Analysis

  • max time kernel
    151s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/05/2024, 09:14

General

  • Target
    5fb5676374f59dc8e28b2fb4036ce88a084e7b73e6a6fc5410cfae6dfd560d94.exe
  • Size 2.9MB
  • Sample240529-k7j6vsae64
  • SHA256 5fb5676374f59dc8e28b2fb4036ce88a084e7b73e6a6fc5410cfae6dfd560d94
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Detect PurpleFox Rootkit 10 IoCs

    Detect PurpleFox Rootkit.

  • Gh0st RAT payload 11 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 7 IoCs
  • Loads dropped DLL 3 IoCs
  • UPX packed file 12 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).

  • Modifies data under HKEY_USERS 1 IoCs
  • Modifies registry class 1 IoCs
  • 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 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5fb5676374f59dc8e28b2fb4036ce88a084e7b73e6a6fc5410cfae6dfd560d94.exe
    "C:\Users\Admin\AppData\Local\Temp\5fb5676374f59dc8e28b2fb4036ce88a084e7b73e6a6fc5410cfae6dfd560d94.exe"
    1⤵
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4656
    • 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:1648
      • 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:2160
        • C:\Windows\SysWOW64\PING.EXE
          ping -n 2 127.0.0.1
          4⤵
          • Runs ping.exe
          PID:924
    • 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:820
    • C:\Users\Admin\AppData\Local\Temp\HD_5fb5676374f59dc8e28b2fb4036ce88a084e7b73e6a6fc5410cfae6dfd560d94.exe
      C:\Users\Admin\AppData\Local\Temp\HD_5fb5676374f59dc8e28b2fb4036ce88a084e7b73e6a6fc5410cfae6dfd560d94.exe
      2⤵
      • Executes dropped EXE
      • Modifies data under HKEY_USERS
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:5064
      • C:\Users\Admin\AppData\Local\Temp\HD_5fb5676374f59dc8e28b2fb4036ce88a084e7b73e6a6fc5410cfae6dfd560d94.exe
        "C:\Users\Admin\AppData\Local\Temp\HD_5fb5676374f59dc8e28b2fb4036ce88a084e7b73e6a6fc5410cfae6dfd560d94.exe" --channel=5064.0.1398743905 --type=renderer
        3⤵
        • Executes dropped EXE
        PID:1612
  • C:\Windows\SysWOW64\TXPlatforn.exe
    C:\Windows\SysWOW64\TXPlatforn.exe -auto
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:2592
    • 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:2928
  • C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe -k "Ö÷¶¯·ÀÓù·þÎñÄ£¿é"
    1⤵
      PID:2020
    • C:\Windows\SysWOW64\svchost.exe
      C:\Windows\SysWOW64\svchost.exe -k "Ö÷¶¯·ÀÓù·þÎñÄ£¿é"
      1⤵
      • Loads dropped DLL
      • Drops file in System32 directory
      PID:1716
      • C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe
        C:\Windows\system32\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe "c:\windows\system32\240653234.txt",MainThread
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:4032
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4148 --field-trial-handle=2280,i,4114443225282860369,4764091921472631035,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:3244

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            HD_5fb5676374f59dc8e28b2fb4036ce88a084e7b73e6a6fc5410cfae6dfd560d94.exe

            • Path C:\Users\Admin\AppData\Local\Temp\HD_5fb5676374f59dc8e28b2fb4036ce88a084e7b73e6a6fc5410cfae6dfd560d94.exe
            • Size 1.5MB
            • SHA256 00d2ce2c35e8f2d31c2a8778c6e8846be3d1467cd1e66aa494571a14dea0e4d1
            • MD5 SHA1 SHA512 SSDEEP

            HD_X.dat

            • Path C:\Users\Admin\AppData\Local\Temp\HD_X.dat
            • Size 1.4MB
            • SHA256 ad212da4c47a4950cd44e058e68890807db491daff055c55fe914a987a5a7a6d
            • MD5 SHA1 SHA512 SSDEEP

            RCXB9BB.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\RCXB9BB.tmp
            • Size 1.4MB
            • SHA256 bc495be39caf36cb25018d8194ba387de39ffff809c13d092248db9bb8ef602f
            • MD5 SHA1 SHA512 SSDEEP

            X.ico

            • Path C:\Users\Admin\AppData\Local\Temp\X.ico
            • Size 69KB
            • SHA256 020c8e0963f89f4b14538b7d69e83c6fec44a29bbbd52fbb6deb2be5c697f450
            • 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

            240653234.txt

            • Path C:\Windows\SysWOW64\240653234.txt
            • Size 50KB
            • SHA256 47bdcbe28bf51eec3d06aad95c2d96f4c9d23ef1a1d536a71b9d692b572a6d35
            • 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/1648-8-0x0000000010000000-0x00000000101B6000-memory.dmp

            memory/1648-4-0x0000000010000000-0x00000000101B6000-memory.dmp

            memory/1648-6-0x0000000010000000-0x00000000101B6000-memory.dmp

            memory/1648-7-0x0000000010000000-0x00000000101B6000-memory.dmp

            memory/2592-14-0x0000000010000000-0x00000000101B6000-memory.dmp

            memory/2592-35-0x0000000010000000-0x00000000101B6000-memory.dmp

            memory/2592-16-0x0000000010000000-0x00000000101B6000-memory.dmp

            memory/2592-17-0x0000000010000000-0x00000000101B6000-memory.dmp

            memory/2592-15-0x0000000010000000-0x00000000101B6000-memory.dmp

            memory/2928-37-0x0000000010000000-0x00000000101B6000-memory.dmp

            memory/2928-32-0x0000000010000000-0x00000000101B6000-memory.dmp

            memory/2928-30-0x0000000010000000-0x00000000101B6000-memory.dmp