Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-09-2024 22:06

General

  • Target

    54bf334fd867ee19dd314ab1e09c083de27a9f0540d6b1a9ac1600e747f8c87d.dll

  • Size

    432KB

  • MD5

    e81bbfa0c23086d9e58bae0ac76ce29a

  • SHA1

    3411e17f95625d951536a6ddd7c0cee885db2fdd

  • SHA256

    54bf334fd867ee19dd314ab1e09c083de27a9f0540d6b1a9ac1600e747f8c87d

  • SHA512

    d22a373b988d9f99aaef07b223d480f11c3cea8ab9c3e15e4f60f371191edf2fe66638b9a52da9bf8b1320d997b6b19631502e907e5cee74612c77cf861b748f

  • SSDEEP

    12288:kov9YJjrV+pJR6cuXFqaYCL9yKASIAcl3hkWWlyvQ+:B+JHVyR6xXky0KASbcdh6yvQ+

Malware Config

Signatures

  • Detect PurpleFox Rootkit 2 IoCs

    Detect PurpleFox Rootkit.

  • Gh0st RAT payload 2 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 1 IoCs
  • UPX packed file 7 IoCs

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

  • 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
  • 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 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Windows\system32\winlogon.exe
    winlogon.exe
    1⤵
      PID:612
      • 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:752
    • C:\Windows\system32\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\54bf334fd867ee19dd314ab1e09c083de27a9f0540d6b1a9ac1600e747f8c87d.dll,#1
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:3620
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe C:\Users\Admin\AppData\Local\Temp\54bf334fd867ee19dd314ab1e09c083de27a9f0540d6b1a9ac1600e747f8c87d.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:5052

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/752-1-0x0000000000400000-0x0000000000543000-memory.dmp

      Filesize

      1.3MB

    • memory/752-9-0x0000000000400000-0x0000000000543000-memory.dmp

      Filesize

      1.3MB

    • memory/752-8-0x0000000000400000-0x0000000000543000-memory.dmp

      Filesize

      1.3MB

    • memory/752-10-0x0000000077013000-0x0000000077014000-memory.dmp

      Filesize

      4KB

    • memory/752-7-0x0000000000400000-0x0000000000543000-memory.dmp

      Filesize

      1.3MB

    • memory/752-3-0x0000000000400000-0x0000000000543000-memory.dmp

      Filesize

      1.3MB

    • memory/752-2-0x0000000000400000-0x0000000000543000-memory.dmp

      Filesize

      1.3MB

    • memory/752-11-0x0000000010000000-0x00000000101A0000-memory.dmp

      Filesize

      1.6MB

    • memory/752-12-0x0000000010000000-0x00000000101A0000-memory.dmp

      Filesize

      1.6MB

    • memory/5052-0-0x0000000010000000-0x0000000010089000-memory.dmp

      Filesize

      548KB