General

  • Target
    DS for Windows_20740.exe
  • Size 757KB
  • Sample261030-eccweaws6n
  • SHA256 92ad1b3bb31cf3eb7c4a4fee45342aa96ee11f4896e03d3ad77029ee92052822
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      DS for Windows_20740.exe
    • Size 757KB
    • SHA256 92ad1b3bb31cf3eb7c4a4fee45342aa96ee11f4896e03d3ad77029ee92052822
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Downloads MZ/PE file

    • Manipulates Digital Signatures

      Attackers can apply techniques such as modifying certain DLL exports to make their binary seem valid.

    • 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.

    • Writes a Windows system DLL name to a user directory

      A module named after a system DLL outside System32 can be loaded instead of the real one by a program searching that directory.

    • 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.

    • Checks whether UAC is enabled

    • Contacts third-party web service commonly abused for C2

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

    • Enumerates connected drives

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

    • Network Share Discovery

      Attempt to gather information on host network.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v16

Tasks