General

  • Target

    JaffaCakes118_0bed072c1378217af6b43a2c13bfd2de

  • Size

    512KB

  • Sample

    250106-d3ra2svlhv

  • MD5

    0bed072c1378217af6b43a2c13bfd2de

  • SHA1

    290aed18007f7700a9a3e947c138525329a2945c

  • SHA256

    48619feb25cd4b2e67c69bc9078391541a4b8039b408c79ebde4d48ffaa00661

  • SHA512

    ff049199bb28f6b7cd9f97e0c2b480cd44f8c4518476b8e45f372e33c5555aa632a21cee521e29015d84d9d1993f9d612b677476e38c78bc2c5ac31228d4f78e

  • SSDEEP

    12288:g6UT9Ui2iN6pLLHLQ8Z30CR8LwkxnbiX:9UT9Ui1WLLsq3Rowk

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    webmail.karanex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Oi&-tmhj@d5v

Targets

    • Target

      JaffaCakes118_0bed072c1378217af6b43a2c13bfd2de

    • Size

      512KB

    • MD5

      0bed072c1378217af6b43a2c13bfd2de

    • SHA1

      290aed18007f7700a9a3e947c138525329a2945c

    • SHA256

      48619feb25cd4b2e67c69bc9078391541a4b8039b408c79ebde4d48ffaa00661

    • SHA512

      ff049199bb28f6b7cd9f97e0c2b480cd44f8c4518476b8e45f372e33c5555aa632a21cee521e29015d84d9d1993f9d612b677476e38c78bc2c5ac31228d4f78e

    • SSDEEP

      12288:g6UT9Ui2iN6pLLHLQ8Z30CR8LwkxnbiX:9UT9Ui1WLLsq3Rowk

    • AgentTesla

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

    • Agenttesla family

    • AgentTesla payload

    • Looks for VirtualBox Guest Additions in registry

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Looks for VMWare Tools registry key

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • 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.

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Accesses Microsoft Outlook profiles

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks