General

  • Target

    c20fa32bcec64fb853a75c8a25a185682a3ef4ed77f5cb1378512d0f942c077f

  • Size

    876KB

  • Sample

    220418-ptk88affbj

  • MD5

    d0984b64a82a8564e0309ca82f581035

  • SHA1

    18c8163ab1dddba15ecc8af94ee3d1a61c28cdef

  • SHA256

    c20fa32bcec64fb853a75c8a25a185682a3ef4ed77f5cb1378512d0f942c077f

  • SHA512

    b589f8b92fe9d08cedfadfece30848ec97c42123ce203a506dde326a0e2361fbb03ca4b2f69d2bb7915d17baed1c19e96906d1cba7f9d3fc14e2b86f8ac56416

Malware Config

Targets

    • Target

      c20fa32bcec64fb853a75c8a25a185682a3ef4ed77f5cb1378512d0f942c077f

    • Size

      876KB

    • MD5

      d0984b64a82a8564e0309ca82f581035

    • SHA1

      18c8163ab1dddba15ecc8af94ee3d1a61c28cdef

    • SHA256

      c20fa32bcec64fb853a75c8a25a185682a3ef4ed77f5cb1378512d0f942c077f

    • SHA512

      b589f8b92fe9d08cedfadfece30848ec97c42123ce203a506dde326a0e2361fbb03ca4b2f69d2bb7915d17baed1c19e96906d1cba7f9d3fc14e2b86f8ac56416

    • MassLogger

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

    • MassLogger Main Payload

    • Executes dropped EXE

    • Checks computer location settings

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

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses Microsoft Outlook profiles

    • 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