Overview

overview

10

Static

static

3

file.0x3fa...0f.exe

windows7-x64

10

file.0x3fa...0f.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    136s
  • max time network
    138s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-11-2024 00:13

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General

  • Target

    file.0x3fab4450.0x8532f420.ImageSectionObject.svchosts.exed40fae8da0c156fbab0f.exe

  • Size

    661KB

  • MD5

    3b56482d3695ab53ff888251a399a298

  • SHA1

    726167c6f628a2a5c91b9a6db49f7f6845a2e028

  • SHA256

    3d507d03c3552c5b4ebe1fd7244f0835331b40518ca3ee4c6b6416826fc83ad4

  • SHA512

    a55564954549d9aaaa74b194c8efa3ea2b19d87fdf75eb1e00d62aa92361663774cb859e10f744c9505677ae939d9a5d894d24923a891ba3774b8a68c9e95a53

  • SSDEEP

    6144:A9oQO8gPOJ9ro8xqX1us6VrpGVvJWScB6LTvXIcIDH45vRc75HzZ5FpgmxQvkNS8:A9HFJ9rJxqX1usonS+LBHARgwkNS5

Score
10/10
darkcometdiscoveryevasionpersistencerattrojan

Malware Config

Signatures

  • Darkcomet

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

    trojanratdarkcomet
  • Darkcomet family
    darkcomet
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
    persistence
  • Sets file to hidden 1 TTPs 2 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

    evasion
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 3 IoCs
    persistence
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

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

    discovery
  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.0x3fab4450.0x8532f420.ImageSectionObject.svchosts.exed40fae8da0c156fbab0f.exe
    "C:\Users\Admin\AppData\Local\Temp\file.0x3fab4450.0x8532f420.ImageSectionObject.svchosts.exed40fae8da0c156fbab0f.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4984
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\file.0x3fab4450.0x8532f420.ImageSectionObject.svchosts.exed40fae8da0c156fbab0f.exe" +s +h
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1364
      • C:\Windows\SysWOW64\attrib.exe
        attrib "C:\Users\Admin\AppData\Local\Temp\file.0x3fab4450.0x8532f420.ImageSectionObject.svchosts.exed40fae8da0c156fbab0f.exe" +s +h
        3⤵
        • Sets file to hidden
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:4596
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3340
      • C:\Windows\SysWOW64\attrib.exe
        attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
        3⤵
        • Sets file to hidden
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:1936
    • C:\Users\Admin\AppData\Local\Temp\MSDCSC\runddl32.exe
      "C:\Users\Admin\AppData\Local\Temp\MSDCSC\runddl32.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:2492
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2492 -s 840
        3⤵
        • Program crash
        PID:1896
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2492 -ip 2492
    1⤵
      PID:4132

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\MSDCSC\runddl32.exe
      Filesize

      661KB

      MD5

      3b56482d3695ab53ff888251a399a298

      SHA1

      726167c6f628a2a5c91b9a6db49f7f6845a2e028

      SHA256

      3d507d03c3552c5b4ebe1fd7244f0835331b40518ca3ee4c6b6416826fc83ad4

      SHA512

      a55564954549d9aaaa74b194c8efa3ea2b19d87fdf75eb1e00d62aa92361663774cb859e10f744c9505677ae939d9a5d894d24923a891ba3774b8a68c9e95a53

      Download Submit

    • memory/2492-62-0x0000000002170000-0x0000000002171000-memory.dmp

      Filesize

      4KB

      Download

    • memory/2492-64-0x0000000000400000-0x00000000004B2000-memory.dmp

      Filesize

      712KB

      Download

    • memory/2492-65-0x0000000002170000-0x0000000002171000-memory.dmp

      Filesize

      4KB

      Download

    • memory/2492-66-0x0000000000400000-0x00000000004B2000-memory.dmp

      Filesize

      712KB

      Download

    • memory/4984-0-0x00000000022B0000-0x00000000022B1000-memory.dmp

      Filesize

      4KB

      Download

    • memory/4984-63-0x0000000000400000-0x00000000004B2000-memory.dmp

      Filesize

      712KB

      Download