Malicious PDF — malware analysis report

Static analysis result for SHA-256 45b27a0c8a0cd568…

MALICIOUS

PDF

33.3 KB Created: 2019-05-24 00:42:54 +03:00 Authoring application: Adobe InDesign CC 2014 (Windows) (via Adobe PDF Library 11.0)
MD5: a8253f54cd4f5b8fbdb90590303ef954 SHA-1: 5004f79e2b25f9fc7c419a6b03a2f8c2f5e7c6ce SHA-256: 45b27a0c8a0cd5684afcae116505e860d0bc5ca3c19bbbcfae63aec081128bed
90 Risk Score

Malware Insights

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

The PDF was flagged by a machine learning classifier as malicious. A critical heuristic identified it as a link farm, containing 32 external links to other PDFs hosted on www.gorillawalker.com. The document body appears to be heavily obfuscated or corrupted, preventing analysis of its specific content or intent beyond the link farm.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8313

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/la-historia-del-bufon-alegre-contador-the-story-of-the.pdf
    • http://www.gorillawalker.com/1-250-000-bathymetry-series-fiji.pdf
    • http://www.gorillawalker.com/evaluation-ethics-for-best-practice-cases-and-commentaries.pdf
    • http://www.gorillawalker.com/the-mathematical-papers-of-isaac-newton-volume-6-the-mathematical.pdf
    • http://www.gorillawalker.com/oracle-dba-on-unix-and-linux.pdf
    • http://www.gorillawalker.com/concierto-de-aranjuez-guitar-piano-reduction.pdf
    • http://www.gorillawalker.com/souvenir-survivors-association-gettysburg-1888-9-classic-reprint.pdf
    • http://www.gorillawalker.com/century-21-accounting-foreign-exchange-transaltion-service-simulation-manual-for.pdf
    • http://www.gorillawalker.com/humanity-in-healthcare-the-heart-and-soul-of-medicine.pdf
    • http://www.gorillawalker.com/using-cadkey-and-its-applications-version-7.pdf
    • http://www.gorillawalker.com/how-to-probate-an-estate-how-to-probate-an-estate.pdf
    • http://www.gorillawalker.com/architecture-residential-drafting-and-design-instructor-resource-binder.pdf
    • http://www.gorillawalker.com/how-to-write-and-speak-better.pdf
    • http://www.gorillawalker.com/a-kid-a-grown-up-a-travel-bug-a-you.pdf
    • http://www.gorillawalker.com/erich-maria-remarque-s-all-quiet-on-the-western-front.pdf
    • http://www.gorillawalker.com/stan-douglas-contemporary-artists-phaidon.pdf
    • http://www.gorillawalker.com/digital-simulation-of-dynamic-systems-a-control-theory-approach.pdf
    • http://www.gorillawalker.com/robot-motion-and-control-2007-lecture-notes-in-control-and.pdf
    • http://www.gorillawalker.com/environmental-disasters-natural-recovery-and-human-responses.pdf
    • http://www.gorillawalker.com/me-and-my-boyfriend-red-hot-is-love-even-stronger.pdf
    • http://www.gorillawalker.com/the-birds-of-pakistan-volume-1.pdf
    • http://www.gorillawalker.com/vacation-bible-school-vbs-2014-workshop-of-wonders-complete-music.pdf
    • http://www.gorillawalker.com/guardians-the-triplex-volume-4.pdf
    • http://www.gorillawalker.com/six-tales-from-shakespeare-stories-to-remember.pdf
    • http://www.gorillawalker.com/the-bogle-kindle-edition.pdf
    • http://www.gorillawalker.com/women-s-costumes-twentieth-century-developments-in-fashion-and-costume.pdf
    • http://www.gorillawalker.com/interlaken-ski.pdf
    • http://www.gorillawalker.com/blood-reign-4-alpha-warriors-of-the-blood-the-blood.pdf
    • http://www.gorillawalker.com/sailing-the-pink-sea.pdf
    • http://www.gorillawalker.com/searching-for-the-spirit-of-american-democracy-max-weber-s.pdf
    • http://www.gorillawalker.com/implementing-public-policy-an-introduction-to-the-study-of-operational.pdf
    • http://www.gorillawalker.com/edith-wharton-as-spatial-activist-and-analyst-studies-in-major.pdf
    • http://www.gorillawalker.com/canoeing-adventures-in-northern-illinois-apple-river-to-zuma-creek.pdf
    • http://www.gorillawalker.com/black-pearl-saloon-the-gunsmith-book-36-kindle-edition.pdf
    • http://www.gorillawalker.com/i-kill-giants-titan-edition-by-joe-kelly-mar-30.pdf
    • http://www.gorillawalker.com/said-the-shotgun-to-the-head.pdf
    • http://www.gorillawalker.com/molecularly-imprinted-polymers-volume-23-man-made-mimics-of-antibodies.pdf
    • http://www.gorillawalker.com/walking-bass-solos-for-guitar-book-cd-set.pdf
    • http://www.gorillawalker.com/4-pezzi-sacri-stabat-mater-no-2-trombone-1-part.pdf
    • http://www.gorillawalker.com/violin-sonata-d-major-op-11-no-2-composer-paul.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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