Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    04-10-2024 23:31

General

  • Target

    ad320647b7cedddf918daaff0fca18e4cc92493d82c21062cd0acff66ad1e0deN.exe

  • Size

    74KB

  • MD5

    e5ebd0b94853ac7c6d8f2f1e755e6200

  • SHA1

    7723a709bcd5d593b8a26c64995189536e8f4f27

  • SHA256

    ad320647b7cedddf918daaff0fca18e4cc92493d82c21062cd0acff66ad1e0de

  • SHA512

    0ab193eed655acee210a0f9992d676508695aa76442e5b6bc9e68301cd9524f878d1832243af8a816311ba8922af284b80b395d0c32ea0825222bcc112c25c23

  • SSDEEP

    1536:NUxQcxI76jCsGPMVee9VdQuDI6H1bf/2DzIQzcCLVclN:NUOcxI7q3GPMVee9VdQsH1bf88QTBY

Score
10/10

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

C2

147.185.221.21:64638

Mutex

AADWadsafsjbajiawd=-adfsr

Attributes
  • delay

    1

  • install

    true

  • install_file

    Windows Update.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

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

  • VenomRAT 3 IoCs

    Detects VenomRAT.

  • Async RAT payload 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

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

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

  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 15 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.

Processes

  • C:\Users\Admin\AppData\Local\Temp\ad320647b7cedddf918daaff0fca18e4cc92493d82c21062cd0acff66ad1e0deN.exe
    "C:\Users\Admin\AppData\Local\Temp\ad320647b7cedddf918daaff0fca18e4cc92493d82c21062cd0acff66ad1e0deN.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2420
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Windows Update" /tr '"C:\Users\Admin\AppData\Roaming\Windows Update.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2120
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "Windows Update" /tr '"C:\Users\Admin\AppData\Roaming\Windows Update.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:2712
    • C:\Windows\system32\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpAB2D.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1712
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:2344
      • C:\Users\Admin\AppData\Roaming\Windows Update.exe
        "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2808

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpAB2D.tmp.bat

    Filesize

    158B

    MD5

    3eb24ffc0ca484288c0bed841e738df2

    SHA1

    25d83cc80dd763668607b98b502acd499c23efd0

    SHA256

    603bd5a4225dd66eecf694ab4fd096e271f694dfbe8429273bf52bda1916838c

    SHA512

    93b4e010556e3bbe94cee45c48fdf4c152f4b514561816afe815b54a307ba2506c0b44bed5cb8931a6c1f5381014fbc457b729cd57c3dabaa34155cf4f12be46

  • C:\Users\Admin\AppData\Roaming\MyData\DataLogs.conf

    Filesize

    8B

    MD5

    cf759e4c5f14fe3eec41b87ed756cea8

    SHA1

    c27c796bb3c2fac929359563676f4ba1ffada1f5

    SHA256

    c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761

    SHA512

    c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b

  • C:\Users\Admin\AppData\Roaming\Windows Update.exe

    Filesize

    74KB

    MD5

    e5ebd0b94853ac7c6d8f2f1e755e6200

    SHA1

    7723a709bcd5d593b8a26c64995189536e8f4f27

    SHA256

    ad320647b7cedddf918daaff0fca18e4cc92493d82c21062cd0acff66ad1e0de

    SHA512

    0ab193eed655acee210a0f9992d676508695aa76442e5b6bc9e68301cd9524f878d1832243af8a816311ba8922af284b80b395d0c32ea0825222bcc112c25c23

  • memory/2420-0-0x000007FEF5283000-0x000007FEF5284000-memory.dmp

    Filesize

    4KB

  • memory/2420-1-0x00000000003A0000-0x00000000003B8000-memory.dmp

    Filesize

    96KB

  • memory/2420-3-0x000007FEF5280000-0x000007FEF5C6C000-memory.dmp

    Filesize

    9.9MB

  • memory/2420-11-0x000007FEF5280000-0x000007FEF5C6C000-memory.dmp

    Filesize

    9.9MB

  • memory/2420-14-0x000007FEF5280000-0x000007FEF5C6C000-memory.dmp

    Filesize

    9.9MB

  • memory/2808-18-0x00000000001B0000-0x00000000001C8000-memory.dmp

    Filesize

    96KB