Overview

overview

10

Static

static

10

17dc9571db...4e.exe

windows7-x64

10

17dc9571db...4e.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-08-2024 18:30

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General

  • Target

    17dc9571dbd7e094dd65a862adfcde7328a3c3e45c9053ba99bff638e7918b4e.exe

  • Size

    74KB

  • MD5

    31548bc072b604c0617e5ebcf7fc60b4

  • SHA1

    035e68c49525e477ca5e61f77e1f8fdd4955b722

  • SHA256

    17dc9571dbd7e094dd65a862adfcde7328a3c3e45c9053ba99bff638e7918b4e

  • SHA512

    9848a6406fa2b6ff3046dd147eb94583fb637a2598dc332905b2a98e171814d3d76554bcf54a909503577fab85ccccf29ae475f614edd3f30e0a62afe8696cb1

  • SSDEEP

    1536:mUJQcxAz6/CTGPMVfe9VdQuDI6H1bf/gqcnSQzcaLVclN:mUWcxAW/4GPMVfe9VdQsH1bfQnSQLBY

Score
10/10
asyncratdefaultrat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

Mutex

WindowsRuntimeBrokerService

Attributes
  • delay

    1

  • install

    true

  • install_file

    Microsoft\Windows\Themes\RuntimeBroker.exe

  • install_folder

    %AppData%

  • pastebin_config

    https://pastebin.com/raw/xcd2XZ5Q

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

    ratasyncrat
  • VenomRAT 2 IoCs

    Detects VenomRAT.

    rat
  • 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
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 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 4 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\17dc9571dbd7e094dd65a862adfcde7328a3c3e45c9053ba99bff638e7918b4e.exe
    "C:\Users\Admin\AppData\Local\Temp\17dc9571dbd7e094dd65a862adfcde7328a3c3e45c9053ba99bff638e7918b4e.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2892
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "RuntimeBroker" /tr '"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Themes\RuntimeBroker.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4460
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "RuntimeBroker" /tr '"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Themes\RuntimeBroker.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:2692
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpBAF3.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1172
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:4024
      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Themes\RuntimeBroker.exe
        "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Themes\RuntimeBroker.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:1032

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpBAF3.tmp.bat
    Filesize

    182B

    MD5

    acaed248b3ebb0f4e234ec57df7b1b5c

    SHA1

    b223c5a6310a555f23addb4e77246b30b1e1f92f

    SHA256

    18bc0f4e8afacd92f4ee4c55bba0a1c709e6218ecd3ebe28f6f5b5b026f6a157

    SHA512

    9e81ab3e89697dcddb759d4d56fb37289673b9cf79fa65b788f98668fc33d9125a59eaeb99690a1411df4bf7767c4adf6dc08b77f9a2ccf9ea716049af650e7c

    Download Submit

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Themes\RuntimeBroker.exe
    Filesize

    74KB

    MD5

    31548bc072b604c0617e5ebcf7fc60b4

    SHA1

    035e68c49525e477ca5e61f77e1f8fdd4955b722

    SHA256

    17dc9571dbd7e094dd65a862adfcde7328a3c3e45c9053ba99bff638e7918b4e

    SHA512

    9848a6406fa2b6ff3046dd147eb94583fb637a2598dc332905b2a98e171814d3d76554bcf54a909503577fab85ccccf29ae475f614edd3f30e0a62afe8696cb1

    Download Submit

  • C:\Users\Admin\AppData\Roaming\MyData\DataLogs.conf
    Filesize

    8B

    MD5

    cf759e4c5f14fe3eec41b87ed756cea8

    SHA1

    c27c796bb3c2fac929359563676f4ba1ffada1f5

    SHA256

    c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761

    SHA512

    c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b

    Download Submit

  • memory/2892-0-0x00007FFB9A263000-0x00007FFB9A265000-memory.dmp

    Filesize

    8KB

    Download

  • memory/2892-1-0x0000000000F40000-0x0000000000F58000-memory.dmp

    Filesize

    96KB

    Download

  • memory/2892-3-0x00007FFB9A260000-0x00007FFB9AD21000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/2892-6-0x00007FFB9A260000-0x00007FFB9AD21000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/2892-9-0x00007FFB9A260000-0x00007FFB9AD21000-memory.dmp

    Filesize

    10.8MB

    Download