Analysis

  • max time kernel
    150s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/08/2023, 21:35

General

  • Target

    a8a2c05606db0b08fd77dfc4fb96728160cd786860deb6d31018825648e9ffae.dll

  • Size

    432KB

  • MD5

    1ec07a06295fbd106998f68f81035292

  • SHA1

    9344788b70d9e4be55aefcf7fc031834463582ef

  • SHA256

    a8a2c05606db0b08fd77dfc4fb96728160cd786860deb6d31018825648e9ffae

  • SHA512

    922bff3a99501c286450982eab6b5375c9b4833c8090f661a1bb93eaa3a6bc6ac60589a2d91bc11e1422c41ef52629502af3980cc02cd28dcaf567fe2d90024f

  • SSDEEP

    12288:kov9YJjrV+pJR6cuXFqaYCL9yKASIAcl3hkWWlyvQO:B+JHVyR6xXky0KASbcdh6yvQO

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
  • 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:624
      • C:\Windows\SysWOW64\svchost.exe
        C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted
        2⤵
        • Enumerates connected drives
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1240
    • C:\Windows\system32\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\a8a2c05606db0b08fd77dfc4fb96728160cd786860deb6d31018825648e9ffae.dll,#1
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:3348
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe C:\Users\Admin\AppData\Local\Temp\a8a2c05606db0b08fd77dfc4fb96728160cd786860deb6d31018825648e9ffae.dll,#1
        2⤵
        • Suspicious use of NtCreateUserProcessOtherParentProcess
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2284

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/1240-1-0x0000000000400000-0x0000000000543000-memory.dmp

            Filesize

            1.3MB

          • memory/1240-3-0x0000000000400000-0x0000000000543000-memory.dmp

            Filesize

            1.3MB

          • memory/1240-2-0x0000000000400000-0x0000000000543000-memory.dmp

            Filesize

            1.3MB

          • memory/1240-7-0x0000000000400000-0x0000000000543000-memory.dmp

            Filesize

            1.3MB

          • memory/1240-8-0x0000000000400000-0x0000000000543000-memory.dmp

            Filesize

            1.3MB

          • memory/1240-9-0x0000000000400000-0x0000000000543000-memory.dmp

            Filesize

            1.3MB

          • memory/1240-10-0x0000000075790000-0x0000000075880000-memory.dmp

            Filesize

            960KB

          • memory/1240-11-0x0000000010000000-0x00000000101A0000-memory.dmp

            Filesize

            1.6MB

          • memory/1240-12-0x0000000010000000-0x00000000101A0000-memory.dmp

            Filesize

            1.6MB

          • memory/1240-28-0x0000000075790000-0x0000000075880000-memory.dmp

            Filesize

            960KB

          • memory/2284-0-0x0000000010000000-0x0000000010089000-memory.dmp

            Filesize

            548KB