Malicious PDF — malware analysis report

Static analysis result for SHA-256 675232c1c1bc5d6d…

MALICIOUS

PDF

42.1 KB Created: 2019-01-06 08:02:19 +03:00 Authoring application: Adobe InDesign CS2_J (4.0.5) (via Adobe PDF Library 7.0)
MD5: 6bdc86ba6834ea019fec7198b9e0654a SHA-1: b41177690bde81647c846dda456a79dca3a115b9 SHA-256: 675232c1c1bc5d6dd086aa265feb9340f1c6b6bdc573c0b0fd90a0baa8884ac0
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged the document as malicious. While no scripts were extracted, the sheer volume of links suggests an attempt to manipulate search engine rankings or distribute malicious content via these external references. The document body is heavily obfuscated and unreadable.

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/desarrollo-urbanistico-candelaria-valle-colombia-conurbacion-spanish-edition.pdf
    • http://www.gorillawalker.com/honba-japanese-edition.pdf
    • http://www.gorillawalker.com/mymathlab-for-trigsted-college-algebra-access-card-plus-etext-reference.pdf
    • http://www.gorillawalker.com/calcium-and-common-sense.pdf
    • http://www.gorillawalker.com/endangered-baby-animals-it-s-fun-to-learn-about-baby.pdf
    • http://www.gorillawalker.com/the-secret-of-sentinel-rock-from-many-peoples-kindle-edition.pdf
    • http://www.gorillawalker.com/interventional-ultrasound-of-the-breast.pdf
    • http://www.gorillawalker.com/busy-bear-around-the-house.pdf
    • http://www.gorillawalker.com/chaps-and-cauldrons-saddles-and-spells-book-2-kindle-edition.pdf
    • http://www.gorillawalker.com/student-cd-for-antonakos-the-intel-family-of-microprocessors-hardware.pdf
    • http://www.gorillawalker.com/the-womanifesto.pdf
    • http://www.gorillawalker.com/collins-robert-concise-french-to-english-one-way-dictionary-collins.pdf
    • http://www.gorillawalker.com/a-colour-atlas-of-clinical-gynaecology-wolfe-medical-atlases.pdf
    • http://www.gorillawalker.com/the-ultimate-guide-to-breeding-beetles-coleoptera-laboratory-culture-methods.pdf
    • http://www.gorillawalker.com/cross-purposes-on-being-christian-and-crossgendered-sullivan-press-monograph.pdf
    • http://www.gorillawalker.com/a-drop-of-chinese-blood-inspector-o-novels.pdf
    • http://www.gorillawalker.com/mother-teresa-first-biographies.pdf
    • http://www.gorillawalker.com/aircraft-woodwork-drake-s-aircraft-mechanic-series-volume-1.pdf
    • http://www.gorillawalker.com/the-little-lisper-third-edition.pdf
    • http://www.gorillawalker.com/the-hollow-kjolvannet-saga-book-1-kindle-edition.pdf
    • http://www.gorillawalker.com/crime-beat-a-decade-of-covering-cops-and-killers.pdf
    • http://www.gorillawalker.com/madden-nfl-2001-prima-s-official-strategy-guide.pdf
    • http://www.gorillawalker.com/philosophy-of-science-a-z-philosophy-a-z-eup.pdf
    • http://www.gorillawalker.com/the-family-album-dry-fork-district.pdf
    • http://www.gorillawalker.com/50-diet-tips-for-mma-and-combat-sports.pdf
    • http://www.gorillawalker.com/pancho-villa-la-construcci-n-del-mito-artes-visuales-serie.pdf
    • http://www.gorillawalker.com/aquafun-frist-steps-learning-by-playing.pdf
    • http://www.gorillawalker.com/werewolf-players-guide-2nd-ed-werewolf-the-apocalypse.pdf
    • http://www.gorillawalker.com/rad-15-percutaneous-mri-guided-and-monitored-cryosurgery-of-bone.pdf
    • http://www.gorillawalker.com/satellites-and-the-internet-challenges-and-solutions.pdf
    • http://www.gorillawalker.com/breeding-my-wife-2-the-stranger-interracial-cuckold-voyeur-erotica.pdf
    • http://www.gorillawalker.com/desper-hollow-unabridged-audible-audio-edition.pdf
    • http://www.gorillawalker.com/case-management-for-mentally-ill-patients-chronic-mental-illness.pdf
    • http://www.gorillawalker.com/mastering-mathematics-how-to-be-a-great-math-student.pdf
    • http://www.gorillawalker.com/n-sync-tearin-up-the-charts.pdf
    • http://www.gorillawalker.com/hanukkah-a-world-of-festivals.pdf
    • http://www.gorillawalker.com/stand-up-comedy-in-theory-or-abjection-in-america-new.pdf
    • http://www.gorillawalker.com/slayer-a-totally-awesome-collection-of-buffy-trivia.pdf
    • http://www.gorillawalker.com/nicaragua-between-caudillismo-and-modernity-the-sandinistas-redux-sandinista-national.pdf
    • http://www.gorillawalker.com/from-horror-to-hope-a-child-s-survival-in-the.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/

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