Malicious PDF — malware analysis report

Static analysis result for SHA-256 839fdddb3b459253…

MALICIOUS

PDF

41.3 KB Created: 2018-11-30 20:28:01 +03:00 Authoring application: AH XSL Formatter V6.2 MR5 for Windows (x64) : 6.2.7.18952 (via Antenna House PDF Output Library 6.2.625 (Windows (x64)))
MD5: c78f56cbe912e2e82e1b1661ce64fc5b SHA-1: 8252b786eb40643269023f5e845f22a44d75fea7 SHA-256: 839fdddb3b459253620ad689fbb5a0e76d7204d616ab48434156d57d166bb735
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged this PDF as malicious. The primary attack pattern appears to be a link farm designed to direct users to numerous external PDF documents hosted on www.gorillawalker.com. The exact purpose of these external links is unclear, but they are likely intended for SEO manipulation or to serve as a distribution point for further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9181

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://www.gorillawalker.com/santa-barbara-san-luis-obispo.pdf
    • http://www.gorillawalker.com/mammals-dorling-kindersley-handbooks.pdf
    • http://www.gorillawalker.com/tomes-of-terror-haunted-bookstores-and-libraries-kindle-edition.pdf
    • http://www.gorillawalker.com/clemson-university-101-my-first-text-board-book.pdf
    • http://www.gorillawalker.com/lost-in-familiar-places-creating-new-connections-between-the-individual.pdf
    • http://www.gorillawalker.com/extreme-metal-handbook.pdf
    • http://www.gorillawalker.com/just-in-time-accounting-how-to-decrease-costs-and-increase.pdf
    • http://www.gorillawalker.com/a-perilous-catch-the-history-of-commercial-fishing-history-s.pdf
    • http://www.gorillawalker.com/vegan-diet-live-green-kindle-edition.pdf
    • http://www.gorillawalker.com/eruption-of-permanent-teeth-a-color-atlas.pdf
    • http://www.gorillawalker.com/bmw-r850-1100-1150-4-valve-twins-93-to-06.pdf
    • http://www.gorillawalker.com/indoor-climbing-and-dry-tooling-with-information-relevant-to-the.pdf
    • http://www.gorillawalker.com/fanny-s-futa-threesome-semper-futanari-book-4.pdf
    • http://www.gorillawalker.com/babylonian-liver-omens-cni-publications-25.pdf
    • http://www.gorillawalker.com/sbas-for-the-part-1-mrcog.pdf
    • http://www.gorillawalker.com/the-hindu-family-and-the-emergence-of-modern-india-law.pdf
    • http://www.gorillawalker.com/macarthur-in-korea-the-naked-emperor.pdf
    • http://www.gorillawalker.com/l-odyssee-d-asterix.pdf
    • http://www.gorillawalker.com/best-ever-book-of-chocolate-luxurious-treats-for-total-indulgence.pdf
    • http://www.gorillawalker.com/cycling-today-part-ii.pdf
    • http://www.gorillawalker.com/daughters-of-silence-fear-street-saga-book-6-kindle-edition.pdf
    • http://www.gorillawalker.com/michelin-the-green-guide-portugal-2e-the-green-guide.pdf
    • http://www.gorillawalker.com/arizona-wildflowers-wildflower-series.pdf
    • http://www.gorillawalker.com/mog-on-fox-night.pdf
    • http://www.gorillawalker.com/managing-megacities.pdf
    • http://www.gorillawalker.com/pentateuch-international-perspectives-on-current-research-forschungen-zum-alten-testament.pdf
    • http://www.gorillawalker.com/my-gigolo-is-a-gabonese-tribesman-interracial-femdom-bimbofication-my.pdf
    • http://www.gorillawalker.com/the-theory-of-quantaloids-chapman-hall-crc-research-notes-in.pdf
    • http://www.gorillawalker.com/steps-on-the-path-to-enlightenment-karma-steps-on-the.pdf
    • http://www.gorillawalker.com/i-am-the-secret-teachings-of-the-aramaic-jesus.pdf
    • http://www.gorillawalker.com/vintage-postcards-of-new-york.pdf
    • http://www.gorillawalker.com/paper-artist-creations-kids-can-fold-tear-wear-or-share.pdf
    • http://www.gorillawalker.com/the-intimate-enemy-how-to-fight-fair-in-love-and.pdf
    • http://www.gorillawalker.com/futoshiki-9x9-hard-volume-10-276-puzzles.pdf
    • http://www.gorillawalker.com/covens-in-the-church-a-study-in-unity-rebellion-and.pdf
    • http://www.gorillawalker.com/the-jumblies.pdf
    • http://www.gorillawalker.com/vidal-sassoon-und-das-bauhaus.pdf
    • http://www.gorillawalker.com/scottish-wonder-tales-from-myth-and-legend.pdf
    • http://www.gorillawalker.com/polymer-mixing-a-self-study-guide.pdf
    • http://www.gorillawalker.com/strangers-to-these-shores-books-a-la-carte-edition-11th.pdf
    • http://www.gorillawalk
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://www.aiim.org/pdfa/ns/extension/
    • http://www.aiim.org/pdfa/ns/schema#
    • http://www.aiim.org/pdfa/ns/property#
    • http://www.aiim.org/pdfa/ns/id/

Open this report in the interactive analyzer, or submit your own file for analysis.