Malicious PDF — malware analysis report

Static analysis result for SHA-256 52f43f30ddcceef5…

MALICIOUS

PDF

43.6 KB Created: 2019-02-13 22:34:33 +03:00 Authoring application: UnknownApplication (via XEP 4.4 build 20050610)
MD5: 80bf29f84a757bc707b21eeb2bd00200 SHA-1: 02c70373b3e3e668ce33f4fed2c0a74b06db1a81 SHA-256: 52f43f30ddcceef5931565282fd5366cf9edba602d479da4246eb1e5f4191b49
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged this PDF as malicious. While no scripts were extracted, the sheer volume of outbound links suggests an attempt to manipulate search engine results or redirect users to potentially malicious content hosted on the linked domains.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8859

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/owning-russia-the-struggle-over-factories-farms-and-power-hardcover.pdf
    • http://www.gorillawalker.com/god-was-in-this-place-i-i-did-not-know.pdf
    • http://www.gorillawalker.com/occidentalism-a-theory-of-counter-discourse-in-post-mao-china.pdf
    • http://www.gorillawalker.com/mems-introduction-and-fundamentals-mechanical-and-aerospace-engineering-series.pdf
    • http://www.gorillawalker.com/collins-scrabble-dictionary.pdf
    • http://www.gorillawalker.com/bounce-roll-fly-the-science-of-balls-volume-6-data.pdf
    • http://www.gorillawalker.com/operation-love-match-svh-103-sweet-valley-high.pdf
    • http://www.gorillawalker.com/wordly-wise-book-8.pdf
    • http://www.gorillawalker.com/hellig-olaf-historisk-fort-lling-norwegian-edition.pdf
    • http://www.gorillawalker.com/ipt-s-guide-to-blueprint-interpretation.pdf
    • http://www.gorillawalker.com/the-practice-slave-stories-of-domination-and-submission.pdf
    • http://www.gorillawalker.com/china-world-cultures-through-time-primary-source-readers.pdf
    • http://www.gorillawalker.com/sketchup-for-interior-design-3d-visualizing-designing-and-space-planning.pdf
    • http://www.gorillawalker.com/softball-skills-drills-2nd-edition.pdf
    • http://www.gorillawalker.com/out-of-left-field-marlee-s-story.pdf
    • http://www.gorillawalker.com/spanish-polychrome-sculpture-1500-1800-in-united-states-collections.pdf
    • http://www.gorillawalker.com/making-magic-how-orlando-won-an-nba-team.pdf
    • http://www.gorillawalker.com/flip-outside-the-box-creative-women-s-gymnastics-elements.pdf
    • http://www.gorillawalker.com/philip-s-atlas-of-universe-pb-tsp.pdf
    • http://www.gorillawalker.com/living-with-lupus-women-and-chronic-illness-in-ecuador-louann.pdf
    • http://www.gorillawalker.com/your-best-child-ever-is-this-game-worth-winning-how.pdf
    • http://www.gorillawalker.com/walk-softly-rachel.pdf
    • http://www.gorillawalker.com/engineering-design-graphics-with-solidworks-2011-1st-first-edition-by.pdf
    • http://www.gorillawalker.com/justification-and-critique-towards-a-critical-theory-of-politics.pdf
    • http://www.gorillawalker.com/plane-sense-general-aviation-information.pdf
    • http://www.gorillawalker.com/psychological-testing-and-assessment-an-introduction-to-tests-measurement-8th.pdf
    • http://www.gorillawalker.com/intelligent-memory-systems-second-international-workshop-ims-2000-cambridge-ma.pdf
    • http://www.gorillawalker.com/here-s-ireland.pdf
    • http://www.gorillawalker.com/critical-companion-to-tim-o-brien.pdf
    • http://www.gorillawalker.com/women-scientists-in-america-forging-a-new-world-since-1972.pdf
    • http://www.gorillawalker.com/albuquerque-diy-city-guide-and-travel-journal-city-notebook-for.pdf
    • http://www.gorillawalker.com/machine-transcription-for-document-processing.pdf
    • http://www.gorillawalker.com/electricity-industry-and-class-in-south-africa-st-antony-s.pdf
    • http://www.gorillawalker.com/marketing-w-student-cd-rom-and-powerweb.pdf
    • http://www.gorillawalker.com/103-chistes-comiqu.pdf
    • http://www.gorillawalker.com/the-love-letters-of-dylan-thomas.pdf
    • http://www.gorillawalker.com/mj-the-genius-of-michael-jackson.pdf
    • http://www.gorillawalker.com/clara-barton-face-danger-but-never-fear-it-americans-the.pdf
    • http://www.gorillawalker.com/infinite-abelian-groups-volume-2.pdf
    • http://www.gorillawalker.com/oxford-reading-tree-level-1-floppy-s-phonics-pack-of.pdf
    • http://www.gorillawalker.com/mems-introduction-and-fundamentals-mechanical-and-aerospace-engineering-series
    • 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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