Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce7f569d90e98828…

MALICIOUS

PDF

39.3 KB Created: 2018-12-07 18:27:23 +03:00 Authoring application: LaTeX with hyperref package (via dvips + ps2pdf)
MD5: 225e0fa7b9b2e11c0a0dea679fab2978 SHA-1: 600043c1d5a8f674bdff510d4d0dd80be359cd66 SHA-256: ce7f569d90e988285161f4a8fae3bc9f00163a7c350b35251ceb37481ac3c944
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier as malicious. Static analysis revealed a large number of embedded external links, a technique often used for SEO manipulation or to distribute further malicious content. The document body itself is heavily obfuscated and does not provide clear textual clues, but the presence of numerous links to PDFs hosted on 'gorillawalker.com' strongly suggests a link farm or redirection scheme.

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/the-sustainability-revolution-portrait-of-a-paradigm-shift.pdf
    • http://www.gorillawalker.com/stylecity-new-york-third-edition-stylecity.pdf
    • http://www.gorillawalker.com/the-climate-resolution-a-guide-to-local-authority-action-to.pdf
    • http://www.gorillawalker.com/valor-unsung-heroes-from-iraq-afghanistan-and-the-home-front.pdf
    • http://www.gorillawalker.com/the-social-climber-s-guide-to-high-school.pdf
    • http://www.gorillawalker.com/sex-and-bacon-why-i-love-things-that-are-very.pdf
    • http://www.gorillawalker.com/financial-management-core-concepts.pdf
    • http://www.gorillawalker.com/i-m-off-then-losing-and-finding-myself-on-the.pdf
    • http://www.gorillawalker.com/the-jazz-master.pdf
    • http://www.gorillawalker.com/waiting-for-curves-curves-for-her-wolf-bbw-erotic-romance.pdf
    • http://www.gorillawalker.com/answer-to-faustus-a-manichean-works-of-saint-augustine-numbered.pdf
    • http://www.gorillawalker.com/nccn-guidelines-for-patients-stage-0-breast-cancer.pdf
    • http://www.gorillawalker.com/drongo-s-guide-to-bbq-mastery-a-guide-for-the.pdf
    • http://www.gorillawalker.com/gender-and-the-uncanny-in-films-of-the-weimar-republic.pdf
    • http://www.gorillawalker.com/francesco-geminiani-1687-1762-part-1-life-and-works-part.pdf
    • http://www.gorillawalker.com/honor-begins-at-home-the-courageous-bible-study-member-book.pdf
    • http://www.gorillawalker.com/midwinter-upper-voice-vocal-score.pdf
    • http://www.gorillawalker.com/when-dreams-become-reality-why-i-went-and-never-came.pdf
    • http://www.gorillawalker.com/dreams-around-the-world.pdf
    • http://www.gorillawalker.com/the-gospel-according-to-star-wars-faith-hope-and-the.pdf
    • http://www.gorillawalker.com/entrepreneurship-a-process-perspective.pdf
    • http://www.gorillawalker.com/practicing-to-take-the-gre-psychology-test-the-only-guide.pdf
    • http://www.gorillawalker.com/katharine-gibbs-handbook-of-business-english.pdf
    • http://www.gorillawalker.com/banging-rebecca.pdf
    • http://www.gorillawalker.com/designing-geodatabases-for-transportation.pdf
    • http://www.gorillawalker.com/romeo-and-juliet-aqa-gcse-english-literature-set-texts.pdf
    • http://www.gorillawalker.com/lonely-planet-trekking-in-east-africa.pdf
    • http://www.gorillawalker.com/amazing-grace-urdu-and-english.pdf
    • http://www.gorillawalker.com/captain-s-purr.pdf
    • http://www.gorillawalker.com/television-the-public-sphere-and-national-identity.pdf
    • http://www.gorillawalker.com/autoconstitucion-y-libertad-spanish-edition.pdf
    • http://www.gorillawalker.com/clinical-pain-management.pdf
    • http://www.gorillawalker.com/a-life-full-of-holes-a-novel-tape-recorded-in.pdf
    • http://www.gorillawalker.com/bighorn-sheep-living-wild.pdf
    • http://www.gorillawalker.com/a-home-for-dakota-sit-stay-read.pdf
    • http://www.gorillawalker.com/wet-x-ray-a-medical-pregnant-lesbian-watersports-story.pdf
    • http://www.gorillawalker.com/minecraft-diary-of-a-wimpy-creeper-book-2-an-unofficial.pdf
    • http://www.gorillawalker.com/damned-in-paradise-nathan-heller-series.pdf
    • http://www.gorillawalker.com/lbk-realpolitik-an-archaeometric-study-of-conflict-and-social-structure.pdf
    • http://www.gorillawalker.com/how-to-get-a-girlfriend-dating-online-kindle-edition.pdf
    • http://www.gorillawalker.com/financial-management-co
    • 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.