Overview

overview

10

Static

static

10

Client.exe

windows10-1703-x64

10

Client.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    300s
  • max time network
    264s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    20-05-2024 20:57

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General

  • Target

    Client.exe

  • Size

    74KB

  • MD5

    0732af861863fde1353ff7e91bccaba7

  • SHA1

    f3f862807efb026c226474caabe30a9a264f1389

  • SHA256

    1afd485e974691cc7709993d6d6a768cc0d27878a3831210550f28f2f4eb879f

  • SHA512

    5a7e348745102dd982b19afbb3ff271d99f5342a8335da56cb8636967e7a446f381afc5b7d616c713663366824e973ff291bd0ebe0b14f95305edd77fe9ee92d

  • SSDEEP

    1536:+UZgwcxiKrCfmPMVue9VdQuDI6H1bf/5DVQzcyLVclN:+UZ1cxiaUmPMVue9VdQsH1bfRDVQjBY

Score
10/10
asyncrattestrat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Test

Mutex

bgohjmuoimqavxtbj

Attributes
  • delay

    1

  • install

    true

  • install_file

    Powershell.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).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistence
  • Delays execution with timeout.exe 1 IoCs
    evasion
  • 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\Client.exe
    "C:\Users\Admin\AppData\Local\Temp\Client.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3652
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Powershell" /tr '"C:\Users\Admin\AppData\Roaming\Powershell.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4612
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "Powershell" /tr '"C:\Users\Admin\AppData\Roaming\Powershell.exe"'
        3⤵
        • Creates scheduled task(s)
        PID:800
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp5CE5.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:5112
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:4876
      • C:\Users\Admin\AppData\Roaming\Powershell.exe
        "C:\Users\Admin\AppData\Roaming\Powershell.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:4300

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp5CE5.tmp.bat
    Filesize

    154B

    MD5

    1e6f2ff006b852898c0cc0d472a7f7fd

    SHA1

    446577598f4f24418e3c0abc23e1f7eb73b1ecf6

    SHA256

    b233ce216b74a568ed9fc553434dc338b70ddfea0553b92c06c1be2a3a348ca3

    SHA512

    399f1aecca91e4b50055c72931606895d6f9193ff110a80068f5c169a74cfd0e76c94c160f6812d60bc6576db90f683c977b0c5cb62ee08a0ebbd7de99c9db17

    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\Powershell.exe
    Filesize

    74KB

    MD5

    0732af861863fde1353ff7e91bccaba7

    SHA1

    f3f862807efb026c226474caabe30a9a264f1389

    SHA256

    1afd485e974691cc7709993d6d6a768cc0d27878a3831210550f28f2f4eb879f

    SHA512

    5a7e348745102dd982b19afbb3ff271d99f5342a8335da56cb8636967e7a446f381afc5b7d616c713663366824e973ff291bd0ebe0b14f95305edd77fe9ee92d

    Download Submit

  • memory/3652-0-0x00007FFFA44F3000-0x00007FFFA44F4000-memory.dmp

    Filesize

    4KB

    Download

  • memory/3652-1-0x00000000002B0000-0x00000000002C8000-memory.dmp

    Filesize

    96KB

    Download

  • memory/3652-3-0x00007FFFA44F0000-0x00007FFFA4EDC000-memory.dmp

    Filesize

    9.9MB

    Download

  • memory/3652-4-0x00007FFFA44F0000-0x00007FFFA4EDC000-memory.dmp

    Filesize

    9.9MB

    Download

  • memory/3652-9-0x00007FFFA44F0000-0x00007FFFA4EDC000-memory.dmp

    Filesize

    9.9MB

    Download