Analysis

  • max time kernel
    150s
  • max time network
    127s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-08-2024 05:42

General

  • Target

    bb934ad580f6b6c8f3c04c4e453fba332628b0305086d041db1bb796fad9e546.dll

  • Size

    437KB

  • MD5

    503818c68a6715a810c7f451a9a499ae

  • SHA1

    ec905e5a0c80b47493ea9752483e322e663f6ae8

  • SHA256

    bb934ad580f6b6c8f3c04c4e453fba332628b0305086d041db1bb796fad9e546

  • SHA512

    f0a80602e6ac955ff663c31a8ed5c0101aea6514b57c5138d566ed925998a6e58513604202d8a36a1cc45b5ea5464ad0507fdcaff83f4eeff849670eea54b699

  • SSDEEP

    6144:bas0ZLc/IJvCklIqA8mvHwgnHJp9OWqw7zsK0bencTpX4KtjY5Jt/lt0zwzOu6W8:gBFJqk2q1g5ppemr0bAKoNfnQCSWpoSm

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 4 IoCs
  • UPX packed file 7 IoCs

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

  • Enumerates connected drives 3 TTPs 44 IoCs

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

  • Suspicious use of SetThreadContext 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 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 4 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 12 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Windows\system32\winlogon.exe
    winlogon.exe
    1⤵
      PID:616
      • 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:4908
      • C:\Windows\SysWOW64\svchost.exe
        C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted
        2⤵
          PID:1084
        • C:\Windows\SysWOW64\svchost.exe
          C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted
          2⤵
            PID:1536
          • 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
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:32
        • C:\Windows\system32\rundll32.exe
          rundll32.exe C:\Users\Admin\AppData\Local\Temp\bb934ad580f6b6c8f3c04c4e453fba332628b0305086d041db1bb796fad9e546.dll,#1
          1⤵
          • Suspicious use of WriteProcessMemory
          PID:4892
          • C:\Windows\SysWOW64\rundll32.exe
            rundll32.exe C:\Users\Admin\AppData\Local\Temp\bb934ad580f6b6c8f3c04c4e453fba332628b0305086d041db1bb796fad9e546.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:3504
        • 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 --field-trial-handle=4288,i,12470628711992022444,7767535593390851522,262144 --variations-seed-version --mojo-platform-channel-handle=1432 /prefetch:8
          1⤵
            PID:4188

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/32-21-0x0000000075610000-0x0000000075700000-memory.dmp

            Filesize

            960KB

          • memory/32-24-0x0000000010000000-0x00000000101A0000-memory.dmp

            Filesize

            1.6MB

          • memory/32-54-0x0000000075610000-0x0000000075700000-memory.dmp

            Filesize

            960KB

          • memory/3504-0-0x0000000010000000-0x00000000100A6000-memory.dmp

            Filesize

            664KB

          • memory/4908-1-0x0000000000400000-0x0000000000543000-memory.dmp

            Filesize

            1.3MB

          • memory/4908-3-0x0000000000400000-0x0000000000543000-memory.dmp

            Filesize

            1.3MB

          • memory/4908-11-0x0000000075633000-0x0000000075634000-memory.dmp

            Filesize

            4KB

          • memory/4908-9-0x0000000000400000-0x0000000000543000-memory.dmp

            Filesize

            1.3MB

          • memory/4908-8-0x0000000000400000-0x0000000000543000-memory.dmp

            Filesize

            1.3MB

          • memory/4908-2-0x0000000000400000-0x0000000000543000-memory.dmp

            Filesize

            1.3MB

          • memory/4908-7-0x0000000000400000-0x0000000000543000-memory.dmp

            Filesize

            1.3MB

          • memory/4908-22-0x0000000010000000-0x00000000101A0000-memory.dmp

            Filesize

            1.6MB