Analysis

  • max time kernel
    120s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    01-01-2025 17:06

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.

  • 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 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
  • 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\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:2424
    • 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
      • 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:2924
      • 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:400
        • 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:2624

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    1.0MB

    MD5

    9a5bf98f8b7e161f7e211086a3c49ba1

    SHA1

    813526050d2550c2e318cf8e915932ddde6a223e

    SHA256

    f986ccfea9ea474c52ecbb9c72e968b9f9aa7868846f87d2b681f7b717576f96

    SHA512

    a05511332c90923690a12caa5e801a85e4f420e591b38581f4f9a25530651e69ccbcd35fe39ad0e9230309dae37e37fec1ab61faede28fa95a60b9399ed5a848

  • memory/400-44-0x0000000000400000-0x0000000000512000-memory.dmp

    Filesize

    1.1MB

  • memory/400-29-0x0000000000AF0000-0x0000000000C02000-memory.dmp

    Filesize

    1.1MB

  • memory/400-30-0x0000000000AF0000-0x0000000000C02000-memory.dmp

    Filesize

    1.1MB

  • memory/2424-0-0x0000000000400000-0x0000000000512000-memory.dmp

    Filesize

    1.1MB

  • memory/2424-9-0x0000000000400000-0x0000000000512000-memory.dmp

    Filesize

    1.1MB

  • memory/2624-51-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2624-47-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2624-59-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2624-58-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2624-57-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2624-56-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2624-55-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2624-34-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2624-37-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2624-43-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2624-54-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2624-42-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2624-48-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2624-53-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2624-46-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2624-45-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2624-49-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2624-50-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2624-52-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2924-3-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2924-11-0x0000000000270000-0x0000000000271000-memory.dmp

    Filesize

    4KB

  • memory/2924-5-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2924-21-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2924-7-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2924-8-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2924-12-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2924-10-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB