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General

  • Target

    OSE.exe

  • Size

    1022KB

  • Sample

    200710-9qmhk5t4fx

  • MD5

    66883d9f96b49980f2faa93043d00c1d

  • SHA1

    6460aed133d60d8cf7a1cebc9eac08d9e0a635e2

  • SHA256

    0d3054972b35fa5c6f67ba30f1495823dda35917b171af358242c20293e2bbbb

  • SHA512

    7ce17d14d88da961f7d11531a60adf3ea4e8b6f4e08f76f73ca9a2af4986e7f4739a6407e790ee974325d3417f9459860a795d7f67a6c13412bcc0268d36530b

Malware Config

Targets

    • Target

      OSE.exe

    • Size

      1022KB

    • MD5

      66883d9f96b49980f2faa93043d00c1d

    • SHA1

      6460aed133d60d8cf7a1cebc9eac08d9e0a635e2

    • SHA256

      0d3054972b35fa5c6f67ba30f1495823dda35917b171af358242c20293e2bbbb

    • SHA512

      7ce17d14d88da961f7d11531a60adf3ea4e8b6f4e08f76f73ca9a2af4986e7f4739a6407e790ee974325d3417f9459860a795d7f67a6c13412bcc0268d36530b

    • MassLogger

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

    • MassLogger log file

      Detects a log file produced by MassLogger.

    • Executes dropped EXE

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Drops startup file

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • 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