Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9e5f3453d1463e2…

MALICIOUS

PDF

41.2 KB Created: 2019-02-14 08:12:26 +03:00 Authoring application: - (via Adobe Acrobat 10.0 Paper Capture Plug-in)
MD5: 730274700dcec8a603dd03bec2c2241e SHA-1: 25901f00a06295360f87d12c8bbdfeebfb2bb09a SHA-256: f9e5f3453d1463e218fa49879e58355e1eebb2eab81a24bce57b8870e7d45aff
60 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF contains a large number of embedded links to external PDF files, primarily hosted on www.gorillawalker.com. This technique is often used for SEO manipulation or to distribute malicious content indirectly. No scripts were extracted, and the document body was heavily obfuscated, making it difficult to determine a more specific attack pattern. The primary IOCs are the URLs pointing to the linked PDF files.

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/cape-cod-2015-the-food-enthusiast-s-complete-restaurant-guide.pdf
    • http://www.gorillawalker.com/ballerina-rosie.pdf
    • http://www.gorillawalker.com/the-review-of-scientific-instruments-volume-44-new-series-1973.pdf
    • http://www.gorillawalker.com/heaven-below-early-pentecostals-and-american-culture.pdf
    • http://www.gorillawalker.com/500-greatest-albums-of-all-times-the.pdf
    • http://www.gorillawalker.com/rainbow-magic-catherine-the-fashion-princess-fairy.pdf
    • http://www.gorillawalker.com/by-warner-bros-consumer-products-2014-harry-potter-wall-calendar.pdf
    • http://www.gorillawalker.com/a-history-of-us-book-9-war-peace-and-all.pdf
    • http://www.gorillawalker.com/cleopatra-a-study-in-politics-and-propaganda.pdf
    • http://www.gorillawalker.com/bahama-islands.pdf
    • http://www.gorillawalker.com/vascular-system-and-viscera-anatomical-chart.pdf
    • http://www.gorillawalker.com/medieval-iceland-society-sagas-and-power.pdf
    • http://www.gorillawalker.com/printing-art-and-craft-skills-sea-to-sea.pdf
    • http://www.gorillawalker.com/the-principles-of-tennis-an-instructional-guide-to-help-improve.pdf
    • http://www.gorillawalker.com/the-libertine-french-surrealism.pdf
    • http://www.gorillawalker.com/the-girl-who-could-fly.pdf
    • http://www.gorillawalker.com/institutes-of-the-christian-religion-vol-1.pdf
    • http://www.gorillawalker.com/tasty-hucow-tales-books-4-6-taboo-hucow-erotica.pdf
    • http://www.gorillawalker.com/british-television-drama-in-the-1980s.pdf
    • http://www.gorillawalker.com/an-essential-guide-for-the-isfp-personality-type-insight-into.pdf
    • http://www.gorillawalker.com/an-illustrated-buide-to-bangkok.pdf
    • http://www.gorillawalker.com/traitor-to-his-class-the-privileged-life-and-radical-presidency.pdf
    • http://www.gorillawalker.com/table-for-two-back-for-seconds.pdf
    • http://www.gorillawalker.com/discrete-time-control-systems-2nd-edition.pdf
    • http://www.gorillawalker.com/paleo-muffins-gluten-free-muffin-recipes-for-a-paleo-diet.pdf
    • http://www.gorillawalker.com/en-espa-ol-eedition-cd-rom-5-pack-level-1a.pdf
    • http://www.gorillawalker.com/history-of-the-house-of-siemens-2-vols-the-era.pdf
    • http://www.gorillawalker.com/the-correct-thing.pdf
    • http://www.gorillawalker.com/1001-songs-you-must-hear-before-you-die-and-10.pdf
    • http://www.gorillawalker.com/echoes-on-rimrock-in-pursuit-of-the-chukar-partridge-the.pdf
    • http://www.gorillawalker.com/cricket-coaching-manual.pdf
    • http://www.gorillawalker.com/only-one-way-home-an-inspirational-novel-of-history-mystery.pdf
    • http://www.gorillawalker.com/psychophysics-introduction-to-its-perceptual-neural-and-social-prospects.pdf
    • http://www.gorillawalker.com/introduction-to-veterinary-science.pdf
    • http://www.gorillawalker.com/monogatari-bungaku-no-gensetsu-japanese-edition.pdf
    • http://www.gorillawalker.com/architectural-acoustics-pocketarchitecture.pdf
    • http://www.gorillawalker.com/honey-what-s-for-lunch.pdf
    • http://www.gorillawalker.com/more-effective-c-35-new-ways-to-improve-your-programs.pdf
    • http://www.gorillawalker.com/dick-tracy-the-collins-casefiles-vol-3-dick-tracy-the.pdf
    • http://www.gorillawalker.com/readable-relativity.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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