Analysis

  • max time kernel
    900s
  • max time network
    737s
  • 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/mysqlconf.exe

  • Size

    252KB

  • MD5

    fac6ab167e1b02c2e1465ae88fb8fcdc

  • SHA1

    fe4fff9c4681c3f146c3ea31961d0a2933f07098

  • SHA256

    cc02e9684f8e78227a2ec631172d32fbb48a4fc2a60fd91d160d2ef5e11c587b

  • SHA512

    82a912a914ca01b533e97ece88550c25d3ba8095c71110fce55e38805ead66807c05b154adff0a457c6d8c98c96f6204503f158ba9dd38928ef86c8d3e0d089c

  • SSDEEP

    6144:jcNYk1yuwEDBum3qYWnl0pd0EX3Zq2b6wfIDYm0PHQCO:jcWkbgTYWnYnt/IDYhPs

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

pizdash.ddns.net:1604

Mutex

DC_MUTEX-DEWENBF

Attributes
  • InstallPath

    Windows\msdcsc.exe

  • gencode

    PzLhqrqGHW1C

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    System32

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 22 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\mysqlconf.exe
    "C:\Users\Admin\AppData\Local\Temp\Malware-1-master\mysqlconf.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:3096
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\Malware-1-master\mysqlconf.exe" +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\mysqlconf.exe" +s +h
        3⤵
        • Sets file to hidden
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:124
    • 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:3932
      • 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:4916
    • C:\Users\Admin\AppData\Local\Temp\Windows\msdcsc.exe
      "C:\Users\Admin\AppData\Local\Temp\Windows\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:756

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\Windows\msdcsc.exe

    Filesize

    252KB

    MD5

    fac6ab167e1b02c2e1465ae88fb8fcdc

    SHA1

    fe4fff9c4681c3f146c3ea31961d0a2933f07098

    SHA256

    cc02e9684f8e78227a2ec631172d32fbb48a4fc2a60fd91d160d2ef5e11c587b

    SHA512

    82a912a914ca01b533e97ece88550c25d3ba8095c71110fce55e38805ead66807c05b154adff0a457c6d8c98c96f6204503f158ba9dd38928ef86c8d3e0d089c

  • memory/756-70-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/756-72-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/756-63-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/756-100-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/756-65-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/756-66-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/756-67-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/756-68-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/756-69-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/756-74-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/756-92-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/756-71-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/756-89-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/756-75-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/756-76-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/756-79-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/756-81-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/756-85-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/756-87-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/3096-0-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/3096-1-0x0000000000D50000-0x0000000000D51000-memory.dmp

    Filesize

    4KB

  • memory/3096-64-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB