General

  • Target

    JRKGaming

  • Size

    171KB

  • Sample

    250409-jqez5stzct

  • MD5

    b7724bd9acf1f31e191a557939d57c26

  • SHA1

    4f9814293decf0fc6b53e477b683e9c280085b02

  • SHA256

    4a09528f4ab9eddacb1944e3c2fae6f24cb37c267f7c9360b494c5edfc62365b

  • SHA512

    66cf31adeaba3acec45e38e1cd1c27e11f36893773cb43ba647c613d7973434631ab954a5aaa0f04c5ab49de60fcbd812d098d396813ad7ed45de8d4b615ab6c

  • SSDEEP

    3072:16zq3FoSJQkHZIWNDEZJ3hmhDj7QOUCxq1XB5CkGHSvsuWDp8c/saqk3V97xZDIc:W9BsDp8c/saqk3V97HILqgIDSF5IQ9x8

Malware Config

Targets

    • Target

      JRKGaming

    • Size

      171KB

    • MD5

      b7724bd9acf1f31e191a557939d57c26

    • SHA1

      4f9814293decf0fc6b53e477b683e9c280085b02

    • SHA256

      4a09528f4ab9eddacb1944e3c2fae6f24cb37c267f7c9360b494c5edfc62365b

    • SHA512

      66cf31adeaba3acec45e38e1cd1c27e11f36893773cb43ba647c613d7973434631ab954a5aaa0f04c5ab49de60fcbd812d098d396813ad7ed45de8d4b615ab6c

    • SSDEEP

      3072:16zq3FoSJQkHZIWNDEZJ3hmhDj7QOUCxq1XB5CkGHSvsuWDp8c/saqk3V97xZDIc:W9BsDp8c/saqk3V97HILqgIDSF5IQ9x8

    • Contains code to disable Windows Defender

      A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

    • Disables service(s)

    • Modifies Windows Defender DisableAntiSpyware settings

    • Modifies Windows Defender Real-time Protection settings

    • Modifies Windows Defender TamperProtection settings

    • Thanos Ransomware

      Ransomware-as-a-service (RaaS) sold through underground forums.

    • Thanos executable

    • Thanos family

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Renames multiple (51) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Legitimate hosting services abused for malware hosting/C2

    • Network Service Discovery

      Attempt to gather information on host's network.

MITRE ATT&CK Enterprise v16

Tasks