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Analysis

  • max time kernel
    120s
  • max time network
    120s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/01/2025, 01:28

General

  • Target

    5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe

  • Size

    1.0MB

  • MD5

    abf0288d96a6ef61c896230b2fedd3c0

  • SHA1

    8f3b0aa3cbb2e5ab7bbdf64cef7444a623de161f

  • SHA256

    5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14f

  • SHA512

    94379a060a8df9ab6fc024015f283cc05e62aa4677a3714008e9cdfd2b19cf05fe37f7e4770ce36f7ecbd7dce31a207695feee0b748728f95e5137f6a8c32d3c

  • SSDEEP

    24576:Rx7UJ81apKbDL+3DdVrBta0ShvVboU4TIn9ohOCMXE0QxbD/dlwc4Z99rpLMO38t:DV1apKbDL+3DdVrBta0ShvVboU4TIn9g

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\5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe
    "C:\Users\Admin\AppData\Local\Temp\5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1388
    • C:\Users\Admin\AppData\Local\Temp\5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.exe
      "C:\Users\Admin\AppData\Local\Temp\5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14fN.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:3468
      • 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:2272
        • 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:4056

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

    abf0288d96a6ef61c896230b2fedd3c0

    SHA1

    8f3b0aa3cbb2e5ab7bbdf64cef7444a623de161f

    SHA256

    5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14f

    SHA512

    94379a060a8df9ab6fc024015f283cc05e62aa4677a3714008e9cdfd2b19cf05fe37f7e4770ce36f7ecbd7dce31a207695feee0b748728f95e5137f6a8c32d3c

  • memory/1388-6-0x0000000000400000-0x0000000000512000-memory.dmp

    Filesize

    1.1MB

  • memory/1388-0-0x0000000000400000-0x0000000000512000-memory.dmp

    Filesize

    1.1MB

  • memory/2272-79-0x0000000000400000-0x0000000000512000-memory.dmp

    Filesize

    1.1MB

  • memory/3468-3-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/3468-4-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/3468-5-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/3468-7-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/3468-8-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/3468-9-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/3468-69-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/4056-83-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/4056-88-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/4056-81-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/4056-78-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/4056-84-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/4056-82-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/4056-85-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/4056-86-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/4056-87-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/4056-80-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/4056-89-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/4056-90-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/4056-91-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/4056-92-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/4056-93-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/4056-94-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/4056-95-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/4056-96-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/4056-97-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB