Overview

overview

8

Static

static

3

fn.exe

windows10-2004-x64

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General

  • Target
    fn.exe
  • Size 2.6MB
  • Sample240603-slf63sbf93
  • SHA256 69f704d06a87d998a7aaf635912c3c107f07bfade15d55b8ee3b65f1967b09f9
  • MD5 SHA1 SHA512 SSDEEP
Score
8/10
discoverypersistence

Malware Config

Targets

    • Target
      fn.exe
    • Size 2.6MB
    • SHA256 69f704d06a87d998a7aaf635912c3c107f07bfade15d55b8ee3b65f1967b09f9
    • MD5 SHA1 SHA512 SSDEEP
    Score
    8/10
    discoverypersistence

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Registers COM server for autorun

      persistence

    • Adds Run key to start application

      persistence

    • Checks installed software on the system

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

      discovery

    • Drops desktop.ini file(s)

    • Enumerates connected drives

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

    • Drops file in System32 directory

    behavioral1

MITRE ATT&CK Enterprise v15

Tasks