Malicious PDF — malware analysis report

Static analysis result for SHA-256 15a1d1bd48820557…

MALICIOUS

PDF

33.0 KB Created: 2019-12-14 04:33:51 +03:00 Authoring application: - (via GNU Ghostscript 6.53)
MD5: 72c45f9002822d7ad2af0aa7c29bb1a7 SHA-1: 9cb309f759033c5723d8f5e25bcd4232acff37ed SHA-256: 15a1d1bd488205571af9a8389a6f3633aa455c318df3581656e9a0a329ea1ed6
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute further malicious content. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of embedded URLs and the heuristic firings suggest a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8313

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/finite-mathematics-with-applications-instructor-s-edition.pdf
    • http://www.gorillawalker.com/american-anthem-student-one-stop-cd-rom-survey-2009.pdf
    • http://www.gorillawalker.com/1-227-quite-interesting-facts-to-blow-your-socks-off.pdf
    • http://www.gorillawalker.com/manufacturing-process-and-equipment.pdf
    • http://www.gorillawalker.com/the-boy-who-grew-too-much-hair.pdf
    • http://www.gorillawalker.com/chalkboards-and-clipboards-my-thirty-five-years-at-the-montgomery.pdf
    • http://www.gorillawalker.com/precalculus-sixth-edition.pdf
    • http://www.gorillawalker.com/passage-to-space-the-shuttle-transportation-system.pdf
    • http://www.gorillawalker.com/hack-your-bible-sharpen-your-sword.pdf
    • http://www.gorillawalker.com/effective-public-relations-3rd-edition.pdf
    • http://www.gorillawalker.com/attracting-butterflies-hummingbirds-to-your-backyard-watch-your-garden-come.pdf
    • http://www.gorillawalker.com/bears-calendar-multilingual-edition.pdf
    • http://www.gorillawalker.com/cruising-the-virgin-islands.pdf
    • http://www.gorillawalker.com/twelve-diseases-that-changed-our-world.pdf
    • http://www.gorillawalker.com/the-atlas-of-middle-earth-revised-edition.pdf
    • http://www.gorillawalker.com/grrm-a-rretrospective-trade-hardcover-hardcover.pdf
    • http://www.gorillawalker.com/the-ward-of-king-canute-a-romance-of-the-danish.pdf
    • http://www.gorillawalker.com/cen-exam-flashcard-study-system-cen-test-practice-questions-review.pdf
    • http://www.gorillawalker.com/be-not-afraid-overcoming-the-fear-of-death.pdf
    • http://www.gorillawalker.com/the-dolphin-within-awakening-human-potential.pdf
    • http://www.gorillawalker.com/o-destino-de-um-pr-ncipe-volume-4-portuguese-edition.pdf
    • http://www.gorillawalker.com/o-profeta-de-bruderdorf-portuguese-edition.pdf
    • http://www.gorillawalker.com/geometry-and-topology-in-hamiltonian-dynamics-and-statistical-mechanics-interdisciplinary.pdf
    • http://www.gorillawalker.com/eritrea-even-the-stones-are-burning.pdf
    • http://www.gorillawalker.com/a-15-minute-summary-analysis-of-john-grisham-s-gray.pdf
    • http://www.gorillawalker.com/the-attitude-of-the-greek-tragedians-toward-art.pdf
    • http://www.gorillawalker.com/anstoss-gcse-teacher-s-resource-file.pdf
    • http://www.gorillawalker.com/sonata-in-d-major-transcribed-for-viola-piano-sheet-music.pdf
    • http://www.gorillawalker.com/deucalion-and-other-studies-in-rocks-and-stones.pdf
    • http://www.gorillawalker.com/little-letters-chicken-socks.pdf
    • http://www.gorillawalker.com/marcel-dzama-behind-every-curtain.pdf
    • http://www.gorillawalker.com/intermediate-algebra-3rd-edition-testgen-7-2-test-generator-cd.pdf
    • http://www.gorillawalker.com/marijuana-reconsidered.pdf
    • http://www.gorillawalker.com/early-christian-worship-study-in-bible-theology.pdf
    • http://www.gorillawalker.com/grace-the-power-to-reign.pdf
    • http://www.gorillawalker.com/dear-dumb-diary-9-that-s-what-friends-aren-t.pdf
    • http://www.gorillawalker.com/an-order-of-amelie-hold-the-fries.pdf
    • http://www.gorillawalker.com/the-unlikely-disciple-a-sinner-s-semester-at-america-s.pdf
    • http://www.gorillawalker.com/settlers-soldiers-and-scalps-frontier-pennsylvania-volume-6.pdf
    • http://www.gorillawalker.com/beyond-the-chair-how-to-get-the-most-out-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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