Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/11/2024, 02:30

General

  • Target
    4ee68f0bc9b2bca5e32b691e47f17db9bbb19efba236d10f988a972f9bc9e785.exe
  • Size 1.2MB
  • Sample241108-czcg2stbph
  • SHA256 4ee68f0bc9b2bca5e32b691e47f17db9bbb19efba236d10f988a972f9bc9e785
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Detect PurpleFox Rootkit 6 IoCs

    Detect PurpleFox Rootkit.

  • Gh0st RAT payload 7 IoCs
  • Gh0strat

    Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.

  • Gh0strat family
  • PurpleFox

    PurpleFox is an exploit kit used to distribute other malware families and first seen in 2018.

  • Purplefox family
  • Drops file in Drivers directory 1 IoCs
  • Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 1 IoCs
  • Executes dropped EXE 6 IoCs
  • Loads dropped DLL 3 IoCs
  • VMProtect packed file 10 IoCs

    Detects executables packed with VMProtect commercial packer.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in System32 directory 7 IoCs
  • UPX packed file 8 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 11 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 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Modifies registry class 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4ee68f0bc9b2bca5e32b691e47f17db9bbb19efba236d10f988a972f9bc9e785.exe
    "C:\Users\Admin\AppData\Local\Temp\4ee68f0bc9b2bca5e32b691e47f17db9bbb19efba236d10f988a972f9bc9e785.exe"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1636
    • C:\Users\Admin\AppData\Local\Temp\AK47.exe
      "C:\Users\Admin\AppData\Local\Temp\AK47.exe"
      2⤵
      • Server Software Component: Terminal Services DLL
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      PID:5052
    • C:\Users\Admin\AppData\Local\Temp\AK47.exe
      C:\Users\Admin\AppData\Local\Temp\\AK47.exe
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      PID:3048
    • C:\Users\Admin\AppData\Local\Temp\AK74.exe
      C:\Users\Admin\AppData\Local\Temp\\AK74.exe
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2044
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ping -n 2 127.0.0.1 > nul && del C:\Users\Admin\AppData\Local\Temp\AK74.exe > nul
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Suspicious use of WriteProcessMemory
        PID:3112
        • C:\Windows\SysWOW64\PING.EXE
          ping -n 2 127.0.0.1
          4⤵
          • System Location Discovery: System Language Discovery
          • System Network Configuration Discovery: Internet Connection Discovery
          • Runs ping.exe
          PID:5060
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\VBS3.vbs"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4668
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\VBS3.vbs"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1216
  • C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe -k "Ö÷¶¯·ÀÓù·þÎñÄ£¿é"
    1⤵
      PID:508
    • C:\Windows\SysWOW64\svchost.exe
      C:\Windows\SysWOW64\svchost.exe -k "Ö÷¶¯·ÀÓù·þÎñÄ£¿é"
      1⤵
      • Loads dropped DLL
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2612
      • C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe
        C:\Windows\system32\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe "c:\windows\system32\240621296.txt",MainThread
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5028
    • C:\Windows\SysWOW64\Ghiya.exe
      C:\Windows\SysWOW64\Ghiya.exe -auto
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2728
      • C:\Windows\SysWOW64\Ghiya.exe
        C:\Windows\SysWOW64\Ghiya.exe -acsi
        2⤵
        • Drops file in Drivers directory
        • Sets service image path in registry
        • Executes dropped EXE
        • Suspicious behavior: LoadsDriver
        • Suspicious use of AdjustPrivilegeToken
        PID:2136

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          AK47.exe

          • Path C:\Users\Admin\AppData\Local\Temp\AK47.exe
          • Size 91KB
          • SHA256 050b4f2d5ae8eaecd414318dc8e222a56f169626da6ca8feb7edd78e8b1f0218
          • MD5 SHA1 SHA512 SSDEEP

          AK74.exe

          • Path C:\Users\Admin\AppData\Local\Temp\AK74.exe
          • Size 400KB
          • SHA256 3080b6bb456564899b0d99d4131bd6a0b284d31f7d80ef773e4872d94048d49a
          • MD5 SHA1 SHA512 SSDEEP

          Config.ini

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Config.ini
          • Size 92B
          • SHA256 56225be6838bc6e93ea215891eacf28844ae27a9f8b2b29bf19d3a8c2b1f58df
          • MD5 SHA1 SHA512

          VBS3.vbs

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\VBS3.vbs
          • Size 753B
          • SHA256 a9c667aa000ac84907a771961287701109fd49a99922fdea5613d1d407285958
          • MD5 SHA1 SHA512

          svchcst.exe

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\svchcst.exe
          • Size 1.2MB
          • SHA256 32b780a3b44706b6394e09596f8076b87fe43418cd57d3da765806125ab15341
          • MD5 SHA1 SHA512 SSDEEP

          240621296.txt

          • Path C:\Windows\SysWOW64\240621296.txt
          • Size 49KB
          • SHA256 dc967448068ce2d2d9786b81176d4ec7a6458ffe5fc35b893a98db109c1ff32a
          • MD5 SHA1 SHA512 SSDEEP

          Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe

          • Path C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe
          • Size 60KB
          • SHA256 6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910
          • MD5 SHA1 SHA512 SSDEEP

          memory/1636-84-0x0000000000400000-0x0000000000760000-memory.dmp

          memory/1636-71-0x0000000000400000-0x0000000000760000-memory.dmp

          memory/1636-87-0x0000000000400000-0x0000000000760000-memory.dmp

          memory/1636-81-0x0000000000400000-0x0000000000760000-memory.dmp

          memory/1636-77-0x0000000000400000-0x0000000000760000-memory.dmp

          memory/1636-74-0x0000000000400000-0x0000000000760000-memory.dmp

          memory/1636-0-0x0000000000400000-0x0000000000760000-memory.dmp

          memory/1636-90-0x0000000000400000-0x0000000000760000-memory.dmp

          memory/1636-1-0x0000000000400000-0x0000000000760000-memory.dmp

          memory/2044-28-0x0000000010000000-0x00000000101BA000-memory.dmp

          memory/2044-30-0x0000000010000000-0x00000000101BA000-memory.dmp

          memory/2044-31-0x0000000010000000-0x00000000101BA000-memory.dmp

          memory/2136-55-0x0000000010000000-0x00000000101BA000-memory.dmp

          memory/2136-46-0x0000000010000000-0x00000000101BA000-memory.dmp

          memory/2728-37-0x0000000010000000-0x00000000101BA000-memory.dmp

          memory/2728-39-0x0000000010000000-0x00000000101BA000-memory.dmp

          memory/2728-40-0x0000000010000000-0x00000000101BA000-memory.dmp