Analysis

  • max time kernel
    153s
  • max time network
    156s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    11/10/2022, 03:44

General

  • Target
    297e13b4ebfa037f39a01efecd32328bb5886e409cc754d0b8a712dad1f6c426.exe
  • Size 381KB
  • Sample221011-ea1jpadcfr
  • SHA256 297e13b4ebfa037f39a01efecd32328bb5886e409cc754d0b8a712dad1f6c426
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • darkcomet

Botnet
  • CC

C2
  • 212.7.192.244:1337

Mutex
  • DC_MUTEX-8DTXF5E

Attributes
  • gencode

    lN8zNVYPTGKV

  • install

    false

  • offline_keylogger

    true

  • persistence

    false

Signatures

  • Darkcomet

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

  • Executes dropped EXE 3 IoCs
  • UPX packed file 17 IoCs

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

  • Loads dropped DLL 6 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\297e13b4ebfa037f39a01efecd32328bb5886e409cc754d0b8a712dad1f6c426.exe
    "C:\Users\Admin\AppData\Local\Temp\297e13b4ebfa037f39a01efecd32328bb5886e409cc754d0b8a712dad1f6c426.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1976
    • C:\Users\Admin\AppData\Local\Temp\297e13b4ebfa037f39a01efecd32328bb5886e409cc754d0b8a712dad1f6c426.exe
      "C:\Users\Admin\AppData\Local\Temp\297e13b4ebfa037f39a01efecd32328bb5886e409cc754d0b8a712dad1f6c426.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:576
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\RNBOW.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:812
        • C:\Windows\SysWOW64\reg.exe
          REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "TapNet" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\tapinterface\tap.exe" /f
          4⤵
          • Adds Run key to start application
          PID:2020
      • C:\Users\Admin\AppData\Roaming\tapinterface\tap.exe
        "C:\Users\Admin\AppData\Roaming\tapinterface\tap.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:920
        • C:\Users\Admin\AppData\Roaming\tapinterface\tap.exe
          "C:\Users\Admin\AppData\Roaming\tapinterface\tap.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:1168
        • C:\Windows\SysWOW64\svchost.exe
          "C:\Windows\system32\svchost.exe"
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:1520

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        297e13b4ebfa037f39a01efecd32328bb5886e409cc754d0b8a712dad1f6c426.exe

        • Path C:\Users\Admin\AppData\Local\Temp\297e13b4ebfa037f39a01efecd32328bb5886e409cc754d0b8a712dad1f6c426.exe
        • Size 381KB
        • SHA256 297e13b4ebfa037f39a01efecd32328bb5886e409cc754d0b8a712dad1f6c426
        • MD5 SHA1 SHA512 SSDEEP

        RNBOW.bat

        • Path C:\Users\Admin\AppData\Local\Temp\RNBOW.bat
        • Size 144B
        • SHA256 fc1c4d0d8ea5d27476e23c49b7dacd40cd9dac4763303ad838774984a2bdc81d
        • MD5 SHA1 SHA512

        tap.exe

        • Path C:\Users\Admin\AppData\Roaming\tapinterface\tap.exe
        • Size 381KB
        • SHA256 67f09ed3a7dec619a9ed55ce22fa4daaec96029d867418e1bed58c9e7d084489
        • MD5 SHA1 SHA512 SSDEEP

        tap.exe

        • Path C:\Users\Admin\AppData\Roaming\tapinterface\tap.exe
        • Size 381KB
        • SHA256 67f09ed3a7dec619a9ed55ce22fa4daaec96029d867418e1bed58c9e7d084489
        • MD5 SHA1 SHA512 SSDEEP

        tap.exe

        • Path C:\Users\Admin\AppData\Roaming\tapinterface\tap.exe
        • Size 381KB
        • SHA256 67f09ed3a7dec619a9ed55ce22fa4daaec96029d867418e1bed58c9e7d084489
        • MD5 SHA1 SHA512 SSDEEP

