Malicious PDF — malware analysis report

Static analysis result for SHA-256 48ca68f9ce4d242b…

MALICIOUS

PDF

42.2 KB Created: 2018-11-14 08:20:53 +03:00 Authoring application: Adobe Acrobat 8.1 Combine Files (via Acrobat Distiller 8.1.0 (Windows))
MD5: 4ff8df186a90205d1b21bd58979833e3 SHA-1: 172548b793b15e99f103668c3184ebc44b42a872 SHA-256: 48ca68f9ce4d242bde22022c4711f1c37d0db165597c8904e183febb6a25f73f
90 Risk Score

Malware Insights

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

The PDF was flagged by a machine learning classifier and contains a large number of embedded external links, characteristic of a link farm or SEO poisoning attack. The document body is heavily obfuscated and does not provide clear textual content, but the presence of numerous links to PDFs on the same domain suggests a coordinated effort to distribute content or lure users to a specific site. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8872

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/time-to-go-three-plays-on-death-and-dying-with.pdf
    • http://www.gorillawalker.com/heart-canals.pdf
    • http://www.gorillawalker.com/federal-civil-rules-supplement-2014-2015-selected-statutes.pdf
    • http://www.gorillawalker.com/element-encyclopedia-of-secret-signs-and-symbols-the-ultimate-a.pdf
    • http://www.gorillawalker.com/202-science-investigations-exciting-adventures-in-earth-life-and-physical.pdf
    • http://www.gorillawalker.com/the-problem-of-evil-ibn-sina-s-theodicy.pdf
    • http://www.gorillawalker.com/the-philosophy-of-punk-more-than-noise.pdf
    • http://www.gorillawalker.com/tax-aspects-of-the-purchase-and-sale-of-a-private.pdf
    • http://www.gorillawalker.com/rockstar-s-angel-decoy-3-decoy-3-decoy-series.pdf
    • http://www.gorillawalker.com/report-on-operation-deep-freeze-3-by-british-observer.pdf
    • http://www.gorillawalker.com/portugal-map-travel-reference-map.pdf
    • http://www.gorillawalker.com/the-ascendant.pdf
    • http://www.gorillawalker.com/multi-agent-for-mass-user-support-international-workshop-mamus-2003.pdf
    • http://www.gorillawalker.com/10-000-steps-walking-for-weight-loss-walking-for-health.pdf
    • http://www.gorillawalker.com/the-life-and-times-of-reverend-n-c-denson.pdf
    • http://www.gorillawalker.com/la-europa-ex.pdf
    • http://www.gorillawalker.com/cupcakes-ideas-creativas-que-funcionan-spanish-edition.pdf
    • http://www.gorillawalker.com/dallas-cowboys-nfl-s-greatest-teams.pdf
    • http://www.gorillawalker.com/principles-of-planning-law.pdf
    • http://www.gorillawalker.com/the-practical-preppers-complete-guide-to-disaster-preparedness.pdf
    • http://www.gorillawalker.com/the-bethesda-handbook-of-clinical-hematology-kindle-edition.pdf
    • http://www.gorillawalker.com/introduction-to-the-korean-alphabet-hangeul-korean-made-easy-starter.pdf
    • http://www.gorillawalker.com/australia-japan-and-southeast-asia-early-post-war-initiatives-in.pdf
    • http://www.gorillawalker.com/last-laughs-studies-in-gender-and-culture.pdf
    • http://www.gorillawalker.com/america-s-first-warriors-native-americans-and-iraq.pdf
    • http://www.gorillawalker.com/vlsi-interview-questions-with-answers-kindle-edition.pdf
    • http://www.gorillawalker.com/tracker-a-foreigner-novel.pdf
    • http://www.gorillawalker.com/ford-in-touring-car-racing-top-of-the-class-for.pdf
    • http://www.gorillawalker.com/behind-the-design-designers-on-designing-design-concepts.pdf
    • http://www.gorillawalker.com/korea-it-wasn-t-all-chinese-and-frostbite.pdf
    • http://www.gorillawalker.com/band-plus-book-1-french-horn-bm-209.pdf
    • http://www.gorillawalker.com/the-spies-of-warsaw-a-novel.pdf
    • http://www.gorillawalker.com/the-love-and-relationship-personality-test-practical-handwriting-analysis.pdf
    • http://www.gorillawalker.com/daniel-the-prophet.pdf
    • http://www.gorillawalker.com/the-tudors-a-very-short-introduction-very-short-introductions.pdf
    • http://www.gorillawalker.com/diseno-de-sistemas-digitales-con-vhdl-spanish-edition.pdf
    • http://www.gorillawalker.com/aqu-se-baila-el-tango-una-etnograf-a-de-las.pdf
    • http://www.gorillawalker.com/new-recruits-the-shadow-patriots-volume-2.pdf
    • http://www.gorillawalker.com/state-names-flags-seals-songs-birds-flowers-and-other-symbols.pdf
    • http://www.gorillawalker.com/mexican-chicano-music.pdf
    • http://www.gorillawalker.com/t
    • 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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