Analysis

  • max time kernel
    140s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-12-2024 22:47

General

  • Target

    file.exe

  • Size

    1.7MB

  • MD5

    40f8c17c136d4dc83b130c9467cf6dcc

  • SHA1

    e9b6049aa7da0af9718f2f4ae91653d9bac403bb

  • SHA256

    cafb60920939bd2079d96f2e6e73f87632bc15bd72998f864e8968f7aab9623b

  • SHA512

    6760a0752957535ec45ce3307e31569ac263eb73157d6a424d6e30647651a4e93db7c0378028d9e0ce07e65a357d2bb81047064ccda2f6a13fa7402ee7794c2d

  • SSDEEP

    49152:IkXhu5J6iLKcMu/FQHujIytryx1GLMfzhh9JHTJ6qyrBbL:I0i9/COjIhkMfzhhMf

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

C2

205.209.109.10:4449

205.209.109.10:7723

Mutex

clgbfqzkkypxjps

Attributes
  • delay

    1

  • install

    false

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

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

  • Asyncrat family
  • VenomRAT 2 IoCs

    Detects VenomRAT.

  • Venomrat family
  • Async RAT payload 2 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Identifies Wine through registry keys 2 TTPs 1 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Checks installed software on the system 1 TTPs

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

  • Drops desktop.ini file(s) 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Identifies Wine through registry keys
    • Drops desktop.ini file(s)
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:2804

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2804-0-0x00000000005F0000-0x0000000000A52000-memory.dmp

    Filesize

    4.4MB

  • memory/2804-1-0x00000000005F0000-0x0000000000A52000-memory.dmp

    Filesize

    4.4MB

  • memory/2804-2-0x00000000005F0000-0x0000000000A52000-memory.dmp

    Filesize

    4.4MB

  • memory/2804-3-0x0000000007B20000-0x00000000080C4000-memory.dmp

    Filesize

    5.6MB

  • memory/2804-5-0x0000000007810000-0x00000000078A2000-memory.dmp

    Filesize

    584KB

  • memory/2804-6-0x00000000077B0000-0x00000000077BA000-memory.dmp

    Filesize

    40KB

  • memory/2804-9-0x0000000008A70000-0x0000000008B0C000-memory.dmp

    Filesize

    624KB

  • memory/2804-10-0x0000000008B10000-0x0000000008B76000-memory.dmp

    Filesize

    408KB

  • memory/2804-13-0x00000000005F0000-0x0000000000A52000-memory.dmp

    Filesize

    4.4MB

  • memory/2804-17-0x0000000009750000-0x00000000097C6000-memory.dmp

    Filesize

    472KB

  • memory/2804-18-0x0000000008A60000-0x0000000008A6E000-memory.dmp

    Filesize

    56KB

  • memory/2804-19-0x0000000009710000-0x000000000972E000-memory.dmp

    Filesize

    120KB