General

  • Target

    26fcc106f92623f06b5eb2e87b2e2e58a2ad9eea51de7d15a15b85dafe44b937.xlsx

  • Size

    718KB

  • Sample

    240503-bltnqsbd3x

  • MD5

    989feda4871b86bfbcec9debb0b2ec45

  • SHA1

    05ef3f9b7d77b9709423222a81d670cbcae013cd

  • SHA256

    26fcc106f92623f06b5eb2e87b2e2e58a2ad9eea51de7d15a15b85dafe44b937

  • SHA512

    ba62b7d1cc358aa8e3525bbb0988274823feef6f485cc9ec2d5d43734c35f0f1d9c978bed490ea6b4cfc25e86a4df5788be8b3bbb3677064be3895d3becd4c44

  • SSDEEP

    12288:r8nWilHGpyCdswU+rUUfvPn9mw1Z68YnQgtJPskWBMpINmNGWBn:Y/0RuFLUfvPn9tk8E7xWuWLWBn

Malware Config

Targets

    • Target

      26fcc106f92623f06b5eb2e87b2e2e58a2ad9eea51de7d15a15b85dafe44b937.xlsx

    • Size

      718KB

    • MD5

      989feda4871b86bfbcec9debb0b2ec45

    • SHA1

      05ef3f9b7d77b9709423222a81d670cbcae013cd

    • SHA256

      26fcc106f92623f06b5eb2e87b2e2e58a2ad9eea51de7d15a15b85dafe44b937

    • SHA512

      ba62b7d1cc358aa8e3525bbb0988274823feef6f485cc9ec2d5d43734c35f0f1d9c978bed490ea6b4cfc25e86a4df5788be8b3bbb3677064be3895d3becd4c44

    • SSDEEP

      12288:r8nWilHGpyCdswU+rUUfvPn9mw1Z68YnQgtJPskWBMpINmNGWBn:Y/0RuFLUfvPn9tk8E7xWuWLWBn

    • 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