Overview

overview

10

Static

static

10

cbf37235e3...fd.exe

windows7-x64

10

cbf37235e3...fd.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    130s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-08-2024 19:02

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General

  • Target

    cbf37235e35f3823287ffa5adead151873944b9d540ad4c953d29c4f8711d1fd.exe

  • Size

    145KB

  • MD5

    6a4ecf73deebde28f382fcfb5bec6217

  • SHA1

    dd0e386f238500e74d131bda5c206509d5d07687

  • SHA256

    cbf37235e35f3823287ffa5adead151873944b9d540ad4c953d29c4f8711d1fd

  • SHA512

    859e185da74e2f300cc3d7e215c2cc8e3ed56db39a0de28f9589e8743fa8730377ed06d239ea18c10345f7d243b34c5f0f0a468692b2b3f9691a092aa6d38834

  • SSDEEP

    3072:+UOcxHCoeGPMVhYSnu1bhnQIe5BV0WUniyimyJLY:+EeGPMVKiwb9re5v0WURyt

Score
10/10
asyncratdefaultrat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

C2

147.185.221.20:49485

Mutex

geuttmzzyleqrt

Attributes
  • delay

    3

  • install

    true

  • install_file

    msedge.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

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

    ratasyncrat
  • VenomRAT 2 IoCs

    Detects VenomRAT.

    rat
  • 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 30 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\cbf37235e35f3823287ffa5adead151873944b9d540ad4c953d29c4f8711d1fd.exe
    "C:\Users\Admin\AppData\Local\Temp\cbf37235e35f3823287ffa5adead151873944b9d540ad4c953d29c4f8711d1fd.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2224
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "msedge" /tr '"C:\Users\Admin\AppData\Roaming\msedge.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4756
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "msedge" /tr '"C:\Users\Admin\AppData\Roaming\msedge.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:1100
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpC19A.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4964
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:3568
      • C:\Users\Admin\AppData\Roaming\msedge.exe
        "C:\Users\Admin\AppData\Roaming\msedge.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2436

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpC19A.tmp.bat
    Filesize

    150B

    MD5

    9c98b386d225ba86717a6687f2c4cd4c

    SHA1

    f3c1005e9387994642ce0e56bd21bd6cbe7d729d

    SHA256

    57f59ee94085d9b3afe9c7144754d57f36a829665f5a7b3682d4b534e1d0e130

    SHA512

    cd697c7142ac4d1dd6ce7096f818ca9418cec99a8ee6bba7913061ee00940905533b9f7500fb00e5fb127d860b311a4f43cc109cdc319d00ade43d0bfa089c37

    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\msedge.exe
    Filesize

    145KB

    MD5

    6a4ecf73deebde28f382fcfb5bec6217

    SHA1

    dd0e386f238500e74d131bda5c206509d5d07687

    SHA256

    cbf37235e35f3823287ffa5adead151873944b9d540ad4c953d29c4f8711d1fd

    SHA512

    859e185da74e2f300cc3d7e215c2cc8e3ed56db39a0de28f9589e8743fa8730377ed06d239ea18c10345f7d243b34c5f0f0a468692b2b3f9691a092aa6d38834

    Download Submit

  • memory/2224-0-0x00007FF88A013000-0x00007FF88A015000-memory.dmp

    Filesize

    8KB

    Download

  • memory/2224-1-0x0000000000BB0000-0x0000000000BDA000-memory.dmp

    Filesize

    168KB

    Download

  • memory/2224-3-0x00007FF88A010000-0x00007FF88AAD1000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/2224-9-0x00007FF88A010000-0x00007FF88AAD1000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/2224-8-0x00007FF88A010000-0x00007FF88AAD1000-memory.dmp

    Filesize

    10.8MB

    Download