Malicious PDF — malware analysis report

Static analysis result for SHA-256 8bea01cc7fc543bf…

MALICIOUS

PDF

42.4 KB Created: 2019-03-17 11:02:44 +03:00 Authoring application: TeX (via MiKTeX pdfTeX-1.40.9)
MD5: a6279cd4210d57c1cfba6fcc7ed4e56f SHA-1: 61d4aacb3254f8c93261fe6af31ece9f2ebb16b6 SHA-256: 8bea01cc7fc543bf54446c95b36db1aa8cdfc488473b26aacccf5a8478d67c0b
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 pointing to external PDF files on the domain 'gorillawalker.com'. This behavior is indicative of a link farm or SEO manipulation tactic, which can be used to distribute malicious content or drive traffic to malicious sites. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9027

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/tommy-igoe-groove-essentials-2-0-bk-cd-dvd.pdf
    • http://www.gorillawalker.com/buffalo-bird-girl-a-hidatsa-story.pdf
    • http://www.gorillawalker.com/ecstasy-mage.pdf
    • http://www.gorillawalker.com/gallery-of-best-cover-letters.pdf
    • http://www.gorillawalker.com/host-response-to-biomaterials-the-impact-of-host-response-on.pdf
    • http://www.gorillawalker.com/peer-abuse-know-more-bullying-from-a-psychological-perspective.pdf
    • http://www.gorillawalker.com/my-life-undecided.pdf
    • http://www.gorillawalker.com/dental-clinics-of-north-america-january-1976-periodontics.pdf
    • http://www.gorillawalker.com/seeing-language-in-sign-the-work-of-william-c-stokoe.pdf
    • http://www.gorillawalker.com/drawing-problems-and-solutions.pdf
    • http://www.gorillawalker.com/california-golf-the-complete-guide-1996-1997-6th-ed.pdf
    • http://www.gorillawalker.com/it-s-perfectly-normal-the-family-library.pdf
    • http://www.gorillawalker.com/robert-the-bruce-guardians-trilogy.pdf
    • http://www.gorillawalker.com/120-audubon-bird-prints-dover-electronic-clip-art-cd-rom.pdf
    • http://www.gorillawalker.com/tao-haiku-employing-the-magick-of-the-i-ching-through.pdf
    • http://www.gorillawalker.com/divorce-hangover.pdf
    • http://www.gorillawalker.com/troubling-nationhood-in-u-s-latina-literature-explorations-of-place.pdf
    • http://www.gorillawalker.com/mushroom-growing.pdf
    • http://www.gorillawalker.com/your-guide-to-type-2-diabetes-your-health-companion-books.pdf
    • http://www.gorillawalker.com/back-in-the-daze-of-the-dog-star-adventures-in.pdf
    • http://www.gorillawalker.com/pure-of-heart-kindle-edition.pdf
    • http://www.gorillawalker.com/the-sherlock-legacy-kindle-edition.pdf
    • http://www.gorillawalker.com/acts-an-exegetical-commentary-24-1-28-31.pdf
    • http://www.gorillawalker.com/winning-chess-tournaments-methods-and-materials-training-guide.pdf
    • http://www.gorillawalker.com/graveyard-of-the-atlantic-shipwrecks-of-the-north-carolina-coast.pdf
    • http://www.gorillawalker.com/ny-regents-prep-test-chemistry-the-physical-setting-flash-cards.pdf
    • http://www.gorillawalker.com/bien-dit-vocabulary-and-grammar-workbook-student-edition-level-2.pdf
    • http://www.gorillawalker.com/soccer-mom-sex-club-1-soccer-mom-sex-club-series.pdf
    • http://www.gorillawalker.com/reckoning-the-quarter-boys-volume-5.pdf
    • http://www.gorillawalker.com/dictionary-of-legal-commercial-and-political-terms-vol-2-german.pdf
    • http://www.gorillawalker.com/george-a-trenholm-financial-genius-of-the-confederacy-his-associates.pdf
    • http://www.gorillawalker.com/terrorism-coverage-for-commercial-lines-dearborn-career-development.pdf
    • http://www.gorillawalker.com/are-you-calling-me-being-a-disciple-of-christ.pdf
    • http://www.gorillawalker.com/100-sniper-exercises.pdf
    • http://www.gorillawalker.com/storied-italy-kindle-edition.pdf
    • http://www.gorillawalker.com/reconstruction-during-the-civil-war-in-the-united-states-of.pdf
    • http://www.gorillawalker.com/more-movin-machines-novelty.pdf
    • http://www.gorillawalker.com/elliptic-curves-modular-forms-and-their-l-functions-student-mathematical.pdf
    • http://www.gorillawalker.com/nishimuramizuhotyouzetsubisyoujononatsukazeyukata-japanese-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/your-cheating-wife-a-cuckolding-confession.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/