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General

  • Target

    5713f2949b18fbbbfe968017c16f5237_JaffaCakes118

  • Size

    512KB

  • Sample

    241018-m5kqqawcnn

  • MD5

    5713f2949b18fbbbfe968017c16f5237

  • SHA1

    c15dc790e78d9155de15cafe9385bcab1ee7dc75

  • SHA256

    ca1fcd7714d5015ba34c9c5babc3dd6f7aa250bf84ca7d4614beb510cca5a053

  • SHA512

    26502aba935f454ea259a1c0f524efad6e71e9603f53585318561fb53f1c109d21f413e5b35fa7b55142b7df319f64523c1d8ab170ee71523fdf2adab901875b

  • SSDEEP

    12288:eghYlkKFGPjdBFnmjrSpGdYuUFtzVK8t:eYAFG7dSnYuWvK8t

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.windturdineservice.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    tzxPGMX2

Targets

    • Target

      5713f2949b18fbbbfe968017c16f5237_JaffaCakes118

    • Size

      512KB

    • MD5

      5713f2949b18fbbbfe968017c16f5237

    • SHA1

      c15dc790e78d9155de15cafe9385bcab1ee7dc75

    • SHA256

      ca1fcd7714d5015ba34c9c5babc3dd6f7aa250bf84ca7d4614beb510cca5a053

    • SHA512

      26502aba935f454ea259a1c0f524efad6e71e9603f53585318561fb53f1c109d21f413e5b35fa7b55142b7df319f64523c1d8ab170ee71523fdf2adab901875b

    • SSDEEP

      12288:eghYlkKFGPjdBFnmjrSpGdYuUFtzVK8t:eYAFG7dSnYuWvK8t

    • AgentTesla

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

    • AgentTesla payload

    • Looks for VirtualBox Guest Additions in registry

    • Drops file in Drivers directory

    • 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