General

  • Target

    5712a2391ceea014323d4e43edd48069d4c2887b694df861db4a35ff32b20d64.7z

  • Size

    66KB

  • Sample

    240514-bnanmsdc3w

  • MD5

    4069b07fd62a80aa4b52c3ce72a9cd42

  • SHA1

    6b5b417375323c00fd7ed56758248fcf27efa697

  • SHA256

    5712a2391ceea014323d4e43edd48069d4c2887b694df861db4a35ff32b20d64

  • SHA512

    b2b693b9fb85dfe366c9d3c1ce938d15f75a9a27c548cb74eb9df5b1dfcc2ebcf21ddbbc2e27043866bfa9cf52ee2342965c10698b208f2f485167762409783c

  • SSDEEP

    1536:pzkAnBnacO2uE4oxZk7MQ4vB5DrPCJSDyiCiceI:LnMcORsXnQbiCiceI

Malware Config

Extracted

Family

agenttesla

Credentials

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    66.29.151.236
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    YuWsikfV67lD

Targets

    • Target

      INVOICE.exe

    • Size

      205KB

    • MD5

      494992eed787907766ef59dbec953d6b

    • SHA1

      ff02df9c31bd5462c912c84b040430682ac0304c

    • SHA256

      92fa9b6f4856cfd35907ac59a621ab7dcbb49550ae29b9131d570f5c1b6c4313

    • SHA512

      7c7318962a1273d1635f5fbf9dbd27f667148a6a2c30bcbf9a33440dabf1f566d40eaeee3a635d1742816bfa5c3fe2fe0efd48eb8b1a43e81fc575105c161943

    • SSDEEP

      3072:P8ANnCDDRvLGprOAOkGt6+duWA/t/SHUebbxCbGgKk12qk/FPYm21KLbDoUssNXA:UkstvLGcxLbMUMK2dH

    • AgentTesla

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

    • 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

    • 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