Overview

overview

10

Static

static

10

ClientAny.exe

windows7-x64

10

ClientAny.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    94s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/06/2024, 17:39

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General

  • Target
    ClientAny.exe
  • Size 90KB
  • Sample240627-v79fvsscmf
  • SHA256 f5958eae1d68011fc17a9fbb2f22c18221c36db1984de47a294e274eb4b62f32
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
asyncratsvchost.exediscoveryrat

Malware Config

Extracted

Family

  • asyncrat

Version

  • Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

  • svchost.exe

C2

  • 127.0.0.1:80

  • 2.58.84.229:80

Mutex

  • svchost.exe

Attributes
  • delay

    1

  • install

    true

  • install_file

    svchost.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

    ratasyncrat
  • Async RAT payload 1 IoCs
    rat
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

    discovery
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Delays execution with timeout.exe 1 IoCs
    evasion
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistenceexecution
  • Suspicious behavior: EnumeratesProcesses 29 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\ClientAny.exe
    "C:\Users\Admin\AppData\Local\Temp\ClientAny.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3216
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1092
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:4812
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp414F.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1088
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:1964
      • C:\Users\Admin\AppData\Roaming\svchost.exe
        "C:\Users\Admin\AppData\Roaming\svchost.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:3776

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        tmp414F.tmp.bat
        • Path C:\Users\Admin\AppData\Local\Temp\tmp414F.tmp.bat
        • Size 151B
        • SHA256 ebd283fbf855416643e2c08fecc11cccefffe1508cdb66e3af07da53d75a1357
        • MD5 SHA1 SHA512
        Submit Download

        DataLogs.conf
        • Path C:\Users\Admin\AppData\Roaming\MyData\DataLogs.conf
        • Size 8B
        • SHA256 c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761
        • MD5 SHA1 SHA512
        Submit Download

        svchost.exe
        • Path C:\Users\Admin\AppData\Roaming\svchost.exe
        • Size 90KB
        • SHA256 f5958eae1d68011fc17a9fbb2f22c18221c36db1984de47a294e274eb4b62f32
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        memory/3216-0-0x0000000000060000-0x000000000007C000-memory.dmp
        Download

        memory/3216-1-0x00007FF816413000-0x00007FF816415000-memory.dmp
        Download

        memory/3216-3-0x00007FF816410000-0x00007FF816ED1000-memory.dmp
        Download

        memory/3216-8-0x00007FF816410000-0x00007FF816ED1000-memory.dmp
        Download

        memory/3216-9-0x00007FF816410000-0x00007FF816ED1000-memory.dmp
        Download