Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5f0edf580be716c…

MALICIOUS

PDF

42.3 KB Created: 2018-12-15 08:11:08 +03:00 Authoring application: Writer (via LibreOffice 4.2)
MD5: 7d728b52e58554bbb4964856e0fea4b5 SHA-1: 0d5e4631baaf6f70fc73688354bacee84f417f88 SHA-256: c5f0edf580be716c37b642cdc0a9433c3bf9f5876775c8081ad8a0b1ce2bf88c
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF contains a large number of embedded links pointing to external PDF files, a technique often used for SEO poisoning 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, preventing a deeper analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9181

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/an-atlas-of-small-parts-and-musculoskeletal-ultrasound-with-color.pdf
    • http://www.gorillawalker.com/it-s-your-ship-management-techniques-from-the-best-damn.pdf
    • http://www.gorillawalker.com/interpreting-the-new-testament-text-introduction-to-the-art-and.pdf
    • http://www.gorillawalker.com/the-elegant-self-a-radical-approach-to-personal-evolution-for.pdf
    • http://www.gorillawalker.com/manuelita-donde-vas-alfaguara-infantil-spanish-edition.pdf
    • http://www.gorillawalker.com/where-to-ski-and-snowboard-2002.pdf
    • http://www.gorillawalker.com/further-adventures-at-the-bridge-table.pdf
    • http://www.gorillawalker.com/hikes-around-invermere-the-columbia-river-valley.pdf
    • http://www.gorillawalker.com/how-to-read-lacan-how-to-read.pdf
    • http://www.gorillawalker.com/the-makeover-in-movies-before-and-after-in-hollywood-films.pdf
    • http://www.gorillawalker.com/ella-s-junk-cheating-wife-milf-erotica-milf-money-for.pdf
    • http://www.gorillawalker.com/his-first-love-true-nevada-hearts-kindle-edition.pdf
    • http://www.gorillawalker.com/upper-miocene-echinoids-from-the-yorktown-formation-of-virginia-and.pdf
    • http://www.gorillawalker.com/subarachnoid-haemorrhage.pdf
    • http://www.gorillawalker.com/ravel-the-decadent-memory-sublimation-and-desire-kindle-edition.pdf
    • http://www.gorillawalker.com/the-2009-2014-world-outlook-for-aerospace-type-hydraulic-and.pdf
    • http://www.gorillawalker.com/bwwm-his-ebony-desire-bwwm-romance-erotica.pdf
    • http://www.gorillawalker.com/in-praise-of-grandmothers.pdf
    • http://www.gorillawalker.com/hear-the-dead-cry.pdf
    • http://www.gorillawalker.com/motorcycle-fuel-systems-techbook.pdf
    • http://www.gorillawalker.com/staffing-management-and-methods-tools-and-techniques-for-nurse-leaders.pdf
    • http://www.gorillawalker.com/demographic-and-behavioral-aspects-of-population-movement-with-relevance-to.pdf
    • http://www.gorillawalker.com/darkest-waters-notorious-usa.pdf
    • http://www.gorillawalker.com/the-rule-of-saint-benedict-initiation-into-the-monastic-tradition.pdf
    • http://www.gorillawalker.com/advances-in-chemical-conversions-for-mitigating-carbon-dioxide-studies-in.pdf
    • http://www.gorillawalker.com/seven-insurers-sued-for-auto-parts-use-statistical-data-included.pdf
    • http://www.gorillawalker.com/moon-spotlight-columbia-river-gorge.pdf
    • http://www.gorillawalker.com/southwest-cooking-succulent-savory-authentic.pdf
    • http://www.gorillawalker.com/chinese-archery.pdf
    • http://www.gorillawalker.com/disclosing-new-worlds-entrepreneurship-democratic-action-and-the-cultivation-of.pdf
    • http://www.gorillawalker.com/tchaikovsky-18-piano-pieces-op-72-music-scores.pdf
    • http://www.gorillawalker.com/the-good-nazi-the-life-and-lies-of-albert-speer.pdf
    • http://www.gorillawalker.com/frame-up-a-story-of-essex-its-shipyards-and-its.pdf
    • http://www.gorillawalker.com/2001-02-miller-local-government-audits.pdf
    • http://www.gorillawalker.com/package-design-index-2014.pdf
    • http://www.gorillawalker.com/travels-through-the-interior-provinces-of-colombia-volume-2.pdf
    • http://www.gorillawalker.com/basic-pathology-fifth-edition.pdf
    • http://www.gorillawalker.com/family-tree-ace.pdf
    • http://www.gorillawalker.com/brasses-and-brass-rubbing.pdf
    • http://www.gorillawalker.com/the-big-book-of-six-sigma-training-games-proven-ways.pdf
    • http://www.gorillawal
    • 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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