Analysis

  • max time kernel
    150s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-01-2025 15:56

General

  • Target

    JaffaCakes118_6dc2283fb55cd0fde0341da8d56942d0.exe

  • Size

    355KB

  • MD5

    6dc2283fb55cd0fde0341da8d56942d0

  • SHA1

    dafbdd680d3ff148c6d92b242f9ad6cdea8ad820

  • SHA256

    d2d6bdbdd2588906af1326e15acc95e6c57da1fefcc6f47e7afbc6afe26c5f43

  • SHA512

    33e789b0e46d93933067acedbd40d391bbae0024070177631ce0e671772d1d31fd5a39b57edd271eac736d71269a451650003e008fedd9b4c2f24209ef9a797f

  • SSDEEP

    6144:JFirrYQwFGDtvz1gk4vyl4/t0Sw0oamQzf5RQwRV5Rl6EqXqL1:4LhWk2tFVeaBzBWwRvR4+

Malware Config

Extracted

Family

darkcomet

Botnet

Server

C2

carbonfibers.myftp.biz:1657

Mutex

darksmoke

Attributes
  • InstallPath

    winsrvc\svchost.exe

  • gencode

    q0enFnK3Hmhu

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    Services Host

Signatures

  • Darkcomet

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

  • Darkcomet family
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • UPX packed file 30 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 50 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 41 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6dc2283fb55cd0fde0341da8d56942d0.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6dc2283fb55cd0fde0341da8d56942d0.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2588
    • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6dc2283fb55cd0fde0341da8d56942d0.exe
      JaffaCakes118_6dc2283fb55cd0fde0341da8d56942d0
      2⤵
      • Modifies WinLogon for persistence
      • Checks computer location settings
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3012
      • C:\Users\Admin\AppData\Roaming\winsrvc\svchost.exe
        "C:\Users\Admin\AppData\Roaming\winsrvc\svchost.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:456
        • C:\Users\Admin\AppData\Roaming\winsrvc\svchost.exe
          svchost
          4⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:348
          • C:\Windows\SysWOW64\notepad.exe
            notepad
            5⤵
            • System Location Discovery: System Language Discovery
            PID:320

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\winsrvc\svchost.exe

    Filesize

    355KB

    MD5

    6dc2283fb55cd0fde0341da8d56942d0

    SHA1

    dafbdd680d3ff148c6d92b242f9ad6cdea8ad820

    SHA256

    d2d6bdbdd2588906af1326e15acc95e6c57da1fefcc6f47e7afbc6afe26c5f43

    SHA512

    33e789b0e46d93933067acedbd40d391bbae0024070177631ce0e671772d1d31fd5a39b57edd271eac736d71269a451650003e008fedd9b4c2f24209ef9a797f

  • memory/320-87-0x00000000006D0000-0x00000000006D1000-memory.dmp

    Filesize

    4KB

  • memory/348-94-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/348-97-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/348-105-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/348-89-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/348-88-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/348-103-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/348-102-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/348-101-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/348-100-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/348-99-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/348-98-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/348-96-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/348-82-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/348-83-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/348-95-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/348-81-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/348-86-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/348-85-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/348-93-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/348-104-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/348-90-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/348-92-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/348-91-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/456-84-0x0000000072500000-0x0000000072AB1000-memory.dmp

    Filesize

    5.7MB

  • memory/456-75-0x0000000072502000-0x0000000072503000-memory.dmp

    Filesize

    4KB

  • memory/456-76-0x0000000072500000-0x0000000072AB1000-memory.dmp

    Filesize

    5.7MB

  • memory/2588-2-0x00000000750B0000-0x0000000075661000-memory.dmp

    Filesize

    5.7MB

  • memory/2588-8-0x00000000750B0000-0x0000000075661000-memory.dmp

    Filesize

    5.7MB

  • memory/2588-0-0x00000000750B2000-0x00000000750B3000-memory.dmp

    Filesize

    4KB

  • memory/2588-1-0x00000000750B0000-0x0000000075661000-memory.dmp

    Filesize

    5.7MB

  • memory/3012-74-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/3012-3-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/3012-11-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/3012-7-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/3012-9-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/3012-10-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/3012-6-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB