General

  • Target
    520966f3a23dd01431f870c9dd61f57e3910ab8074d91a67bc99e4076341571d.gz
  • Size 116KB
  • Sample240424-bt45fadf5y
  • SHA256 520966f3a23dd01431f870c9dd61f57e3910ab8074d91a67bc99e4076341571d
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    ftp

  • Host

    ftp://ftp.concaribe.com

  • Port

    21

  • Password

    2ogFj^8ECV(?

Targets

    • Target
      CR-FEDEX_TN-775720741041.vbs
    • Size 229KB
    • SHA256 3fe507970779d2d32f1b4083e87417da3fb7b026b3caf42e6b61ec2a9150a30f
    • MD5 SHA1 SHA512 SSDEEP
    • AgentTesla

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

    • Guloader,Cloudeye

      A shellcode based downloader first seen in 2020.

    • 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

    • Blocklisted process makes network request

    • Checks computer location settings

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

    • 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 NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks