General

  • Target
    OInstall.exe
  • Size 10.9MB
  • Sample261026-wvpflagv8j
  • SHA256 414155bf11893ec64ba0f4ffb7de92885090845a0761cf8f6743462aa5991d5e
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

    http://officecdn.microsoft.com/pr/492350f6-3a01-4f97-b9c0-c7c6ddf67d60/Office/Data/v32.cab

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

    http://officecdn.microsoft.com/pr/492350f6-3a01-4f97-b9c0-c7c6ddf67d60/Office/Data/16.0.20527.20088/i640.cab

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

    http://officecdn.microsoft.com/pr/492350f6-3a01-4f97-b9c0-c7c6ddf67d60/Office/Data/16.0.20527.20088/i641033.cab

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

    http://officecdn.microsoft.com/pr/492350f6-3a01-4f97-b9c0-c7c6ddf67d60/Office/Data/v32.cab

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

    http://officecdn.microsoft.com/pr/492350f6-3a01-4f97-b9c0-c7c6ddf67d60/Office/Data/16.0.20527.20088/i640.cab

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

    http://officecdn.microsoft.com/pr/492350f6-3a01-4f97-b9c0-c7c6ddf67d60/Office/Data/16.0.20527.20088/i641033.cab

Targets

    • Target
      OInstall.exe
    • Size 10.9MB
    • SHA256 414155bf11893ec64ba0f4ffb7de92885090845a0761cf8f6743462aa5991d5e
    • 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

    • Stops running service(s)

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Checks system information in the registry

      System information is often read in order to detect sandboxing environments.

    • Drops file in System32 directory

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

MITRE ATT&CK Enterprise v16

Tasks