Analysis

  • max time kernel
    120s
  • max time network
    17s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-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.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 8 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • UPX packed file 6 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
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 40 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:1688
    • 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
      • Loads dropped DLL
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Enumerates system info in registry
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1100
      • C:\Users\Admin\AppData\Roaming\Windupdt\winupdate.exe
        "C:\Users\Admin\AppData\Roaming\Windupdt\winupdate.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2784
        • 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
          • Loads dropped DLL
          • 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:2676

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    1.0MB

    MD5

    abf0288d96a6ef61c896230b2fedd3c0

    SHA1

    8f3b0aa3cbb2e5ab7bbdf64cef7444a623de161f

    SHA256

    5e61953db8384267353670cf53fc6f38729b97446fcb08c8be68b73a98c1f14f

    SHA512

    94379a060a8df9ab6fc024015f283cc05e62aa4677a3714008e9cdfd2b19cf05fe37f7e4770ce36f7ecbd7dce31a207695feee0b748728f95e5137f6a8c32d3c

  • memory/1100-22-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/1100-3-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/1100-5-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1100-7-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/1100-8-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/1100-10-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/1100-11-0x00000000002D0000-0x00000000002D1000-memory.dmp

    Filesize

    4KB

  • memory/1100-12-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/1100-19-0x0000000004660000-0x0000000004772000-memory.dmp

    Filesize

    1.1MB

  • memory/1688-9-0x0000000000400000-0x0000000000512000-memory.dmp

    Filesize

    1.1MB

  • memory/1688-0-0x0000000000400000-0x0000000000512000-memory.dmp

    Filesize

    1.1MB

  • memory/2676-54-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2676-55-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2676-62-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2676-61-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2676-37-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2676-45-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2676-60-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2676-40-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2676-47-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2676-49-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2676-51-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2676-50-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2676-48-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2676-52-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2676-53-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2676-59-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2676-58-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2676-56-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2676-57-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2784-30-0x00000000009E0000-0x0000000000AF2000-memory.dmp

    Filesize

    1.1MB

  • memory/2784-25-0x0000000000400000-0x0000000000512000-memory.dmp

    Filesize

    1.1MB

  • memory/2784-46-0x0000000000400000-0x0000000000512000-memory.dmp

    Filesize

    1.1MB

  • memory/2784-36-0x00000000031D0000-0x00000000032E2000-memory.dmp

    Filesize

    1.1MB

  • memory/2784-28-0x00000000009E0000-0x0000000000AF2000-memory.dmp

    Filesize

    1.1MB