Malicious PDF — malware analysis report

Static analysis result for SHA-256 3532ba40e71473fc…

MALICIOUS

PDF

41.3 KB Created: 2018-12-02 10:55:31 +03:00 Authoring application: ScanSnap Manager (via Acrobat Distiller 10.1.7 (Windows))
MD5: eac40faa424007b08b6310290a89b2dd SHA-1: ed334d01dfdc785b6124fdc103eb1397f2b27edc SHA-256: 3532ba40e71473fca2974c19379ac414f307381dc443f54fb3382f20b20dc66f
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample, and the document body was heavily obfuscated, limiting further analysis of the specific lure.

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-enchanted-lake-of-the-fairy-morgana-from-the-orlando.pdf
    • http://www.gorillawalker.com/the-congo-wars-conflict-myth-and-reality.pdf
    • http://www.gorillawalker.com/highest-apple-paperback.pdf
    • http://www.gorillawalker.com/phase-transformation-of-kaolinite-clay.pdf
    • http://www.gorillawalker.com/condemned-to-death-a-burren-mystery-set-in-sixteenth-century.pdf
    • http://www.gorillawalker.com/spiritual-guides-of-the-third-century-a-semiotic-study-of.pdf
    • http://www.gorillawalker.com/pastas-ceramicas-en-lupa-digital-componentes-textura-y-tecnologia-spanish.pdf
    • http://www.gorillawalker.com/huranshisukokaiyakuseishogenbunkouteiniyorukougoyakusouseikirebiki-japanese-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/abc-of-eyes.pdf
    • http://www.gorillawalker.com/math-mini-mysteries.pdf
    • http://www.gorillawalker.com/planes-de-boda-spanish-edition.pdf
    • http://www.gorillawalker.com/the-wisdom-of-solomon-a-new-translation-with-introduction-and.pdf
    • http://www.gorillawalker.com/cyfansoddiadau-a-beirniadaethau-bro-ogwr-1998-welsh-edition.pdf
    • http://www.gorillawalker.com/nothing-without-god-n-w-g-the-12-volume-1.pdf
    • http://www.gorillawalker.com/dr-susan-s-incredible-cakes-gluten-free-dairy-free-and.pdf
    • http://www.gorillawalker.com/korean-folk-fairy-tales.pdf
    • http://www.gorillawalker.com/educating-for-values-driven-leadership-paperback.pdf
    • http://www.gorillawalker.com/icd-10-cm-2016-express-reference-mapping-card-emergency-medicine.pdf
    • http://www.gorillawalker.com/farrell-s-irish-papers.pdf
    • http://www.gorillawalker.com/public-administration-and-public-affairs-11th-edition.pdf
    • http://www.gorillawalker.com/one-shark-no-swim-the-niuhi-shark-saga.pdf
    • http://www.gorillawalker.com/rommel-leadership-lessons-from-the-desert-fox-world-generals-series.pdf
    • http://www.gorillawalker.com/the-dreadful-doings-of-jelly-belly.pdf
    • http://www.gorillawalker.com/gu-a-holman-de-interpretaci-n-b-blica-spanish-edition.pdf
    • http://www.gorillawalker.com/notebooks-1960-1977.pdf
    • http://www.gorillawalker.com/little-big-horn-battlefield-montana-territory-june-1876-american-battlefields.pdf
    • http://www.gorillawalker.com/loving-one-another.pdf
    • http://www.gorillawalker.com/bioinformatics-for-dna-sequence-analysis-methods-in-molecular-biology.pdf
    • http://www.gorillawalker.com/a-day-at-the-feminization-factory-2-transgender-transformation-tales.pdf
    • http://www.gorillawalker.com/bis-zum-ende-der-nacht-even-sinners-have-souls-german.pdf
    • http://www.gorillawalker.com/the-knowledge-of-the-holy.pdf
    • http://www.gorillawalker.com/withering-hope-kindle-edition.pdf
    • http://www.gorillawalker.com/gideon-s-war-a-novel.pdf
    • http://www.gorillawalker.com/repression-resistance-and-women-in-afghanistan.pdf
    • http://www.gorillawalker.com/the-triathlete-s-guide-to-run-training-ultrafit-multisport-training.pdf
    • http://www.gorillawalker.com/the-sibling-society.pdf
    • http://www.gorillawalker.com/carissimi.pdf
    • http://www.gorillawalker.com/2011-prince-edward-island-calendar.pdf
    • http://www.gorillawalker.com/the-journeying-boy-scenes-from-a-welsh-childhood-traveler.pdf
    • http://www.gorillawalker.com/cry-little-sister-episode-one-extramarital-affairs-book-1.pdf
    • http://www.gorillawalker.com/pastas-ceramicas-en-lupa-dig
    • 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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