General

  • Target
    @Wanna.BuddyMemes.win.zip
  • Size 5.7MB
  • Sample240309-vszm4sda87
  • SHA256 1cb1619eb5345a3d8d6aca8a8d221b523aadb3c59ae4778d4d471b22503caa5c
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Targets

    • Target
      @Wanna.BuddyMemes.win.zip
    • Size 5.7MB
    • SHA256 1cb1619eb5345a3d8d6aca8a8d221b523aadb3c59ae4778d4d471b22503caa5c
    • MD5 SHA1 SHA512 SSDEEP
    Score
    1/10
    • Target
      Bonzify.exe
    • Size 6.4MB
    • SHA256 66f62408dfce7c4a5718d2759f1d35721ca22077398850277d16e1fca87fe764
    • MD5 SHA1 SHA512 SSDEEP
    • Modifies AppInit DLL entries

    • Modifies Installed Components in the registry

    • Possible privilege escalation attempt

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • Adds Run key to start application

    • Checks installed software on the system

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

    • Enumerates connected drives

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

    • Drops file in System32 directory

    • Target
      LOVE-LETTER-FOR-YOU.TXT.vbs
    • Size 14KB
    • SHA256 b6dc96d48ee73fda299a8f8dac2335ed4bf710f5166ce093aa8734256a205569
    • MD5 SHA1 SHA512 SSDEEP
    Score
    1/10
    • Target
      MEMZ.exe
    • Size 16KB
    • SHA256 3872c12d31fc9825e8661ac01ecee2572460677afbc7093f920a8436a42e28ff
    • MD5 SHA1 SHA512 SSDEEP
    Score
    7/10
    • Checks computer location settings

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

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Target
      salinewin.exe
    • Size 283KB
    • SHA256 7163fefbf2f865ef78a2d3d4480532fffb979300d6f0a77b6f3fc5c4b0d2cada
    • MD5 SHA1 SHA512 SSDEEP
    • Disables Task Manager via registry modification

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

MITRE ATT&CK Enterprise v15

Tasks