General

  • Target

    mazx.exe

  • Size

    512KB

  • Sample

    201124-jlsq6d4tw2

  • MD5

    1e2a95f0430902f259fb99ea0561eb30

  • SHA1

    16463ba1fd3cf7d27be85f35a5ac568066277f2f

  • SHA256

    58c4af7a3c7c29a946743a87767b53963707e149c09f3a8846c01ca831e84b3d

  • SHA512

    9444951bdbee92167c3af144c8a9819b8f6207d4beb63d5d8868f1bae5e46c2fc995492ab2f9f07649fcc6c786d0c19d9ecbf3d4f986f37bdf77bdc24733f190

Malware Config

Targets

    • Target

      mazx.exe

    • Size

      512KB

    • MD5

      1e2a95f0430902f259fb99ea0561eb30

    • SHA1

      16463ba1fd3cf7d27be85f35a5ac568066277f2f

    • SHA256

      58c4af7a3c7c29a946743a87767b53963707e149c09f3a8846c01ca831e84b3d

    • SHA512

      9444951bdbee92167c3af144c8a9819b8f6207d4beb63d5d8868f1bae5e46c2fc995492ab2f9f07649fcc6c786d0c19d9ecbf3d4f986f37bdf77bdc24733f190

    • MassLogger

      Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.

    • MassLogger Main Payload

    • Checks computer location settings

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

    • 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 v6

Tasks