Malicious PDF — malware analysis report

Static analysis result for SHA-256 3640d2835a51792e…

MALICIOUS

PDF

41.0 KB Created: 2019-03-18 10:08:17 +03:00 Authoring application: Adobe InDesign CS5.5 (7.5) (via Adobe PDF Library 9.9)
MD5: 539186cb671537e6b6091f081af7b055 SHA-1: eb03232e8bd23ac63b5a37fedfc4f223532c24f3 SHA-256: 3640d2835a51792e9bbda0dc035e72525748fa8d6f79e8127129079db9c354e1
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to PDF files on the domain 'www.gorillawalker.com'. This heuristic firing indicates a link farm, a common technique for SEO manipulation or distributing malicious content. The ML classifier also flagged the PDF as malicious. No scripts were extracted, and the document body was unreadable, but the sheer volume of links suggests a malicious intent to redirect users.

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/the-republic-of-tea-letters-to-a-young-zen-entrepreneur.pdf
    • http://www.gorillawalker.com/the-eye-a-natural-history.pdf
    • http://www.gorillawalker.com/twisted-urges-taboo-erotica.pdf
    • http://www.gorillawalker.com/the-seven-seas-the-sailor-s-calendar-1997.pdf
    • http://www.gorillawalker.com/torvill-and-dean-1983-cloth-with-dustjacket.pdf
    • http://www.gorillawalker.com/star-of-the-first-design-national-undergraduate-outstanding-graphic-design.pdf
    • http://www.gorillawalker.com/el-lavado-de-dinero-money-laundering-nuevo-problema-para-el.pdf
    • http://www.gorillawalker.com/aleph-isn-t-tough-an-introduction-to-hebrew-for-adults.pdf
    • http://www.gorillawalker.com/the-supreme-court-and-the-attitudinal-model-revisited.pdf
    • http://www.gorillawalker.com/to-know-as-we-are-known-a-spirituality-of-education.pdf
    • http://www.gorillawalker.com/qu-me-est-pasando-spanish-edition.pdf
    • http://www.gorillawalker.com/five-mystical-songs-for-baritone-chorus-ad-lib-and-orchestra.pdf
    • http://www.gorillawalker.com/babar-learns-to-cook.pdf
    • http://www.gorillawalker.com/circular-v-65.pdf
    • http://www.gorillawalker.com/systems-in-timber-engineering.pdf
    • http://www.gorillawalker.com/keep-watching-the-skies-american-science-fiction-movies-of-the.pdf
    • http://www.gorillawalker.com/a-soldier-of-the-legion-an-englishman-s-adventures-under.pdf
    • http://www.gorillawalker.com/9th-edition-examkrackers-mcat-chemistry-examkrackers-mcat-manuals.pdf
    • http://www.gorillawalker.com/total-reading-grade-2.pdf
    • http://www.gorillawalker.com/shot-at-dawn.pdf
    • http://www.gorillawalker.com/the-playboy-s-proposition-the-power-to-please.pdf
    • http://www.gorillawalker.com/lethal-rhythm.pdf
    • http://www.gorillawalker.com/baby-foxes-blastoff-readers-level-1.pdf
    • http://www.gorillawalker.com/trails-illustrated-national-parks-denali-trails-illustrated-topo-maps-usa.pdf
    • http://www.gorillawalker.com/there-and-back-bayou-jazz-lives.pdf
    • http://www.gorillawalker.com/california-law-enforcement-pelletb-exam-review-guide.pdf
    • http://www.gorillawalker.com/jack-hildreth-on-the-nile.pdf
    • http://www.gorillawalker.com/geometr-a-fractal-escabrosidad-en-las-catedrales-parametrizaci-n-fractal.pdf
    • http://www.gorillawalker.com/victorian-costume-costume-accessories.pdf
    • http://www.gorillawalker.com/che-in-africa-che-guevara-s-congo-diary.pdf
    • http://www.gorillawalker.com/los-eddas-traducci-n-del-antiguo-idioma-escandinavo-spanish-edition.pdf
    • http://www.gorillawalker.com/escape-from-the-tentacle-demons-bundle.pdf
    • http://www.gorillawalker.com/nikon-d90-for-dummies-publisher-for-dummies.pdf
    • http://www.gorillawalker.com/doctors-law.pdf
    • http://www.gorillawalker.com/elements-of-quaternions-1891.pdf
    • http://www.gorillawalker.com/salamander-warhammer-40-000-novels-space-marine-battles.pdf
    • http://www.gorillawalker.com/father-of-the-blob-the-making-of-a-monster-smash.pdf
    • http://www.gorillawalker.com/calvary-a-lenten-rosary-reflection.pdf
    • http://www.gorillawalker.com/girlosophy-real-girls-stories-girlosophy-series.pdf
    • http://www.gorillawalker.com/my-place-unabridged-audible-audio-edition.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/

Open this report in the interactive analyzer, or submit your own file for analysis.