Overview

overview

10

Static

static

10

Client.exe

windows10-ltsc 2021-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    143s
  • platform
    windows10-ltsc 2021_x64
  • resource
    win10ltsc2021-20250113-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20250113-enlocale:en-usos:windows10-ltsc 2021-x64system
  • submitted
    15/01/2025, 21:55

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General

  • Target

    Client.exe

  • Size

    74KB

  • MD5

    d458b10aa812f6f4fb248d8d0ef43b26

  • SHA1

    c46d9d73c401305ca607235fb07f65200c60a2ae

  • SHA256

    0d27c3fd2bd9a18177a99dd071cf55908298120370fd0ef4e102c3ddeea9169a

  • SHA512

    c3f2a3b314ed63c020ccda448e96103bd3180fe8da312e1f9991403a0c2609860027b6524ceeacece5e994f833f53e3b97bc32e766f9070f6cc118b78ec6fc46

  • SSDEEP

    1536:uUme0cxFVTuCGbPMVOe9VdQuDI6H1bf/bC/mnQzco6VclN:uUm3cxFVaBbPMVOe9VdQsH1bfTOwQxIY

Score
10/10
asyncratdefaultrat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

C2

52.12.198.198:19843

Mutex

eseqxvtccykdt

Attributes
  • delay

    1

  • install

    true

  • install_file

    idk.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

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

    ratasyncrat
  • Asyncrat family
    asyncrat
  • 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
  • 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 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 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\Client.exe
    "C:\Users\Admin\AppData\Local\Temp\Client.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3900
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "idk" /tr '"C:\Users\Admin\AppData\Roaming\idk.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2448
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "idk" /tr '"C:\Users\Admin\AppData\Roaming\idk.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:2688
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp691A.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1464
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:4692
      • C:\Users\Admin\AppData\Roaming\idk.exe
        "C:\Users\Admin\AppData\Roaming\idk.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2700

Network

MITRE ATT&CK Enterprise v15

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp691A.tmp.bat
    Filesize

    147B

    MD5

    d7159efa0dd3ffe5a585df078014aa98

    SHA1

    b27f05b5211e32dd7f5a3331b50cc9b751ea0c3f

    SHA256

    5e28e9e8ecffb038b4e97fac674bf7f9a01a21848d121de72a5e1e58f10f275c

    SHA512

    8f5d223ef3b674cfd67d7b17a287b35b7bb6eee0284925aeac08d4002370794e7d7e4792f377776da99245125981d9361f42d99ce1fdf91b72e30e2b1c431ac8

    Download Submit

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

    8B

    MD5

    cf759e4c5f14fe3eec41b87ed756cea8

    SHA1

    c27c796bb3c2fac929359563676f4ba1ffada1f5

    SHA256

    c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761

    SHA512

    c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b

    Download Submit

  • C:\Users\Admin\AppData\Roaming\idk.exe
    Filesize

    74KB

    MD5

    d458b10aa812f6f4fb248d8d0ef43b26

    SHA1

    c46d9d73c401305ca607235fb07f65200c60a2ae

    SHA256

    0d27c3fd2bd9a18177a99dd071cf55908298120370fd0ef4e102c3ddeea9169a

    SHA512

    c3f2a3b314ed63c020ccda448e96103bd3180fe8da312e1f9991403a0c2609860027b6524ceeacece5e994f833f53e3b97bc32e766f9070f6cc118b78ec6fc46

    Download Submit

  • memory/3900-0-0x00007FFF21823000-0x00007FFF21825000-memory.dmp

    Filesize

    8KB

    Download

  • memory/3900-1-0x0000000000790000-0x00000000007A8000-memory.dmp

    Filesize

    96KB

    Download

  • memory/3900-3-0x00007FFF21820000-0x00007FFF222E2000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/3900-4-0x00007FFF21820000-0x00007FFF222E2000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/3900-9-0x00007FFF21820000-0x00007FFF222E2000-memory.dmp

    Filesize

    10.8MB

    Download