Malicious PDF — malware analysis report

Static analysis result for SHA-256 8da969764fd62ce0…

MALICIOUS

PDF

46.8 KB Created: 2018-11-30 20:34:03 +03:00 Authoring application: ABBYY FineReader 8.0 Professional Edition
MD5: 766c77fa1d96b2236f2ba50173923c30 SHA-1: 082f1780bc43bfa021785b87403c76c600228e5a SHA-256: 8da969764fd62ce07cc20d5da501fcb49d8e1504cf9a3c878f392964d5a1f784
90 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing to PDF documents on the domain 'gorillawalker.com'. The heuristic 'PDF_SEO_LINK_FARM' indicates this is a link farm, suggesting the document's primary purpose is to drive traffic to these external links. The ML classifier also flagged the PDF as malicious. While no scripts were extracted, the sheer volume of links and the ML classification strongly suggest a malicious intent, possibly for SEO abuse or to distribute further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8026

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/introduction-to-international-political-economy-6th-edition.pdf
    • http://www.gorillawalker.com/the-new-american-grandparent-a-place-in-the-family-a.pdf
    • http://www.gorillawalker.com/the-gospel-of-mark-the-daily-study-bible-series-paperback.pdf
    • http://www.gorillawalker.com/contemporary-japanese-politics-institutional-changes-and-power-shifts-contemporary-asia.pdf
    • http://www.gorillawalker.com/pbx-systems-for-ip-telephony.pdf
    • http://www.gorillawalker.com/militant-islam-in-southeast-asia-crucible-of-terror.pdf
    • http://www.gorillawalker.com/hunter-gatherer-specialised-subsistence-strategies-in-greece-during-the-upper.pdf
    • http://www.gorillawalker.com/under-the-persimmon-tree.pdf
    • http://www.gorillawalker.com/rocky-mountain-match-mills-boon-love-inspired.pdf
    • http://www.gorillawalker.com/self-publishing-with-amazon-s-createspace-a-resource-guide-for.pdf
    • http://www.gorillawalker.com/training-in-interpersonal-skills-dutch.pdf
    • http://www.gorillawalker.com/chronic-pain-biological-understanding-and-treatment-suggestions-for-mental-health.pdf
    • http://www.gorillawalker.com/peru-the-people-and-culture-lands-peoples-cultures.pdf
    • http://www.gorillawalker.com/social-contours-of-risk-volume-ii-risk-analysis-corporations-and.pdf
    • http://www.gorillawalker.com/waves-and-instabilities-in-plasmas-world-scientific-lecture-notes-in.pdf
    • http://www.gorillawalker.com/think-like-a-lawyer-don-t-act-like-one-kindle.pdf
    • http://www.gorillawalker.com/bits-and-bitting-manual.pdf
    • http://www.gorillawalker.com/fernando-castro-pacheco-color-e-imagen-de-yucatan-yucatan-raices.pdf
    • http://www.gorillawalker.com/a-terrible-beauty-poetry-of-1916.pdf
    • http://www.gorillawalker.com/100-information-literacy-success-100-success-series.pdf
    • http://www.gorillawalker.com/a-zombie-ate-my-cupcake-25-deliciously-weird-cupcake-recipes.pdf
    • http://www.gorillawalker.com/lsu-tigers-2015-calendar.pdf
    • http://www.gorillawalker.com/paediatric-nephrology-oxford-specialist-handbooks-series-in-paediatrics.pdf
    • http://www.gorillawalker.com/school-refusal-behavior-in-youth-a-functional-approach-to-assessment.pdf
    • http://www.gorillawalker.com/thinking-in-physics-the-pleasure-of-reasoning-and-understanding.pdf
    • http://www.gorillawalker.com/manual-of-home-health-nursing-procedures-2e.pdf
    • http://www.gorillawalker.com/conchiologia-fossile-subapennina-con-osservazioni-geologische-sugli-apennini-e-sul.pdf
    • http://www.gorillawalker.com/the-anatomy-of-melancholy-hardcover.pdf
    • http://www.gorillawalker.com/earth-moon.pdf
    • http://www.gorillawalker.com/jos-mourinho-special-leadership-special-leadership.pdf
    • http://www.gorillawalker.com/medicines-ethics-and-practice-a-guide-for-pharmacists.pdf
    • http://www.gorillawalker.com/123-jan-pienkowski-board-book-series.pdf
    • http://www.gorillawalker.com/ultimate-galactus-vol-2-secret-secret-v-2.pdf
    • http://www.gorillawalker.com/attorney-client-privileges-a-professional-cuckold-adventure-professional-cuckold-adventures.pdf
    • http://www.gorillawalker.com/learn-from-bobby-fischer-s-greatest-games.pdf
    • http://www.gorillawalker.com/dry-brushing-a-guide-to-improving-your-skin-and-health.pdf
    • http://www.gorillawalker.com/heart-fire-celta.pdf
    • http://www.gorillawalker.com/the-san-francisco-earthquake-the-american-adventure-series-32.pdf
    • http://www.gorillawalker.com/percussion-drumming-beating-striking.pdf
    • http://www.gorillawalker.com/tess-of-the-d-ubervilles-illustrated-kindle-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/