Malicious PDF — malware analysis report

Static analysis result for SHA-256 736c5fa353928ba9…

MALICIOUS

PDF

16.0 KB Created: 2019-04-30 04:18:02 +01:00 Authoring application: mPDF 5.7
MD5: 4f20b01438f7b3f632e43b511cba4d03 SHA-1: 61e3e87db762bedce890638ef130b11f8ba6b4d9 SHA-256: 736c5fa353928ba989a6d72a629921eff76356d1ec6f22280270b0a36d7542dd
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs, identified as a link farm. While the document body is unreadable, the heuristic 'PDF_SEO_LINK_FARM' indicates the primary purpose is to host numerous external links. The ML classifier also flagged the PDF as malicious. The presence of embedded links suggests a potential for distributing malicious content or for SEO manipulation, aligning with a spearphishing attachment tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9898

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/1097093090092/False-Prophets-Wallace-Mahoney-5-by-Sean-Flannery.pdf
    • http://loaminoo.linkpc.net/1097092096099/Broken-Idols-Wallace-Mahoney-4-by-Sean-Flannery.pdf
    • http://loaminoo.linkpc.net/1095093099091/The-Kremlin-Conspiracy-Wallace-Mahoney-1-by-Sean-Flannery.pdf
    • http://loaminoo.linkpc.net/9097091093095099/False-Prophets-of-Peace-by-Tikva-Honig-Parnass.pdf
    • http://loaminoo.linkpc.net/7094094099095095/Kilo-Option-Bill-Lane-2-by-Sean-Flannery.pdf
    • http://loaminoo.linkpc.net/3097096091094093/A-False-Dawn-Sean-O-Brien-1-by-Tom-Lowe.pdf
    • http://loaminoo.linkpc.net/5094091099094097/Jabberwocky-5-by-Sean-Wallace.pdf
    • http://loaminoo.linkpc.net/4090098095098091/The-Mammoth-Book-of-Dieselpunk-by-Sean-Wallace.pdf
    • http://loaminoo.linkpc.net/3092099093091092/The-Mammoth-Book-of-Steampunk-by-Sean-Wallace.pdf
    • http://loaminoo.linkpc.net/4097094095095094/Moonlight-Murder-The-Last-Poetic-Prose-of-D-B-Wallace-by-D-B-Wallace.pdf
    • http://loaminoo.linkpc.net/9098096091097093/How-to-Read-and-Understand-the-Biblical-Prophets-How-to-Read-and-Understand-the-Biblical-Prophets-by-Peter-J-Gentry.pdf
    • http://loaminoo.linkpc.net/7097090090095092/BEN-HUR-THE-FAIR-GOD-amp-THE-PRINCE-OF-INDIA-or-Why-Constantinople-Fell-LEW-WALLACE-PREMIUM-COLLECTION-Timeless-Wisdom-Collection-Book-1825-by-Lew-Wallace.pdf
    • http://loaminoo.linkpc.net/3095093093092092/Cody-s-Dragon-by-K-M-Mahoney.pdf
    • http://loaminoo.linkpc.net/1091090096096095/The-Wanderers-by-Cheryl-Mahoney.pdf
    • http://loaminoo.linkpc.net/4091098095096097/The-Lonely-Heart-by-K-M-Mahoney.pdf
    • http://loaminoo.linkpc.net/4094095090092092/Here-and-Now-by-Constance-O-39-Day-Flannery.pdf
    • http://loaminoo.linkpc.net/1093097095/Bell-Weather-by-Dennis-Mahoney.pdf
    • http://loaminoo.linkpc.net/3091096099090095/Falling-to-Ash-Moth-1-by-Karen-Mahoney.pdf
    • http://loaminoo.linkpc.net/2090093094099091/The-Storyteller-and-Her-Sisters-by-Cheryl-Mahoney.pdf
    • http://loaminoo.linkpc.net/7096093096092091/Interned-in-Germany-by-Henry-C-Mahoney.pdf

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