        297e13b4ebfa037f39a01efecd32328bb5886e409cc754d0b8a712dad1f6c426.exe

        • Path \Users\Admin\AppData\Local\Temp\297e13b4ebfa037f39a01efecd32328bb5886e409cc754d0b8a712dad1f6c426.exe
        • Size 381KB
        • SHA256 297e13b4ebfa037f39a01efecd32328bb5886e409cc754d0b8a712dad1f6c426
        • MD5 SHA1 SHA512 SSDEEP

        tap.exe

        • Path \Users\Admin\AppData\Roaming\tapinterface\tap.exe
        • Size 381KB
        • SHA256 67f09ed3a7dec619a9ed55ce22fa4daaec96029d867418e1bed58c9e7d084489
        • MD5 SHA1 SHA512 SSDEEP

        tap.exe

        • Path \Users\Admin\AppData\Roaming\tapinterface\tap.exe
        • Size 381KB
        • SHA256 67f09ed3a7dec619a9ed55ce22fa4daaec96029d867418e1bed58c9e7d084489
        • MD5 SHA1 SHA512 SSDEEP

        tap.exe

        • Path \Users\Admin\AppData\Roaming\tapinterface\tap.exe
        • Size 381KB
        • SHA256 67f09ed3a7dec619a9ed55ce22fa4daaec96029d867418e1bed58c9e7d084489
        • MD5 SHA1 SHA512 SSDEEP

        tap.exe

        • Path \Users\Admin\AppData\Roaming\tapinterface\tap.exe
        • Size 381KB
        • SHA256 67f09ed3a7dec619a9ed55ce22fa4daaec96029d867418e1bed58c9e7d084489
        • MD5 SHA1 SHA512 SSDEEP

        tap.exe

        • Path \Users\Admin\AppData\Roaming\tapinterface\tap.exe
        • Size 381KB
        • SHA256 67f09ed3a7dec619a9ed55ce22fa4daaec96029d867418e1bed58c9e7d084489
        • MD5 SHA1 SHA512 SSDEEP

        memory/576-68-0x0000000000400000-0x000000000040B000-memory.dmp

        memory/576-59-0x0000000000400000-0x000000000040B000-memory.dmp

        memory/576-72-0x00000000762B1000-0x00000000762B3000-memory.dmp

        memory/576-108-0x0000000000400000-0x000000000040B000-memory.dmp

        memory/576-71-0x0000000000400000-0x000000000040B000-memory.dmp

        memory/576-60-0x0000000000400000-0x000000000040B000-memory.dmp

        memory/576-67-0x0000000000400000-0x000000000040B000-memory.dmp

        memory/576-63-0x0000000000400000-0x000000000040B000-memory.dmp

        memory/576-62-0x0000000000400000-0x000000000040B000-memory.dmp

        memory/920-85-0x000000000058F000-0x00000000005CD000-memory.dmp

        memory/1168-103-0x0000000000400000-0x000000000040B000-memory.dmp

        memory/1168-114-0x0000000000400000-0x000000000040B000-memory.dmp

        memory/1520-104-0x0000000000400000-0x00000000004BB000-memory.dmp

        memory/1520-101-0x0000000000400000-0x00000000004BB000-memory.dmp

        memory/1520-100-0x0000000000400000-0x00000000004BB000-memory.dmp

        memory/1520-105-0x0000000000400000-0x00000000004BB000-memory.dmp

        memory/1520-107-0x0000000000400000-0x00000000004BB000-memory.dmp

        memory/1520-111-0x0000000000400000-0x00000000004BB000-memory.dmp

        memory/1520-112-0x0000000000400000-0x00000000004BB000-memory.dmp

        memory/1520-113-0x0000000000400000-0x00000000004BB000-memory.dmp

        memory/1520-115-0x0000000000400000-0x00000000004BB000-memory.dmp

        memory/1976-56-0x00000000008CF000-0x000000000090D000-memory.dmp