Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1b9fa91dfa5e06d…

MALICIOUS

PDF

42.4 KB Created: 2019-03-17 08:13:02 +03:00 Authoring application: - (via iText 2.1.7 by 1T3XT)
MD5: dd6271bd4b04dce8e59d30312b7f5b15 SHA-1: d41549287bdfe62b43d67a3668b8ee547583aa8d SHA-256: f1b9fa91dfa5e06d640b142b493636f18a9ad37c99ab8a4a2a8fc43c632ce41c
90 Risk Score

Malware Insights

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

The PDF heuristic 'PDF_SEO_LINK_FARM' indicates the presence of 32 external links, suggesting a malicious intent to manipulate search engine results or redirect users to potentially harmful content. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted, and the document body contained mostly obfuscated data, making it difficult to determine the exact payload. The primary attack pattern appears to be a link farm designed to distribute or mask malicious activity.

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/the-four-dragons-clearing-the-meridians-and-awakening-the-spine.pdf
    • http://www.gorillawalker.com/a-practical-path-to-a-prosperous-life-a-guide-to.pdf
    • http://www.gorillawalker.com/anyhow.pdf
    • http://www.gorillawalker.com/networked-art.pdf
    • http://www.gorillawalker.com/marin-napa-sonoma-99.pdf
    • http://www.gorillawalker.com/the-secret-teachings-of-all-ages-an-encyclopedic-outline-of.pdf
    • http://www.gorillawalker.com/khadija.pdf
    • http://www.gorillawalker.com/kanji-pict-o-graphix-over-1-000-japanese-kanji-and.pdf
    • http://www.gorillawalker.com/the-theory-of-evolution-and-dynamical-systems-mathematical-aspects-of.pdf
    • http://www.gorillawalker.com/managerial-accounting-instructor-s-manual-instructor-s-manual.pdf
    • http://www.gorillawalker.com/blind-spot-kindle-edition.pdf
    • http://www.gorillawalker.com/economy-of-words-communicative-imperatives-in-central-banks.pdf
    • http://www.gorillawalker.com/stay-on-track.pdf
    • http://www.gorillawalker.com/champagne-for-dummies.pdf
    • http://www.gorillawalker.com/pug-puppies-2015-square-12x12-multilingual-edition.pdf
    • http://www.gorillawalker.com/crisis-and-change-in-the-british-and-dutch-prison-services.pdf
    • http://www.gorillawalker.com/therapy-revolution-find-help-get-better-and-move-on-without.pdf
    • http://www.gorillawalker.com/literary-law-guide-for-authors-copyright-trademark-and-contracts-in.pdf
    • http://www.gorillawalker.com/the-abc-rhymes-interabc-kindle-edition.pdf
    • http://www.gorillawalker.com/etudes-critiques-sur-le-feuilleton-roman-1845-french-edition.pdf
    • http://www.gorillawalker.com/continuum-mechanics-aspects-of-geodynamics-and-rock-fracture-mechanics-proceedings.pdf
    • http://www.gorillawalker.com/eyewitness-explorers-weather-paperback.pdf
    • http://www.gorillawalker.com/code-civil-french-edition.pdf
    • http://www.gorillawalker.com/raymond-knister-an-annotated-bibliography-canadian-author-bibliographies.pdf
    • http://www.gorillawalker.com/cafe-society-the-wrong-place-for-the-right-people-music.pdf
    • http://www.gorillawalker.com/white-lies-the-arcane-society-book-2.pdf
    • http://www.gorillawalker.com/the-wonder-of-boys.pdf
    • http://www.gorillawalker.com/moral-clarity-a-guide-for-grown-up-idealists.pdf
    • http://www.gorillawalker.com/write-on-wipe-off-alphabet-fun.pdf
    • http://www.gorillawalker.com/man-myth-and-magic-the-illustrated-encyclopedia-of-mythology-religion.pdf
    • http://www.gorillawalker.com/tom-clancy-s-full-force-and-effect.pdf
    • http://www.gorillawalker.com/speech-enhancement-in-the-stft-domain-springerbriefs-in-electrical-and.pdf
    • http://www.gorillawalker.com/hey-charleston-the-true-story-of-the-jenkins-orphanage-band.pdf
    • http://www.gorillawalker.com/shepherding-the-small-church-a-leadership-guide-for-the-majority.pdf
    • http://www.gorillawalker.com/ecuador-guide-map.pdf
    • http://www.gorillawalker.com/oil-roses-ht214.pdf
    • http://www.gorillawalker.com/all-i-ever-wanted-relationships-marriage-family.pdf
    • http://www.gorillawalker.com/not-exactly-in-praise-of-vagueness.pdf
    • http://www.gorillawalker.com/lipid-chemistry.pdf
    • http://www.gorillawalker.com/enduring-issues-in-special-education-personal-perspectives.pdf
    • http://www.gorillawalker.com/the-theory-of-evolution-and-dynamical-systems-mathematical-aspects-of
    • 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.