Analysis

  • max time kernel
    150s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    04-10-2024 08:11

General

  • Target

    85a2551c9c9c529a0520f0e969820b4f814cc623a53e3d272d8c8a813ca39b1c.dll

  • Size

    437KB

  • MD5

    690385dc17c6d7e54bb0af46e0011bf1

  • SHA1

    d483cf68285504ed9f05614ef1b545f779afb252

  • SHA256

    85a2551c9c9c529a0520f0e969820b4f814cc623a53e3d272d8c8a813ca39b1c

  • SHA512

    cf7daedd0a67d3ad2d01618aadf3f2f0e45518cb66c93ccc04a6adc7fc4db134042829cba9cb540218b933ccfe8c252fff44462db57fbe7e22dbad52a7b7eaec

  • SSDEEP

    6144:bas0ZLc/IJvCklIqA8mvHwgnHJp9OWqw7zsK0bencTpX4KtjY5Jt/lt0zwzOu6We:gBFJqk2q1g5ppemr0bAKoNfnQCSWpoSE

Malware Config

Signatures

  • Detect PurpleFox Rootkit 3 IoCs

    Detect PurpleFox Rootkit.

  • Gh0st RAT payload 3 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.

  • Suspicious use of NtCreateUserProcessOtherParentProcess 2 IoCs
  • Enumerates connected drives 3 TTPs 22 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Suspicious use of SetThreadContext 1 IoCs
  • UPX packed file 11 IoCs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies data under HKEY_USERS 12 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Windows\system32\winlogon.exe
    winlogon.exe
    1⤵
      PID:424
      • C:\Windows\SysWOW64\svchost.exe
        C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted
        2⤵
        • Enumerates connected drives
        • System Location Discovery: System Language Discovery
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2232
      • C:\Windows\SysWOW64\svchost.exe
        C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted
        2⤵
          PID:2288
      • C:\Windows\system32\rundll32.exe
        rundll32.exe C:\Users\Admin\AppData\Local\Temp\85a2551c9c9c529a0520f0e969820b4f814cc623a53e3d272d8c8a813ca39b1c.dll,#1
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:1864
        • C:\Windows\SysWOW64\rundll32.exe
          rundll32.exe C:\Users\Admin\AppData\Local\Temp\85a2551c9c9c529a0520f0e969820b4f814cc623a53e3d272d8c8a813ca39b1c.dll,#1
          2⤵
          • Suspicious use of NtCreateUserProcessOtherParentProcess
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2472

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/2232-19-0x0000000000400000-0x0000000000543000-memory.dmp

        Filesize

        1.3MB

      • memory/2232-4-0x0000000000400000-0x0000000000543000-memory.dmp

        Filesize

        1.3MB

      • memory/2232-39-0x0000000000400000-0x0000000000543000-memory.dmp

        Filesize

        1.3MB

      • memory/2232-24-0x0000000010000000-0x00000000101A0000-memory.dmp

        Filesize

        1.6MB

      • memory/2232-18-0x0000000000400000-0x0000000000543000-memory.dmp

        Filesize

        1.3MB

      • memory/2232-5-0x0000000000400000-0x0000000000543000-memory.dmp

        Filesize

        1.3MB

      • memory/2232-20-0x0000000000400000-0x0000000000543000-memory.dmp

        Filesize

        1.3MB

      • memory/2232-17-0x0000000000400000-0x0000000000543000-memory.dmp

        Filesize

        1.3MB

      • memory/2232-23-0x000000007788E000-0x000000007788F000-memory.dmp

        Filesize

        4KB

      • memory/2232-11-0x0000000000400000-0x0000000000543000-memory.dmp

        Filesize

        1.3MB

      • memory/2232-22-0x0000000010000000-0x00000000101A0000-memory.dmp

        Filesize

        1.6MB

      • memory/2232-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/2232-8-0x0000000000400000-0x0000000000543000-memory.dmp

        Filesize

        1.3MB

      • memory/2472-2-0x0000000010000000-0x00000000100A6000-memory.dmp

        Filesize

        664KB

      • memory/2472-1-0x0000000010000000-0x00000000100A6000-memory.dmp

        Filesize

        664KB

      • memory/2472-0-0x0000000010000000-0x00000000100A6000-memory.dmp

        Filesize

        664KB

      • memory/2472-3-0x0000000010000000-0x00000000100A6000-memory.dmp

        Filesize

        664KB