Malicious PDF — malware analysis report

Static analysis result for SHA-256 80abf729f98687cf…

MALICIOUS

PDF

42.9 KB Created: 2019-02-13 20:55:20 +03:00 Authoring application: - (via Acrobat Distiller 5.0.1 for Macintosh)
MD5: 4e2b220ba5b8c6fb80e327ad506b5c59 SHA-1: 23ec18625beb6695af810ec503ead1ef6ec99f50 SHA-256: 80abf729f98687cf81c0757c554d1cd6815323b23ed26e4e460e6a2a5401e558
90 Risk Score

Malware Insights

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

The PDF was flagged by a critical heuristic for containing a mass external link farm, with 32 links identified. The ML classifier also strongly indicated maliciousness. While no scripts were extracted, the sheer volume of links to external PDF files hosted on 'gorillawalker.com' suggests a coordinated effort to manipulate search engine results or to distribute further malicious content through these linked documents.

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/perspectives-on-charismatic-renewal.pdf
    • http://www.gorillawalker.com/a-game-of-battleships-chronicles-of-isambard-smith.pdf
    • http://www.gorillawalker.com/coder-s-dictionary-2010-ingenix-product.pdf
    • http://www.gorillawalker.com/a-treasury-of-prayers.pdf
    • http://www.gorillawalker.com/iglesia-con-prop-sito-una.pdf
    • http://www.gorillawalker.com/moto-x-freestyle-blazers-x-games.pdf
    • http://www.gorillawalker.com/suzuki-dl-650-v-strom-repair-manual-2004-2011-haynes.pdf
    • http://www.gorillawalker.com/the-holy-bible-containing-the-old-and-new-testaments-with.pdf
    • http://www.gorillawalker.com/material-witness-a-shipshewana-amish-mystery.pdf
    • http://www.gorillawalker.com/corsica-landscapes-series.pdf
    • http://www.gorillawalker.com/teaching-and-learning-with-technology-book-alone-3rd-edition.pdf
    • http://www.gorillawalker.com/viking-mine-viking-ancient-worlds-historical-romance.pdf
    • http://www.gorillawalker.com/the-egypt-of-the-pharaohs-at-the-cairo-museum.pdf
    • http://www.gorillawalker.com/markesinis-and-deakin-s-tort-law.pdf
    • http://www.gorillawalker.com/the-last-of-the-incas-by-gustave-aimard-tr-by.pdf
    • http://www.gorillawalker.com/gatherings-and-celebrations-history-folklore-rituals-and-recipes-for-the.pdf
    • http://www.gorillawalker.com/naomi-s-story-a-romance-in-amish-country-story-kindle.pdf
    • http://www.gorillawalker.com/wild-cards-der-sieg-der-verlierer-german-edition.pdf
    • http://www.gorillawalker.com/do-unto-otters-a-book-about-manners.pdf
    • http://www.gorillawalker.com/until-today.pdf
    • http://www.gorillawalker.com/mental-health-in-the-workplace-a-practic.pdf
    • http://www.gorillawalker.com/help-my-spouse-committed-adultery-first-steps-for-dealing-with.pdf
    • http://www.gorillawalker.com/2015-international-building-code-and-significant-changes-to-the-2015.pdf
    • http://www.gorillawalker.com/performing-feminisms-feminist-critical-theory-and-theatre.pdf
    • http://www.gorillawalker.com/oliver-stone-close-up-the-making-of-his-movies-close.pdf
    • http://www.gorillawalker.com/dear-mamma-please-don-t-die.pdf
    • http://www.gorillawalker.com/diabetes-ayurvedic-herbal-palliative-therapy.pdf
    • http://www.gorillawalker.com/story-puzzles-tales-in-the-tangram-tradition.pdf
    • http://www.gorillawalker.com/belfast-an-illustrated-architectural-guide.pdf
    • http://www.gorillawalker.com/from-reaction-to-cognition-5th-european-workshop-on-modelling-autonomous.pdf
    • http://www.gorillawalker.com/noir-blanc-montres-et-cr.pdf
    • http://www.gorillawalker.com/country-girls-5-same-ole-country-azz-chicks.pdf
    • http://www.gorillawalker.com/professional-cooking-7th-edition.pdf
    • http://www.gorillawalker.com/recuerdos-cuban-fire-brass-band-guitar-electric-bass-brass-band.pdf
    • http://www.gorillawalker.com/mesothelioma-the-story-of-an-illness.pdf
    • http://www.gorillawalker.com/fy-mywyd-fel-iddew-cyfres-o-r-dechrau-i-r.pdf
    • http://www.gorillawalker.com/psoriasis-and-other-skin-diseases-b-743.pdf
    • http://www.gorillawalker.com/marquinho-mendonca-volume-1-book-2-cd-set.pdf
    • http://www.gorillawalker.com/teaching-in-practice-how-professionals-can-work-effectively-with-clients.pdf
    • http://www.gorillawalker.com/paleo-diet-for-weight-loss-health-learning-series-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/

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