Analysis

  • max time kernel
    150s
  • max time network
    137s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    18-08-2024 18:52

General

  • Target

    8d27369ffa8b29d561fa9daf485be14d2fc00287bb1c69d4c84d514891c8db5e.exe

  • Size

    74KB

  • MD5

    0dfa83a82f6418c73406d78296de61be

  • SHA1

    dd7eceef8a434c43e0751e180bf714e08771d336

  • SHA256

    8d27369ffa8b29d561fa9daf485be14d2fc00287bb1c69d4c84d514891c8db5e

  • SHA512

    9a4b026250b18c29ab7dd48203f321c2ef2f12695bd2dcb52ebbc15001c8ddf019d5a7e04da056c50c1881ce269d1810259bf6d04b61f471e8751b7192fc73d4

  • SSDEEP

    1536:dU40cxhzjBCViPMVSe9VdQuDI6H1bf/6hQzceLVclN:dU1cxhzVCiPMVSe9VdQsH1bfoQ3BY

Score
10/10

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

C2

185.252.232.158:7812

64.23.232.116:7812

Mutex

vsvf

Attributes
  • delay

    1

  • install

    true

  • install_file

    Windows Security Health Service.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 64 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\8d27369ffa8b29d561fa9daf485be14d2fc00287bb1c69d4c84d514891c8db5e.exe
    "C:\Users\Admin\AppData\Local\Temp\8d27369ffa8b29d561fa9daf485be14d2fc00287bb1c69d4c84d514891c8db5e.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1688
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Windows Security Health Service" /tr '"C:\Users\Admin\AppData\Roaming\Windows Security Health Service.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1988
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "Windows Security Health Service" /tr '"C:\Users\Admin\AppData\Roaming\Windows Security Health Service.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:2500
    • C:\Windows\system32\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpBE50.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2196
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:1048
      • C:\Users\Admin\AppData\Roaming\Windows Security Health Service.exe
        "C:\Users\Admin\AppData\Roaming\Windows Security Health Service.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2848

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpBE50.tmp.bat

    Filesize

    175B

    MD5

    51eea395a7cb326eda719f15c194b912

    SHA1

    b29131931f5f695c5b42ba8ea4f6dc5b594f1194

    SHA256

    4787f403937089a699274b26573cec11087490d41507d6dfb5badff25d04fb9d

    SHA512

    6a4bb8ee3e7b1e39dd08648e9907296ff864fb82ae43256c386919e531170994e1893239af23fff93084197392367a98b1c7c7aa4a9ae0c67358f952fb727ad9

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

    Filesize

    8B

    MD5

    cf759e4c5f14fe3eec41b87ed756cea8

    SHA1

    c27c796bb3c2fac929359563676f4ba1ffada1f5

    SHA256

    c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761

    SHA512

    c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b

  • C:\Users\Admin\AppData\Roaming\Windows Security Health Service.exe

    Filesize

    74KB

    MD5

    0dfa83a82f6418c73406d78296de61be

    SHA1

    dd7eceef8a434c43e0751e180bf714e08771d336

    SHA256

    8d27369ffa8b29d561fa9daf485be14d2fc00287bb1c69d4c84d514891c8db5e

    SHA512

    9a4b026250b18c29ab7dd48203f321c2ef2f12695bd2dcb52ebbc15001c8ddf019d5a7e04da056c50c1881ce269d1810259bf6d04b61f471e8751b7192fc73d4

  • memory/1688-0-0x000007FEF5E93000-0x000007FEF5E94000-memory.dmp

    Filesize

    4KB

  • memory/1688-1-0x0000000000E30000-0x0000000000E48000-memory.dmp

    Filesize

    96KB

  • memory/1688-3-0x000007FEF5E90000-0x000007FEF687C000-memory.dmp

    Filesize

    9.9MB

  • memory/1688-12-0x000007FEF5E90000-0x000007FEF687C000-memory.dmp

    Filesize

    9.9MB

  • memory/1688-13-0x000007FEF5E90000-0x000007FEF687C000-memory.dmp

    Filesize

    9.9MB

  • memory/2848-18-0x00000000009D0000-0x00000000009E8000-memory.dmp

    Filesize

    96KB