Resubmissions

15/04/2026, 15:03

260415-sfeq3aay9j

15/04/2026, 14:55

260415-samjqaav8j8

General

  • Target
    OptiFine_1.21.1_HD_U_J1.jar
  • Size 7.0MB
  • Sample260415-samjqaav8j
  • SHA256 db6d2d14db0009bdea2d8f848e5cb55aac52b555e8e50506dbf7876755b79082
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      OptiFine_1.21.1_HD_U_J1.jar
    • Size 7.0MB
    • SHA256 db6d2d14db0009bdea2d8f848e5cb55aac52b555e8e50506dbf7876755b79082
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Badlisted process makes network request

      Network request originating from process or tool commonly abused by malware.

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • Drops desktop.ini file(s)

    • Enumerates connected drives

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

MITRE ATT&CK Enterprise v16

Tasks