Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    28-06-2024 09:15

General

  • Target

    19962480e1ea3d8a3c00250e8e7867e7_JaffaCakes118.exe

  • Size

    5.9MB

  • MD5

    19962480e1ea3d8a3c00250e8e7867e7

  • SHA1

    d0240accf1b93436deb4d681bdbf1882420c1ff2

  • SHA256

    c08fbf1f549669dd048f5008b7f5f3150d1fb0dc7f6a420b369eb7469dfbc3e2

  • SHA512

    ae7f73c7e600a1b4d27b871af2962cfffcbe7f8fdae87f0344c8396c7326bd06a2ea89273d8ac03974c2ed0eb96bdcb28d4759132d43fdb81bbd286530364267

  • SSDEEP

    98304:cLILI6zcwPD3WCvdmVoyfgqo8BRqSTOUhNJsiTN1G1ja+ps5mIWWx:cLz6wwb3WdHIqo8BhSUhN/RCj7i5mvK

Malware Config

Extracted

Family

darkcomet

Botnet

Test1

C2

fttpsrvr.serveftp.com:81

Mutex

DC_MUTEX-KC4MATP

Attributes
  • gencode

    bwdrBTvAAiq3

  • install

    false

  • offline_keylogger

    true

  • password

    0137982645

  • persistence

    false

Signatures

  • Darkcomet

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

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Identifies Wine through registry keys 2 TTPs 1 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Loads dropped DLL 4 IoCs
  • Themida packer 16 IoCs

    Detects Themida, an advanced Windows software protection system.

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

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

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 5 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 58 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\19962480e1ea3d8a3c00250e8e7867e7_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\19962480e1ea3d8a3c00250e8e7867e7_JaffaCakes118.exe"
    1⤵
    • Checks BIOS information in registry
    • Identifies Wine through registry keys
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2412
    • C:\Users\Admin\AppData\Local\Temp\THE SERVER.SCR
      "C:\Users\Admin\AppData\Local\Temp\THE SERVER.SCR" /S
      2⤵
      • Modifies WinLogon for persistence
      • Executes dropped EXE
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2748
      • C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Windows\svchost.com
        "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Windows\svchost.com"
        3⤵
        • 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:2832
        • C:\Windows\SysWOW64\notepad.exe
          notepad
          4⤵
            PID:2532
      • C:\Program Files\VideoLAN\VLC\vlc.exe
        "C:\Program Files\VideoLAN\VLC\vlc.exe" --started-from-file "C:\Users\Admin\AppData\Local\Temp\TWILIGHT_MOVIE_SOUND_TRACK.MP3"
        2⤵
        • Suspicious behavior: AddClipboardFormatListener
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of SetWindowsHookEx
        PID:2772
      • C:\Windows\SysWOW64\notepad.exe
        notepad
        2⤵
          PID:1280

      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

      Virtualization/Sandbox Evasion

      1
      T1497

      Discovery

      Query Registry

      2
      T1012

      System Information Discovery

      2
      T1082

      Virtualization/Sandbox Evasion

      1
      T1497

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\THE SERVER.SCR
        Filesize

        661KB

        MD5

        6ab345c7ac302d1c52dc70f6d8a5d9fb

        SHA1

        3c99ea4a7f270c7001fa90f84ce3292b18e1b945

        SHA256

        1d1f68ec9078e388708f845467463afb1da88b313e72fe80154e1c2832f94283

        SHA512

        c3194442bf5bff21828533d096c602923922f4d6e778cff838aa89500ca1cdd74cd79a9bcdb56b4ab37c51f2e82d86f063f8d5ac4f7d195ea90d76aae8c0a2d3

      • C:\Users\Admin\AppData\Local\Temp\TWILIGHT_MOVIE_SOUND_TRACK.MP3
        Filesize

        3.9MB

        MD5

        a8068500eceff27539780e6f96fa963f

        SHA1

        71640dcad4347b529a45605c69720a46e8e41a6b

        SHA256

        45d12a1995f2b1476f1d2e84a93de0de6b8b71e70a0f8c22d4862d93b284006b

        SHA512

        adf1b9225504cbc845f4e68640de5788a77ef8624373908f8a374bdd76e3d281751c546cb0092ec52ffab50b3831a1df8227a5b21e64c64728d446d2651e7667

      • memory/2412-113-0x0000000000400000-0x0000000000A4D000-memory.dmp
        Filesize

        6.3MB

      • memory/2412-0-0x0000000000400000-0x0000000000A4D000-memory.dmp
        Filesize

        6.3MB

      • memory/2412-7-0x0000000000400000-0x0000000000A4D000-memory.dmp
        Filesize

        6.3MB

      • memory/2412-6-0x0000000000400000-0x0000000000A4D000-memory.dmp
        Filesize

        6.3MB

      • memory/2412-4-0x0000000000400000-0x0000000000A4D000-memory.dmp
        Filesize

        6.3MB

      • memory/2412-2-0x0000000000400000-0x0000000000A4D000-memory.dmp
        Filesize

        6.3MB

      • memory/2412-17-0x0000000000400000-0x0000000000A4D000-memory.dmp
        Filesize

        6.3MB

      • memory/2412-22-0x0000000000400000-0x0000000000A4D000-memory.dmp
        Filesize

        6.3MB

      • memory/2412-125-0x0000000000400000-0x0000000000A4D000-memory.dmp
        Filesize

        6.3MB

      • memory/2412-124-0x0000000000400000-0x0000000000A4D000-memory.dmp
        Filesize

        6.3MB

      • memory/2412-123-0x0000000000400000-0x0000000000A4D000-memory.dmp
        Filesize

        6.3MB

      • memory/2412-1-0x0000000000401000-0x0000000000450000-memory.dmp
        Filesize

        316KB

      • memory/2412-112-0x0000000000400000-0x0000000000A4D000-memory.dmp
        Filesize

        6.3MB

      • memory/2412-3-0x0000000000400000-0x0000000000A4D000-memory.dmp
        Filesize

        6.3MB

      • memory/2412-120-0x0000000000400000-0x0000000000A4D000-memory.dmp
        Filesize

        6.3MB

      • memory/2412-121-0x0000000000400000-0x0000000000A4D000-memory.dmp
        Filesize

        6.3MB

      • memory/2412-122-0x0000000000400000-0x0000000000A4D000-memory.dmp
        Filesize

        6.3MB

      • memory/2532-32-0x0000000000080000-0x0000000000081000-memory.dmp
        Filesize

        4KB

      • memory/2532-70-0x00000000001E0000-0x00000000001E1000-memory.dmp
        Filesize

        4KB

      • memory/2748-30-0x0000000000400000-0x00000000004B2000-memory.dmp
        Filesize

        712KB