Malicious PDF — malware analysis report

Static analysis result for SHA-256 86c3dfe04928c511…

MALICIOUS

PDF

174.3 KB Created: 2017-11-22 13:44:49 +02:00 Authoring application: Microsoft® Word 2016
MD5: dfd72a09e5e5447dbb6fe5067bc05598 SHA-1: 4e60698417373ff33e0185c28c4e0fc463ae7a47 SHA-256: 86c3dfe04928c5111d71d00da2f2355c538abd44b9e248481c253dc693a240bd
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file is identified as a malicious dropper by ClamAV. It employs a common phishing tactic by presenting itself as an image-only document, likely a screenshot, to entice users into clicking a link. This link, http://ewhitelist.com/folder/indinsgrp/DOCsignsecured/DOCsignsecured/dsign/, is the primary indicator of compromise and is suspected to lead to further malicious activity, such as malware download.

Machine Learning

  • Nyx PDF Classifier clean score 0.0464

Heuristics 4

  • ClamAV: Pdf.Dropper.Agent-7279161-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7279161-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 174 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://ewhitelist.com/folder/indinsgrp/DOCsignsecured/DOCsignsecured/dsign/
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://ns.adobe.com/pdf/1.3/
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/

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