Analysis

  • max time kernel
    150s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    20-06-2024 14:26

General

  • Target

    06cfe3577f5346a9ddcbf8ad52ea9683_JaffaCakes118.exe

  • Size

    333KB

  • MD5

    06cfe3577f5346a9ddcbf8ad52ea9683

  • SHA1

    2c303ac725fe2573839d20ac2b6802e4a0e67ca6

  • SHA256

    ebb8382d407d4209132f5a7578fb823e3aceb365e31f63d2782d490cfc90777b

  • SHA512

    023e5918ee363bce7f87d838018a6243c3be57512315f7359cb9838c3d01aea623bf56d0a0acdbe71dd9a587f4035d61f631fdef37fd2988c58e8d1171af2353

  • SSDEEP

    6144:M2LEjyH8jI2GaegV8Xx70IBB7MdNa/whottJrVUGhBKdgMydR6:MPWcj11egV8Xt0yMm/wKJrVU4Kd/QR6

Malware Config

Extracted

Family

darkcomet

Botnet

Z0mbY

C2

skekrlld66.zapto.org:1604

Mutex

DC_MUTEX-B3U22NR

Attributes
  • InstallPath

    Microsoft\jusched.exe

  • gencode

    fFyWeV9CgCDw

  • install

    true

  • offline_keylogger

    true

  • password

    pankad12

  • persistence

    true

  • reg_key

    jusched

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.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • UPX packed file 20 IoCs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\06cfe3577f5346a9ddcbf8ad52ea9683_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\06cfe3577f5346a9ddcbf8ad52ea9683_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2548
    • C:\Users\Admin\AppData\Local\Temp\06cfe3577f5346a9ddcbf8ad52ea9683_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\06cfe3577f5346a9ddcbf8ad52ea9683_JaffaCakes118.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1252
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\06cfe3577f5346a9ddcbf8ad52ea9683_JaffaCakes118.exe" +s +h
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1804
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp\06cfe3577f5346a9ddcbf8ad52ea9683_JaffaCakes118.exe" +s +h
          4⤵
          • Sets file to hidden
          • Views/modifies file attributes
          PID:1720
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2200
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
          4⤵
          • Sets file to hidden
          • Views/modifies file attributes
          PID:2500
      • C:\Windows\SysWOW64\notepad.exe
        notepad
        3⤵
        • Deletes itself
        PID:2672
      • C:\Users\Admin\AppData\Roaming\Microsoft\jusched.exe
        "C:\Users\Admin\AppData\Roaming\Microsoft\jusched.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2460
        • C:\Users\Admin\AppData\Roaming\Microsoft\jusched.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\jusched.exe"
          4⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:2924
          • C:\Windows\SysWOW64\notepad.exe
            notepad
            5⤵
              PID:2700

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Persistence

    Boot or Logon Autostart Execution

    2
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Winlogon Helper DLL

    1
    T1547.004

    Privilege Escalation

    Boot or Logon Autostart Execution

    2
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Winlogon Helper DLL

    1
    T1547.004

    Defense Evasion

    Modify Registry

    2
    T1112

    Hide Artifacts

    2
    T1564

    Hidden Files and Directories

    2
    T1564.001

    Discovery

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • \Users\Admin\AppData\Roaming\Microsoft\jusched.exe
      Filesize

      333KB

      MD5

      06cfe3577f5346a9ddcbf8ad52ea9683

      SHA1

      2c303ac725fe2573839d20ac2b6802e4a0e67ca6

      SHA256

      ebb8382d407d4209132f5a7578fb823e3aceb365e31f63d2782d490cfc90777b

      SHA512

      023e5918ee363bce7f87d838018a6243c3be57512315f7359cb9838c3d01aea623bf56d0a0acdbe71dd9a587f4035d61f631fdef37fd2988c58e8d1171af2353

    • memory/1252-9-0x0000000000400000-0x00000000004BA000-memory.dmp
      Filesize

      744KB

    • memory/1252-5-0x0000000000400000-0x00000000004BA000-memory.dmp
      Filesize

      744KB

    • memory/1252-113-0x00000000044A0000-0x000000000451B000-memory.dmp
      Filesize

      492KB

    • memory/1252-7-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
      Filesize

      4KB

    • memory/1252-3-0x0000000000400000-0x00000000004BA000-memory.dmp
      Filesize

      744KB

    • memory/1252-13-0x0000000000400000-0x00000000004BA000-memory.dmp
      Filesize

      744KB

    • memory/1252-47-0x0000000000400000-0x00000000004BA000-memory.dmp
      Filesize

      744KB

    • memory/1252-16-0x0000000000400000-0x00000000004BA000-memory.dmp
      Filesize

      744KB

    • memory/1252-15-0x0000000000400000-0x00000000004BA000-memory.dmp
      Filesize

      744KB

    • memory/1252-17-0x0000000000270000-0x0000000000271000-memory.dmp
      Filesize

      4KB

    • memory/1252-14-0x0000000000400000-0x00000000004BA000-memory.dmp
      Filesize

      744KB

    • memory/1252-48-0x00000000044A0000-0x000000000451B000-memory.dmp
      Filesize

      492KB

    • memory/1252-6-0x0000000000400000-0x00000000004BA000-memory.dmp
      Filesize

      744KB

    • memory/1252-10-0x0000000000400000-0x00000000004BA000-memory.dmp
      Filesize

      744KB

    • memory/2460-51-0x0000000000400000-0x000000000047B000-memory.dmp
      Filesize

      492KB

    • memory/2460-64-0x0000000000400000-0x000000000047B000-memory.dmp
      Filesize

      492KB

    • memory/2548-12-0x0000000000400000-0x000000000047B000-memory.dmp
      Filesize

      492KB

    • memory/2548-0-0x0000000000400000-0x000000000047B000-memory.dmp
      Filesize

      492KB

    • memory/2672-36-0x0000000000190000-0x0000000000191000-memory.dmp
      Filesize

      4KB

    • memory/2672-21-0x0000000000080000-0x0000000000081000-memory.dmp
      Filesize

      4KB

    • memory/2924-66-0x0000000000400000-0x00000000004BA000-memory.dmp
      Filesize

      744KB

    • memory/2924-69-0x0000000000400000-0x00000000004BA000-memory.dmp
      Filesize

      744KB

    • memory/2924-68-0x0000000000400000-0x00000000004BA000-memory.dmp
      Filesize

      744KB

    • memory/2924-67-0x0000000000400000-0x00000000004BA000-memory.dmp
      Filesize

      744KB

    • memory/2924-114-0x0000000000400000-0x00000000004BA000-memory.dmp
      Filesize

      744KB