General

  • Target

    3384-4910-0x0000000000400000-0x000000000044B000-memory.dmp

  • Size

    300KB

  • Sample

    240517-k1bk5saf8t

  • MD5

    89f413212bcb3c3eb5a5d496bf33c812

  • SHA1

    319e057de2b5fc74f5d40507d314e005de2cab35

  • SHA256

    375829ac1424371c42781a040e71774597f1e2da3b10df0f0937479da24f4241

  • SHA512

    af92e2f1a941ff3560b56de8fde953a9bfcf80c606f12cf2683b32dfc64015cc82cc52c05234dbf9d3803ec7332044b9b4741f2c1a04c7f15fcdf4679f5277a4

  • SSDEEP

    6144:cl+xRRRRp3EagaSHorWtWTmFduCNXaKluwhOq3bjBZYl:9xRRRRp3LgaSHorWtWCuCNZ3BZYl

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

April3rd2024

C2

94.156.65.181:3434

Mutex

A234sdgrgMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    66.29.151.236
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    s9jjoVvaZchS

Targets

    • Target

      3384-4910-0x0000000000400000-0x000000000044B000-memory.dmp

    • Size

      300KB

    • MD5

      89f413212bcb3c3eb5a5d496bf33c812

    • SHA1

      319e057de2b5fc74f5d40507d314e005de2cab35

    • SHA256

      375829ac1424371c42781a040e71774597f1e2da3b10df0f0937479da24f4241

    • SHA512

      af92e2f1a941ff3560b56de8fde953a9bfcf80c606f12cf2683b32dfc64015cc82cc52c05234dbf9d3803ec7332044b9b4741f2c1a04c7f15fcdf4679f5277a4

    • SSDEEP

      6144:cl+xRRRRp3EagaSHorWtWTmFduCNXaKluwhOq3bjBZYl:9xRRRRp3LgaSHorWtWCuCNZ3BZYl

    • 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#.

    • Async RAT payload

    • 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.

    • Looks up external IP address via web service

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

MITRE ATT&CK Enterprise v15

Tasks