Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a6cd95dbecc1637…

MALICIOUS

PDF

46.2 KB Created: 2018-12-02 10:56:26 +03:00 Authoring application: Word (via Acrobat PDFMaker 15 for Word)
MD5: 7eb97f0231b7fde8e223b75edd1ad2ac SHA-1: 5b8d0422338c46af71f898537a5219864bce6fc7 SHA-256: 2a6cd95dbecc1637001267f546fb67806325acce580a6a2ba71fa43187755952
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links to external PDF files, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged this PDF as malicious. The document body is heavily obfuscated and unreadable, but the presence of numerous links to external PDFs suggests a link farm or distribution mechanism. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8634

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/illustrating-for-science-a-problem-solving-approach-to-rendering-subjects.pdf
    • http://www.gorillawalker.com/remembering-well-rituals-for-celebrating-life-and-mourning-death.pdf
    • http://www.gorillawalker.com/christian-worship-its-theology-and-practice-third-edition.pdf
    • http://www.gorillawalker.com/the-dissolution-of-the-austro-hungarian-empire-1867-1918-2nd.pdf
    • http://www.gorillawalker.com/images-of-the-milford-track.pdf
    • http://www.gorillawalker.com/food-of-portugal.pdf
    • http://www.gorillawalker.com/cystic-fibrosis-the-brewer-s-yeast-a-microbiology-tale.pdf
    • http://www.gorillawalker.com/generations-of-somerset-place-from-slavery-to-freedom-images-of.pdf
    • http://www.gorillawalker.com/the-foundations-of-western-civilzation-parts-1-4-8-dvds.pdf
    • http://www.gorillawalker.com/discovery-of-the-ultimate-superfood-how-the-ningxia-wolfberry-and.pdf
    • http://www.gorillawalker.com/easy-crossword-puzzles-for-adults.pdf
    • http://www.gorillawalker.com/the-early-byzantine-historians.pdf
    • http://www.gorillawalker.com/animal-behavior-volume-i-halliday-s.pdf
    • http://www.gorillawalker.com/barbarous-souls.pdf
    • http://www.gorillawalker.com/joe-chiodo-drawings-and-paintings-2008.pdf
    • http://www.gorillawalker.com/audel-hvac-fundamentals-volume-2-heating-system-components-gas-and.pdf
    • http://www.gorillawalker.com/a-danish-parsonage.pdf
    • http://www.gorillawalker.com/ditch-of-dreams-the-cross-florida-barge-canal-and-the.pdf
    • http://www.gorillawalker.com/deformation-and-fracture-mechanics-of-engineering-materials-by-hertzberg-richard.pdf
    • http://www.gorillawalker.com/audit-of-assumptions-for-the-2009-pre-budget-report-report.pdf
    • http://www.gorillawalker.com/chief-john-ross-native-american-biographies-heinemann.pdf
    • http://www.gorillawalker.com/bethlem-royal-and-maudsley-hospital-manual-of-clinical-mental-health.pdf
    • http://www.gorillawalker.com/telementation-cosmic-feeling-the-law-of-attraction-by-grupp-professor.pdf
    • http://www.gorillawalker.com/the-body-reset-diet-power-your-metabolism-blast-fat-and.pdf
    • http://www.gorillawalker.com/early-egyptian-records-of-travel.pdf
    • http://www.gorillawalker.com/apocryphal-gospels-acts-and-revelations-vol-1-of-3-classic.pdf
    • http://www.gorillawalker.com/the-actor-with-a-thousand-faces-paperback-book-applause-acting.pdf
    • http://www.gorillawalker.com/subnational-democracy-in-the-european-union-challenges-and-opportunities.pdf
    • http://www.gorillawalker.com/converse-all-star-football-how-to-play-like-a-pro.pdf
    • http://www.gorillawalker.com/aliens-in-disguise-the-intergalactic-bed-breakfast-series.pdf
    • http://www.gorillawalker.com/manufacturing-planning-and-control-systems-for-supply-chain-management-the.pdf
    • http://www.gorillawalker.com/spiral-vol-1-the-bonds-of-reasoning-v-1.pdf
    • http://www.gorillawalker.com/scandinavian-proverbs.pdf
    • http://www.gorillawalker.com/solar-energy-fundamentals-and-design-with-computer-applications-alternate-energy.pdf
    • http://www.gorillawalker.com/social-relations-and-the-cuban-health-miracle.pdf
    • http://www.gorillawalker.com/england-to-australia-success-or-failure.pdf
    • http://www.gorillawalker.com/antitrust-law-index-and-tables-pamphlet-2010-edition-volumes-1.pdf
    • http://www.gorillawalker.com/sauntering-through-colorful-shanghai.pdf
    • http://www.gorillawalker.com/heidelberg-city-panoramas-360.pdf
    • http://www.gorillawalker.com/star-trek-omnibus-the-original-series.pdf
    • http://www.gorillawalker.com/the-dissolution-of-the-austro-hung
    • 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/

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