Overview

overview

10

Static

static

10

cryptolaemus

windows10-2004-x64

10

cryptolaemus

windows11-21h2-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-08-2024 11:58

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General

  • Target

    408c4cb78449baf846592637c9a8f03f47c3df6786acdce6e9ad0ef0db370068.exe

  • Size

    74KB

  • MD5

    415479c03f59ed169402224d1bf7a158

  • SHA1

    3306a80290079a971df35eb037dd900865ccad0f

  • SHA256

    408c4cb78449baf846592637c9a8f03f47c3df6786acdce6e9ad0ef0db370068

  • SHA512

    4db90ce9f90100c7e9b7c637b6c1b8615d2cdaaf8e043d03bd1801069abdd457403e01cbf3f97d452128d68267d95c09e3105062f4ea47dd4997d45e504eaa9c

  • SSDEEP

    1536:zUt8cxqnHXC56PMV953pIZlyH1bo/MDT0Mz5QzckTtVclN:zUOcxq3O6PMV3slyH1bo0DT0Mz5QhT/Y

Score
10/10
asyncratrat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Mutex

rufrwqqzhtx

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
  • 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\408c4cb78449baf846592637c9a8f03f47c3df6786acdce6e9ad0ef0db370068.exe
    "C:\Users\Admin\AppData\Local\Temp\408c4cb78449baf846592637c9a8f03f47c3df6786acdce6e9ad0ef0db370068.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3236
    • 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:2368
      • 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:3348
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpA662.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1920
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:3128
      • 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:3448

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpA662.tmp.bat
    Filesize

    153B

    MD5

    0e45d70416670226fd6223d6e772a6b6

    SHA1

    165c131ad1994f55bb218649c9760dfa5db56061

    SHA256

    580ba5556a3a8228640ec591d874fcfb20eb6d20afd726809b2a87bdc1d928ee

    SHA512

    f2d1aca31b9eb64787768f0bc945a997aece3330f34ba977e879864729dd5eb30493036e254fead79b67de77f59e62e6fe2598661f90be3eea07459917b4b423

    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

    74KB

    MD5

    415479c03f59ed169402224d1bf7a158

    SHA1

    3306a80290079a971df35eb037dd900865ccad0f

    SHA256

    408c4cb78449baf846592637c9a8f03f47c3df6786acdce6e9ad0ef0db370068

    SHA512

    4db90ce9f90100c7e9b7c637b6c1b8615d2cdaaf8e043d03bd1801069abdd457403e01cbf3f97d452128d68267d95c09e3105062f4ea47dd4997d45e504eaa9c

    Download Submit

  • memory/3236-0-0x00007FFF9EEC3000-0x00007FFF9EEC5000-memory.dmp

    Filesize

    8KB

    Download

  • memory/3236-1-0x0000000000610000-0x0000000000628000-memory.dmp

    Filesize

    96KB

    Download

  • memory/3236-3-0x00007FFF9EEC0000-0x00007FFF9F981000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/3236-8-0x00007FFF9EEC0000-0x00007FFF9F981000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/3236-9-0x00007FFF9EEC0000-0x00007FFF9F981000-memory.dmp

    Filesize

    10.8MB

    Download