General

  • Target

    a69420b181a6704cdf507e6ba6f725060fc4eca42794aca6a3719af43bc33560.exe

  • Size

    317KB

  • Sample

    240405-b12ynahd32

  • MD5

    7ab01c7022ab366a6f23dbc42dd13d65

  • SHA1

    4c7e8b2e8e37856f30153e154093df0d0bf9cdd4

  • SHA256

    a69420b181a6704cdf507e6ba6f725060fc4eca42794aca6a3719af43bc33560

  • SHA512

    1f74f06337af10a7745be0be737c77327cc23922fe4d3128e13455e8e06d856118c58c63bf61d16cc730ef0d413eecbd21f3140fbcdf2dc6ec7f8b4af1553993

  • SSDEEP

    6144:AidlJjyVedN+tn89kNDEAQayRvoNOYtX6wYV:AidlJv+tn8/AQaykt+

Malware Config

Extracted

Family

agenttesla

Credentials

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    server314.web-hosting.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    ryUH#n4y%@I&

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

April3rd2024

C2

91.92.241.169:3434

Mutex

A234sdgrgMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      a69420b181a6704cdf507e6ba6f725060fc4eca42794aca6a3719af43bc33560.exe

    • Size

      317KB

    • MD5

      7ab01c7022ab366a6f23dbc42dd13d65

    • SHA1

      4c7e8b2e8e37856f30153e154093df0d0bf9cdd4

    • SHA256

      a69420b181a6704cdf507e6ba6f725060fc4eca42794aca6a3719af43bc33560

    • SHA512

      1f74f06337af10a7745be0be737c77327cc23922fe4d3128e13455e8e06d856118c58c63bf61d16cc730ef0d413eecbd21f3140fbcdf2dc6ec7f8b4af1553993

    • SSDEEP

      6144:AidlJjyVedN+tn89kNDEAQayRvoNOYtX6wYV:AidlJv+tn8/AQaykt+

    • AgentTesla

      Agent Tesla is a remote access tool (RAT) written in visual basic.

    • AsyncRat

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

    • Detect ZGRat V1

    • ZGRat

      ZGRat is remote access trojan written in C#.

    • Detect packed .NET executables. Mostly AgentTeslaV4.

    • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

    • Detects executables referencing Windows vault credential objects. Observed in infostealers

    • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

    • Detects executables referencing many email and collaboration clients. Observed in information stealers

    • Detects executables referencing many file transfer clients. Observed in information stealers

    • Detects file containing reversed ASEP Autorun registry keys

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Adds Run key to start application

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks