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Overview

overview

10

Static

static

10

runtime.exe

windows10-2004-x64

10

win10.exe

windows10-2004-x64

9

Analysis

  • max time kernel
    147s
  • max time network
    165s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/07/2024, 04:59

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General

  • Target

    runtime.exe

  • Size

    73KB

  • MD5

    4fa7b1eec1fc84eb3a13c29e5a37aae7

  • SHA1

    dfff9fceeb4d74d7e82f9f0a65d1889fa0f9e326

  • SHA256

    5f5aa560b9b2d9f7ea3b9a4e05b9b9b35107dc78bd763000fe05f6b3f998f311

  • SHA512

    5e36a5589499a3db56d78de1b66a9ee57a2972bc57bf4b915df9118fd2a584c74ba00c61531d922431b72e87f9c53585c4c1a78a2aba122a22ea5e3603aa06ba

  • SSDEEP

    1536:KIUme0cxdlOH4PAI7Bn3h36rAi8EjZUPMwC/eqmmRhdWVH1bfbfPmjmwzUYbVclN:KIUm3cxdlOH4YI7Bn3h36rAi8EVUPMwv

Score
10/10
asyncratdefaultrat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.2

Botnet

Default

C2

72.5.43.15:4449

Mutex

yezcydjwbxouz

Attributes
  • delay

    1

  • install

    true

  • install_file

    win.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 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\runtime.exe
    "C:\Users\Admin\AppData\Local\Temp\runtime.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1216
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "win" /tr '"C:\Users\Admin\AppData\Roaming\win.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4104
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "win" /tr '"C:\Users\Admin\AppData\Roaming\win.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:2796
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpEB3B.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1456
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:1812
      • C:\Users\Admin\AppData\Roaming\win.exe
        "C:\Users\Admin\AppData\Roaming\win.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:4620

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpEB3B.tmp.bat
    Filesize

    147B

    MD5

    cf2d9d67c6eeb041eaa7568b77d9c41d

    SHA1

    8aa951c5647dea24bd32984e42cc724304bfa306

    SHA256

    a1d9962827628e7ee0a2d1760e878fd35856c8b452972d2aef01069a814c3241

    SHA512

    72471698a04879f213eea24db5d07034b94c86f040c95a824c50f351c6fb4040ebae18a99751458fdb21ae64a3290abe87cec7eb480b7d5c358ae9622317c5bc

    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\win.exe
    Filesize

    73KB

    MD5

    4fa7b1eec1fc84eb3a13c29e5a37aae7

    SHA1

    dfff9fceeb4d74d7e82f9f0a65d1889fa0f9e326

    SHA256

    5f5aa560b9b2d9f7ea3b9a4e05b9b9b35107dc78bd763000fe05f6b3f998f311

    SHA512

    5e36a5589499a3db56d78de1b66a9ee57a2972bc57bf4b915df9118fd2a584c74ba00c61531d922431b72e87f9c53585c4c1a78a2aba122a22ea5e3603aa06ba

    Download Submit

  • memory/1216-0-0x00007FF9462A3000-0x00007FF9462A5000-memory.dmp

    Filesize

    8KB

    Download

  • memory/1216-1-0x0000000000DE0000-0x0000000000DF8000-memory.dmp

    Filesize

    96KB

    Download

  • memory/1216-3-0x00007FF9462A0000-0x00007FF946D61000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/1216-8-0x00007FF9462A0000-0x00007FF946D61000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/1216-9-0x00007FF9462A0000-0x00007FF946D61000-memory.dmp

    Filesize

    10.8MB

    Download