Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-06-2024 01:33

General

  • Target

    1435c8d7a0157784e181d48ea5aa24b3_JaffaCakes118.exe

  • Size

    421KB

  • MD5

    1435c8d7a0157784e181d48ea5aa24b3

  • SHA1

    dfa8c21ef3373153160a29324073fb9e875dc1fe

  • SHA256

    d4f6824fcfac08808c07fdc5127abcb1df78cb6ba4fb4689a56413b24ace19d5

  • SHA512

    b92579de58cee65f63066c2891c6aa38151d55f81973a3fff8701f0e94aae8fd14fa0fe652c0de48b1040ba2fc46a0999db6f2a1eede803db63f90f6df482b3e

  • SSDEEP

    12288:HVr5qkjoiEzoU4qjGiybs1df5WNm3C/OpRh+6cn:1ckUpUU4q3gs1dfAmoOfh+6cn

Malware Config

Extracted

Family

darkcomet

Botnet

ãÓßíä

C2

aniss1.no-ip.biz:81

Mutex

DC_MUTEX-SCE46ML

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    CQl4sBMa8TLp

  • install

    true

  • offline_keylogger

    true

  • password

    123

  • 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
  • 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 computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Windows security modification 2 TTPs 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 31 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1435c8d7a0157784e181d48ea5aa24b3_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\1435c8d7a0157784e181d48ea5aa24b3_JaffaCakes118.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks computer location settings
    • Adds Run key to start application
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3472
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3712
      • C:\Windows\SysWOW64\attrib.exe
        attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
        3⤵
        • Sets file to hidden
        • Views/modifies file attributes
        PID:4704
    • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
      "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
      2⤵
      • Modifies security service
      • Windows security bypass
      • Disables RegEdit via registry modification
      • Executes dropped EXE
      • Windows security modification
      • Adds Run key to start application
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1664
      • C:\Windows\SysWOW64\notepad.exe
        notepad
        3⤵
          PID:4656
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 4656 -s 416
            4⤵
            • Program crash
            PID:3444
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 4656 -ip 4656
      1⤵
        PID:1556

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe

        Filesize

        421KB

        MD5

        1435c8d7a0157784e181d48ea5aa24b3

        SHA1

        dfa8c21ef3373153160a29324073fb9e875dc1fe

        SHA256

        d4f6824fcfac08808c07fdc5127abcb1df78cb6ba4fb4689a56413b24ace19d5

        SHA512

        b92579de58cee65f63066c2891c6aa38151d55f81973a3fff8701f0e94aae8fd14fa0fe652c0de48b1040ba2fc46a0999db6f2a1eede803db63f90f6df482b3e

      • memory/1664-77-0x0000000000400000-0x00000000004D4150-memory.dmp

        Filesize

        848KB

      • memory/1664-79-0x0000000000400000-0x00000000004D4150-memory.dmp

        Filesize

        848KB

      • memory/1664-73-0x0000000000400000-0x00000000004D4150-memory.dmp

        Filesize

        848KB

      • memory/1664-75-0x0000000000400000-0x00000000004D4150-memory.dmp

        Filesize

        848KB

      • memory/1664-74-0x0000000000400000-0x00000000004D4150-memory.dmp

        Filesize

        848KB

      • memory/1664-83-0x0000000000400000-0x00000000004D4150-memory.dmp

        Filesize

        848KB

      • memory/1664-69-0x0000000000400000-0x00000000004D4150-memory.dmp

        Filesize

        848KB

      • memory/1664-70-0x0000000000400000-0x00000000004D4150-memory.dmp

        Filesize

        848KB

      • memory/1664-71-0x0000000000400000-0x00000000004D4150-memory.dmp

        Filesize

        848KB

      • memory/1664-72-0x0000000000400000-0x00000000004D4150-memory.dmp

        Filesize

        848KB

      • memory/1664-63-0x0000000000400000-0x00000000004D4150-memory.dmp

        Filesize

        848KB

      • memory/1664-82-0x0000000000400000-0x00000000004D4150-memory.dmp

        Filesize

        848KB

      • memory/1664-64-0x00000000023F0000-0x00000000023F1000-memory.dmp

        Filesize

        4KB

      • memory/1664-76-0x0000000000400000-0x00000000004D4150-memory.dmp

        Filesize

        848KB

      • memory/1664-81-0x0000000000400000-0x00000000004D4150-memory.dmp

        Filesize

        848KB

      • memory/1664-78-0x0000000000400000-0x00000000004D4150-memory.dmp

        Filesize

        848KB

      • memory/1664-80-0x0000000000400000-0x00000000004D4150-memory.dmp

        Filesize

        848KB

      • memory/3472-1-0x0000000002500000-0x0000000002501000-memory.dmp

        Filesize

        4KB

      • memory/3472-0-0x0000000000400000-0x00000000004D4150-memory.dmp

        Filesize

        848KB

      • memory/3472-68-0x0000000000400000-0x00000000004D4150-memory.dmp

        Filesize

        848KB

      • memory/4656-65-0x0000000000AA0000-0x0000000000AA1000-memory.dmp

        Filesize

        4KB