General

  • Target

    4cbf9bbdc3740350280a4fdda31e4eafa3702a5fa431490ce3dee64f7b11f13c

  • Size

    257KB

  • Sample

    221123-m45phaba2x

  • MD5

    db3176e3f4584c2eeb009f050b217fef

  • SHA1

    c5c42cac2c701e13f11e6b7ed005d2cecea8049d

  • SHA256

    4cbf9bbdc3740350280a4fdda31e4eafa3702a5fa431490ce3dee64f7b11f13c

  • SHA512

    76b8634349dd89984444b2af962698c7440dc1927500b2c30e16fd2897bd2056257bd6cb38007838a6c4725484cedd81cd842abc27fd6cdd2db74e6e09b6cfbf

  • SSDEEP

    6144:dsRGRhA+6W9Xx9A35QPaqPNuFrdiJt313DItN6lDdT:aaSTW9h9A3uVQ6lDdT

Malware Config

Targets

    • Target

      4cbf9bbdc3740350280a4fdda31e4eafa3702a5fa431490ce3dee64f7b11f13c

    • Size

      257KB

    • MD5

      db3176e3f4584c2eeb009f050b217fef

    • SHA1

      c5c42cac2c701e13f11e6b7ed005d2cecea8049d

    • SHA256

      4cbf9bbdc3740350280a4fdda31e4eafa3702a5fa431490ce3dee64f7b11f13c

    • SHA512

      76b8634349dd89984444b2af962698c7440dc1927500b2c30e16fd2897bd2056257bd6cb38007838a6c4725484cedd81cd842abc27fd6cdd2db74e6e09b6cfbf

    • SSDEEP

      6144:dsRGRhA+6W9Xx9A35QPaqPNuFrdiJt313DItN6lDdT:aaSTW9h9A3uVQ6lDdT

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Downloads MZ/PE file

    • Executes dropped EXE

    • 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.

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • Loads dropped DLL

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v6

Tasks