall policy service
        • Modifies security service
        • Windows security bypass
        • Disables RegEdit via registry modification
        • Checks computer location settings
        • Windows security modification
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3596
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2532
          • C:\Windows\SysWOW64\attrib.exe
            attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
            5⤵
            • Sets file to hidden
            • System Location Discovery: System Language Discovery
            • Views/modifies file attributes
            PID:952

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/3596-30-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/3596-31-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/3596-25-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/3596-26-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/3596-13-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/3596-15-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/3596-24-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/3596-17-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/3596-19-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/3596-21-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/3596-23-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/3596-22-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/3596-37-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/3596-36-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/3596-35-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/3596-27-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/3596-28-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/3596-29-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/3596-34-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/3596-33-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/3596-32-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/4392-8-0x0000000000400000-0x0000000000501000-memory.dmp

    Filesize

    1.0MB

  • memory/4392-2-0x0000000000510000-0x0000000000533000-memory.dmp

    Filesize

    140KB

  • memory/4392-10-0x0000000000510000-0x0000000000533000-memory.dmp

    Filesize

    140KB

  • memory/4392-9-0x0000000000400000-0x0000000000501000-memory.dmp

    Filesize

    1.0MB

  • memory/4392-16-0x0000000000510000-0x0000000000533000-memory.dmp

    Filesize

    140KB