General

  • Target

    b089fa2bc45c847783b8eb957d9d1023f707a96073f2657d6a838eaf5619949b.exe

  • Size

    618KB

  • Sample

    240328-c1fabsah66

  • MD5

    adc47f20cba61f1a2f8171791a455d09

  • SHA1

    62508fbdde7bfb78e927495bb96d78ceb832a1ae

  • SHA256

    b089fa2bc45c847783b8eb957d9d1023f707a96073f2657d6a838eaf5619949b

  • SHA512

    49ee25101729fe1d351d6b96861be96c0fe273ecc3c3378fc42848ef1d46f6e6128982b695de7a8639b1529791c541f4ad2077c93c11155dc0d5ebbe63e8414c

  • SSDEEP

    12288:4JMa5WyV/cXi7Cc8oZJfLyXrCt9vFjMRL9fPzDYUE8P8ITjEQ:4OS/kJoMIFCRhfgq8+j7

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.y-pt.com
  • Port:
    587
  • Username:
    maxwell@y-pt.com
  • Password:
    LILKOOLL14!
  • Email To:
    richibigi6@gmail.com

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.y-pt.com
  • Port:
    587
  • Username:
    maxwell@y-pt.com
  • Password:
    LILKOOLL14!

Targets

    • Target

      b089fa2bc45c847783b8eb957d9d1023f707a96073f2657d6a838eaf5619949b.exe

    • Size

      618KB

    • MD5

      adc47f20cba61f1a2f8171791a455d09

    • SHA1

      62508fbdde7bfb78e927495bb96d78ceb832a1ae

    • SHA256

      b089fa2bc45c847783b8eb957d9d1023f707a96073f2657d6a838eaf5619949b

    • SHA512

      49ee25101729fe1d351d6b96861be96c0fe273ecc3c3378fc42848ef1d46f6e6128982b695de7a8639b1529791c541f4ad2077c93c11155dc0d5ebbe63e8414c

    • SSDEEP

      12288:4JMa5WyV/cXi7Cc8oZJfLyXrCt9vFjMRL9fPzDYUE8P8ITjEQ:4OS/kJoMIFCRhfgq8+j7

    • AgentTesla

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

    • Detect packed .NET executables. Mostly AgentTeslaV4.

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

    • Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion

    • Detects executables packed with SmartAssembly

    • 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

    • 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.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

3
T1552.001

Credentials in Registry

1
T1552.002

Collection

Data from Local System

4
T1005

Tasks