General

  • Target

    testing.exe

  • Size

    1.1MB

  • Sample

    241225-q22fvavkcp

  • MD5

    2f6b9891e81a5c69016ef0565cb6f436

  • SHA1

    3445e6f4e58e294fe973c00e3abe50e1a72ccdde

  • SHA256

    3c848d6123bfb14ad845243fcccc754b3afedac7cf5bfcfddc0459586ef3768d

  • SHA512

    a1608ed020a9c5434735ef15738995cde75aeaff7a2ee6d1114ad0926037d692700330d6224f39736be6b8491ebcd3c0142a26a86b1cecc94c86b253a04f6667

  • SSDEEP

    24576:DImw98okVgela0as5CqLVO7XJCjkD3N0HRA:lL5ljasaU

Malware Config

Targets

    • Target

      testing.exe

    • Size

      1.1MB

    • MD5

      2f6b9891e81a5c69016ef0565cb6f436

    • SHA1

      3445e6f4e58e294fe973c00e3abe50e1a72ccdde

    • SHA256

      3c848d6123bfb14ad845243fcccc754b3afedac7cf5bfcfddc0459586ef3768d

    • SHA512

      a1608ed020a9c5434735ef15738995cde75aeaff7a2ee6d1114ad0926037d692700330d6224f39736be6b8491ebcd3c0142a26a86b1cecc94c86b253a04f6667

    • SSDEEP

      24576:DImw98okVgela0as5CqLVO7XJCjkD3N0HRA:lL5ljasaU

    • Avoslocker Ransomware

      Avoslocker is a relatively new ransomware, that was observed in late June and early July, 2021.

    • Avoslocker family

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Modifies boot configuration data using bcdedit

    • Renames multiple (10387) files with added filename extension

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

    • Checks computer location settings

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

    • Executes dropped EXE

    • 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