Analysis

  • max time kernel
    150s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240419-en
  • resource tags

    arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
  • submitted
    24-05-2024 08:40

General

  • Target

    98fb377635519a8c8a1c21fb6fc4d52a71094f9b0978b13e4077a1fa74ca4e55.exe

  • Size

    6.7MB

  • MD5

    ea486332b7fce62e89fd044346e5a843

  • SHA1

    9d4c32b53786fafa8705336ee7db5019ae4ce6c5

  • SHA256

    98fb377635519a8c8a1c21fb6fc4d52a71094f9b0978b13e4077a1fa74ca4e55

  • SHA512

    90bcec401691248c27b4562d15ebb0bc9114d9c1b86131800ac11fc5ca0ca24125a2aae96c3f105d19b136beeb22d6ca72d45d0058599eb7c7e4435f322c47e2

  • SSDEEP

    98304:lws2ANnKXOaeOgmhOFNWq1L39q9+uFOgaJzcYcv:PKXbeO7opL3MeJzcYG

Malware Config

Signatures

  • Detect PurpleFox Rootkit 5 IoCs

    Detect PurpleFox Rootkit.

  • Gh0st RAT payload 6 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 10 IoCs
  • UPX packed file 29 IoCs

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

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Drops file in System32 directory 9 IoCs
  • Modifies registry class 35 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 48 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\98fb377635519a8c8a1c21fb6fc4d52a71094f9b0978b13e4077a1fa74ca4e55.exe
    "C:\Users\Admin\AppData\Local\Temp\98fb377635519a8c8a1c21fb6fc4d52a71094f9b0978b13e4077a1fa74ca4e55.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1600
    • 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:1628
    • 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:2968
      • 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:2628
        • C:\Windows\SysWOW64\PING.EXE
          ping -n 2 127.0.0.1
          4⤵
          • Runs ping.exe
          PID:2492
    • C:\Users\Admin\AppData\Local\Temp\HD_98fb377635519a8c8a1c21fb6fc4d52a71094f9b0978b13e4077a1fa74ca4e55.exe
      C:\Users\Admin\AppData\Local\Temp\HD_98fb377635519a8c8a1c21fb6fc4d52a71094f9b0978b13e4077a1fa74ca4e55.exe
      2⤵
      • Executes dropped EXE
      • Writes to the Master Boot Record (MBR)
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2508
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32 atl.dll /s
        3⤵
          PID:2776
        • C:\Windows\SysWOW64\regsvr32.exe
          regsvr32 C:\wckzbin\lw.dll /s
          3⤵
          • Loads dropped DLL
          • Drops file in System32 directory
          • Modifies registry class
          • Suspicious use of AdjustPrivilegeToken
          PID:1648
    • C:\Windows\SysWOW64\svchost.exe
      C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
      1⤵
        PID:3020
      • 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:1836
        • C:\Windows\SysWOW64\Remote Data.exe
          "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\259393579.txt",MainThread
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1932
      • C:\Windows\SysWOW64\TXPlatfor.exe
        C:\Windows\SysWOW64\TXPlatfor.exe -auto
        1⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:2688
        • 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:2612

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\HD_X.dat

        Filesize

        2.3MB

        MD5

        4b2b7bf444c80cf0db7a5a72b08210ab

        SHA1

        7e5240617012fde3c7fdb84b8995f5be212adc41

        SHA256

        015e21e51ae4fb1c593416e9f0bf8f5363d162f8a86487c500252fdd63fad48c

        SHA512

        47c7bf262136e4f9e60bdb0c4f382e472b3e4dafdbdc70bf35a75600054d98bdfca0f914e16b835f7f2ed5776114d9143148cb4df9daa9ba642435d14cbb92cc

      • \Users\Admin\AppData\Local\Temp\HD_98fb377635519a8c8a1c21fb6fc4d52a71094f9b0978b13e4077a1fa74ca4e55.exe

        Filesize

        4.3MB

        MD5

        546c2a95505f3d40a8b4806995ff1cff

        SHA1

        9a0736bc02072979a3cf809b645ad3d86a0ff546

        SHA256

        7ffb2fd98018aa929b7f05c1f42244801f4e6a64d39d4bca0ac02e02b1345ac7

        SHA512

        4ffe1ecfc6384659db63d16a5096d69e3d4c482959252b1fec8354c94b928f26420dac8b06fd6864899258cf137af5f09b4760155c528c53ab27b4b732edb8eb

      • \Users\Admin\AppData\Local\Temp\N.exe

        Filesize

        377KB

        MD5

        4a36a48e58829c22381572b2040b6fe0

        SHA1

        f09d30e44ff7e3f20a5de307720f3ad148c6143b

        SHA256

        3de6c02f52a661b8f934f59541d0cf297bb489eb2155e346b63c7338e09aeaf8

        SHA512

        5d0ea398792f6b9eb3f188813c50b7f43929183b5733d2b595b2fd1c78722764fd15f62db1086b5c7edfb157661a6dcd544ddd80907ee7699dddbca1ef4022d0

