General

  • Target

    KOSTAL.exe

  • Size

    624KB

  • Sample

    210128-dye7dcwa4j

  • MD5

    18e749290158ac34ad6ec1edcbf8ef01

  • SHA1

    5826bddad06961fc3ea9e4c02069ea486cd7a499

  • SHA256

    e0ec5ab404593520f98d17976acc233909af7784ea750cd2115d71eccb0b9ace

  • SHA512

    18852268da231e15d1a00e07b4ca3abf262ba584986193b47390c0df95161193a806438cf794090d854520c9ecd480b23a9e3e2d77e4fc1d5d8f9741f577c06a

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.psbusinesparks.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Alterative432

Targets

    • Target

      KOSTAL.exe

    • Size

      624KB

    • MD5

      18e749290158ac34ad6ec1edcbf8ef01

    • SHA1

      5826bddad06961fc3ea9e4c02069ea486cd7a499

    • SHA256

      e0ec5ab404593520f98d17976acc233909af7784ea750cd2115d71eccb0b9ace

    • SHA512

      18852268da231e15d1a00e07b4ca3abf262ba584986193b47390c0df95161193a806438cf794090d854520c9ecd480b23a9e3e2d77e4fc1d5d8f9741f577c06a

    • AgentTesla

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

    • AgentTesla Payload

    • 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 Matrix ATT&CK v6

Credential Access

Credentials in Files

3
T1081

Collection

Data from Local System

3
T1005

Tasks