Malicious PDF — malware analysis report

Static analysis result for SHA-256 59714e3684770fc1…

MALICIOUS

PDF

140.7 KB Created: 2016-12-15 17:55:00 UTC Authoring application: WPS Office_10.2.0.5996_F1E327BC-269C-435d-A152-05C5408002CA (via Aspose.Words for .NET 17.10)
MD5: 5bbaaf5283f8143a63aa0fbcc90ad598 SHA-1: b51c050994cb49df7a198c4609673d808576d1be SHA-256: 59714e3684770fc144cb93d558217df613dc644a630cfc46708bc5377ce8cd8e
100 Risk Score

Malware Insights

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

The PDF file is structured as an image-only lure, designed to trick the user into clicking a link. The embedded action triggers a redirect via a URL shortener to a secondary URL. This technique is commonly used for phishing or malware delivery.

Heuristics 4

  • Image-only PDF lure links through URL shortener high PDF_IMAGE_LURE_SHORTENER_LINK
    PDF is image-heavy with little real text and its clickable action points to a URL shortener. This is a high-confidence credential-phishing carrier shape: the visible page is a screenshot-like prompt while the destination is hidden behind redirect infrastructure.
  • Clickable PDF combines external action with parser-evasion structure high PDF_ACTION_PARSER_EVASION
    PDF has an external clickable URI together with object graph or xref structures that make parsers disagree, such as divergent duplicate objects, parser divergence, or xref offset mismatch. That combination is stronger than a plain link: the document is both an outward-action carrier and a parser-confusion/evasion sample.
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 2 image(s), only 0 text block(s), carries a click-outward action, and is only 140 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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 https://riberythieryattorneysfirm.com/file/nD
    • http://bit.ly/2m72QD6
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/

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