Malicious PDF — malware analysis report

Static analysis result for SHA-256 061625930c4ffe53…

MALICIOUS

PDF

43.6 KB Created: 2019-03-18 09:00:50 +03:00 Authoring application: FrameMaker 7.0 (via Acrobat Distiller 5.0.5 (Windows); modified using iText® 5.5.4 ©2000-2014 iText Group NV (AGPL-version))
MD5: 3073fd0443cc3682eb42674b0a5efd51 SHA-1: 7a4b2653b6e58f37d4fab23a90042e1218d9feea SHA-256: 061625930c4ffe53806e4f72380af418bc20d2aaa520851a6bdb3d80023a280f
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, identified as a link farm. While no scripts were explicitly extracted, the ML classifier and the heuristic firings strongly suggest malicious intent, likely related to SEO manipulation or distributing further malicious content via the linked PDFs. The document body was heavily obfuscated and truncated, preventing a more detailed analysis of its specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9171

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/lexi-comp-s-geriatric-dosage-handbook-including-clinical-recommendations-and.pdf
    • http://www.gorillawalker.com/prominent-pleasure.pdf
    • http://www.gorillawalker.com/50-walks-in-the-peak-district-50-walks-of-2.pdf
    • http://www.gorillawalker.com/the-holy-spirit-a-layman-s-perspective.pdf
    • http://www.gorillawalker.com/iec-60384-14-3-ed-1-0-en-2004-fixed.pdf
    • http://www.gorillawalker.com/the-history-of-professional-wrestling-vol-1-wwf-1963-1989.pdf
    • http://www.gorillawalker.com/the-pilot-factor-a-fresh-look-into-crew-resource-management.pdf
    • http://www.gorillawalker.com/from-frontier-town-to-metropolis-a-history-of-villavicencio-colombia.pdf
    • http://www.gorillawalker.com/sight-unseen.pdf
    • http://www.gorillawalker.com/the-office-2014-calendar.pdf
    • http://www.gorillawalker.com/a-manual-for-direct-action-strategy-and-tactics-for-civil.pdf
    • http://www.gorillawalker.com/the-summertime-girls.pdf
    • http://www.gorillawalker.com/outdoor-lighting-nudes.pdf
    • http://www.gorillawalker.com/innovation-policy-in-a-global-economy.pdf
    • http://www.gorillawalker.com/control-autom-tico-de-procesos-industriales-spanish-edition.pdf
    • http://www.gorillawalker.com/aesthetics-across-the-color-line-why-nietzsche-sometimes-can-t.pdf
    • http://www.gorillawalker.com/stalin-s-ghost-an-arkady-renko-novel-arkady-renko-series.pdf
    • http://www.gorillawalker.com/running-wild-havoc-motorcycle-club-volume-1-paperback.pdf
    • http://www.gorillawalker.com/we-are-called-to-rise-a-novel.pdf
    • http://www.gorillawalker.com/combinatorial-set-theory-partition-relations-for-cardinals-paperback-1984-author.pdf
    • http://www.gorillawalker.com/powershopping-und-wettbewerbsrecht-german-edition.pdf
    • http://www.gorillawalker.com/how-to-write-and-sell-children-s-picture-books.pdf
    • http://www.gorillawalker.com/r-e-m-s-murmur-33-1-3.pdf
    • http://www.gorillawalker.com/flickering-boy.pdf
    • http://www.gorillawalker.com/great-alaska-earthquake-of-1964-human-ecology-national-academy-of.pdf
    • http://www.gorillawalker.com/experiencing-god-s-presence-jesus-calling-bible-studies.pdf
    • http://www.gorillawalker.com/human-senescence-evolutionary-and-biocultural-perspectives-cambridge-studies-in-biological.pdf
    • http://www.gorillawalker.com/the-maine-lobster-festival-sea-princess-saga-becoming-the-next.pdf
    • http://www.gorillawalker.com/legend-legacy-the-story-of-boeing-and-its-people.pdf
    • http://www.gorillawalker.com/rocky-mountain-trees-a-handbook-of-the-native-species-with.pdf
    • http://www.gorillawalker.com/legal-issues-in-integrative-medicine.pdf
    • http://www.gorillawalker.com/planning-and-citizenship.pdf
    • http://www.gorillawalker.com/kinetic-architecture-designs-for-active-envelopes.pdf
    • http://www.gorillawalker.com/the-complete-book-of-greek-cooking-the-recipe-club-of.pdf
    • http://www.gorillawalker.com/arbitration-act-1996-trilogy-of-mock-court-of-appeal-judgments.pdf
    • http://www.gorillawalker.com/the-best-ever-book-of-chemist-jokes-lots-and-lots.pdf
    • http://www.gorillawalker.com/westlake-poems-by-wayne-kaumualii-westlake-1947-1984-talanoa-contemporary.pdf
    • http://www.gorillawalker.com/ruby-redfort-take-your-last-breath.pdf
    • http://www.gorillawalker.com/enantiomer-separation-fundamentals-and-practical-methods-subcellular-biochemistry.pdf
    • http://www.gorillawalker.com/a-comprehensive-look-at-fraud-identification-and-prevention.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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