Malicious PDF — malware analysis report

Static analysis result for SHA-256 fee2821d52f2a3e1…

MALICIOUS

PDF

20.5 KB Created: 2019-04-30 04:44:43 +01:00 Authoring application: mPDF 5.7
MD5: 2055ccbfdb9b4b2a4f17491e38ac2c56 SHA-1: 298b103b1ba9e2893ebf838c8a6a551c153f2e6f SHA-256: fee2821d52f2a3e186d01fd24c85aae24f04f9c17cb866e35fc01c24ef8bddc6
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier strongly indicated maliciousness. No scripts were extracted, and the document body was heavily obfuscated, but the presence of a link farm suggests an attempt to direct users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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.n
    • http://loaminoo.linkpc.net/4093096093095092/Park-Ranger-Sequel-More-True-Stories-From-a-Ranger-s-Career-in-America-s-National-Parks-by-Nancy-Eileen-Muleady-Mecham.pdf
    • http://loaminoo.linkpc.net/5094093090091091/Bear-Bloopers-True-Stories-from-the-Great-Smoky-Mountains-National-Park-Smokies-Wildlife-Ranger-Book-4-by-Carolyn-Jourdan.pdf
    • http://loaminoo.linkpc.net/5094093090091092/Bear-in-the-Back-Seat-II-Adventures-of-a-Wildlife-Ranger-in-the-Great-Smoky-Mountains-National-Park-by-Carolyn-Jourdan.pdf
    • http://loaminoo.linkpc.net/2098097098091099/Bear-in-the-Back-Seat-I-Adventures-of-a-Wildlife-Ranger-in-the-Great-Smoky-Mountains-National-Park-by-Carolyn-Jourdan.pdf
    • http://loaminoo.linkpc.net/3095095091093090/Campfire-Stories-Tales-from-America-s-National-Parks-by-Dave-Kyu.pdf
    • http://loaminoo.linkpc.net/1091090098097090098/Ranger-McIntyre-Unmentionable-Murders-Ranger-McIntyre-1-by-James-C-Work.pdf
    • http://loaminoo.linkpc.net/1093094099096096/Ranger-s-Apprentice-7-volume-Set-Ranger-s-Apprentice-1-7-by-John-Flanagan.pdf
    • http://loaminoo.linkpc.net/4094092090090098/The-Lone-Ranger-Vol-1-The-Lone-Ranger-by-Brett-Matthews.pdf
    • http://loaminoo.linkpc.net/3097090094098/The-Lost-Stories-Ranger-s-Apprentice-11-by-John-Flanagan.pdf
    • http://loaminoo.linkpc.net/4091092093099/The-National-Parks-America-s-Best-Idea-by-Dayton-Duncan.pdf
    • http://loaminoo.linkpc.net/4093098091096095/The-10-Best-of-Everything-National-Parks-800-Top-Picks-From-Parks-Coast-to-Coast-by-National-Geographic-Society.pdf
    • http://loaminoo.linkpc.net/4093099090091095/Fodor-s-Complete-Guide-to-America-s-National-Parks-by-Fodor-39-s-Travel-Publications-Inc-.pdf
    • http://loaminoo.linkpc.net/6099099090093094/National-Geographic-Guide-to-the-National-Parks-of-the-United-States-by-National-Geographic-Society.pdf
    • http://loaminoo.linkpc.net/1099099094097090/The-Ranger-s-Secret-by-Rebecca-Winters.pdf
    • http://loaminoo.linkpc.net/8096095097/Texas-Ranger-by-James-Patterson.pdf
    • http://loaminoo.linkpc.net/4095090099094091/Rescued-by-the-Ranger-by-Dixie-Lee-Brown.pdf
    • http://loaminoo.linkpc.net/1096098093094/The-Ranger-Quinn-Colson-1-by-Ace-Atkins.pdf
    • http://loaminoo.linkpc.net/4090096091096091/A-Ranger-s-Tale-Tallenmere-1-by-Mysti-Parker.pdf
    • http://loaminoo.linkpc.net/6092092095097/Ranger-Mosby-by-Virgil-Carrington-Jones.pdf
    • http://loaminoo.linkpc.net/4099090095096094/The-Forest-Ranger-s-Return-by-Leigh-Bale.pdf

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