General

  • Target
    filecleaner_setup.exe
  • Size 5.6MB
  • Sample260909-jg7c2atzcs
  • SHA256 8d10322d48c94657bab8df76d0a403ef35471304334069270af15da3a61c8e1e
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      filecleaner_setup.exe
    • Size 5.6MB
    • SHA256 8d10322d48c94657bab8df76d0a403ef35471304334069270af15da3a61c8e1e
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • 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.

    • 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.

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • Drops desktop.ini file(s)

    • Enumerates connected drives

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

    • Mark of the Web detected: This indicates that the page was originally saved or cloned.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v16

Tasks