Malicious PDF — malware analysis report

Static analysis result for SHA-256 38b09f113df42ffe…

MALICIOUS

PDF

42.8 KB Created: 2019-04-30 16:29:15 +03:00 Authoring application: CorelDRAW X8 (via Corel PDF Engine Version 18.1.0.661)
MD5: 416be9a8a782546c5b51e40239e52045 SHA-1: 2a443ddbb67a6eb99d7415163c6526dae189c8a6 SHA-256: 38b09f113df42ffe3ddc6c0e860755ca8793f9162ccbec856b1b0d6939a8f6bb
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged by a machine learning classifier and contains a large number of embedded links to external PDF files, indicating a potential SEO spam or link farm attack. The primary heuristic identified a "PDF_SEO_LINK_FARM" with 32 external links, suggesting the document's purpose is to manipulate search engine results or distribute content from these linked URLs. The ML classifier's high score further supports the malicious nature of the file.

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/mi-examen-de-conciencia-spanish-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/shake-it-up-chic-cocktails-girly-drinks.pdf
    • http://www.gorillawalker.com/einstein-s-science-parties-easy-parties-for-curious-kids.pdf
    • http://www.gorillawalker.com/pressing.pdf
    • http://www.gorillawalker.com/rich-dad-s-retire-young-retire-rich-how-to-get.pdf
    • http://www.gorillawalker.com/pen-calligraphy-manual.pdf
    • http://www.gorillawalker.com/the-food-of-china.pdf
    • http://www.gorillawalker.com/spanish-picture-dictionary-for-kids-of-all-ages-kindle-edition.pdf
    • http://www.gorillawalker.com/hipaa-omnibus-rules-simplified-the-hipaa-made-easy-approach-to.pdf
    • http://www.gorillawalker.com/practical-lock-picking-a-physical-penetration-tester-s-training-guide.pdf
    • http://www.gorillawalker.com/house-of-ages.pdf
    • http://www.gorillawalker.com/everyday-mathematics-skills-links-student-book-level-2.pdf
    • http://www.gorillawalker.com/georgis-parasitology-for-veterinarians-9e-by-bowman-ms-phd-dwight.pdf
    • http://www.gorillawalker.com/small-town-fireman-gordon-falls.pdf
    • http://www.gorillawalker.com/perry-rhodan-neo-96-german-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/talking-philosophy-dialogues-with-fifteen-leading-philosophers.pdf
    • http://www.gorillawalker.com/bible-atlas-publisher-holman-reference.pdf
    • http://www.gorillawalker.com/archaeologies-of-the-future-the-desire-called-utopia-and-other.pdf
    • http://www.gorillawalker.com/reproduction-in-domestic-animals-fourth-edition.pdf
    • http://www.gorillawalker.com/dark-and-dawn-an-easter-anthem-sheet-music-for-mixed.pdf
    • http://www.gorillawalker.com/let-s-play-soccer-sports-and-activities.pdf
    • http://www.gorillawalker.com/emily-climbs.pdf
    • http://www.gorillawalker.com/bluenose-lake-safety-book-the-essential-lake-safety-guide-for.pdf
    • http://www.gorillawalker.com/parkinson-s-disease-movement-disorders.pdf
    • http://www.gorillawalker.com/signal-processing-of-random-physiological-signals-synthesis-lectures-on-biomedical.pdf
    • http://www.gorillawalker.com/in-destiny-s-hands-five-tragic-rulers-children-of-maria.pdf
    • http://www.gorillawalker.com/criminal-investigation-instructor-s-resource-manual-with-test-bank.pdf
    • http://www.gorillawalker.com/captain-john-smith-a-foothold-in-the-new-world-audiobook.pdf
    • http://www.gorillawalker.com/futures-for-small-speculators-companion-guide.pdf
    • http://www.gorillawalker.com/martin-luther-king-jr-homosexuality-and-the-early-gay-rights.pdf
    • http://www.gorillawalker.com/evolution-of-consciousness.pdf
    • http://www.gorillawalker.com/perfetto-volume-1-italian-edition.pdf
    • http://www.gorillawalker.com/scrappy-hooked-rugs-making-the-most-of-the-wool-in.pdf
    • http://www.gorillawalker.com/gold-mining-formation-and-resource-estimation-economics-and-environmental-impact.pdf
    • http://www.gorillawalker.com/betsy-ross-american-revolution-biographies.pdf
    • http://www.gorillawalker.com/the-beast-reborn-montclaire-weekend-mysteries-book-5-kindle-edition.pdf
    • http://www.gorillawalker.com/letters-on-the-commerce-and-politics-of-abessinia-and-other.pdf
    • http://www.gorillawalker.com/pignic-an-alphabet-book-in-rhyme.pdf
    • http://www.gorillawalker.com/what-einstein-told-his-cook-2-the-sequel-further-adventures.pdf
    • http://www.gorillawalker.com/what-praise-can-i-play-for-christmas-11-easily-prepared.pdf
    • http://www.gorillawalker.com/hipaa-omnibus-rules-simplified-the-hipaa-mad
    • 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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