Malicious PDF — malware analysis report

Static analysis result for SHA-256 69c953926d938b95…

MALICIOUS

PDF

44.4 KB Created: 2018-12-15 08:52:37 +03:00 Authoring application: pdftk 1.44 - www.pdftk.com (via itext-paulo-155 (itextpdf.sf.net-lowagie.com))
MD5: 880ad72665c9fd957eab2666ce5b6301 SHA-1: e6b5fc50ddd346bd101e1f5b95f47e0d8096b528 SHA-256: 69c953926d938b95000dfc3d0e37db78e3824e5047656f83e9af410d1a9c2387
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, as indicated by the PDF_SEO_LINK_FARM heuristic. This suggests a link-farming or SEO manipulation tactic, potentially to distribute further malicious content or improve the ranking of malicious sites. While no scripts were explicitly extracted, the nature of the embedded links and the ML_NYX_PDF_MALICIOUS and CLAMAV_DETECTION firings strongly indicate malicious intent, likely as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9016

Heuristics 3

  • 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.
  • ClamAV: Pdf.Dropper.Agent-7006101-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7006101-0
  • 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/sea-of-time.pdf
    • http://www.gorillawalker.com/scott-joplin-king-of-ragtime-inspiring-lives.pdf
    • http://www.gorillawalker.com/densification-of-crop-residues-based-complete-feed-for-livestock-comparative.pdf
    • http://www.gorillawalker.com/from-extrasolar-planets-to-cosmology-the-vlt-opening-symposium-proceedings.pdf
    • http://www.gorillawalker.com/housetraining-for-dummies.pdf
    • http://www.gorillawalker.com/catechism-for-young-children-questions-1-30-bible-story-and.pdf
    • http://www.gorillawalker.com/the-foucault-reader.pdf
    • http://www.gorillawalker.com/dyslexia-a-parents-guide-to-dyslexia-dyspraxia-and-other-learning.pdf
    • http://www.gorillawalker.com/selected-papers-i-springer-collected-works-in-mathematics.pdf
    • http://www.gorillawalker.com/the-greenhaven-encyclopedias-of-witchcraft.pdf
    • http://www.gorillawalker.com/me-gusta-mi-orinal-spanish-edition.pdf
    • http://www.gorillawalker.com/how-arcturians-are-healing-planet-earth.pdf
    • http://www.gorillawalker.com/cracking-cryptic-crosswords-by-dexter-colin-2009-paperback.pdf
    • http://www.gorillawalker.com/gordon-ramsay-s-world-kitchen-easy-and-delicious-new-twists.pdf
    • http://www.gorillawalker.com/my-story-an-autobiography-of-a-transgender-ftm-kindle-edition.pdf
    • http://www.gorillawalker.com/lunch-a-history-the-meals-series.pdf
    • http://www.gorillawalker.com/law-in-sport-concepts-and-cases-sports-management-library.pdf
    • http://www.gorillawalker.com/the-time-of-chaos-the-survivors.pdf
    • http://www.gorillawalker.com/for-the-love-of-a-child.pdf
    • http://www.gorillawalker.com/down-by-the-station-sing-along-songs.pdf
    • http://www.gorillawalker.com/santa-fe-new-mexico-santa-fe-county-street-map.pdf
    • http://www.gorillawalker.com/playing-the-game-how-triple-h-became-the-heir-apparent.pdf
    • http://www.gorillawalker.com/lithium-treatment-of-manic-depressive-illness-a-practical-guide.pdf
    • http://www.gorillawalker.com/exploring-end-time-events-in-the-revelation-of-jesus-christ.pdf
    • http://www.gorillawalker.com/practical-nlp-2-language-how-to-use-presuppositions-chunking-the.pdf
    • http://www.gorillawalker.com/barbara-barber-s-solos-for-young-violinists-volume-5-set.pdf
    • http://www.gorillawalker.com/greek-recipes-clean-eats-kindle-edition.pdf
    • http://www.gorillawalker.com/surface-coatings-volume-i-raw-materials-and-their-usage-v.pdf
    • http://www.gorillawalker.com/the-rough-guide-to-kenya-rough-gt-kenya-8-e.pdf
    • http://www.gorillawalker.com/explaining-photosynthesis-models-of-biochemical-mechanisms-1840-1960-history-philosophy.pdf
    • http://www.gorillawalker.com/spectral-methods-in-fluid-dynamics-scientific-computation.pdf
    • http://www.gorillawalker.com/the-dreamwork-manual-a-step-by-step-introduction-to-working.pdf
    • http://www.gorillawalker.com/the-theory-of-free-banking.pdf
    • http://www.gorillawalker.com/the-master-guide-to-food-safety-food-poisoning-prevention.pdf
    • http://www.gorillawalker.com/a-badge-in-his-pocket-and-a-banjo-on-his.pdf
    • http://www.gorillawalker.com/history-of-philosophy-late-mediaeval-and-renaissance-philosophy-vol-3.pdf
    • http://www.gorillawalker.com/our-road-to-family-an-adoption-story.pdf
    • http://www.gorillawalker.com/clinician-s-guide-to-assistive-technology-1st-edition.pdf
    • http://www.gorillawalker.com/oedipus-tyrannus-tragic-heroism-and-the-limits-of-knowledge.pdf
    • http://www.gorillawalker.com/construction-of-architecture-from-design-to-built.pdf
    • 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.