General

  • Target

    1461362ebd3b8710610c59cd2aa00f435330bd9d8f75ba4105617b0205cd932b

  • Size

    29KB

  • Sample

    241116-vx5pxszhld

  • MD5

    c5a36a4a7e558ad587a7087d72a72c7c

  • SHA1

    3edc0fff5092983a4ae664c006dd5a94843eb715

  • SHA256

    1461362ebd3b8710610c59cd2aa00f435330bd9d8f75ba4105617b0205cd932b

  • SHA512

    c14b21e5e251449c6ad4ea29fc69ec5fc6586e16672d40cf019f6d9d63955d37b972c41b7e5a460a61059bf024647c4b9af7104237a87a96553a0276d6ef6986

  • SSDEEP

    384:StWZPzzxAm1vd5VM6YE2r7OUmgIYfdQPFolUOy5o91qqclYhhx82v4:37zxAmhWF/rEgIYw/ho98Ot82Q

Malware Config

Targets

    • Target

      1461362ebd3b8710610c59cd2aa00f435330bd9d8f75ba4105617b0205cd932b

    • Size

      29KB

    • MD5

      c5a36a4a7e558ad587a7087d72a72c7c

    • SHA1

      3edc0fff5092983a4ae664c006dd5a94843eb715

    • SHA256

      1461362ebd3b8710610c59cd2aa00f435330bd9d8f75ba4105617b0205cd932b

    • SHA512

      c14b21e5e251449c6ad4ea29fc69ec5fc6586e16672d40cf019f6d9d63955d37b972c41b7e5a460a61059bf024647c4b9af7104237a87a96553a0276d6ef6986

    • SSDEEP

      384:StWZPzzxAm1vd5VM6YE2r7OUmgIYfdQPFolUOy5o91qqclYhhx82v4:37zxAmhWF/rEgIYw/ho98Ot82Q

    • Chaos

      Ransomware family first seen in June 2021.

    • Chaos Ransomware

    • Chaos family

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Modifies boot configuration data using bcdedit

    • Deletes backup catalog

      Uses wbadmin.exe to inhibit system recovery.

    • Disables Task Manager via registry modification

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • 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

    • Drops desktop.ini file(s)

MITRE ATT&CK Enterprise v15

Tasks