Malicious PDF — malware analysis report

Static analysis result for SHA-256 80377070d6af51bc…

MALICIOUS

PDF

42.4 KB Created: 2019-03-17 12:31:51 +03:00 Authoring application: Word (via Acrobat PDFMaker 15 for Word)
MD5: 30e179c102d9dbe79ad2c4f1c95a2120 SHA-1: 278c0cfe317ceda515b8ca9710ff9c55f7a2f9ef SHA-256: 80377070d6af51bc1ab8047ebbad2412f4573b537c9c8f329f3f64b4b447440b
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. No scripts were extracted, and the document body was heavily obfuscated, making it difficult to determine a more specific attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9181

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/tonguecat-a-novel.pdf
    • http://www.gorillawalker.com/grote-ervaringen-tijdens-myo-otiolo-avareno-en-hun-opvolgers-yunav.pdf
    • http://www.gorillawalker.com/handbook-of-methadone-prescribing-and-buprenorphine-therapy.pdf
    • http://www.gorillawalker.com/annie-s-baby-the-diary-of-anonymous-a-pregnant-teenager.pdf
    • http://www.gorillawalker.com/tales-from-the-heart-of-the-balkans-world-folklore-series.pdf
    • http://www.gorillawalker.com/time-and-man.pdf
    • http://www.gorillawalker.com/anatomy-demystified.pdf
    • http://www.gorillawalker.com/legend-a-harrowing-story-from-the-vietnam-war-of-one.pdf
    • http://www.gorillawalker.com/immunochemistry-in-practice.pdf
    • http://www.gorillawalker.com/basic-model-railroad-benchwork-model-railroader-essentials-series.pdf
    • http://www.gorillawalker.com/serving-him-vol-1-alpha-billionaire-romance.pdf
    • http://www.gorillawalker.com/frommer-s-paris-and-disneyland-resort-paris-with-your-family.pdf
    • http://www.gorillawalker.com/healthy-heart-fasting-diet-100-200-300-calories-with-high.pdf
    • http://www.gorillawalker.com/solving-equations-using-modified-fibonacci-sequences.pdf
    • http://www.gorillawalker.com/wolf-queen.pdf
    • http://www.gorillawalker.com/cissp-boxed-set-second-edition-all-in-one.pdf
    • http://www.gorillawalker.com/pocket-guide-to-crisis-intervention-pocket-guide-to-oxford.pdf
    • http://www.gorillawalker.com/a-day-that-changed-america-the-alamo.pdf
    • http://www.gorillawalker.com/manual-b-blico-de-halley-con-la-nueva-versi-n.pdf
    • http://www.gorillawalker.com/i-spy-with-my-little-eye-baseball.pdf
    • http://www.gorillawalker.com/fractions-in-disguise-charlesbridge-math-adventures-kindle-edition.pdf
    • http://www.gorillawalker.com/early-modern-catholics-royalists-and-cosmopolitans-english-transnationalism-and-the.pdf
    • http://www.gorillawalker.com/celtic-cable-shawls.pdf
    • http://www.gorillawalker.com/cold-courage-studio.pdf
    • http://www.gorillawalker.com/moving-up-to-gloryland.pdf
    • http://www.gorillawalker.com/the-night-land.pdf
    • http://www.gorillawalker.com/apostolic-church-of-the-pleroma-lectionary-for-mass.pdf
    • http://www.gorillawalker.com/differenti-le-diagnostiek-in-de-interne-geneeskunde-dutch-edition.pdf
    • http://www.gorillawalker.com/theory-and-design-in-the-first-machine-age-2nd-edition.pdf
    • http://www.gorillawalker.com/goosebumps-hall-of-horrors-5-don-t-scream.pdf
    • http://www.gorillawalker.com/porsche-the-story-of-a-german-legend.pdf
    • http://www.gorillawalker.com/also-sprach-zarathustra-thus-spoke-zarathustra-german-english-bilingual-text.pdf
    • http://www.gorillawalker.com/the-old-testament-high-school-group-study-the-ultimate-origin.pdf
    • http://www.gorillawalker.com/william-wilberforce-1759-1833-a-bibliography-bibliographies-of-british-statesmen.pdf
    • http://www.gorillawalker.com/benchmarks-revenue-and-employment-ratios-industry-trend-or-event-an.pdf
    • http://www.gorillawalker.com/catalogue-of-products-forwarded-by-the-secretary-of-public-works.pdf
    • http://www.gorillawalker.com/the-reclamation-the-club-trilogy-volume-2.pdf
    • http://www.gorillawalker.com/lincoln-s-preparation-for-greatness-illinois-legislative-years.pdf
    • http://www.gorillawalker.com/preliminary-axial-flow-turbine-design-and-off-design-performance-analysis.pdf
    • http://www.gorillawalker.com/understanding-assessing-and-teaching-reading-a-diagnostic-approach-enhanced-pearson.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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