Analysis

  • max time kernel
    150s
  • max time network
    136s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    18-08-2024 18:36

General

  • Target

    27d16a4b6970b62bc05c437177605391f7788a3e602e69da9d1375ace81b4ee2.exe

  • Size

    74KB

  • MD5

    c3f58ffd73d3afc5cc08a29dc5a864c8

  • SHA1

    aad0a8c93043e3a4f7c422278c9c02a016ed55b7

  • SHA256

    27d16a4b6970b62bc05c437177605391f7788a3e602e69da9d1375ace81b4ee2

  • SHA512

    4d45d348bbbc2d503eea99c7265e68c6ce87cf8be982ba153c6e8e6c58484476fc4287a91f8cff2eaa3f4ff1de04e02b2b4bcb597326c6963b28967670fc50b7

  • SSDEEP

    1536:EUgQcxI76jCsGPMV19BsmGYIek1bd/VgSQzceLVclN:EUVcxI7q3GPMVz9jk1bd9Q3BY

Score
10/10

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

C2

119.59.98.116:7812

Mutex

WindowsDefendersecurityService

Attributes
  • delay

    1

  • install

    true

  • install_file

    Windows Defender Security 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
  • 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\27d16a4b6970b62bc05c437177605391f7788a3e602e69da9d1375ace81b4ee2.exe
    "C:\Users\Admin\AppData\Local\Temp\27d16a4b6970b62bc05c437177605391f7788a3e602e69da9d1375ace81b4ee2.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2504
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Windows Defender Security Service" /tr '"C:\Users\Admin\AppData\Roaming\Windows Defender Security Service.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2180
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "Windows Defender Security Service" /tr '"C:\Users\Admin\AppData\Roaming\Windows Defender Security Service.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:2700
    • C:\Windows\system32\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp4089.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2040
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:2280
      • C:\Users\Admin\AppData\Roaming\Windows Defender Security Service.exe
        "C:\Users\Admin\AppData\Roaming\Windows Defender Security Service.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2720

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp4089.tmp.bat

    Filesize

    178B

    MD5

    9a7759c4581a938ad04c532050271093

    SHA1

    25f5b8b29927caab59c9ef2977f3eeeda343a012

    SHA256

    69ea1532f70ad1f8a5dd08f9a627f140de30116b1bb22bc02a64b007e090b724

    SHA512

    abe637db3a7fda7366dbd68dbac62332da2b2a4293635f4aec9deb20a15b61db724899473bf3e0720103261ad18a5ab0661c3900acb25f003e84f5874eb75ec8

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

    Filesize

    8B

    MD5

    cf759e4c5f14fe3eec41b87ed756cea8

    SHA1

    c27c796bb3c2fac929359563676f4ba1ffada1f5

    SHA256

    c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761

    SHA512

    c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b

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

    Filesize

    74KB

    MD5

    c3f58ffd73d3afc5cc08a29dc5a864c8

    SHA1

    aad0a8c93043e3a4f7c422278c9c02a016ed55b7

    SHA256

    27d16a4b6970b62bc05c437177605391f7788a3e602e69da9d1375ace81b4ee2

    SHA512

    4d45d348bbbc2d503eea99c7265e68c6ce87cf8be982ba153c6e8e6c58484476fc4287a91f8cff2eaa3f4ff1de04e02b2b4bcb597326c6963b28967670fc50b7

  • memory/2504-0-0x000007FEF6523000-0x000007FEF6524000-memory.dmp

    Filesize

    4KB

  • memory/2504-1-0x0000000000260000-0x0000000000278000-memory.dmp

    Filesize

    96KB

  • memory/2504-3-0x000007FEF6520000-0x000007FEF6F0C000-memory.dmp

    Filesize

    9.9MB

  • memory/2504-11-0x000007FEF6520000-0x000007FEF6F0C000-memory.dmp

    Filesize

    9.9MB

  • memory/2504-13-0x000007FEF6520000-0x000007FEF6F0C000-memory.dmp

    Filesize

    9.9MB

  • memory/2720-18-0x0000000000FE0000-0x0000000000FF8000-memory.dmp

    Filesize

    96KB