General

  • Target

    sostener.vbs

  • Size

    438KB

  • Sample

    240926-kv1yva1dqh

  • MD5

    7038e85f1e6e6405981b64ff58358482

  • SHA1

    9df67362f01d7a33a02a708fa6da1c3a1214fc51

  • SHA256

    a1a8e23d2f66e05da76366469a1a344973fb1d775a943656de0f90bf0306e447

  • SHA512

    e9bc9b726b17f8f513d36054647537d6e494bfb0087306ca52ca0f1f95785afa705ede98baaf71f19fead408f434a061a34ac6f0c457b0b77bdc51f93005c676

  • SSDEEP

    96:OffffUffffUfffflDXc7lYm8ky0xbFi1msE4VIAGYALFCN8V0bf:s7OlYm8kyIhi1msJVIAGYAZCN8qf

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

https://www.informacionoportuna.com/wp-content/uploads/2024/09/dllskyfal.txt

Extracted

Family

asyncrat

Version

1.0.7

Botnet

Server

C2

dcmxz.duckdns.org:35650

Mutex

DcRatMutex_qwqdanchun

Attributes
  • delay

    1

  • install

    false

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      sostener.vbs

    • Size

      438KB

    • MD5

      7038e85f1e6e6405981b64ff58358482

    • SHA1

      9df67362f01d7a33a02a708fa6da1c3a1214fc51

    • SHA256

      a1a8e23d2f66e05da76366469a1a344973fb1d775a943656de0f90bf0306e447

    • SHA512

      e9bc9b726b17f8f513d36054647537d6e494bfb0087306ca52ca0f1f95785afa705ede98baaf71f19fead408f434a061a34ac6f0c457b0b77bdc51f93005c676

    • SSDEEP

      96:OffffUffffUfffflDXc7lYm8ky0xbFi1msE4VIAGYALFCN8V0bf:s7OlYm8kyIhi1msJVIAGYAZCN8qf

    • AsyncRat

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

    • Blocklisted process makes network request

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Adds Run key to start application

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks