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Overview

overview

10

Static

static

10

cbf37235e3...fd.exe

windows7-x64

10

cbf37235e3...fd.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    131s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/08/2024, 02:24

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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
  • 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 28 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:4492
    • 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:5076
      • 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:1608
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpBB51.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:540
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:4500
      • 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:320

Network

MITRE ATT&CK Enterprise v15

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpBB51.tmp.bat
    Filesize

    150B

    MD5

    feb0ce82ab2549a7843d7e5d1d418d11

    SHA1

    7cd1bbb4143ef79ac50bf7033bebf8f54b54058a

    SHA256

    4ee7ab24a3c452f8b100e7f8a09c5fe75f816841c04ec3a9f7f3324642bd6f29

    SHA512

    a930083a0e753bb73c17b454fc0a6e2bceabdabfaf8192c1da9855b1fa75dfb9cb1ea1b9d1428afadea614daecf0a52533e215f680882259b215d00d8ff20fdf

    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/4492-0-0x0000000000EC0000-0x0000000000EEA000-memory.dmp

    Filesize

    168KB

    Download

  • memory/4492-1-0x00007FF9B78D3000-0x00007FF9B78D5000-memory.dmp

    Filesize

    8KB

    Download

  • memory/4492-3-0x00007FF9B78D0000-0x00007FF9B8391000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/4492-8-0x00007FF9B78D0000-0x00007FF9B8391000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/4492-10-0x00007FF9B78D0000-0x00007FF9B8391000-memory.dmp

    Filesize

    10.8MB

    Download