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General

  • Target

    RedwareSpoofer.bat

  • Size

    504KB

  • Sample

    250323-zgf4vavvbs

  • MD5

    7e3035eb197a52820c5a33c064917a8e

  • SHA1

    147d70a538be4135dbd2ad4dbf2fd750a6d387ee

  • SHA256

    747b16e1c41f4e99be3b52a4dbd712cd4d5407f6afffdf5d20f61b2e4c4d63b6

  • SHA512

    f95b2c680d39bd529dac582aed23340b196bf85bb0bb2011261c8c3d59962d71e18e0d675bfd73c1e24675cc499e022cdc62b9daadd6b0f877ec97988ca8737c

  • SSDEEP

    12288:iuXbEUU3h+QHSyN1iWFTM1hK0gddk5uMmYmi0125gDv:iuXbjUR+IRiWFTMjKpkL7a2sv

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

45.145.41.216:4782

Mutex

14f7ea9d-a87f-45a9-861e-84025067723f

Attributes
  • encryption_key

    144B0EE0DD77F21360C6C78F9C3080B2B44AE54D

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    System32

  • subdirectory

    SubDir

Targets

    • Target

      RedwareSpoofer.bat

    • Size

      504KB

    • MD5

      7e3035eb197a52820c5a33c064917a8e

    • SHA1

      147d70a538be4135dbd2ad4dbf2fd750a6d387ee

    • SHA256

      747b16e1c41f4e99be3b52a4dbd712cd4d5407f6afffdf5d20f61b2e4c4d63b6

    • SHA512

      f95b2c680d39bd529dac582aed23340b196bf85bb0bb2011261c8c3d59962d71e18e0d675bfd73c1e24675cc499e022cdc62b9daadd6b0f877ec97988ca8737c

    • SSDEEP

      12288:iuXbEUU3h+QHSyN1iWFTM1hK0gddk5uMmYmi0125gDv:iuXbjUR+IRiWFTMjKpkL7a2sv

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

    • Checks computer location settings

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

    • Adds Run key to start application

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks