General

  • Target

    7b3b27a5939919582d1c712df7e9a1792c22bebabb3f393d6681b0712e226a6b.exe

  • Size

    2.7MB

  • Sample

    240612-b3al7axhqr

  • MD5

    a2dc840cdaebca556e71e98efc9673bd

  • SHA1

    0f3adcf5a3a11852637d4c5b8bd1fae5969384f4

  • SHA256

    7b3b27a5939919582d1c712df7e9a1792c22bebabb3f393d6681b0712e226a6b

  • SHA512

    6b07bae8865d31c569cbdbca07e9993a5d3db4e5a9bf645f8c67867825a6afc8d838cf1b9e93905032d4298ab875dbee89b116b93b31353d997af73d4e771e41

  • SSDEEP

    12288:6sAripabvQCGxzxT/lYKFVGjcbfafuDkU70MuGsSm0qyGfmsmb:6sAOpkvQJyK9fYuj7JMrfmsk

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot7426366653:AAERgpeylo3lf--iVcYDsvLZ4C71qIFlyH4/

Targets

    • Target

      7b3b27a5939919582d1c712df7e9a1792c22bebabb3f393d6681b0712e226a6b.exe

    • Size

      2.7MB

    • MD5

      a2dc840cdaebca556e71e98efc9673bd

    • SHA1

      0f3adcf5a3a11852637d4c5b8bd1fae5969384f4

    • SHA256

      7b3b27a5939919582d1c712df7e9a1792c22bebabb3f393d6681b0712e226a6b

    • SHA512

      6b07bae8865d31c569cbdbca07e9993a5d3db4e5a9bf645f8c67867825a6afc8d838cf1b9e93905032d4298ab875dbee89b116b93b31353d997af73d4e771e41

    • SSDEEP

      12288:6sAripabvQCGxzxT/lYKFVGjcbfafuDkU70MuGsSm0qyGfmsmb:6sAOpkvQJyK9fYuj7JMrfmsk

    • AgentTesla

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

    • Detect packed .NET executables. Mostly AgentTeslaV4.

    • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

    • Detects executables packed with or use KoiVM

    • 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.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks