Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab47858fc96e72e4…

MALICIOUS

PDF

45.2 KB Created: 2019-04-09 08:19:49 +03:00 Authoring application: ScanSnap Manager (via Acrobat Distiller 10.1.7 (Windows))
MD5: 41d207e13f4d644a517301377ea78841 SHA-1: 66c0888bb35444c61f9a3c5a2ed536924840d805 SHA-256: ab47858fc96e72e42a80f90ac3d14973b07470a3abcf36de3e93ac7bbae3271f
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 to external PDF files, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged this PDF as malicious. The document body is heavily obfuscated and unreadable, but the presence of numerous links suggests an attempt to direct users to potentially malicious content or for SEO manipulation. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8812

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/moonhead-and-the-music-machine.pdf
    • http://www.gorillawalker.com/when-good-earls-go-bad-a-victorian-valentine-s-day.pdf
    • http://www.gorillawalker.com/monster-high-frights-camera-action-the-junior-novel.pdf
    • http://www.gorillawalker.com/the-vector-brushes-sourcebook-300-unique-brushes-for-digital-illustration.pdf
    • http://www.gorillawalker.com/ff-vol-3.pdf
    • http://www.gorillawalker.com/matriarchs-volume-2-more-great-mares-of-modern-times.pdf
    • http://www.gorillawalker.com/performing-salah-using-the-prophetic-example-color-based-on-authentic.pdf
    • http://www.gorillawalker.com/espana-oculta-public-celebrations-in-spain-1974-1989-spanish-edition.pdf
    • http://www.gorillawalker.com/image-text-exegesis-iconographic-interpretation-and-the-hebrew-bible-the.pdf
    • http://www.gorillawalker.com/tangling-with-tyrants-managing-the-balance-of-power-at-work.pdf
    • http://www.gorillawalker.com/finite-mathematics-for-business-economics-life-sciences-and-social-sciences.pdf
    • http://www.gorillawalker.com/the-role-of-modern-dance-in-selected-womens-and-coeducational.pdf
    • http://www.gorillawalker.com/an-insider-s-view-of-sexual-science-since-kinsey.pdf
    • http://www.gorillawalker.com/construction-surveying-and-layout-a-step-by-step-field-engineering.pdf
    • http://www.gorillawalker.com/illustrated-vincent-motorcycle-buyer-s-guide-illustrated-buyer-s-guide.pdf
    • http://www.gorillawalker.com/tuttle-mini-chinese-dictionary-chinese-english-english-chinese-tuttle-mini.pdf
    • http://www.gorillawalker.com/crimsoning-the-eagle-s-claw-the-viking-poems-of-rognvaldr.pdf
    • http://www.gorillawalker.com/the-story-of-chess-records.pdf
    • http://www.gorillawalker.com/overcoming-challenges-in-software-engineering-education-delivering-non-technical-knowledge.pdf
    • http://www.gorillawalker.com/the-mingled-destinies-of-crocodiles-and-men.pdf
    • http://www.gorillawalker.com/sword-spirit.pdf
    • http://www.gorillawalker.com/pre-raphaelitism-poetry-and-painting-writers-and-their-work.pdf
    • http://www.gorillawalker.com/robert-benchley-his-life-and-good-times.pdf
    • http://www.gorillawalker.com/the-nail-what-could-you-be-in-god-s-hand.pdf
    • http://www.gorillawalker.com/el-acogimiento-familiar-de-menores-the-foster-care-of-children.pdf
    • http://www.gorillawalker.com/the-fairytale-as-art-form-and-portrait-of-man-folklore.pdf
    • http://www.gorillawalker.com/modern-ferrite-technology.pdf
    • http://www.gorillawalker.com/soft-plate-and-impact-tectonics.pdf
    • http://www.gorillawalker.com/introduction-to-montague-semantics-studies-in-linguistics-and-philosophy.pdf
    • http://www.gorillawalker.com/surrender-to-the-sensations-2-there-is-more-to-sensual.pdf
    • http://www.gorillawalker.com/the-daniel-cure-the-daniel-fast-way-to-vibrant-health.pdf
    • http://www.gorillawalker.com/music-of-garden-getaway-cd.pdf
    • http://www.gorillawalker.com/what-i-wish-i-had-known-about-becoming-a-teenager.pdf
    • http://www.gorillawalker.com/designers-guide-to-en-1998-1-and-1998-5-eurocode.pdf
    • http://www.gorillawalker.com/biomes-and-ecosystems-gareth-stevens-vital-science-earth-science.pdf
    • http://www.gorillawalker.com/naples-the-amalfi-coast-eyewitness-travel-guides.pdf
    • http://www.gorillawalker.com/guinea-pigs-make-great-pets-the-literacy-tower.pdf
    • http://www.gorillawalker.com/the-art-of-exceptional-living.pdf
    • http://www.gorillawalker.com/vibration-of-mechanical-and-structural-systems-with-microcomputer-applications.pdf
    • http://www.gorillawalker.com/verilog-designer-s-library.pdf
    • http://www.gorillawalker.com/performing-salah-using-the-prophetic-example
    • 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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