Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b1b427c721ca0e6…

MALICIOUS

PDF

33.4 KB Created: 2019-05-24 00:42:45 +03:00 Authoring application: - (via Acrobat Web Capture 8.0)
MD5: c4c1a457884f943b31068df5a3cbf1c4 SHA-1: 89b7f9cce431ca1a9870a1fd0642074dca267578 SHA-256: 2b1b427c721ca0e6856f137e2be0b466982f02286067551eb952d87fece56a61
90 Risk Score

Malware Insights

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

The PDF was flagged by a critical heuristic for containing a large number of external links, suggesting a link farm or a distribution point for malicious content. The ML classifier also indicated a high probability of maliciousness. While no scripts were extracted, the sheer volume of links to seemingly unrelated PDF documents on the same domain points towards an attempt to manipulate search engine results or distribute further malicious payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7964

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-5-minute-veterinary-consult-canine-and-feline-pda-5.pdf
    • http://www.gorillawalker.com/good-white-people-the-problem-with-middle-class-white-anti.pdf
    • http://www.gorillawalker.com/the-handbook-of-transformative-learning-theory-research-and-practice.pdf
    • http://www.gorillawalker.com/invisible-chess-moves-discover-your-blind-spots-and-stop-overlooking.pdf
    • http://www.gorillawalker.com/cats-and-their-slaves-an-anthology-of-worship.pdf
    • http://www.gorillawalker.com/united-states-army-u-s-armed-forces.pdf
    • http://www.gorillawalker.com/fm-7-85-ranger-unit-operations-and-soldier-s-handbook.pdf
    • http://www.gorillawalker.com/budapesti-bringas-terkep-radfahrerkarte-map-for-bikers-hungarian-edition.pdf
    • http://www.gorillawalker.com/autumn-of-the-spring-chicken-wit-and-wisdom-for-women.pdf
    • http://www.gorillawalker.com/year-4-handwriting.pdf
    • http://www.gorillawalker.com/timothy-turtle.pdf
    • http://www.gorillawalker.com/introduction-to-vlsi-systems.pdf
    • http://www.gorillawalker.com/dolphins-of-the-world.pdf
    • http://www.gorillawalker.com/iec-60068-2-48-ed-1-0-b-1982-environmental.pdf
    • http://www.gorillawalker.com/guide-to-protein-purification-volume-182-volume-182-guide-to.pdf
    • http://www.gorillawalker.com/warhammer-fantasy-battle-rulebook-2010-2010.pdf
    • http://www.gorillawalker.com/ghosts-of-flight-401-unsolved-mysteries-raintree-hardcover.pdf
    • http://www.gorillawalker.com/the-future-of-the-global-church-history-trends-and-possiblities.pdf
    • http://www.gorillawalker.com/charles-nelson-s-school-of-self-defense-the-red-and.pdf
    • http://www.gorillawalker.com/gender-actualized-cases-in-communicatively-constructing-realities.pdf
    • http://www.gorillawalker.com/doing-qualitative-research-a-comprehensive-guide.pdf
    • http://www.gorillawalker.com/renters-insurance-how-to-insure-kindle-edition.pdf
    • http://www.gorillawalker.com/2513.pdf
    • http://www.gorillawalker.com/sam-colby-the-return-book-2.pdf
    • http://www.gorillawalker.com/jerk-california.pdf
    • http://www.gorillawalker.com/sepharad-the-music-of-the-jews-from-spain-dvd-jewish.pdf
    • http://www.gorillawalker.com/mini-motocross-and-pit-bike-performance-handbook-motorbooks-workshop.pdf
    • http://www.gorillawalker.com/spss-predictive-models.pdf
    • http://www.gorillawalker.com/for-whom-the-bell-tolls-hudson-river-edition-series.pdf
    • http://www.gorillawalker.com/pourquoi-lire-les-classiques.pdf
    • http://www.gorillawalker.com/whiter-than-snow-meditations-on-sin-and-mercy-kindle-edition.pdf
    • http://www.gorillawalker.com/mustangs-over-korea-the-north-american-f-51-at-war.pdf
    • http://www.gorillawalker.com/malice-2-havoc.pdf
    • http://www.gorillawalker.com/frigid.pdf
    • http://www.gorillawalker.com/electronic-projects-for-musicians.pdf
    • http://www.gorillawalker.com/introduction-to-estimating-for-construction-kindle-edition.pdf
    • http://www.gorillawalker.com/the-record-of-a-regiment-of-the-line-being-a.pdf
    • http://www.gorillawalker.com/making-it-in-high-heels-3-innovators-and-trailblazers-unabridged.pdf
    • http://www.gorillawalker.com/crock-pot-recipes-crock-pot-recipes-for-supreme-healthy-eating.pdf
    • http://www.gorillawalker.com/the-black-man-s-hucow-fertile-interracial-milking-older-man.pdf
    • http://www.gorillawalker.com/budapesti-bringas-terkep-radfahrerkarte-map-for-bikers
    • 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/

Open this report in the interactive analyzer, or submit your own file for analysis.