Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f91ac91d644a392…

MALICIOUS

PDF

34.9 KB Created: 2019-09-08 11:50:58 +03:00 Authoring application: Adobe Illustrator CS3 (via Adobe PDF library 8.00)
MD5: a722aaa1b0614e1277c51cc733fc569f SHA-1: ce7d469adeb4563e84b35da2188ff39699d4d9e5 SHA-256: 5f91ac91d644a392a7f169924c7ea98957da70394a513b2ba1852eb26cb7eb31
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO manipulation or to distribute secondary payloads. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the nature of the embedded links suggests a malicious intent to redirect the user to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8315

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/homme-rapaille-poesie-gallimard-french-edition.pdf
    • http://www.gorillawalker.com/radiohead-the-stories-behind-every-song-stories-behind-the-songs.pdf
    • http://www.gorillawalker.com/psychotropic-drug-directory-2013-14-the-professionals-pocket-handbook-and.pdf
    • http://www.gorillawalker.com/a-field-guide-to-the-birds-eastern-land-and-water.pdf
    • http://www.gorillawalker.com/the-lost-cause-the-standard-southern-history-of-the-war.pdf
    • http://www.gorillawalker.com/the-best-ever-book-of-mailman-jokes-lots-and-lots.pdf
    • http://www.gorillawalker.com/weapons-of-mass-distortion-the-coming-meltdown-of-the-liberal.pdf
    • http://www.gorillawalker.com/houdini-s-paper-magic-kindle-edition.pdf
    • http://www.gorillawalker.com/the-spirit-pharaohs-and-the-lost-queen-kindle-edition.pdf
    • http://www.gorillawalker.com/icu-ccu-facts-made-incredibly-quick-incredibly-easy-series.pdf
    • http://www.gorillawalker.com/mummies-ancient-egyptian-mysteries-book-1-kindle-edition.pdf
    • http://www.gorillawalker.com/advanced-lithium-ion-batteries-recent-trends-and-perspectives-new-materials.pdf
    • http://www.gorillawalker.com/jazz-fest-intermediate-piano-solos-original-piano-solos-in-various.pdf
    • http://www.gorillawalker.com/aromatherapy-quickstudy-health.pdf
    • http://www.gorillawalker.com/school-of-bowing-technic-for-the-violin-op-2-parts.pdf
    • http://www.gorillawalker.com/daddy-stop-talking-cd-and-other-things-my-kids-want.pdf
    • http://www.gorillawalker.com/brilliant-answers-to-tough-interview-questions-5th-edition-brilliant-business.pdf
    • http://www.gorillawalker.com/cultural-policy-and-arts-management-korean-edition.pdf
    • http://www.gorillawalker.com/isdn-and-broadband-isdn-hardcover.pdf
    • http://www.gorillawalker.com/questioning-collapse-human-resilience-ecological-vulnerability-and-the-aftermath-of.pdf
    • http://www.gorillawalker.com/the-travel-diary-of-robert-bargrave-levant-merchant-1647-1656.pdf
    • http://www.gorillawalker.com/lsc-explorations-volume-1-solar-system-ch-1-12.pdf
    • http://www.gorillawalker.com/la-lagartija-y-el-sol-the-lizard-and-the-sun.pdf
    • http://www.gorillawalker.com/augustus-the-life-of-rome-s-first-emperor-unabridged-audible.pdf
    • http://www.gorillawalker.com/atlas-of-medieval-europe-cultural-atlas-of.pdf
    • http://www.gorillawalker.com/love-mode-volume-7-yaoi-v-7.pdf
    • http://www.gorillawalker.com/the-life-of-jesus-christ-and-biblical-revelations-from-the.pdf
    • http://www.gorillawalker.com/flutter-my-blood-approves-book-3.pdf
    • http://www.gorillawalker.com/becs-terkep-wien-plan-vienna-map-vienne-carte-hungarian-edition.pdf
    • http://www.gorillawalker.com/pikmin-prima-official-game-guide-prima-official-game-guides.pdf
    • http://www.gorillawalker.com/tracers-in-hydrology-iahs-proceedings-reports.pdf
    • http://www.gorillawalker.com/leading-the-lean-enterprise-transformation.pdf
    • http://www.gorillawalker.com/the-math-tutor-a-novel.pdf
    • http://www.gorillawalker.com/the-cult-of-bolivar-in-latin-american-literature.pdf
    • http://www.gorillawalker.com/the-miner-s-a-z-unofficial-compendium-for-minecraft-combat.pdf
    • http://www.gorillawalker.com/250-pieces-of-haiku.pdf
    • http://www.gorillawalker.com/insects-spiders-and-other-terrestrial-arthropods-smithsonian-handbooks-smithsonian-handbooks.pdf
    • http://www.gorillawalker.com/herod-reflections-on-political-violence-kindle-edition.pdf
    • http://www.gorillawalker.com/captains-of-crush-grippers-what-they-are-and-how-to.pdf
    • http://www.gorillawalker.com/365-trout-flies-patterns-and-recipes-for-a-year-of.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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