General

  • Target

    LFm.bin.exe

  • Size

    678KB

  • Sample

    230309-w6l5lshf57

  • MD5

    168447d837fc71deeee9f6c15e22d4f4

  • SHA1

    80ad29680cb8cecf58d870ee675b155fc616097f

  • SHA256

    add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b

  • SHA512

    f8e123b601b5df3e89109fcc2e215e014b0d99b382d7cfb1a8cfd55790525c4e5504ee668ac30108c1bebf32e312e0c33edb5737c7ae166b59f791269bd66112

  • SSDEEP

    12288:cPJ4U1TYQivI2qZ7aSgLwkFVpzUvest4ZEbjJLuDJVoM7:J6TYVQ2qZ7aSgLwuVfstRJLIYM

Malware Config

Targets

    • Target

      LFm.bin.exe

    • Size

      678KB

    • MD5

      168447d837fc71deeee9f6c15e22d4f4

    • SHA1

      80ad29680cb8cecf58d870ee675b155fc616097f

    • SHA256

      add2850732c42683ee92ba555bbffb88bf5a4eee7c51e24f15a898f2d5aff66b

    • SHA512

      f8e123b601b5df3e89109fcc2e215e014b0d99b382d7cfb1a8cfd55790525c4e5504ee668ac30108c1bebf32e312e0c33edb5737c7ae166b59f791269bd66112

    • SSDEEP

      12288:cPJ4U1TYQivI2qZ7aSgLwkFVpzUvest4ZEbjJLuDJVoM7:J6TYVQ2qZ7aSgLwuVfstRJLIYM

    • MedusaLocker

      Ransomware with several variants first seen in September 2019.

    • MedusaLocker payload

    • UAC bypass

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

    • Executes dropped EXE

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Checks whether UAC is enabled

    • 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 v6

Tasks