Malicious PDF — malware analysis report

Static analysis result for SHA-256 791448d45b832d02…

MALICIOUS

PDF

41.7 KB Created: 2018-11-15 18:31:32 +03:00 Authoring application: LaTeX with hyperref package (via pdfTeX-1.40.14)
MD5: e9f36a631a495197c9ce43604c9a77a7 SHA-1: 7e94a00ec107153e91fb64ffeb9db77c8013ea65 SHA-256: 791448d45b832d02fa077860a59939fae70abe87240012ea76d88f08d4cabf0c
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links pointing to external PDF files, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of specific user-facing lures.

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/trifle-the-english-kitchen.pdf
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    • http://www.gorillawalker.com/the-health-care-costs-of-skin-cancer-caused-by-ultraviolet.pdf
    • http://www.gorillawalker.com/wendy-and-the-lost-boys-the-uncommon-life-of-wendy.pdf
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    • http://www.gorillawalker.com/the-power-of-neurodiversity-unleashing-the-advantages-of-your-differently.pdf
    • http://www.gorillawalker.com/orthodoxy-for-the-non-orthodox-a-brief-introduction-to-orthodox.pdf
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    • http://www.gorillawalker.com/amigos-fama-a.pdf
    • http://www.gorillawalker.com/el-salvador-del-conflicto-armado-a-la-negociacion-1979-1989.pdf
    • http://www.gorillawalker.com/atlas-of-common-subluxations-of-the-human-spine-and-pelvis.pdf
    • http://www.gorillawalker.com/mindfitness-training-the-process-of-enhancing-profound-attention-using-neurofeedback.pdf
    • http://www.gorillawalker.com/guide-for-the-design-and-use-of-concrete-poles.pdf
    • http://www.gorillawalker.com/daisy-goes-shopping-daisy-jack.pdf
    • http://www.gorillawalker.com/love-in-the-time-of-climate-change.pdf
    • http://www.gorillawalker.com/exemplary-stem-programs-designs-for-success-pb192x10.pdf
    • http://www.gorillawalker.com/obsessed-with-a-billionaire-2-deutsche-version-german-edition-kindle.pdf
    • http://www.gorillawalker.com/conned-romance-explicit-content.pdf
    • http://www.gorillawalker.com/support-resistance-simplified.pdf
    • http://www.gorillawalker.com/handbook-of-electric-power-calculations-fourth-edition.pdf
    • http://www.gorillawalker.com/pendragon-the-pendragon-cycle-book-4.pdf
    • http://www.gorillawalker.com/great-american-prose-poems-from-poe-to-the-present.pdf
    • http://www.gorillawalker.com/say-it-right-in-spanish-audio-cd-and-book-the.pdf
    • http://www.gorillawalker.com/the-manner-born-birth-rites-in-cross-cultural-perspective.pdf
    • http://www.gorillawalker.com/the-princess-and-the-frog-junior-novelization-disney-princess-and.pdf
    • http://www.gorillawalker.com/persian-here-and-now-book-ii-intermediate-persian-persian-edition.pdf
    • http://www.gorillawalker.com/field-guide-to-california-rivers-california-natural-history-guides.pdf
    • http://www.gorillawalker.com/the-complete-minder.pdf
    • http://www.gorillawalker.com/killing-pablo-the-hunt-for-the-world-s-greatest-outlaw.pdf
    • http://www.gorillawalker.com/an-exposition-of-benevolence-the-jen-hsueh-of-t-an.pdf
    • http://www.gorillawalker.com/issues-in-public-health-understanding-public-health.pdf
    • http://www.gorillawalker.com/the-myth-of-more-and-other-lifetraps-that-sabotage-the.pdf
    • http://www.gorillawalker.com/the-virgin-s-lover-unabridged-audible-audio-edition.pdf
    • http://www.gorillawalker.com/clymer-honda-250-360cc-twins-1974-1977-service-repair-performance.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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