General

  • Target

    https://ptoszek.pl

  • Sample

    250222-bakaxsvmbl

Malware Config

Targets

    • BadRabbit

      Ransomware family discovered in late 2017, mainly targeting Russia and Ukraine.

    • Badrabbit family

    • Mimikatz

      mimikatz is an open source tool to dump credentials on Windows.

    • Mimikatz family

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Modifies boot configuration data using bcdedit

    • mimikatz is an open source tool to dump credentials on Windows

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Legitimate hosting services abused for malware hosting/C2

MITRE ATT&CK Enterprise v15

Tasks