Malicious PDF — malware analysis report

Static analysis result for SHA-256 283e9e84e3c7f2a0…

MALICIOUS

PDF

29.3 KB Created: 2020-05-01 12:33:54 +03:00 Authoring application: Adobe InDesign CS (3.0) (via Adobe PDF Library 6.0)
MD5: 9382a6f9ed866cc85fafe1fc495be355 SHA-1: c036ba6ba99559bf2a7c150cb6eabad73ef04a31 SHA-256: 283e9e84e3c7f2a048b6c67420e81ac7be3a36802859e63dfff5c86c9ac1760f
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 as malicious. A critical heuristic identified a large number of external PDF links, suggesting a link farm or redirection tactic. The document body contains numerous URLs, all pointing to the same domain, which are likely used for SEO manipulation or to host further malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8412

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/the-shepherd-of-guadaloupe-a-western-story.pdf
    • http://www.gorillawalker.com/storybook-parties.pdf
    • http://www.gorillawalker.com/micro-and-nanophotonics-for-semiconductor-infrared-detectors-towards-an-ultimate.pdf
    • http://www.gorillawalker.com/sister-of-the-bride-first-love.pdf
    • http://www.gorillawalker.com/the-frog-scientist-scientists-in-the-field-series.pdf
    • http://www.gorillawalker.com/us-iran-show-of-force-in-iraq-an-article-from.pdf
    • http://www.gorillawalker.com/the-long-way-home-kindle-edition.pdf
    • http://www.gorillawalker.com/bumpety-bump.pdf
    • http://www.gorillawalker.com/obesidade-infantil-o-papel-da-escola-e-dos-professores-portuguese.pdf
    • http://www.gorillawalker.com/good-breeding.pdf
    • http://www.gorillawalker.com/the-backstage-handbook-an-illustrated-almanac-of-technical-information.pdf
    • http://www.gorillawalker.com/early-embryology-hardcover.pdf
    • http://www.gorillawalker.com/outlines-of-ayurveda.pdf
    • http://www.gorillawalker.com/the-protracted-game-a-wei-ch-i-interpretation-of-maoist.pdf
    • http://www.gorillawalker.com/nature-s-interpreter-the-life-and-times-of-alexander-von.pdf
    • http://www.gorillawalker.com/admirals-in-collision.pdf
    • http://www.gorillawalker.com/winning-on-the-stock-market-millard-on.pdf
    • http://www.gorillawalker.com/field-guide-to-herbs-spices-how-to-identify-select-and.pdf
    • http://www.gorillawalker.com/battle-group-german-kampfgruppen-action-of-world-war-two.pdf
    • http://www.gorillawalker.com/sacred-silhouettes.pdf
    • http://www.gorillawalker.com/ring-in-exaltation-organ-handbell-score-handbell-sheet-music-handbell.pdf
    • http://www.gorillawalker.com/oboe-sight-reading-1-the-sight-reading-series.pdf
    • http://www.gorillawalker.com/chiche-129-n-itza-129-a-practical-guide-and-photo.pdf
    • http://www.gorillawalker.com/projektierung-von-turboflugtriebwerken-technik-der-turboflugtriebwerke-german-edition.pdf
    • http://www.gorillawalker.com/bonfol.pdf
    • http://www.gorillawalker.com/building-materials-directory-2003.pdf
    • http://www.gorillawalker.com/remain-silent-first-time-for-everything-hands-on-the-wall.pdf
    • http://www.gorillawalker.com/moscow-russia-1-12-500-travel-map-international-travel-city.pdf
    • http://www.gorillawalker.com/back-of-the-envelope-physics-johns-hopkins-paperback.pdf
    • http://www.gorillawalker.com/cancer-the-complete-recovery-guide-book-5-herbs-botanicals-and.pdf
    • http://www.gorillawalker.com/introduction-to-spectroscopy.pdf
    • http://www.gorillawalker.com/1948-handy-railroad-atlas-of-the-united-states.pdf
    • http://www.gorillawalker.com/teaching-our-children-to-think.pdf
    • http://www.gorillawalker.com/the-collected-works-of-spinoza-volume-i.pdf
    • http://www.gorillawalker.com/knickers-in-a-twist-a-dictionary-of-british-slang-by.pdf
    • http://www.gorillawalker.com/full-metyl-felony.pdf
    • http://www.gorillawalker.com/fishes-of-the-pacific-coast-alaska-to-peru-including-the.pdf
    • http://www.gorillawalker.com/administrative-punishment-law-and-security-administration-punishment-paperback.pdf
    • http://www.gorillawalker.com/activity-costing-for-engineers-cl-engineering-management-series.pdf
    • http://www.gorillawalker.com/the-warlord-s-concubine-a-paranormal-romance-novel.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/