Malicious PDF — malware analysis report

Static analysis result for SHA-256 657b5cabc4e750fe…

MALICIOUS

PDF

17.2 KB Created: 2019-04-30 04:16:24 +01:00 Authoring application: mPDF 5.7
MD5: 7349284c7abde99f92f3c99f5549c2b4 SHA-1: 8c379dc23aa3882357d43cf06265759c858729ad SHA-256: 657b5cabc4e750fee467cb1f4983f36bf6fead6badf775d6667e06f43c04ef33
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 that directs users to external PDF documents. This behavior is indicative of a SEO poisoning or spamming campaign, aiming to drive traffic to specific content. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9925

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/7090092097095099/The-Poisonwood-Bible-Barnes-and-Noble-Reader-s-Companion-by-Barbara-Kingsolver.pdf
    • http://loaminoo.linkpc.net/2098094099090095/Novels-by-Barbara-Kingsolver-The-Bean-Trees-Pigs-in-Heaven-the-Poisonwood-Bible-Animal-Dreams-Prodigal-Summer-by-Books-LLC.pdf
    • http://loaminoo.linkpc.net/5090092096097095/The-Lacuna-by-Barbara-Kingsolver.pdf
    • http://loaminoo.linkpc.net/3091090095099098/The-Lacuna-by-Barbara-Kingsolver.pdf
    • http://loaminoo.linkpc.net/3099099096099092/Animal-Dreams-by-Barbara-Kingsolver.pdf
    • http://loaminoo.linkpc.net/6091094091097095/L-Arbre-aux-haricots-by-Barbara-Kingsolver.pdf
    • http://loaminoo.linkpc.net/2096090094090098/Animal-Dreams-by-Barbara-Kingsolver.pdf
    • http://loaminoo.linkpc.net/1096099093092095/Pigs-in-Heaven-by-Barbara-Kingsolver.pdf
    • http://loaminoo.linkpc.net/6094096093093/Homeland-and-Other-Stories-by-Barbara-Kingsolver.pdf
    • http://loaminoo.linkpc.net/4096094093096091/Flight-Behavior-by-Barbara-Kingsolver.pdf
    • http://loaminoo.linkpc.net/3092096092091/Prodigal-Summer-by-Barbara-Kingsolver.pdf
    • http://loaminoo.linkpc.net/4097095090095096/Animal-Vegetable-Miracle-by-Barbara-Kingsolver.pdf
    • http://loaminoo.linkpc.net/7093091099093090/Les-Yeux-dans-les-arbres-by-Barbara-Kingsolver.pdf
    • http://loaminoo.linkpc.net/2092096093092092/Animal-Vegetable-Miracle-A-Year-of-Food-Life-by-Barbara-Kingsolver.pdf
    • http://loaminoo.linkpc.net/4098094092097095/Animal-Vegetable-Miracle-A-Year-of-Food-Life-by-Barbara-Kingsolver.pdf
    • http://loaminoo.linkpc.net/3093091097095/Animal-Vegetable-Miracle-A-Year-of-Food-Life-by-Barbara-Kingsolver.pdf
    • http://loaminoo.linkpc.net/3096090096098094/Another-America-Otra-America-by-Barbara-Kingsolver.pdf
    • http://loaminoo.linkpc.net/8090097097092099/King-James-The-Holy-Bible-the-bible-bible-bible-study-jesus-religion-religious-heaven-king-james-old-testament-new-testament-prayer-books-christian-by-Anonymous.pdf
    • http://loaminoo.linkpc.net/1091097092090099095/The-Bible-Minute-One-Year-of-Concise-Bible-Studies-for-On-the-Go-Christians-by-Karin-Syren.pdf
    • http://loaminoo.linkpc.net/1091098098092093093/Read-the-Bible-for-a-Change-A-Follower-s-Guide-to-Reading-and-Responding-to-the-Bible-by-Ray-Lubeck.pdf

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