Malicious PDF — malware analysis report

Static analysis result for SHA-256 4b0d6b43a7c48992…

MALICIOUS

PDF

45.2 KB Created: 2018-12-05 08:16:10 +03:00 Authoring application: Acrobat PDFMaker 10.0 for Word (via Adobe PDF Library 10.0)
MD5: a03fe09fffbfba57effc3bfd94359289 SHA-1: a3ada7383f23b8a7c2e6f6afad1b718f52e2ce41 SHA-256: 4b0d6b43a7c489920094bb710f18d86ae53a908890a085fdb9845b89a547d6aa
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged by a machine learning classifier and contains a large number of embedded URLs pointing to external PDF documents. This behavior is consistent with SEO poisoning or link farm tactics, aiming to lure users to potentially malicious sites or manipulate search engine results. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the specific lure.

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/developing-chinese-intermediate-comprehensive-course-i-2nd-edition-presenting-mp3.pdf
    • http://www.gorillawalker.com/hybrid-graph-theory-and-network-analysis-cambridge-tracts-in-theoretical.pdf
    • http://www.gorillawalker.com/argumentative-and-aggressive-communication-theory-research-and-application-br-second.pdf
    • http://www.gorillawalker.com/lovey.pdf
    • http://www.gorillawalker.com/ftp-code-2010-international-code-for-application-of-fire-test.pdf
    • http://www.gorillawalker.com/the-complete-terrorism-survival-guide.pdf
    • http://www.gorillawalker.com/the-respiratory-tract-in-pediatric-critical-illness-and-injury.pdf
    • http://www.gorillawalker.com/guia-de-la-clinica-mayo-sobre-dolor-cronico-mayo-clinic.pdf
    • http://www.gorillawalker.com/mandalas-hacia-la-paz-interior-toward-inner-peace-spanish-edition.pdf
    • http://www.gorillawalker.com/lou-henry-hoover-the-duty-to-serve-notable-americans.pdf
    • http://www.gorillawalker.com/learning-to-study-study-skills-study-strategies-student-book-g.pdf
    • http://www.gorillawalker.com/geomorphology-and-global-tectonics.pdf
    • http://www.gorillawalker.com/keri-part-4-keri-karin-part-two-child-abuse-true.pdf
    • http://www.gorillawalker.com/champagne-the-spirit-of-celebration.pdf
    • http://www.gorillawalker.com/sentimentalism-an-entry-from-charles-scribner-s-sons-american-history.pdf
    • http://www.gorillawalker.com/designing-brand-identity-an-essential-guide-for-the-whole-branding.pdf
    • http://www.gorillawalker.com/intimacy-the-sensual-essence-of-flowers.pdf
    • http://www.gorillawalker.com/so-many-brave-men-a-history-of-the-battle-at.pdf
    • http://www.gorillawalker.com/fearfully-and-wonderfully-made-a-christian-health-and-puberty-guide.pdf
    • http://www.gorillawalker.com/guinea-pig-games-2014-calendar-tough-guys-only.pdf
    • http://www.gorillawalker.com/the-evolution-of-jazz-drumming.pdf
    • http://www.gorillawalker.com/el-murmullo-de-las-abejas-spanish-edition.pdf
    • http://www.gorillawalker.com/anterior-segment-optical-coherence-tomography.pdf
    • http://www.gorillawalker.com/evermore-book-4-the-arotas-series-volume-4.pdf
    • http://www.gorillawalker.com/the-mango-botany-production-and-uses-cabi.pdf
    • http://www.gorillawalker.com/so-good-for-little-bunnies.pdf
    • http://www.gorillawalker.com/the-negotiating-game-how-to-get-what-you-want-the.pdf
    • http://www.gorillawalker.com/bad-breath-remedies-what-you-ought-to-know-about-bad.pdf
    • http://www.gorillawalker.com/one-hundred-problems-in-elementary-mathematics-dover-books-on-mathematics.pdf
    • http://www.gorillawalker.com/splash-hit-pac-bell-park-and-the-san-francisco-giants.pdf
    • http://www.gorillawalker.com/fetal-development-stages-of-growth-maternal-influences-and-potential-complications.pdf
    • http://www.gorillawalker.com/the-actor-s-book-of-contemporary-stage-monologues-more-than.pdf
    • http://www.gorillawalker.com/schools-of-the-past-present-and-future-imagining-the-future.pdf
    • http://www.gorillawalker.com/john-constantine-hellblazer-dangerous-habits.pdf
    • http://www.gorillawalker.com/cancer-culture-and-communication.pdf
    • http://www.gorillawalker.com/operation-and-modelling-of-the-metal-oxide-semiconductor-transistor.pdf
    • http://www.gorillawalker.com/from-manassas-to-appomattox-memoirs-of-the-civil-war-in.pdf
    • http://www.gorillawalker.com/milady-s-aesthetician-series-advanced-face-and-body-treatments-for.pdf
    • http://www.gorillawalker.com/small-animal-arthroscopy-1e.pdf
    • http://www.gorillawalker.com/battletech-major-periphery-states.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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