Analysis

  • max time kernel
    150s
  • max time network
    130s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/05/2024, 09:37

General

  • Target
    8f491c9a229cf16054bbb4aaf533f32c0d531d9036e88703c2371c871194be6e.exe
  • Size 1.6MB
  • Sample240530-lltnvaeb82
  • SHA256 8f491c9a229cf16054bbb4aaf533f32c0d531d9036e88703c2371c871194be6e
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Detect PurpleFox Rootkit 11 IoCs

    Detect PurpleFox Rootkit.

  • Gh0st RAT payload 12 IoCs
  • Gh0strat

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

  • PurpleFox

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

  • Drops file in Drivers directory 1 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 13 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in System32 directory 3 IoCs
  • Drops file in Program Files directory 5 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 2 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8f491c9a229cf16054bbb4aaf533f32c0d531d9036e88703c2371c871194be6e.exe
    "C:\Users\Admin\AppData\Local\Temp\8f491c9a229cf16054bbb4aaf533f32c0d531d9036e88703c2371c871194be6e.exe"
    1⤵
    • Drops file in Program Files directory
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2884
    • C:\Users\Admin\AppData\Local\Temp\svchost.exe
      C:\Users\Admin\AppData\Local\Temp\\svchost.exe
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1904
      • 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\svchost.exe > nul
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3560
        • C:\Windows\SysWOW64\PING.EXE
          ping -n 2 127.0.0.1
          4⤵
          • Runs ping.exe
          PID:4936
    • C:\Users\Admin\AppData\Local\Temp\svchos.exe
      C:\Users\Admin\AppData\Local\Temp\\svchos.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      PID:764
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 764 -s 448
        3⤵
        • Program crash
        PID:3040
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 764 -s 452
        3⤵
        • Program crash
        PID:4852
  • C:\Windows\SysWOW64\TXPlatforn.exe
    C:\Windows\SysWOW64\TXPlatforn.exe -auto
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:2868
    • C:\Windows\SysWOW64\TXPlatforn.exe
      C:\Windows\SysWOW64\TXPlatforn.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:1148
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 764 -ip 764
    1⤵
      PID:4976
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 764 -ip 764
      1⤵
        PID:5088

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            HD_X.dat

            • Path C:\Users\Admin\AppData\Local\Temp\HD_X.dat
            • Size 1.6MB
            • SHA256 8f491c9a229cf16054bbb4aaf533f32c0d531d9036e88703c2371c871194be6e
            • MD5 SHA1 SHA512 SSDEEP

            svchos.exe

            • Path C:\Users\Admin\AppData\Local\Temp\svchos.exe
            • Size 93KB
            • SHA256 62954fdf65e629b39a29f539619d20691332184c6b6be5a826128a8e759bfa84
            • MD5 SHA1 SHA512 SSDEEP

            svchost.exe

            • Path C:\Users\Admin\AppData\Local\Temp\svchost.exe
            • Size 377KB
            • SHA256 6156d003d54dcf2ee92f21bd6e7a6a7f91730bd2804381260bcabe465abe6ddd
            • MD5 SHA1 SHA512 SSDEEP

            240612390.txt

            • Path C:\Windows\SysWOW64\240612390.txt
            • Size 50KB
            • SHA256 56c03a569c8fb80298043722fb337b703384bb5c9de244ccd6d4e310e60e5d96
            • MD5 SHA1 SHA512 SSDEEP

            memory/1148-33-0x0000000010000000-0x00000000101B6000-memory.dmp

            memory/1148-32-0x0000000010000000-0x00000000101B6000-memory.dmp

            memory/1148-37-0x0000000010000000-0x00000000101B6000-memory.dmp

            memory/1148-38-0x0000000010000000-0x00000000101B6000-memory.dmp

            memory/1904-10-0x0000000010000000-0x00000000101B6000-memory.dmp

            memory/1904-7-0x0000000010000000-0x00000000101B6000-memory.dmp

            memory/1904-6-0x0000000010000000-0x00000000101B6000-memory.dmp

            memory/1904-5-0x0000000010000000-0x00000000101B6000-memory.dmp

            memory/2868-16-0x0000000010000000-0x00000000101B6000-memory.dmp

            memory/2868-15-0x0000000010000000-0x00000000101B6000-memory.dmp

            memory/2868-13-0x0000000010000000-0x00000000101B6000-memory.dmp

            memory/2868-27-0x0000000010000000-0x00000000101B6000-memory.dmp

            memory/2868-17-0x0000000010000000-0x00000000101B6000-memory.dmp