Analysis

  • max time kernel
    205s
  • max time network
    106s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    05/12/2022, 19:05

General

  • Target

    bf1180e70a481ef1f3f6d1e328a67cd6b3752d765aa9ca571334189b3fd94516.exe

  • Size

    3.1MB

  • MD5

    c3bfad0a2eb4f5bf78240aed5c372f8a

  • SHA1

    1cb2506bbf04b07c454b6064761bb4fc58571538

  • SHA256

    bf1180e70a481ef1f3f6d1e328a67cd6b3752d765aa9ca571334189b3fd94516

  • SHA512

    381787058b22d010a7de8b27404c18d193988fac532727b4a75ebff0738bfa62c69d4b2b74a647014efc2a00afa7d7afb88a7577c5be649331e402bfad0b689d

  • SSDEEP

    98304:9cEHGzo0TwhHZVYuHhp7RLv+ZVfMGMKPvJJ:9PmoPhHZVYS3WZVfXT

Malware Config

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 2 IoCs

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

  • Identifies Wine through registry keys 2 TTPs 2 IoCs

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

  • Adds Run key to start application 2 TTPs 3 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 2 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Drops file in System32 directory 3 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Checks processor information in registry 2 TTPs 8 IoCs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bf1180e70a481ef1f3f6d1e328a67cd6b3752d765aa9ca571334189b3fd94516.exe
    "C:\Users\Admin\AppData\Local\Temp\bf1180e70a481ef1f3f6d1e328a67cd6b3752d765aa9ca571334189b3fd94516.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks BIOS information in registry
    • Identifies Wine through registry keys
    • Adds Run key to start application
    • Checks whether UAC is enabled
    • Writes to the Master Boot Record (MBR)
    • Drops file in System32 directory
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2024
    • C:\Windows\SysWOW64\explorer.exe
      "C:\Windows\SysWOW64\explorer.exe"
      2⤵
      • Checks BIOS information in registry
      • Identifies Wine through registry keys
      • Adds Run key to start application
      • Writes to the Master Boot Record (MBR)
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Checks processor information in registry
      • Enumerates system info in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1416

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1416-63-0x0000000000400000-0x0000000000728000-memory.dmp

    Filesize

    3.2MB

  • memory/1416-64-0x0000000000400000-0x0000000000728000-memory.dmp

    Filesize

    3.2MB

  • memory/1416-72-0x0000000000401000-0x00000000004AF000-memory.dmp

    Filesize

    696KB

  • memory/1416-71-0x0000000000400000-0x0000000000728000-memory.dmp

    Filesize

    3.2MB

  • memory/1416-58-0x0000000000400000-0x0000000000728000-memory.dmp

    Filesize

    3.2MB

  • memory/1416-60-0x0000000000400000-0x0000000000728000-memory.dmp

    Filesize

    3.2MB

  • memory/1416-70-0x0000000000401000-0x00000000004AF000-memory.dmp

    Filesize

    696KB

  • memory/1416-69-0x0000000000400000-0x0000000000728000-memory.dmp

    Filesize

    3.2MB

  • memory/1416-65-0x0000000000400000-0x0000000000728000-memory.dmp

    Filesize

    3.2MB

  • memory/1416-68-0x0000000000400000-0x0000000000728000-memory.dmp

    Filesize

    3.2MB

  • memory/1416-67-0x0000000000400000-0x0000000000728000-memory.dmp

    Filesize

    3.2MB

  • memory/2024-54-0x0000000000400000-0x0000000000728000-memory.dmp

    Filesize

    3.2MB

  • memory/2024-55-0x00000000767F1000-0x00000000767F3000-memory.dmp

    Filesize

    8KB

  • memory/2024-62-0x0000000000400000-0x0000000000728000-memory.dmp

    Filesize

    3.2MB

  • memory/2024-57-0x0000000000400000-0x0000000000728000-memory.dmp

    Filesize

    3.2MB

  • memory/2024-56-0x0000000000400000-0x0000000000728000-memory.dmp

    Filesize

    3.2MB