Overview

overview

10

Static

static

10

4fb681131f...d9.exe

windows7-x64

10

4fb681131f...d9.exe

windows10-2004-x64

Analysis

  • max time kernel
    31s
  • max time network
    43s
  • 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 12:07

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Errors

Reason
Machine shutdown
Report Analysis Logs

General

  • Target

    4fb681131f7ac7824c4f0afd337986d9.exe

  • Size

    74KB

  • MD5

    4fb681131f7ac7824c4f0afd337986d9

  • SHA1

    c746978c6c091d94f2bbd17b1ad5954c4306bece

  • SHA256

    cc38fb3ee3227606258b1b9ccba885393d6ed4a54a51aefef30a669cdc171e80

  • SHA512

    b5c2c3f6b5fe4845c0462059d9177b0cf56a36fe528745a9ea7f27120fdf2184b44be4dc5195d9e0d98a5a5987b8bc212707b3b4cc5ada9203db61f9859f3868

  • SSDEEP

    1536:EUo0cxhzjBCViPMVXOS0GIkH1b6/20AuQQzcqLVclN:EUlcxhzVCiPMVOkH1b6+/QbBY

Score
10/10
asyncrat100 rndrat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

100 RND

C2

91.92.243.191:5401

Mutex

6871a79e-e4f7-4fb3-ae38-dc20c1d657a0

Attributes
  • delay

    1

  • install

    true

  • install_file

    hyperhostvc.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\4fb681131f7ac7824c4f0afd337986d9.exe
    "C:\Users\Admin\AppData\Local\Temp\4fb681131f7ac7824c4f0afd337986d9.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4684
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "hyperhostvc" /tr '"C:\Users\Admin\AppData\Roaming\hyperhostvc.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4660
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "hyperhostvc" /tr '"C:\Users\Admin\AppData\Roaming\hyperhostvc.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:4784
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp82AD.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1768
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:848
      • C:\Users\Admin\AppData\Roaming\hyperhostvc.exe
        "C:\Users\Admin\AppData\Roaming\hyperhostvc.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:1028

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp82AD.tmp.bat
    Filesize

    155B

    MD5

    fa88b3e44a7331434236799159b4882f

    SHA1

    1f80fc64af23589495913515e67db7514cd58d6e

    SHA256

    86d708e96fb2f8da49336d3e69cfae23f1a7d72c9c20c9d575f3447ee8156579

    SHA512

    baedf9a4942b13c17ba4f4baa555141f458869f0cd64bfc32f3d2f3ba0982d0b281a9fee1fc8c9c1449c0b70c0c3147250e6de73e2f9ae421198918265a60a9a

    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\hyperhostvc.exe
    Filesize

    74KB

    MD5

    4fb681131f7ac7824c4f0afd337986d9

    SHA1

    c746978c6c091d94f2bbd17b1ad5954c4306bece

    SHA256

    cc38fb3ee3227606258b1b9ccba885393d6ed4a54a51aefef30a669cdc171e80

    SHA512

    b5c2c3f6b5fe4845c0462059d9177b0cf56a36fe528745a9ea7f27120fdf2184b44be4dc5195d9e0d98a5a5987b8bc212707b3b4cc5ada9203db61f9859f3868

    Download Submit

  • memory/4684-0-0x00007FFABC2B3000-0x00007FFABC2B5000-memory.dmp

    Filesize

    8KB

    Download

  • memory/4684-1-0x0000000000B50000-0x0000000000B68000-memory.dmp

    Filesize

    96KB

    Download

  • memory/4684-3-0x00007FFABC2B0000-0x00007FFABCD71000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/4684-8-0x00007FFABC2B0000-0x00007FFABCD71000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/4684-9-0x00007FFABC2B0000-0x00007FFABCD71000-memory.dmp

    Filesize

    10.8MB

    Download