Overview

overview

10

Static

static

10

Client.exe

windows7-x64

10

Client.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-12-2024 16:04

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General

  • Target

    Client.exe

  • Size

    74KB

  • MD5

    ff9957be040ba821afc9248d7f3c9e74

  • SHA1

    19bf5b47a05a06f8c448286979c17364df9b9d8a

  • SHA256

    f0de46c374e87a43f8e8d977ed7920271beb883f0cc19492698301ea412498e5

  • SHA512

    2b283049ffaecb665006453bf5757ea7adc95a678ded145285bf8529a824a1ec10d1e92c319553d436d4aea4e665fe995db6748a22fa72898faf8adbeef17703

  • SSDEEP

    1536:SUaAcx2l/Cx2PMVie9VdQuDI6H1bf/3EQzcuLVclN:SUDcx2Bq2PMVie9VdQsH1bffEQnBY

Score
10/10
asyncratvenomratlinasdiscoveryrat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Linas

C2

127.0.0.1:4449

185.241.61.180:4449
Mutex

lxvckrzncz

Attributes
  • delay

    1

  • install

    true

  • install_file

    Defender.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

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

    ratasyncrat
  • Asyncrat family
    asyncrat
  • VenomRAT 2 IoCs

    Detects VenomRAT.

    rat
  • Venomrat family
    venomrat
  • 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
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

    discovery
  • 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 28 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⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:848
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Defender" /tr '"C:\Users\Admin\AppData\Roaming\Defender.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:924
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "Defender" /tr '"C:\Users\Admin\AppData\Roaming\Defender.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:4536
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp7DAC.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1540
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:4556
      • C:\Users\Admin\AppData\Roaming\Defender.exe
        "C:\Users\Admin\AppData\Roaming\Defender.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:1320

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp7DAC.tmp.bat
    Filesize

    152B

    MD5

    fa798a160b17c5c42d2db11285b32f22

    SHA1

    f99007dd3cf57bb21387737c6ceec46cfaaeb2f9

    SHA256

    156923f06a1549d50008acb21e195fc5fd57de1befdd2a47c3be9e465e70ea20

    SHA512

    16628bb024fad9990c479a083d4f2944fc5c091c5c5bf3becf41e8e6502523c1157643f7a57691029d65e09cc26bcc273545bdf9da3e67a234996b8bd293fae6

    Download Submit

  • C:\Users\Admin\AppData\Roaming\Defender.exe
    Filesize

    74KB

    MD5

    ff9957be040ba821afc9248d7f3c9e74

    SHA1

    19bf5b47a05a06f8c448286979c17364df9b9d8a

    SHA256

    f0de46c374e87a43f8e8d977ed7920271beb883f0cc19492698301ea412498e5

    SHA512

    2b283049ffaecb665006453bf5757ea7adc95a678ded145285bf8529a824a1ec10d1e92c319553d436d4aea4e665fe995db6748a22fa72898faf8adbeef17703

    Download Submit

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

    8B

    MD5

    cf759e4c5f14fe3eec41b87ed756cea8

    SHA1

    c27c796bb3c2fac929359563676f4ba1ffada1f5

    SHA256

    c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761

    SHA512

    c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b

    Download Submit

  • memory/848-0-0x00007FFFDD413000-0x00007FFFDD415000-memory.dmp

    Filesize

    8KB

    Download

  • memory/848-1-0x0000000000E80000-0x0000000000E98000-memory.dmp

    Filesize

    96KB

    Download

  • memory/848-3-0x00007FFFDD410000-0x00007FFFDDED1000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/848-8-0x00007FFFDD410000-0x00007FFFDDED1000-memory.dmp

    Filesize

    10.8MB

    Download