General

  • Target

    1bd8c28a74a99cc6eb115161fca392e4dc6b424bf3ff6814f688e470209b0825

  • Size

    960KB

  • Sample

    240619-x25a3axhjb

  • MD5

    269ee376ae0270c07826415d7f8899ea

  • SHA1

    2cb919d0ae3701707ac670837993d4afb0ac1499

  • SHA256

    1bd8c28a74a99cc6eb115161fca392e4dc6b424bf3ff6814f688e470209b0825

  • SHA512

    785185b881eb84574856378d9d3948be54cc02d0ec888ba956561faf46c7eac69e3d85ec11f151f203b7db104a97fe4ef48166a6a80c3de79390e83683bdb8f0

  • SSDEEP

    12288:LKW85eNyYs5v+Z8J1qoErGKDOaEo44tvjDR08PbReq8nxeMjM2efCpc81:eKsFd7qotKDOUFvX/PbueX2ef

Malware Config

Extracted

Family

agenttesla

Credentials

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.groupmt.vn
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    4j37SF2n8e

Targets

    • Target

      1bd8c28a74a99cc6eb115161fca392e4dc6b424bf3ff6814f688e470209b0825

    • Size

      960KB

    • MD5

      269ee376ae0270c07826415d7f8899ea

    • SHA1

      2cb919d0ae3701707ac670837993d4afb0ac1499

    • SHA256

      1bd8c28a74a99cc6eb115161fca392e4dc6b424bf3ff6814f688e470209b0825

    • SHA512

      785185b881eb84574856378d9d3948be54cc02d0ec888ba956561faf46c7eac69e3d85ec11f151f203b7db104a97fe4ef48166a6a80c3de79390e83683bdb8f0

    • SSDEEP

      12288:LKW85eNyYs5v+Z8J1qoErGKDOaEo44tvjDR08PbReq8nxeMjM2efCpc81:eKsFd7qotKDOUFvX/PbueX2ef

    • 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 SmartAssembly

    • 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