Analysis

  • max time kernel
    150s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/05/2024, 09:15

General

  • Target
    ab14f61b88e3516f7b7595afe9399ff16c918d8a1ef3602223974af92a660ded.exe
  • Size 6.4MB
  • Sample240526-k8antaeb53
  • SHA256 ab14f61b88e3516f7b7595afe9399ff16c918d8a1ef3602223974af92a660ded
  • 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 6 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
  • Suspicious use of NtSetInformationThreadHideFromDebugger 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 4 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 7 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ab14f61b88e3516f7b7595afe9399ff16c918d8a1ef3602223974af92a660ded.exe
    "C:\Users\Admin\AppData\Local\Temp\ab14f61b88e3516f7b7595afe9399ff16c918d8a1ef3602223974af92a660ded.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1636
    • 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:4788
    • 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:4092
      • 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:1204
        • C:\Windows\SysWOW64\PING.EXE
          ping -n 2 127.0.0.1
          4⤵
          • Runs ping.exe
          PID:5220
    • C:\Users\Admin\AppData\Local\Temp\HD_ab14f61b88e3516f7b7595afe9399ff16c918d8a1ef3602223974af92a660ded.exe
      C:\Users\Admin\AppData\Local\Temp\HD_ab14f61b88e3516f7b7595afe9399ff16c918d8a1ef3602223974af92a660ded.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Modifies Internet Explorer settings
      • Suspicious use of SetWindowsHookEx
      PID:1352
  • C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
    1⤵
      PID:216
    • 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:4316
      • C:\Windows\SysWOW64\Remote Data.exe
        "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\240642796.txt",MainThread
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:2684
    • C:\Windows\SysWOW64\TXPlatfor.exe
      C:\Windows\SysWOW64\TXPlatfor.exe -auto
      1⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:1792
      • 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:1580
    • 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 --field-trial-handle=4200,i,13035806169561352434,1332896185314862791,262144 --variations-seed-version --mojo-platform-channel-handle=4168 /prefetch:8
      1⤵
        PID:2476

      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 2.4MB
            • SHA256 a33786c2f8521a8fd551d66e99b03d54630097b04086c4d950c8748d8e34afa9
            • MD5 SHA1 SHA512 SSDEEP

            HD_ab14f61b88e3516f7b7595afe9399ff16c918d8a1ef3602223974af92a660ded.exe

            • Path C:\Users\Admin\AppData\Local\Temp\HD_ab14f61b88e3516f7b7595afe9399ff16c918d8a1ef3602223974af92a660ded.exe
            • Size 3.9MB
            • SHA256 8099d16c20ab5292fa745eb7a58632c25baa0f64ef87c1fc6bbf931c42c3962a
            • 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

            240642796.txt

            • Path C:\Windows\SysWOW64\240642796.txt
            • Size 899KB
            • SHA256 a4918c3b81b36f589c1069fbf595186089af3dd8f1f4e42fe14a0bd0c8964db0
            • MD5 SHA1 SHA512 SSDEEP

            Remote Data.exe

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

            memory/1352-13138-0x0000000000400000-0x00000000009F4000-memory.dmp

            memory/1352-13117-0x0000000000400000-0x00000000009F4000-memory.dmp

            memory/1352-13119-0x0000000000400000-0x00000000009F4000-memory.dmp

            memory/1352-13121-0x0000000000400000-0x00000000009F4000-memory.dmp

            memory/1352-13116-0x0000000000400000-0x00000000009F4000-memory.dmp

            memory/1352-42-0x0000000000400000-0x00000000009F4000-memory.dmp

            memory/1352-3922-0x00000000768B0000-0x0000000076A50000-memory.dmp

            memory/1352-13118-0x0000000000400000-0x00000000009F4000-memory.dmp

            memory/1352-5931-0x00000000766D0000-0x000000007674A000-memory.dmp

            memory/1352-47-0x0000000076E50000-0x0000000077065000-memory.dmp

            memory/1580-40-0x0000000010000000-0x00000000101B6000-memory.dmp

            memory/1580-46-0x0000000010000000-0x00000000101B6000-memory.dmp

            memory/1580-45-0x0000000010000000-0x00000000101B6000-memory.dmp

            memory/1792-29-0x0000000010000000-0x00000000101B6000-memory.dmp

            memory/1792-28-0x0000000010000000-0x00000000101B6000-memory.dmp

            memory/1792-26-0x0000000010000000-0x00000000101B6000-memory.dmp

            memory/4092-20-0x0000000010000000-0x00000000101B6000-memory.dmp

            memory/4092-21-0x0000000010000000-0x00000000101B6000-memory.dmp

            memory/4092-17-0x0000000010000000-0x00000000101B6000-memory.dmp

            memory/4092-19-0x0000000010000000-0x00000000101B6000-memory.dmp