Malicious PDF — malware analysis report

Static analysis result for SHA-256 8de245bc1c45361c…

MALICIOUS

PDF

42.7 KB Created: 2019-03-17 11:02:42 +03:00 Authoring application: Pdf995 (via GNU Ghostscript 7.05)
MD5: c79c9b5d851974034a725aa10e517f8b SHA-1: 4be380cb9a1fc84e19e63a83d3f141a22bc6ea71 SHA-256: 8de245bc1c45361c78e0845fb78e202a8f723b316e8ce0bbc67f3a4d0535628a
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF file contains a large number of embedded links pointing to external websites, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged this PDF as malicious. The document body is heavily obfuscated and does not provide clear textual lures, but the sheer volume of links suggests an attempt to drive traffic to potentially malicious or spam content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8242

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/watching-kansas-wildlife-a-guide-to-101-sites.pdf
    • http://www.gorillawalker.com/sexy-adult-milf-cassie-21-cassie-the-nude-sexy-milf.pdf
    • http://www.gorillawalker.com/father-of-faith-missions-the-life-and-times-of-anthony.pdf
    • http://www.gorillawalker.com/next-of-kin-erotic-taboo-romance.pdf
    • http://www.gorillawalker.com/beethoven-sontata-opus-27-no-2-moonlight-for-piano-kalmus.pdf
    • http://www.gorillawalker.com/pharmacology-for-the-primary-care-provider-3e-edmunds-pharmacology-for.pdf
    • http://www.gorillawalker.com/a-wilder-rose-a-reader-s-companion-kindle-edition.pdf
    • http://www.gorillawalker.com/expert-testimony.pdf
    • http://www.gorillawalker.com/good-dog-paw.pdf
    • http://www.gorillawalker.com/the-elements-of-graphing-data.pdf
    • http://www.gorillawalker.com/integrated-circuit-metrology-inspection-and-process-control-vii.pdf
    • http://www.gorillawalker.com/drama-queen-kylie-jean.pdf
    • http://www.gorillawalker.com/the-rugby-coaching-manual-rugby-unlocked-and-it-s-not.pdf
    • http://www.gorillawalker.com/eyewitness-gandhi.pdf
    • http://www.gorillawalker.com/evernight-evernight-novels-quality-french-edition.pdf
    • http://www.gorillawalker.com/seeing-christ-in-amos-the-roar-of-jehovah-god-has.pdf
    • http://www.gorillawalker.com/greek-recipes-for-a-flat-belly-and-grilling-recipes-for.pdf
    • http://www.gorillawalker.com/little-hawaiian-party-food-cookbook.pdf
    • http://www.gorillawalker.com/immortal-muse.pdf
    • http://www.gorillawalker.com/latino-pentecostal-identity-evangelical-faith-self-and-society.pdf
    • http://www.gorillawalker.com/when-i-fall-in-love-macleod-series-book-10.pdf
    • http://www.gorillawalker.com/the-realisation-of-concession-in-the-discourse-of-judges-a.pdf
    • http://www.gorillawalker.com/hiking-utah-state-hiking-guides-series.pdf
    • http://www.gorillawalker.com/joined-up-writing-we-want-to-learn.pdf
    • http://www.gorillawalker.com/ellora-s-cave-presents-highland-stallion.pdf
    • http://www.gorillawalker.com/las-moradas-filosofales-esoterismo-volume-6-spanish-edition.pdf
    • http://www.gorillawalker.com/peter-erskine-drum-concepts-and-techniques.pdf
    • http://www.gorillawalker.com/participation-in-america-political-democracy-and-social-equality.pdf
    • http://www.gorillawalker.com/lady-anne-s-quest-prairie-dreams-book-2-kindle-edition.pdf
    • http://www.gorillawalker.com/the-american-bankruptcy-law-journal-a-quarterly-journal-vol-82.pdf
    • http://www.gorillawalker.com/the-book-of-god-and-physics-a-novel-of-the.pdf
    • http://www.gorillawalker.com/unfinished-life-autobiography-dance-horizons-series-30.pdf
    • http://www.gorillawalker.com/the-death-of-the-west-how-dying-populations-and-immigrant.pdf
    • http://www.gorillawalker.com/the-politics-of-memory-native-historical-interpretation-in-the-colombian.pdf
    • http://www.gorillawalker.com/a-da-act-ii-triumphal-march-concert-version-oboe-1.pdf
    • http://www.gorillawalker.com/asleep.pdf
    • http://www.gorillawalker.com/united-arab-emirates-1990-a-meed-practical-guide.pdf
    • http://www.gorillawalker.com/la-mal-diction-de-cypris-french-edition.pdf
    • http://www.gorillawalker.com/the-political-economy-of-marx.pdf
    • http://www.gorillawalker.com/land-o-lakes-classic-cookies-baking-and-more.pdf
    • http://www.gorillawalker.com/exp
    • 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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