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
    01/11/2024, 08:23

General

  • Target
    64d7758d89651147a620fd3570161f163f84d1313dea7013d920dbdca33db4f9.exe
  • Size 1.2MB
  • Sample241101-kadyksyerc
  • SHA256 64d7758d89651147a620fd3570161f163f84d1313dea7013d920dbdca33db4f9
  • 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 5 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 8 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 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\64d7758d89651147a620fd3570161f163f84d1313dea7013d920dbdca33db4f9.exe
    "C:\Users\Admin\AppData\Local\Temp\64d7758d89651147a620fd3570161f163f84d1313dea7013d920dbdca33db4f9.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:4984
    • 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:3956
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3956 -s 492
        3⤵
        • Program crash
        PID:2664
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3956 -s 468
        3⤵
        • Program crash
        PID:3156
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3956 -s 448
        3⤵
        • Program crash
        PID:4268
    • 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:2844
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2844 -s 348
        3⤵
        • Program crash
        PID:2636
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2844 -s 356
        3⤵
        • Program crash
        PID:1508
    • 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:868
      • 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:3452
        • 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:3128
    • 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:708
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3956 -ip 3956
    1⤵
      PID:2792
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 204 -p 2844 -ip 2844
      1⤵
        PID:2628
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3956 -ip 3956
        1⤵
          PID:2448
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 2844 -ip 2844
          1⤵
            PID:3692
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 3956 -ip 3956
            1⤵
              PID:4824
            • 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:2028
              • 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:4988

            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 33578e675fabc7385b1bedb4b8daf725b0aa5e5d666ac5878d8f766310ac0b98
                  • MD5 SHA1 SHA512

                  svchcst.exe

                  • Path C:\Users\Admin\AppData\Roaming\Microsoft\svchcst.exe
                  • Size 1.2MB
                  • SHA256 f7572dc9e38ab1fc9b4bc939f047364df4d4de726b8dc6c50f3ffbcd912c8dce
                  • MD5 SHA1 SHA512 SSDEEP

                  240621109.txt

                  • Path C:\Windows\SysWOW64\240621109.txt
                  • Size 49KB
                  • SHA256 d77bdc01d764690a2b159ebf18fd5923b75add50988dd928a55c0327f4ecc0b0
                  • MD5 SHA1 SHA512 SSDEEP

                  memory/868-24-0x0000000010000000-0x00000000101BA000-memory.dmp

                  memory/868-26-0x0000000010000000-0x00000000101BA000-memory.dmp

                  memory/868-27-0x0000000010000000-0x00000000101BA000-memory.dmp

                  memory/2028-35-0x0000000010000000-0x00000000101BA000-memory.dmp

                  memory/2028-34-0x0000000010000000-0x00000000101BA000-memory.dmp

                  memory/2028-32-0x0000000010000000-0x00000000101BA000-memory.dmp

                  memory/4984-66-0x0000000000400000-0x0000000000760000-memory.dmp

                  memory/4984-60-0x0000000000400000-0x0000000000760000-memory.dmp

                  memory/4984-63-0x0000000000400000-0x0000000000760000-memory.dmp

                  memory/4984-0-0x0000000000400000-0x0000000000760000-memory.dmp

                  memory/4984-70-0x0000000000400000-0x0000000000760000-memory.dmp

                  memory/4984-1-0x0000000000400000-0x0000000000760000-memory.dmp

                  memory/4984-73-0x0000000000400000-0x0000000000760000-memory.dmp

                  memory/4984-76-0x0000000000400000-0x0000000000760000-memory.dmp

                  memory/4984-80-0x0000000000400000-0x0000000000760000-memory.dmp

                  memory/4988-50-0x0000000010000000-0x00000000101BA000-memory.dmp

                  memory/4988-49-0x0000000010000000-0x00000000101BA000-memory.dmp

                  memory/4988-45-0x0000000010000000-0x00000000101BA000-memory.dmp