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
    11/10/2024, 09:27

General

  • Target

    aea5d3574ce30782d8079cb72ba9d7c7d63e3ef0c7d9f9356297b27b923143d5N.exe

  • Size

    986KB

  • MD5

    22a2278fc97db1a510ef9a2fbf5d7e90

  • SHA1

    6c180bb95fb3bd856bd941ec6e9096058ba5536b

  • SHA256

    aea5d3574ce30782d8079cb72ba9d7c7d63e3ef0c7d9f9356297b27b923143d5

  • SHA512

    9810975b5816c8fdb6e218efc09f92b06e795d01cb33fb323b414441b3235eb3c4a174eea514490c5aeb7f6ba10eb238631caf81f7bad3e98b4fd89a92929c58

  • SSDEEP

    24576:CAEENIq8XwyVPQclDq/+WnpITZ4ATlZfHeuAEx3qs:CAEsw722WnI3PeuAWt

Malware Config

Signatures

  • Darkcomet

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

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Modifies firewall policy service 3 TTPs 3 IoCs
  • Modifies security service 2 TTPs 1 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Disables Task Manager via registry modification
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in Windows directory 3 IoCs
  • 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.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • 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
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\aea5d3574ce30782d8079cb72ba9d7c7d63e3ef0c7d9f9356297b27b923143d5N.exe
    "C:\Users\Admin\AppData\Local\Temp\aea5d3574ce30782d8079cb72ba9d7c7d63e3ef0c7d9f9356297b27b923143d5N.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks BIOS information in registry
    • Loads dropped DLL
    • Adds Run key to start application
    • Drops file in Windows directory
    • 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:1956
    • C:\Windows\x32\upd.exe
      "C:\Windows\x32\upd.exe"
      2⤵
      • Modifies firewall policy service
      • Modifies security service
      • Disables RegEdit via registry modification
      • 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 behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2548
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\_dcsc_.bat" "
      2⤵
      • Deletes itself
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2192
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 2
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:2868

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\_dcsc_.bat

    Filesize

    138B

    MD5

    473cf59101857d250d38fa73cdfeb27c

    SHA1

    d33d674c92974e04766cc221378ab1b019f8bff8

    SHA256

    4d1261de7866d1d9048b4da9f283f256c692d739d0cd7d1e24a1bf4cf43282b0

    SHA512

    851a93900fac7d764e41975dfc8242f698861046649530bd105bf76e4313f8de338f99e8231572695e87a3d5537be944aeeaca2cf488cac49c4dd95c04924078

  • \Windows\x32\upd.exe

    Filesize

    986KB

    MD5

    22a2278fc97db1a510ef9a2fbf5d7e90

    SHA1

    6c180bb95fb3bd856bd941ec6e9096058ba5536b

    SHA256

    aea5d3574ce30782d8079cb72ba9d7c7d63e3ef0c7d9f9356297b27b923143d5

    SHA512

    9810975b5816c8fdb6e218efc09f92b06e795d01cb33fb323b414441b3235eb3c4a174eea514490c5aeb7f6ba10eb238631caf81f7bad3e98b4fd89a92929c58

  • memory/1956-12-0x00000000056F0000-0x00000000057F7000-memory.dmp

    Filesize

    1.0MB

  • memory/1956-1-0x0000000000370000-0x0000000000371000-memory.dmp

    Filesize

    4KB

  • memory/1956-24-0x0000000000400000-0x0000000000507000-memory.dmp

    Filesize

    1.0MB

  • memory/1956-0-0x0000000000400000-0x0000000000507000-memory.dmp

    Filesize

    1.0MB

  • memory/1956-13-0x00000000056F0000-0x00000000057F7000-memory.dmp

    Filesize

    1.0MB

  • memory/2548-28-0x0000000000400000-0x0000000000507000-memory.dmp

    Filesize

    1.0MB

  • memory/2548-25-0x0000000000400000-0x0000000000507000-memory.dmp

    Filesize

    1.0MB

  • memory/2548-29-0x0000000000400000-0x0000000000507000-memory.dmp

    Filesize

    1.0MB

  • memory/2548-30-0x0000000000400000-0x0000000000507000-memory.dmp

    Filesize

    1.0MB

  • memory/2548-31-0x0000000000400000-0x0000000000507000-memory.dmp

    Filesize

    1.0MB

  • memory/2548-32-0x0000000000400000-0x0000000000507000-memory.dmp

    Filesize

    1.0MB

  • memory/2548-33-0x0000000000400000-0x0000000000507000-memory.dmp

    Filesize

    1.0MB

  • memory/2548-34-0x0000000000400000-0x0000000000507000-memory.dmp

    Filesize

    1.0MB

  • memory/2548-35-0x0000000000400000-0x0000000000507000-memory.dmp

    Filesize

    1.0MB

  • memory/2548-36-0x0000000000400000-0x0000000000507000-memory.dmp

    Filesize

    1.0MB

  • memory/2548-37-0x0000000000400000-0x0000000000507000-memory.dmp

    Filesize

    1.0MB

  • memory/2548-38-0x0000000000400000-0x0000000000507000-memory.dmp

    Filesize

    1.0MB