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Resubmissions

15/03/2024, 15:52

240315-tbbpaacd5t 5

15/03/2024, 15:08

240315-sh6bssbe5v 10

General

  • Target

    https://mega.nz/file/knl0SZjb#rNGJxxlpLfD8fEcm1-Q-j1LLwutjtwz5GhOcuDMcmRE

  • Sample

    240315-sh6bssbe5v

Malware Config

Targets

    • Target

      https://mega.nz/file/knl0SZjb#rNGJxxlpLfD8fEcm1-Q-j1LLwutjtwz5GhOcuDMcmRE

    • Chaos

      Ransomware family first seen in June 2021.

    • Chaos Ransomware

    • 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.

    • 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.

    • Drops desktop.ini file(s)

    • Enumerates connected drives

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

    • Sets desktop wallpaper using registry

MITRE ATT&CK Enterprise v15

Tasks