Analysis

  • max time kernel
    150s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/11/2024, 09:00

General

  • Target
    8ab71f177a2861e3959f3ef8aa6ce099c991fe9920fb168926d5d5f5b2aff3bc.exe
  • Size 1.2MB
  • Sample241106-kynspazkdn
  • SHA256 8ab71f177a2861e3959f3ef8aa6ce099c991fe9920fb168926d5d5f5b2aff3bc
  • 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
  • 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 5 IoCs
  • Loads dropped DLL 1 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 4 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).

  • Program crash 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 9 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 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8ab71f177a2861e3959f3ef8aa6ce099c991fe9920fb168926d5d5f5b2aff3bc.exe
    "C:\Users\Admin\AppData\Local\Temp\8ab71f177a2861e3959f3ef8aa6ce099c991fe9920fb168926d5d5f5b2aff3bc.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:3920
    • C:\Users\Admin\AppData\Local\Temp\AK47.exe
      "C:\Users\Admin\AppData\Local\Temp\AK47.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      PID:4692
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4692 -s 392
        3⤵
        • Program crash
        PID:4520
    • 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:864
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 864 -s 420
        3⤵
        • Program crash
        PID:1732
    • 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:1488
      • 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:1956
        • 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:4576
    • 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:2268
    • 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:4656
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 4692 -ip 4692
    1⤵
      PID:1392
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 864 -ip 864
      1⤵
        PID:3288
      • 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:4856
        • 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:1452

      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 52b2f297e6d2f8b8282e51caa5f7b22d264c3416d9acc82efe4d8d13edb39f60
            • MD5 SHA1 SHA512

            svchcst.exe

            • Path C:\Users\Admin\AppData\Roaming\Microsoft\svchcst.exe
            • Size 1.2MB
            • SHA256 e71ec3d3621b79ae2040025961217b5b68206a41b1fbc87584040d271b1ced5c
            • MD5 SHA1 SHA512 SSDEEP

            240623343.txt

            • Path C:\Windows\SysWOW64\240623343.txt
            • Size 49KB
            • SHA256 a074b66c42fc4a3a39dfe194769a681ebdc3e2be074d6c248463d6007a01b976
            • MD5 SHA1 SHA512 SSDEEP

            memory/1452-45-0x0000000010000000-0x00000000101BA000-memory.dmp

            memory/1452-50-0x0000000010000000-0x00000000101BA000-memory.dmp

            memory/1452-49-0x0000000010000000-0x00000000101BA000-memory.dmp

            memory/1488-24-0x0000000010000000-0x00000000101BA000-memory.dmp

            memory/1488-27-0x0000000010000000-0x00000000101BA000-memory.dmp

            memory/1488-26-0x0000000010000000-0x00000000101BA000-memory.dmp

            memory/3920-62-0x0000000000400000-0x0000000000760000-memory.dmp

            memory/3920-0-0x0000000000400000-0x0000000000760000-memory.dmp

            memory/3920-65-0x0000000000400000-0x0000000000760000-memory.dmp

            memory/3920-68-0x0000000000400000-0x0000000000760000-memory.dmp

            memory/3920-72-0x0000000000400000-0x0000000000760000-memory.dmp

            memory/3920-1-0x0000000000400000-0x0000000000760000-memory.dmp

            memory/3920-75-0x0000000000400000-0x0000000000760000-memory.dmp

            memory/3920-78-0x0000000000400000-0x0000000000760000-memory.dmp

            memory/3920-81-0x0000000000400000-0x0000000000760000-memory.dmp

            memory/4856-35-0x0000000010000000-0x00000000101BA000-memory.dmp

            memory/4856-34-0x0000000010000000-0x00000000101BA000-memory.dmp

            memory/4856-32-0x0000000010000000-0x00000000101BA000-memory.dmp