Analysis

  • max time kernel
    151s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/05/2024, 17:22

General

  • Target
    fd9faea3c1b5fffab702b2faa1c3b0d3b89f82f1ff678084b5a5f95305f8c778.exe
  • Size 2.4MB
  • Sample240528-vxnreada9w
  • SHA256 fd9faea3c1b5fffab702b2faa1c3b0d3b89f82f1ff678084b5a5f95305f8c778
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Detect PurpleFox Rootkit 8 IoCs

    Detect PurpleFox Rootkit.

  • Gh0st RAT payload 9 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 5 IoCs
  • Loads dropped DLL 3 IoCs
  • UPX packed file 10 IoCs

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

  • Drops file in System32 directory 6 IoCs
  • Drops file in Program Files directory 1 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: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fd9faea3c1b5fffab702b2faa1c3b0d3b89f82f1ff678084b5a5f95305f8c778.exe
    "C:\Users\Admin\AppData\Local\Temp\fd9faea3c1b5fffab702b2faa1c3b0d3b89f82f1ff678084b5a5f95305f8c778.exe"
    1⤵
    • Drops file in Program Files directory
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4504
    • C:\Users\Admin\AppData\Local\Temp\R.exe
      C:\Users\Admin\AppData\Local\Temp\\R.exe
      2⤵
      • Sets DLL path for service in the registry
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      PID:4580
    • C:\Users\Admin\AppData\Local\Temp\N.exe
      C:\Users\Admin\AppData\Local\Temp\\N.exe
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4416
      • 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\N.exe > nul
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:5096
        • C:\Windows\SysWOW64\PING.EXE
          ping -n 2 127.0.0.1
          4⤵
          • Runs ping.exe
          PID:5036
  • C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
    1⤵
      PID:1812
    • C:\Windows\SysWOW64\svchost.exe
      C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
      1⤵
      • Loads dropped DLL
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:4928
      • C:\Windows\SysWOW64\Remote Data.exe
        "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\240655546.txt",MainThread
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:3368
    • C:\Windows\SysWOW64\TXPlatfor.exe
      C:\Windows\SysWOW64\TXPlatfor.exe -auto
      1⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:1348
      • C:\Windows\SysWOW64\TXPlatfor.exe
        C:\Windows\SysWOW64\TXPlatfor.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:1900
    • 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=3932 --field-trial-handle=2180,i,12780723798465539942,12010519452607841069,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:764

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            HD_X.dat

            • Path C:\Users\Admin\AppData\Local\Temp\HD_X.dat
            • Size 2.4MB
            • SHA256 fd9faea3c1b5fffab702b2faa1c3b0d3b89f82f1ff678084b5a5f95305f8c778
            • MD5 SHA1 SHA512 SSDEEP

            N.exe

            • Path C:\Users\Admin\AppData\Local\Temp\N.exe
            • Size 377KB
            • SHA256 3de6c02f52a661b8f934f59541d0cf297bb489eb2155e346b63c7338e09aeaf8
            • MD5 SHA1 SHA512 SSDEEP

            R.exe

            • Path C:\Users\Admin\AppData\Local\Temp\R.exe
            • Size 941KB
            • SHA256 bc29f2022ab3b812e50c8681ff196f090c038b5ab51e37daffac4469a8c2eb2c
            • MD5 SHA1 SHA512 SSDEEP

            RCXC9D5.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\RCXC9D5.tmp
            • Size 2.4MB
            • SHA256 94da6663d7e448dc4bff096ab7f22b11275664052b95e0cd7db513eb7fa432af
            • MD5 SHA1 SHA512 SSDEEP

            X.ico

            • Path C:\Users\Admin\AppData\Local\Temp\X.ico
            • Size 69KB
            • SHA256 020c8e0963f89f4b14538b7d69e83c6fec44a29bbbd52fbb6deb2be5c697f450
            • MD5 SHA1 SHA512 SSDEEP

            240655546.txt

            • Path C:\Windows\SysWOW64\240655546.txt
            • Size 899KB
            • SHA256 f7f4a469af2d7e1795bc9a8f47a2b5db355d9a50fb1fc16fbcbef23517030fa1
            • MD5 SHA1 SHA512 SSDEEP

            Remote Data.exe

            • Path C:\Windows\SysWOW64\Remote Data.exe
            • Size 60KB
            • SHA256 6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910
            • MD5 SHA1 SHA512 SSDEEP

            memory/1348-28-0x0000000010000000-0x00000000101B6000-memory.dmp

            memory/1348-29-0x0000000010000000-0x00000000101B6000-memory.dmp

            memory/1348-25-0x0000000010000000-0x00000000101B6000-memory.dmp

            memory/1900-45-0x0000000010000000-0x00000000101B6000-memory.dmp

            memory/1900-39-0x0000000010000000-0x00000000101B6000-memory.dmp

            memory/1900-36-0x0000000010000000-0x00000000101B6000-memory.dmp

            memory/4416-15-0x0000000010000000-0x00000000101B6000-memory.dmp

            memory/4416-16-0x0000000010000000-0x00000000101B6000-memory.dmp

            memory/4416-14-0x0000000010000000-0x00000000101B6000-memory.dmp

            memory/4416-12-0x0000000010000000-0x00000000101B6000-memory.dmp