Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/08/2024, 02:12

General

  • Target
    ad80fab1b61eedd00adda7872a1b81f8_JaffaCakes118.exe
  • Size 3.0MB
  • Sample240820-cm1dcasepn
  • SHA256 a7e8eccf72d7f433cbe460d7b986b9044cbe4152a37717464c22cc5627997a43
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • darkcomet

Botnet
  • Guest16

C2
  • medoseleman.zapto.org:1604

Mutex
  • DC_MUTEX-YJYEBPK

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    tQiKsS04Yhz9

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Extracted

Family
  • latentbot

C2
  • medoseleman.zapto.org

Signatures

  • Darkcomet

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

  • LatentBot

    Modular trojan written in Delphi which has been in-the-wild since 2013.

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Checks computer location settings 2 TTPs 3 IoCs

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

  • Drops startup file 1 IoCs
  • Executes dropped EXE 9 IoCs
  • UPX packed file 5 IoCs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 47 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 11 IoCs

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

  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 52 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ad80fab1b61eedd00adda7872a1b81f8_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\ad80fab1b61eedd00adda7872a1b81f8_JaffaCakes118.exe"
    1⤵
    • Drops startup file
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4160
    • C:\Users\Admin\AppData\Local\Temp\D.exe
      C:\Users\Admin\AppData\Local\Temp/D.exe
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4664
      • C:\Users\Admin\AppData\Local\Temp\ss.exe
        "C:\Users\Admin\AppData\Local\Temp\ss.exe"
        3⤵
        • Modifies WinLogon for persistence
        • Drops file in Drivers directory
        • Checks computer location settings
        • Executes dropped EXE
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:628
        • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
          "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
          4⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:4884
    • C:\Users\Admin\AppData\Local\Temp\nLite-v1.3b-_Requires-.NET-Framework-v2.0_.exe
      C:\Users\Admin\AppData\Local\Temp/nLite-v1.3b-_Requires-.NET-Framework-v2.0_.exe
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2992
      • C:\Users\Admin\AppData\Local\Temp\RarSFX0\install.exe
        "C:\Users\Admin\AppData\Local\Temp\RarSFX0\install.exe" /nLite-v1.3b-_Requires-.NET-Framework-v2.0_.exe
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3484
        • C:\Windows\SysWOW64\cmd.exe
          cmd.exe /c C:\Users\Admin\AppData\Local\Temp\bt4206.bat /nLite-v1.3b-_Requires-.NET-Framework-v2.0_.exe
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:3808
          • C:\Windows\SysWOW64\xcopy.exe
            XCOPY "pskill.exe" "C:\Windows\system32" /y /i /s /e /r /v /k /f /c /h
            5⤵
            • Drops file in System32 directory
            • System Location Discovery: System Language Discovery
            • Enumerates system info in registry
            PID:3704
          • C:\Users\Admin\AppData\Local\Temp\RarSFX0\incase.exe
            incase.exe
            5⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious use of FindShellTrayWindow
            • Suspicious use of SendNotifyMessage
            PID:2604
          • C:\Users\Admin\AppData\Local\Temp\RarSFX0\nLite-1.3.beta.installer.exe
            nLite-1.3.beta.installer.exe /sp- /verysilent
            5⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:1692
            • C:\Users\Admin\AppData\Local\Temp\is-R3EMF.tmp\is-H6BNJ.tmp
              "C:\Users\Admin\AppData\Local\Temp\is-R3EMF.tmp\is-H6BNJ.tmp" /SL4 $80054 "C:\Users\Admin\AppData\Local\Temp\RarSFX0\nLite-1.3.beta.installer.exe" 1701773 52224 /sp- /verysilent
              6⤵
              • Executes dropped EXE
              • Drops file in Program Files directory
              • System Location Discovery: System Language Discovery
              PID:3328
          • C:\Users\Admin\AppData\Local\Temp\RarSFX0\pskill.exe
            pskill incase.exe
            5⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:3156

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        D.exe

        • Path C:\Users\Admin\AppData\Local\Temp\D.exe
        • Size 384KB
        • SHA256 0886acb74275903edf6453e70bcb3cf145cf071457f62496ea5729ebc045e466
        • MD5 SHA1 SHA512 SSDEEP

        incase.exe

        • Path C:\Users\Admin\AppData\Local\Temp\RarSFX0\incase.exe
        • Size 41KB
        • SHA256 9e9dc28ec773f20483a98ad33743bbc526a73d1a1feaaa5c67a3fc0329d213a8
        • MD5 SHA1 SHA512 SSDEEP

        install.exe

        • Path C:\Users\Admin\AppData\Local\Temp\RarSFX0\install.exe
        • Size 146KB
        • SHA256 2cf6874dda9e838bcfe0188788147186fe8ec6dcf18b53888d005e99d5dcdd11
        • MD5 SHA1 SHA512 SSDEEP

