Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/05/2024, 09:47

General

  • Target
    d8c473ed156ea08e008b622abf1c89fefccf9cc09ffd7c765e40fe8d728aa3e0.exe
  • Size 5.3MB
  • Sample240526-lsjr8aeb21
  • SHA256 d8c473ed156ea08e008b622abf1c89fefccf9cc09ffd7c765e40fe8d728aa3e0
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Detect PurpleFox Rootkit 9 IoCs

    Detect PurpleFox Rootkit.

  • Gh0st RAT payload 10 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 DLL path for service in the registry 2 TTPs 1 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • Executes dropped EXE 6 IoCs
  • Loads dropped DLL 3 IoCs
  • UPX packed file 11 IoCs

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

  • Drops file in System32 directory 6 IoCs
  • Drops file in Program Files directory 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d8c473ed156ea08e008b622abf1c89fefccf9cc09ffd7c765e40fe8d728aa3e0.exe
    "C:\Users\Admin\AppData\Local\Temp\d8c473ed156ea08e008b622abf1c89fefccf9cc09ffd7c765e40fe8d728aa3e0.exe"
    1⤵
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4756
    • 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:4428
      • 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:2188
        • C:\Windows\SysWOW64\PING.EXE
          ping -n 2 127.0.0.1
          4⤵
          • Runs ping.exe
          PID:2656
    • C:\Users\Admin\AppData\Local\Temp\svchos.exe
      C:\Users\Admin\AppData\Local\Temp\\svchos.exe
      2⤵
      • Sets DLL path for service in the registry
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      PID:720
    • C:\Users\Admin\AppData\Local\Temp\HD_d8c473ed156ea08e008b622abf1c89fefccf9cc09ffd7c765e40fe8d728aa3e0.exe
      C:\Users\Admin\AppData\Local\Temp\HD_d8c473ed156ea08e008b622abf1c89fefccf9cc09ffd7c765e40fe8d728aa3e0.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:1984
  • C:\Windows\SysWOW64\TXPlatforn.exe
    C:\Windows\SysWOW64\TXPlatforn.exe -auto
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:4888
    • 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:1528
  • C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe -k "Ö÷¶¯·ÀÓù·þÎñÄ£¿é"
    1⤵
      PID:1424
    • C:\Windows\SysWOW64\svchost.exe
      C:\Windows\SysWOW64\svchost.exe -k "Ö÷¶¯·ÀÓù·þÎñÄ£¿é"
      1⤵
      • Loads dropped DLL
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:4788
      • C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe
        C:\Windows\system32\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe "c:\windows\system32\240596375.txt",MainThread
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:1228

    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 1.5MB
          • SHA256 436572c2412c3059730c5cdb71fb1a429ca7f1747c995a422fae9cd2ab95bc19
          • MD5 SHA1 SHA512 SSDEEP

          HD_d8c473ed156ea08e008b622abf1c89fefccf9cc09ffd7c765e40fe8d728aa3e0.exe

          • Path C:\Users\Admin\AppData\Local\Temp\HD_d8c473ed156ea08e008b622abf1c89fefccf9cc09ffd7c765e40fe8d728aa3e0.exe
          • Size 3.8MB
          • SHA256 6eefd645d4fbb5239f4c3f126bcc08556225294d20f433f86d94d6e1b2d596f7
          • 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

          240596375.txt

          • Path C:\Windows\SysWOW64\240596375.txt
          • Size 50KB
          • SHA256 2e5c0fe0032bb96c08aef8d7dbe8414154f9f98f1e6deaf8ac58dfff8eb5e73a
          • 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/1528-47-0x0000000010000000-0x00000000101B6000-memory.dmp

          memory/1528-39-0x0000000010000000-0x00000000101B6000-memory.dmp

          memory/4428-7-0x0000000010000000-0x00000000101B6000-memory.dmp

          memory/4428-10-0x0000000010000000-0x00000000101B6000-memory.dmp

          memory/4428-6-0x0000000010000000-0x00000000101B6000-memory.dmp

          memory/4428-4-0x0000000010000000-0x00000000101B6000-memory.dmp

          memory/4888-15-0x0000000010000000-0x00000000101B6000-memory.dmp

          memory/4888-35-0x0000000010000000-0x00000000101B6000-memory.dmp

          memory/4888-16-0x0000000010000000-0x00000000101B6000-memory.dmp

          memory/4888-14-0x0000000010000000-0x00000000101B6000-memory.dmp

          memory/4888-19-0x0000000010000000-0x00000000101B6000-memory.dmp