General

  • Target

    f780667dfa96e07a53933e96e8dc5a985517c3cadb699bf45f656d0ed1dcb3a6.xlsx

  • Size

    640KB

  • Sample

    240510-cfqkkafg39

  • MD5

    131844fd7418fbf55ca4926d1befee15

  • SHA1

    3a28e0ea39bf4ab20eaddf9d556b384140c49328

  • SHA256

    f780667dfa96e07a53933e96e8dc5a985517c3cadb699bf45f656d0ed1dcb3a6

  • SHA512

    6e0d9ad4e5c463a9085c0d434e2b81307188f9f44d36f4d6b3d49f10e84a8b413abb613c7eec3df6cf5ae83de529414020b6a3559507590a7ffe449e1dec5a17

  • SSDEEP

    12288:SanWgfLpjAceE/4qs3otznIyVImP0JwhnMqqyDx2huE6+oLOpAo0lmZs:XUE/g29ImikJA16+p90lmZs

Malware Config

Targets

    • Target

      f780667dfa96e07a53933e96e8dc5a985517c3cadb699bf45f656d0ed1dcb3a6.xlsx

    • Size

      640KB

    • MD5

      131844fd7418fbf55ca4926d1befee15

    • SHA1

      3a28e0ea39bf4ab20eaddf9d556b384140c49328

    • SHA256

      f780667dfa96e07a53933e96e8dc5a985517c3cadb699bf45f656d0ed1dcb3a6

    • SHA512

      6e0d9ad4e5c463a9085c0d434e2b81307188f9f44d36f4d6b3d49f10e84a8b413abb613c7eec3df6cf5ae83de529414020b6a3559507590a7ffe449e1dec5a17

    • SSDEEP

      12288:SanWgfLpjAceE/4qs3otznIyVImP0JwhnMqqyDx2huE6+oLOpAo0lmZs:XUE/g29ImikJA16+p90lmZs

    • 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

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • Looks up external IP address via web service

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

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks