Analysis

  • max time kernel
    120s
  • max time network
    119s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-01-2025 14:13

General

  • Target

    540614de632096048ee54364395b33ac0dc2043d73a19e5cbfc66c0da85cb276N.exe

  • Size

    1013KB

  • MD5

    6e0fbeb3024f048d4af3c94ea6e01570

  • SHA1

    875d112d7d0d998ac0e02dac63308a51daacca5d

  • SHA256

    540614de632096048ee54364395b33ac0dc2043d73a19e5cbfc66c0da85cb276

  • SHA512

    87cd3ad011076ec4f3e6308b1bbfca7c5a21b662a3b16e766cb91c227f624fcf8258c403fa790c7bd39aec0733fdd7fdcf68fcc821be73d5fab4867479c0fb01

  • SSDEEP

    24576:64+HowUbJRS1/asWRMar5fHQ4VNQT3F9qVesoLl:64+Iw1eRLhjYbDqVRoR

Malware Config

Extracted

Family

darkcomet

Botnet

HaCkEd

C2

spyhacker.zapto.org:3070

Mutex

DC_MUTEX-D8DFF0W

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    ZCLBnAz03c07

  • 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 security service 2 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 2 IoCs
  • Sets file to hidden 1 TTPs 2 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 4 IoCs
  • Windows security modification 2 TTPs 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • AutoIT Executable 2 IoCs

    AutoIT scripts compiled to PE executables.

  • 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 12 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 64 IoCs
  • System policy modification 1 TTPs 3 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\540614de632096048ee54364395b33ac0dc2043d73a19e5cbfc66c0da85cb276N.exe
    "C:\Users\Admin\AppData\Local\Temp\540614de632096048ee54364395b33ac0dc2043d73a19e5cbfc66c0da85cb276N.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4176
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\ztmp\t29735.bat" "C:\Users\Admin\AppData\Local\Temp\540614de632096048ee54364395b33ac0dc2043d73a19e5cbfc66c0da85cb276N.exe" "
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3280
      • C:\Users\Admin\AppData\Local\Temp\afolder\2.exe
        2.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:5008
        • C:\Users\Admin\AppData\Local\Temp\afolder\2.exe
          "C:\Users\Admin\AppData\Local\Temp\afolder\2.exe"
          4⤵
          • Modifies WinLogon for persistence
          • Checks computer location settings
          • Executes dropped EXE
          • Adds Run key to start application
          • System Location Discovery: System Language Discovery
          • Modifies registry class
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2480
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\afolder\2.exe" +s +h
            5⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:4204
            • C:\Windows\SysWOW64\attrib.exe
              attrib "C:\Users\Admin\AppData\Local\Temp\afolder\2.exe" +s +h
              6⤵
              • Sets file to hidden
              • System Location Discovery: System Language Discovery
              • Views/modifies file attributes
              PID:852
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\afolder" +s +h
            5⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:3728
            • C:\Windows\SysWOW64\attrib.exe
              attrib "C:\Users\Admin\AppData\Local\Temp\afolder" +s +h
              6⤵
              • Sets file to hidden
              • System Location Discovery: System Language Discovery
              • Views/modifies file attributes
              PID:2788
          • C:\Windows\SysWOW64\notepad.exe
            notepad
            5⤵
            • System Location Discovery: System Language Discovery
            PID:4972
          • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
            "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:5004
            • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
              "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
              6⤵
              • Modifies security service
              • Windows security bypass
              • 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
              • Suspicious use of WriteProcessMemory
              • System policy modification
              PID:4292
              • C:\Windows\SysWOW64\notepad.exe
                notepad
                7⤵
                • System Location Discovery: System Language Discovery
                PID:1108

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\afolder\2.exe

    Filesize

    952KB

    MD5

    ec8975dd5daea4db3f8424efa79c349c

    SHA1

    6dc1a6270441da7c66fe10af5f7c7e2cac0fbbdd

    SHA256

    0e75cd9e4d50077a65dadd05183af11f4c753ef0addf45fef58b58e0642de574

    SHA512

    ecb0984eea29afbe5dbcdba940b051afe3ca7e67cb0364c1b6b49e9e0f4a392d1cd276f61ac04e2f2966d7fa3af8a41116b8b8c316d3629614043085f97cb459

  • C:\Users\Admin\AppData\Local\Temp\ztmp\t29735.bat

    Filesize

    205B

    MD5

    fafdc86a7ff9b50375a24da6ceffa80d

    SHA1

    bb7b71d0b89dcfbd95be5faa2a87dfb1a967711b

    SHA256

    83eb539b013ede01aa9accf359cec760a322c2e73e77be63f5ce22d91749935f

    SHA512

    e5572698f03190d229b12308dd77e7ad8b40e8303bc6ddb64bc6db478ea041a6ec4e91acfa6d2da00537389b70a212c70a0607af25aa444ac5b9f692c844b94d

  • memory/1108-87-0x0000000000E20000-0x0000000000E21000-memory.dmp

    Filesize

    4KB

  • memory/2480-90-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2480-11-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2480-13-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2480-14-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2480-17-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/4292-86-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/4292-93-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/4292-102-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/4292-88-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/4292-101-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/4292-85-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/4292-89-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/4292-100-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/4292-92-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/4292-99-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/4292-94-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/4292-95-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/4292-96-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/4292-97-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/4292-98-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/4972-21-0x0000000001180000-0x0000000001181000-memory.dmp

    Filesize

    4KB

  • memory/5004-84-0x0000000000400000-0x00000000004BE000-memory.dmp

    Filesize

    760KB

  • memory/5008-8-0x0000000000400000-0x00000000004BE000-memory.dmp

    Filesize

    760KB

  • memory/5008-16-0x0000000000400000-0x00000000004BE000-memory.dmp

    Filesize

    760KB