General

  • Target

    f7a6f35fa55966b85599002542e6e680_JaffaCakes118

  • Size

    462KB

  • Sample

    240926-fznf4asfkd

  • MD5

    f7a6f35fa55966b85599002542e6e680

  • SHA1

    164952e1da9ad89bec0fb105ae7712845f4e556b

  • SHA256

    48fbba6a7af6062b76a92497f90c2c552e65d1f7990b0715747ad1afa15cf057

  • SHA512

    f7e5fc1be112f287d2ca937d1e5244d15a334c96bd86e5d50b84f296e111934a4cf20fc440bcdc49e272245ab6d69011e7fdd729e5ccad1a2c41d071e930fb9c

  • SSDEEP

    12288:FMwXwfyKrSZ6Xb5dEzxX3XUXcIWHTo446fHV+G:FMwXwfyKGCDEzxNG6f

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      f7a6f35fa55966b85599002542e6e680_JaffaCakes118

    • Size

      462KB

    • MD5

      f7a6f35fa55966b85599002542e6e680

    • SHA1

      164952e1da9ad89bec0fb105ae7712845f4e556b

    • SHA256

      48fbba6a7af6062b76a92497f90c2c552e65d1f7990b0715747ad1afa15cf057

    • SHA512

      f7e5fc1be112f287d2ca937d1e5244d15a334c96bd86e5d50b84f296e111934a4cf20fc440bcdc49e272245ab6d69011e7fdd729e5ccad1a2c41d071e930fb9c

    • SSDEEP

      12288:FMwXwfyKrSZ6Xb5dEzxX3XUXcIWHTo446fHV+G:FMwXwfyKGCDEzxNG6f

    • AgentTesla

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

    • Modifies Windows Defender Real-time Protection settings

    • AgentTesla payload

    • Looks for VirtualBox Guest Additions in registry

    • Looks for VMWare Tools registry key

    • Checks BIOS information in registry

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

    • 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.

    • Windows security modification

    • 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