Analysis

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

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/12/2024, 18:50

General

  • Target
    3d62820cc012ef98c3354e5800cdee98577d28d49156c58b4045024e35b8c58b.exe
  • Size 1.2MB
  • Sample241229-xg84hsvrfk
  • SHA256 3d62820cc012ef98c3354e5800cdee98577d28d49156c58b4045024e35b8c58b
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Detect PurpleFox Rootkit 7 IoCs

    Detect PurpleFox Rootkit.

  • Gh0st RAT payload 8 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 9 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\3d62820cc012ef98c3354e5800cdee98577d28d49156c58b4045024e35b8c58b.exe
    "C:\Users\Admin\AppData\Local\Temp\3d62820cc012ef98c3354e5800cdee98577d28d49156c58b4045024e35b8c58b.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:4332
    • 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:2832
    • 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:4768
    • 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:3960
      • 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:2784
        • 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:3900
    • 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:1976
    • 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:4300
  • C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe -k "Ö÷¶¯·ÀÓù·þÎñÄ£¿é"
    1⤵
      PID:3776
    • 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:3148
      • C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe
        C:\Windows\system32\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe "c:\windows\system32\240624109.txt",MainThread
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4656
    • 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:2344
      • 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:1940

    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 fc9f04160a91424d406b36fff0b8962a708009c3479c2bc88df6db4699e3f34a
          • MD5 SHA1 SHA512

          svchcst.exe

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\svchcst.exe
          • Size 1.2MB
          • SHA256 a208b0264ff03b06271709fe900f85338f9c04563758b872051f7bd425c22f89
          • MD5 SHA1 SHA512 SSDEEP

          240624109.txt

          • Path C:\Windows\SysWOW64\240624109.txt
          • Size 49KB
          • SHA256 9051beab1991cdb2d1c3c03132f0642e28b09b6e0c4925a3445ab0c9020b932f
          • 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/1940-55-0x0000000010000000-0x00000000101BA000-memory.dmp

          memory/1940-50-0x0000000010000000-0x00000000101BA000-memory.dmp

          memory/1940-54-0x0000000010000000-0x00000000101BA000-memory.dmp

          memory/2344-39-0x0000000010000000-0x00000000101BA000-memory.dmp

          memory/2344-40-0x0000000010000000-0x00000000101BA000-memory.dmp

          memory/2344-37-0x0000000010000000-0x00000000101BA000-memory.dmp

          memory/3960-27-0x0000000010000000-0x00000000101BA000-memory.dmp

          memory/3960-26-0x0000000010000000-0x00000000101BA000-memory.dmp

          memory/3960-24-0x0000000010000000-0x00000000101BA000-memory.dmp

          memory/4332-0-0x0000000000400000-0x0000000000760000-memory.dmp

          memory/4332-72-0x0000000000400000-0x0000000000760000-memory.dmp

          memory/4332-75-0x0000000000400000-0x0000000000760000-memory.dmp

          memory/4332-78-0x0000000000400000-0x0000000000760000-memory.dmp

          memory/4332-82-0x0000000000400000-0x0000000000760000-memory.dmp

          memory/4332-1-0x0000000000400000-0x0000000000760000-memory.dmp

          memory/4332-85-0x0000000000400000-0x0000000000760000-memory.dmp

          memory/4332-88-0x0000000000400000-0x0000000000760000-memory.dmp

          memory/4332-91-0x0000000000400000-0x0000000000760000-memory.dmp