      • \Users\Admin\AppData\Local\Temp\R.exe

        Filesize

        941KB

        MD5

        8dc3adf1c490211971c1e2325f1424d2

        SHA1

        4eec4a4e7cb97c5efa6c72e0731cd090c0c4adc5

        SHA256

        bc29f2022ab3b812e50c8681ff196f090c038b5ab51e37daffac4469a8c2eb2c

        SHA512

        ae92ea20b359849dcdba4808119b154e3af5ef3687ee09de1797610fe8c4d3eb9065b068074d35adddb4b225d17c619baff3944cb137ad196bcef7a6507f920d

      • \Windows\SysWOW64\259393579.txt

        Filesize

        899KB

        MD5

        029a35fb7f6bae4c928891441b68b17f

        SHA1

        95091314971e2f90ca9e6877ecd5178c7652d15b

        SHA256

        f3b1a7f5c92caef31ebaba9fe1483565a8ca9fc6fc2cc182065e16f066c29324

        SHA512

        d972201d284049ca2385a10fbf21142c6f1be7d1a625f4c590f6c490d6f8dbb176aa4edad015b3366c1aeb62ec2d78aa946b54b3cf0dc9bd96a9d1eb6ae3629e

      • \Windows\SysWOW64\Remote Data.exe

        Filesize

        43KB

        MD5

        51138beea3e2c21ec44d0932c71762a8

        SHA1

        8939cf35447b22dd2c6e6f443446acc1bf986d58

        SHA256

        5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

        SHA512

        794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

      • \wckzbin\lw.dll

        Filesize

        2.3MB

        MD5

        6243424f02cfbfd9c0c0aa11024313e7

        SHA1

        1dc62d1f1d61dbc999509d814960253e96d5609f

        SHA256

        2a3591dfb8c7ece870bfabb6591f620ce030944ddc4208564014630a7adb00a2

        SHA512

        4d31b73405fd6e0c1c0b5376399b3d1e9e1a862d78947fda1e68407722f8028837d9477dc9d4f34df80b93d79dbf1d5b4134104fc2b476bbde66842a9060e522

      • memory/2508-64-0x0000000010000000-0x000000001003E000-memory.dmp

        Filesize

        248KB

      • memory/2508-74-0x0000000010000000-0x000000001003E000-memory.dmp

        Filesize

        248KB

      • memory/2508-51-0x0000000010000000-0x000000001003E000-memory.dmp

        Filesize

        248KB

      • memory/2508-86-0x0000000010000000-0x000000001003E000-memory.dmp

        Filesize

        248KB

      • memory/2508-94-0x0000000010000000-0x000000001003E000-memory.dmp

        Filesize

        248KB

      • memory/2508-92-0x0000000010000000-0x000000001003E000-memory.dmp

        Filesize

        248KB

      • memory/2508-90-0x0000000010000000-0x000000001003E000-memory.dmp

        Filesize

        248KB

      • memory/2508-88-0x0000000010000000-0x000000001003E000-memory.dmp

        Filesize

        248KB

      • memory/2508-84-0x0000000010000000-0x000000001003E000-memory.dmp

        Filesize

        248KB

      • memory/2508-82-0x0000000010000000-0x000000001003E000-memory.dmp

        Filesize

        248KB

      • memory/2508-53-0x0000000010000000-0x000000001003E000-memory.dmp

        Filesize

        248KB

      • memory/2508-54-0x0000000010000000-0x000000001003E000-memory.dmp

        Filesize

        248KB

      • memory/2508-80-0x0000000010000000-0x000000001003E000-memory.dmp

        Filesize

        248KB

      • memory/2508-78-0x0000000010000000-0x000000001003E000-memory.dmp

        Filesize

        248KB

      • memory/2508-76-0x0000000010000000-0x000000001003E000-memory.dmp

        Filesize

        248KB

      • memory/2508-56-0x0000000010000000-0x000000001003E000-memory.dmp

        Filesize

        248KB

      • memory/2508-72-0x0000000010000000-0x000000001003E000-memory.dmp

        Filesize

        248KB

      • memory/2508-70-0x0000000010000000-0x000000001003E000-memory.dmp

        Filesize

        248KB

      • memory/2508-68-0x0000000010000000-0x000000001003E000-memory.dmp

        Filesize

        248KB

      • memory/2508-66-0x0000000010000000-0x000000001003E000-memory.dmp

        Filesize

        248KB

      • memory/2508-58-0x0000000010000000-0x000000001003E000-memory.dmp

        Filesize

        248KB

      • memory/2508-62-0x0000000010000000-0x000000001003E000-memory.dmp

        Filesize

        248KB

      • memory/2508-60-0x0000000010000000-0x000000001003E000-memory.dmp

        Filesize

        248KB

      • memory/2612-50-0x0000000010000000-0x00000000101B6000-memory.dmp

        Filesize

        1.7MB

      • memory/2612-96-0x0000000010000000-0x00000000101B6000-memory.dmp

        Filesize

        1.7MB

      • memory/2612-42-0x0000000010000000-0x00000000101B6000-memory.dmp

        Filesize

        1.7MB

      • memory/2968-21-0x0000000010000000-0x00000000101B6000-memory.dmp

        Filesize

        1.7MB

      • memory/2968-20-0x0000000010000000-0x00000000101B6000-memory.dmp

        Filesize

        1.7MB

      • memory/2968-18-0x0000000010000000-0x00000000101B6000-memory.dmp

        Filesize

        1.7MB