Analysis

  • max time kernel
    900s
  • max time network
    725s
  • platform
    windows11-21h2_x64
  • resource
    win11-20241007-en
  • resource tags

    arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    16/01/2025, 13:33

General

  • Target

    Malware-1-master/apache.exe

  • Size

    252KB

  • MD5

    8e747a4c115ac090e54dfa899c287129

  • SHA1

    a1c523ad0a2fa1b533fb752a25aa48ff1cd4e1e3

  • SHA256

    1117f585985ca4ddd03695876522f80951c919cb41db5854f013923f62285c09

  • SHA512

    049fae2cccf4e1afc79d9e72e016f27d7714ad8b747c28ec3ad520bc25ff319f12aced97d16dbbe863aaab11514a9e90477656983fd67939c0e6d2ddb93558b3

  • SSDEEP

    6144:ZcNYk1yuwEDBum3qYWnl0pd0EX3Zq2b6wfIDYm0PHQc:ZcWkbgTYWnYnt/IDYhPn

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

bibl1234.ddns.net:1604

Mutex

DC_MUTEX-QKPH38W

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    2PaBrGj3TwxK

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Signatures

  • Darkcomet

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

  • Darkcomet family
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Modifies firewall policy service 3 TTPs 3 IoCs
  • Modifies security service 2 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 2 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Disables Task Manager via registry modification
  • Sets file to hidden 1 TTPs 2 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Executes dropped EXE 1 IoCs
  • Windows security modification 2 TTPs 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • UPX packed file 31 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 6 IoCs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs
  • System policy modification 1 TTPs 3 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Malware-1-master\apache.exe
    "C:\Users\Admin\AppData\Local\Temp\Malware-1-master\apache.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4868
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\Malware-1-master\apache.exe" +s +h
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3956
      • C:\Windows\SysWOW64\attrib.exe
        attrib "C:\Users\Admin\AppData\Local\Temp\Malware-1-master\apache.exe" +s +h
        3⤵
        • Sets file to hidden
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:3352
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\Malware-1-master" +s +h
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2340
      • C:\Windows\SysWOW64\attrib.exe
        attrib "C:\Users\Admin\AppData\Local\Temp\Malware-1-master" +s +h
        3⤵
        • Sets file to hidden
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:2612
    • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
      "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
      2⤵
      • Modifies firewall policy service
      • Modifies security service
      • Windows security bypass
      • Disables RegEdit via registry modification
      • Executes dropped EXE
      • Windows security modification
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • System policy modification
      PID:4060

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe

    Filesize

    252KB

    MD5

    8e747a4c115ac090e54dfa899c287129

    SHA1

    a1c523ad0a2fa1b533fb752a25aa48ff1cd4e1e3

    SHA256

    1117f585985ca4ddd03695876522f80951c919cb41db5854f013923f62285c09

    SHA512

    049fae2cccf4e1afc79d9e72e016f27d7714ad8b747c28ec3ad520bc25ff319f12aced97d16dbbe863aaab11514a9e90477656983fd67939c0e6d2ddb93558b3

  • memory/4060-80-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4060-82-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4060-63-0x00000000007B0000-0x00000000007B1000-memory.dmp

    Filesize

    4KB

  • memory/4060-128-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4060-65-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4060-66-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4060-67-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4060-68-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4060-81-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4060-70-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4060-71-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4060-72-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4060-74-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4060-77-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4060-112-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4060-79-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4060-69-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4060-108-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4060-85-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4060-87-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4060-92-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4060-95-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4060-97-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4060-99-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4060-100-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4060-101-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4060-102-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4060-103-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4060-105-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4868-0-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4868-1-0x0000000000BD0000-0x0000000000BD1000-memory.dmp

    Filesize

    4KB

  • memory/4868-64-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB