Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-01-2025 17:08

General

  • Target

    f986ccfea9ea474c52ecbb9c72e968b9f9aa7868846f87d2b681f7b717576f96.exe

  • Size

    1.0MB

  • MD5

    9a5bf98f8b7e161f7e211086a3c49ba1

  • SHA1

    813526050d2550c2e318cf8e915932ddde6a223e

  • SHA256

    f986ccfea9ea474c52ecbb9c72e968b9f9aa7868846f87d2b681f7b717576f96

  • SHA512

    a05511332c90923690a12caa5e801a85e4f420e591b38581f4f9a25530651e69ccbcd35fe39ad0e9230309dae37e37fec1ab61faede28fa95a60b9399ed5a848

  • SSDEEP

    24576:Rx7UJ81apKbDL+3DdVrBta0ShvVboU4TIn9ohOCMXE0QxbD/dlwc4Z99rpLMO38t:DV1apKbDL+3DdVrBta0ShvVboU4TIn9A

Malware Config

Signatures

  • Darkcomet

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

  • Darkcomet family
  • 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.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • UPX packed file 4 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

  • 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
  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 31 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f986ccfea9ea474c52ecbb9c72e968b9f9aa7868846f87d2b681f7b717576f96.exe
    "C:\Users\Admin\AppData\Local\Temp\f986ccfea9ea474c52ecbb9c72e968b9f9aa7868846f87d2b681f7b717576f96.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1656
    • C:\Users\Admin\AppData\Local\Temp\f986ccfea9ea474c52ecbb9c72e968b9f9aa7868846f87d2b681f7b717576f96.exe
      "C:\Users\Admin\AppData\Local\Temp\f986ccfea9ea474c52ecbb9c72e968b9f9aa7868846f87d2b681f7b717576f96.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Checks BIOS information in registry
      • Checks computer location settings
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Enumerates system info in registry
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2424
      • C:\Users\Admin\AppData\Roaming\Windupdt\winupdate.exe
        "C:\Users\Admin\AppData\Roaming\Windupdt\winupdate.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4356
        • C:\Users\Admin\AppData\Roaming\Windupdt\winupdate.exe
          "C:\Users\Admin\AppData\Roaming\Windupdt\winupdate.exe"
          4⤵
          • Checks BIOS information in registry
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Checks processor information in registry
          • Enumerates system info in registry
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:3068

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Windupdt\winupdate.exe

    Filesize

    1.0MB

    MD5

    9a5bf98f8b7e161f7e211086a3c49ba1

    SHA1

    813526050d2550c2e318cf8e915932ddde6a223e

    SHA256

    f986ccfea9ea474c52ecbb9c72e968b9f9aa7868846f87d2b681f7b717576f96

    SHA512

    a05511332c90923690a12caa5e801a85e4f420e591b38581f4f9a25530651e69ccbcd35fe39ad0e9230309dae37e37fec1ab61faede28fa95a60b9399ed5a848

  • memory/1656-0-0x0000000000400000-0x0000000000512000-memory.dmp

    Filesize

    1.1MB

  • memory/1656-6-0x0000000000400000-0x0000000000512000-memory.dmp

    Filesize

    1.1MB

  • memory/2424-3-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2424-4-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2424-5-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2424-7-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2424-9-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2424-8-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2424-70-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/3068-85-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/3068-89-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/3068-80-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/3068-81-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/3068-83-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/3068-84-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/3068-79-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/3068-82-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/3068-86-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/3068-87-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/3068-88-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/3068-100-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/3068-90-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/3068-91-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/3068-92-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/3068-93-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/3068-94-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/3068-95-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/3068-96-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/3068-97-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/3068-98-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/3068-99-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/4356-78-0x0000000000400000-0x0000000000512000-memory.dmp

    Filesize

    1.1MB