General

  • Target
    paystub-details.zip
  • Size 1KB
  • Sample261006-w2xesafh76
  • SHA256 13f5084862e00b17d85d3e0edfcd38eafd788c7623e9e499ae62a03f8754d068
  • MD5 SHA1 SHA512 TLSH

Malware Config

Extracted

Language
  • ps1

Source
URLs
  • exe.dropper

    https://update.microsoft.com

Extracted

Language
  • ps1

Source
URLs
  • exe.dropper

    https://us-cdn.action1.com/builtin/00000000-0000-0000-0000-000000000000_0000000000000_builtin/file.dat

  • exe.dropper

    https://eu-cdn.action1.com/builtin/00000000-0000-0000-0000-000000000000_0000000000000_builtin/file.dat

  • exe.dropper

    https://au-cdn.action1.com/builtin/00000000-0000-0000-0000-000000000000_0000000000000_builtin/file.dat

  • exe.dropper

    https://ifconfig.me/ip

Targets

    • Target
      Paystub.vbs
    • Size 6KB
    • SHA256 f346e232d99946b08347a80848a56b42a5248eb450f53c32a6fcb14f8e766199
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Badlisted process makes network request

      Network request originating from process or tool commonly abused by malware.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Checks installed software on the system

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

    • Enumerates connected drives

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

    • Indicator Removal: File Deletion

      Adversaries may delete files left behind by the actions of their intrusion activity.

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Drops file in System32 directory

    • Executes a VBScript file via the Windows Script Host.

MITRE ATT&CK Enterprise v16

Tasks