Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d2de33f908ea35d…

MALICIOUS

PDF

14.0 KB Created: 2019-04-30 04:40:52 +01:00 Authoring application: mPDF 5.7
MD5: 23d5ba8dd9e3ba914dee84af2534265f SHA-1: c2b0137f39be0f150e43f77b665215396d861e5c SHA-256: 6d2de33f908ea35d88a032f54f49f71c551f2b4ea70d0ecc482371d24a88c4fb
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs, forming a link farm. This is indicative of a phishing or SEO poisoning attack, aiming to direct users to potentially malicious content. The ML classifier also flagged this PDF as malicious, supporting this assessment. No scripts were extracted, and the document body was heavily obfuscated, preventing further analysis of specific user-facing lures.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9891

Heuristics 2

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://loaminoo.linkpc.net/1091099096096095099/Sins-of-the-Father-Runaway-Girl-Series-3-by-Emily-Organ.pdf
    • http://loaminoo.linkpc.net/1091099096096091099/The-Inventor-Penny-Green-Series-Book-4-by-Emily-Organ.pdf
    • http://loaminoo.linkpc.net/3095098096098095/The-Outsider-by-Emily-Organ.pdf
    • http://loaminoo.linkpc.net/1090099097095090098/The-Outsider-by-Emily-Organ.pdf
    • http://loaminoo.linkpc.net/1091097094095/Sins-of-the-Heart-The-Sins-Series-1-by-Eve-Silver.pdf
    • http://loaminoo.linkpc.net/1091099096096092090/Curse-of-the-Poppy-Penny-Green-5-by-Emily-Organ.pdf
    • http://loaminoo.linkpc.net/1097097092091093/Sins-of-the-Father-by-R-J-Palmer.pdf
    • http://loaminoo.linkpc.net/1094094096094098/Sins-of-the-Father-by-Norah-McClintock.pdf
    • http://loaminoo.linkpc.net/2096091092092094/Sins-of-the-Father-by-Jaid-Black.pdf
    • http://loaminoo.linkpc.net/4096092093094098/Sins-of-the-Father-by-Anna-O-39-Neill.pdf
    • http://loaminoo.linkpc.net/4090099096098096/The-Sins-of-the-Father-by-Jeffrey-Archer.pdf
    • http://loaminoo.linkpc.net/3097096099090098/The-Sins-of-Our-Father-by-Kate-A-Knight.pdf
    • http://loaminoo.linkpc.net/2095095097098094/Sins-of-the-Father-Angel-and-the-Assassin-3-by-Fyn-Alexander.pdf
    • http://loaminoo.linkpc.net/2098095092096/Sins-of-the-Father-Ravage-Riders-MC-1-by-Nikki-Landis.pdf
    • http://loaminoo.linkpc.net/9099099092093099/Sins-of-the-Father-Erin-Solomon-Mystery-2-by-Jen-Blood.pdf
    • http://loaminoo.linkpc.net/4098093099097092/Sins-of-the-Father-Heaven-s-Rejects-MC-0-5-by-Avelyn-Paige.pdf
    • http://loaminoo.linkpc.net/4099096098098/Father-of-Emily-by-Kristofer-Oliver.pdf
    • http://loaminoo.linkpc.net/8093096091099098/Runaway-The-Outsider-Series-5-by-Lorhainne-Eckhart.pdf
    • http://loaminoo.linkpc.net/3097092094092098/Collected-Poems-of-Emily-Dickinson-Barnes-Noble-Classics-Series-by-Emily-Dickinson.pdf
    • http://loaminoo.linkpc.net/7095092097091096/Runaway-Groom-The-Logan-Series-1-by-Sally-Clements.pdf

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