Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c5f95a14537f02f…

MALICIOUS

PDF

39.7 KB Created: 2018-11-14 10:01:37 +03:00 Authoring application: Microsoft® Office Word 2007
MD5: 50a7ad6095071ed3f3d464dc863ba705 SHA-1: ba283c243f37c5dd3f108b965459372f5b28f184 SHA-256: 7c5f95a14537f02f7c50596d32e22a12d956f3ab6b85bda7df2b8f67c1d54a83
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged this PDF as malicious. The document body is heavily obfuscated, but the presence of numerous links to PDF files on the same domain suggests a coordinated effort to manipulate search engine results or to distribute potentially malicious content disguised as legitimate documents. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9027

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/routledge-handbook-of-sexuality-health-and-rights-routledge-handbooks-kindle.pdf
    • http://www.gorillawalker.com/disability-and-medieval-law-history-literature-society.pdf
    • http://www.gorillawalker.com/panther-vs-t-34-ukraine-1943-duel.pdf
    • http://www.gorillawalker.com/disco-for-the-departed-a-dr-siri-paiboun-mystery.pdf
    • http://www.gorillawalker.com/pop-duets-for-all-cello-bass.pdf
    • http://www.gorillawalker.com/a-jacobite-exile-being-the-adventures-of-a-young-englishman.pdf
    • http://www.gorillawalker.com/vector-analysis-with-applications-to-physics.pdf
    • http://www.gorillawalker.com/better-homes-and-gardens-creative-ideas-holiday-cooking-1986.pdf
    • http://www.gorillawalker.com/the-holy-qur-an.pdf
    • http://www.gorillawalker.com/skane.pdf
    • http://www.gorillawalker.com/a-saint-saens-organ-album.pdf
    • http://www.gorillawalker.com/the-harm-in-hate-speech.pdf
    • http://www.gorillawalker.com/critical-care-review-pearls-of-wisdom-second-edition.pdf
    • http://www.gorillawalker.com/the-secret-life-of-sparrow-delaney.pdf
    • http://www.gorillawalker.com/healthy-heart-keep-your-heart-happy-52-brilliant-ideas.pdf
    • http://www.gorillawalker.com/inquiry-into-math-science-technology-for-teaching-young-children.pdf
    • http://www.gorillawalker.com/animals-and-why-they-matter.pdf
    • http://www.gorillawalker.com/offensive-football-systems-expanded-edition-gridiron-cup-1982-trilogy-book.pdf
    • http://www.gorillawalker.com/for-the-game-playing-for-keeps-volume-2.pdf
    • http://www.gorillawalker.com/cardiology-contemporary-issues-in-small-animal-practice.pdf
    • http://www.gorillawalker.com/jewelry-making-tutorial-beaded-flower-kindle-edition.pdf
    • http://www.gorillawalker.com/versi-liberi-poesie-erotiche-vol-1-italian-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/psychology-psychology-revivals-a-study-of-mental-life.pdf
    • http://www.gorillawalker.com/golf-buddies.pdf
    • http://www.gorillawalker.com/worship-favorites-instrumental-play-along-for-horn.pdf
    • http://www.gorillawalker.com/gold-collar.pdf
    • http://www.gorillawalker.com/tell-me-about-your-day-today.pdf
    • http://www.gorillawalker.com/dream-shadow-1st-in-dream-series.pdf
    • http://www.gorillawalker.com/functional-python-programming.pdf
    • http://www.gorillawalker.com/ti-con-zero-in-italian.pdf
    • http://www.gorillawalker.com/all-about-forex-trading-all-about-series.pdf
    • http://www.gorillawalker.com/project-management-planning-and-control-sixth-edition-managing-engineering-construction.pdf
    • http://www.gorillawalker.com/credibility-in-elizabethan-and-early-stuart-military-news-political-and.pdf
    • http://www.gorillawalker.com/claimed-a-lana-murphy-story-awake-in-a-dream-book.pdf
    • http://www.gorillawalker.com/resting-trumpets-should-christians-celebrate-the-feast-days-kindle-edition.pdf
    • http://www.gorillawalker.com/virgins-tricksters.pdf
    • http://www.gorillawalker.com/the-dog-s-guide-to-surfing-hanging-ten-with-man.pdf
    • http://www.gorillawalker.com/the-seoul-survivor.pdf
    • http://www.gorillawalker.com/the-canonical-installation-of-pastors-1948-cua-studies-in-canon.pdf
    • http://www.gorillawalker.com/the-norton-anthology-of-western-music-seventh-edition-vol-1.pdf
    • http://www.gorillawalker.com/vector-analysis-w
    • 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/