Overview

overview

10

Static

static

10

cryptolaemus

windows10-2004-x64

10

cryptolaemus

windows11-21h2-x64

10

Analysis

  • max time kernel
    147s
  • max time network
    94s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240802-en
  • resource tags

    arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    04-08-2024 11:58

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    6475637fff05177a05bf6e84301c09492f21766ea3ba0068f3f70c4d0d886a9e.exe

  • Size

    204KB

  • MD5

    d6c3e22a2d260e9124481f4a82278da5

  • SHA1

    151167da902148943ba8554fab4331d82ec8b150

  • SHA256

    6475637fff05177a05bf6e84301c09492f21766ea3ba0068f3f70c4d0d886a9e

  • SHA512

    11f92b994434c43c0a2393e1347b4b96ad00be36ade16b16860b1fed65d76a7a5d9ef35019092ea37db3f841b66bf5b8ca1187ba84cb63d22d95057439d7b967

  • SSDEEP

    3072:60U2cxq3O6PMV9iFTH1bRGAgxy1QhWwfBtOEp7ybMj/0vU7yZED+CDgbB+Y:xDO6PMVQVbjgxkoW6mEpmbMjgU7yZf8

Score
10/10
asyncratrat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Mutex

server.underground-cheat.xyz

Attributes
  • delay

    1

  • install

    true

  • install_file

    WinUpdate.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
  • 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\6475637fff05177a05bf6e84301c09492f21766ea3ba0068f3f70c4d0d886a9e.exe
    "C:\Users\Admin\AppData\Local\Temp\6475637fff05177a05bf6e84301c09492f21766ea3ba0068f3f70c4d0d886a9e.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4408
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "WinUpdate" /tr '"C:\Users\Admin\AppData\Roaming\WinUpdate.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2796
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "WinUpdate" /tr '"C:\Users\Admin\AppData\Roaming\WinUpdate.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:2184
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpABC1.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3496
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:2244
      • C:\Users\Admin\AppData\Roaming\WinUpdate.exe
        "C:\Users\Admin\AppData\Roaming\WinUpdate.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:5096

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpABC1.tmp.bat
    Filesize

    153B

    MD5

    4c64b0a7d61703b2a5c7cb286c27b785

    SHA1

    06e50828f984992853d9933cb17f06e4b81c9e45

    SHA256

    3d4c742e532b93d37ede0a51e93811b6778a4e989e02653d6d24c58582fdc3c2

    SHA512

    54aa5402ff497dcd6fd39c1800535dc2693535bb3a75639ddc95ac9881b6cc499ebdd61829c3480dfeebc0fe8abee30e963aafef52072adad848e91c61dc7776

    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\WinUpdate.exe
    Filesize

    204KB

    MD5

    d6c3e22a2d260e9124481f4a82278da5

    SHA1

    151167da902148943ba8554fab4331d82ec8b150

    SHA256

    6475637fff05177a05bf6e84301c09492f21766ea3ba0068f3f70c4d0d886a9e

    SHA512

    11f92b994434c43c0a2393e1347b4b96ad00be36ade16b16860b1fed65d76a7a5d9ef35019092ea37db3f841b66bf5b8ca1187ba84cb63d22d95057439d7b967

    Download Submit

  • memory/4408-1-0x0000000000300000-0x0000000000338000-memory.dmp

    Filesize

    224KB

    Download

  • memory/4408-0-0x00007FF80D133000-0x00007FF80D135000-memory.dmp

    Filesize

    8KB

    Download

  • memory/4408-3-0x00007FF80D130000-0x00007FF80DBF2000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/4408-10-0x00007FF80D130000-0x00007FF80DBF2000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/4408-4-0x00007FF80D130000-0x00007FF80DBF2000-memory.dmp

    Filesize

    10.8MB

    Download