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General

  • Target

    1c76ab3e803654bd830af90fbe2f96d1b99f41d8644771b0a9b686949688c34c.r00

  • Size

    698KB

  • Sample

    240320-cjf6aseg7t

  • MD5

    706af86d756ef612993ee323cb6821bf

  • SHA1

    a2ed3afda86cd435348b9b18ae05bc933e598bb7

  • SHA256

    1c76ab3e803654bd830af90fbe2f96d1b99f41d8644771b0a9b686949688c34c

  • SHA512

    a541c9f9870a8ff4e6da058246f95eeb91c43e41437f77f52148c50eb79a85dcab0de67a64e0f5b228486fa5accba5074dccb3020d8eb9fd6139baf1f54ce256

  • SSDEEP

    12288:4gDE0hI4khp48b1ty7VyIg2rDt9JloK4lhA/w5RLFW941bP90iGjQZ:4gDEoe1BkZVPt4l0w7dP9xG0

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.brusln.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Epic@2024

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      Scaned Product Specification.pdf.exe

    • Size

      1.1MB

    • MD5

      09b0ff1242fe63cb0fd7b07c90e69362

    • SHA1

      f022f88791a64ee203db2f9c3c59baeb1353bb66

    • SHA256

      b8568ef8c461f57be0df8d02e0488a5dbd9d2a7557c8d657e3978f138cbb7cdf

    • SHA512

      2204a7d336f02cc21a7e81e1b02eaf499ef68d5ae4f6915943578aeb3adbccd9801014a28f28fad92fa70651c8baeb66206023ebe03ad04c9d70f9e5802a9d00

    • SSDEEP

      24576:ZqMSN1FCQa9kiMietnN3/vAzfJooWa4xCyQg+nJ8V869/t5:Zq3N1FCQa9kiMienvIzT4x0g+Ett

    • 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 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.

    • Adds Run key to start application

    • 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 v15

Tasks