General

  • Target

    SecuriteInfo.com.Exploit.Rtf.Obfuscated.32.21344.4358.rtf

  • Size

    3KB

  • Sample

    221206-qt4w1acc83

  • MD5

    53e0a65f4d1a5b5a0c8a7c267317c856

  • SHA1

    e736a31e21c3e9e8bd9690cdbd3e834986e77618

  • SHA256

    96e34da45bab0097eae12785e53c6b12036ed2cf60cbf2b18c9ace58689ce388

  • SHA512

    efa88078c8d697b9fed6d35c10c9878895c159e72cd4761c3cbfb0b3c95aed1c4038e67ffd4281351602c5af5c74ab93ff68d0270ad19c35d1fa8b38f745494a

Malware Config

Targets

    • Target

      SecuriteInfo.com.Exploit.Rtf.Obfuscated.32.21344.4358.rtf

    • Size

      3KB

    • MD5

      53e0a65f4d1a5b5a0c8a7c267317c856

    • SHA1

      e736a31e21c3e9e8bd9690cdbd3e834986e77618

    • SHA256

      96e34da45bab0097eae12785e53c6b12036ed2cf60cbf2b18c9ace58689ce388

    • SHA512

      efa88078c8d697b9fed6d35c10c9878895c159e72cd4761c3cbfb0b3c95aed1c4038e67ffd4281351602c5af5c74ab93ff68d0270ad19c35d1fa8b38f745494a

    • AgentTesla

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

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • 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.

    • Accesses Microsoft Outlook profiles

    • 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 v6

Tasks