        nLite-1.3.beta.installer.exe

        • Path C:\Users\Admin\AppData\Local\Temp\RarSFX0\nLite-1.3.beta.installer.exe
        • Size 1.8MB
        • SHA256 9f4b52f1ef1a752a208d935624bfde700a716cd3ac80729122aee576c45e919c
        • MD5 SHA1 SHA512 SSDEEP

        pskill.exe

        • Path C:\Users\Admin\AppData\Local\Temp\RarSFX0\pskill.exe
        • Size 92KB
        • SHA256 7ac2375c6569ad1f8e25ee7fc4a4ebcb0425bbd5ab19c2844f1580a8e0fcab76
        • MD5 SHA1 SHA512 SSDEEP

        aut8B88.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\aut8B88.tmp
        • Size 82KB
        • SHA256 d9a44df55f7be30fe3f06333e5bcba6aec4461eab3712e6b152f787b77949822
        • MD5 SHA1 SHA512 SSDEEP

        bt4206.bat

        • Path C:\Users\Admin\AppData\Local\Temp\bt4206.bat
        • Size 172B
        • SHA256 bcef3b40ce623a6de3a565156a47fbd43c4e650c4397b1c50cf02fc2622a49e6
        • MD5 SHA1 SHA512

        is-H6BNJ.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\is-R3EMF.tmp\is-H6BNJ.tmp
        • Size 652KB
        • SHA256 385a9bb48f5180984867f3bff1d327250d22ab4399137b343be291c370ee3699
        • MD5 SHA1 SHA512 SSDEEP

        nLite-v1.3b-_Requires-.NET-Framework-v2.0_.exe

        • Path C:\Users\Admin\AppData\Local\Temp\nLite-v1.3b-_Requires-.NET-Framework-v2.0_.exe
        • Size 2.4MB
        • SHA256 c5c338125a680b78ba49cb3a58e3d6ab3b53b5ffaaaa2f0192b529a9c950b3eb
        • MD5 SHA1 SHA512 SSDEEP

        ss.exe

        • Path C:\Users\Admin\AppData\Local\Temp\ss.exe
        • Size 236KB
        • SHA256 38feffcabedffd4f81341730f0a6df18e44955ae145915fc2bb9c58b5f345fe5
        • MD5 SHA1 SHA512 SSDEEP

        memory/628-208-0x0000000000400000-0x00000000004B8000-memory.dmp

        memory/628-79-0x0000000000400000-0x00000000004B8000-memory.dmp

        memory/1692-64-0x0000000000400000-0x0000000000413000-memory.dmp

        memory/1692-202-0x0000000000400000-0x0000000000413000-memory.dmp

        memory/2604-59-0x0000000000400000-0x000000000044B000-memory.dmp

        memory/2604-204-0x0000000000400000-0x000000000044B000-memory.dmp

        memory/2992-206-0x0000000000400000-0x0000000000446000-memory.dmp

        memory/3328-201-0x0000000000400000-0x00000000004B2000-memory.dmp

        memory/3484-205-0x0000000000400000-0x000000000042C000-memory.dmp

        memory/4160-28-0x0000000000400000-0x00000000004B8000-memory.dmp

        memory/4160-0-0x0000000000400000-0x00000000004B8000-memory.dmp

        memory/4664-82-0x00007FFFAC710000-0x00007FFFAD0B1000-memory.dmp

        memory/4664-40-0x000000001C160000-0x000000001C62E000-memory.dmp

        memory/4664-39-0x00007FFFAC710000-0x00007FFFAD0B1000-memory.dmp

        memory/4664-30-0x000000001BBE0000-0x000000001BC86000-memory.dmp

        memory/4664-29-0x00007FFFAC710000-0x00007FFFAD0B1000-memory.dmp

        memory/4664-26-0x00007FFFAC9C5000-0x00007FFFAC9C6000-memory.dmp

        memory/4884-209-0x0000000000400000-0x00000000004B8000-memory.dmp

        memory/4884-210-0x0000000000400000-0x00000000004B8000-memory.dmp

        memory/4884-211-0x0000000000400000-0x00000000004B8000-memory.dmp

        memory/4884-212-0x0000000000400000-0x00000000004B8000-memory.dmp

        memory/4884-213-0x0000000000400000-0x00000000004B8000-memory.dmp

        memory/4884-214-0x0000000000400000-0x00000000004B8000-memory.dmp

        memory/4884-215-0x0000000000400000-0x00000000004B8000-memory.dmp

        memory/4884-216-0x0000000000400000-0x00000000004B8000-memory.dmp

        memory/4884-217-0x0000000000400000-0x00000000004B8000-memory.dmp

        memory/4884-218-0x0000000000400000-0x00000000004B8000-memory.dmp

        memory/4884-219-0x0000000000400000-0x00000000004B8000-memory.dmp

        memory/4884-220-0x0000000000400000-0x00000000004B8000-memory.dmp

        memory/4884-221-0x0000000000400000-0x00000000004B8000-memory.dmp

        memory/4884-222-0x0000000000400000-0x00000000004B8000-memory.dmp

        memory/4884-223-0x0000000000400000-0x00000000004B8000-memory.dmp