Malicious PDF — malware analysis report

Static analysis result for SHA-256 374ec7c154af8d01…

MALICIOUS

PDF

32.8 KB Created: 2020-02-21 02:01:29 +03:00 Authoring application: http://www.helpandmanual.com (via wPDF3 by WPCubed GmbH)
MD5: ba8b3786f264cbfb9994f6e4cdc9a2da SHA-1: b343f54e152d459ea7ecfed650545aed1cf9eadf SHA-256: 374ec7c154af8d01d793c33d072b1ef07632e02b1d6d6faeb4ea10811b5ff4c5
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links to external PDF files, as indicated by the PDF_SEO_LINK_FARM heuristic. This suggests a link farm or a distribution mechanism for other malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8529

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/nurses-are-there-to-help-rosen-common-core-readers.pdf
    • http://www.gorillawalker.com/shives-basic-concepts-of-psychiatric-mental-health-nursing-7e-and.pdf
    • http://www.gorillawalker.com/child-maltreatment-a-clinical-guide-and-reference.pdf
    • http://www.gorillawalker.com/the-consequences-of-abortion.pdf
    • http://www.gorillawalker.com/the-dawn-of-love-yaoi-manga.pdf
    • http://www.gorillawalker.com/study-guide-for-african-americans-in-the-u-s-economy.pdf
    • http://www.gorillawalker.com/fo-ur-seasons-stories-of-poetry.pdf
    • http://www.gorillawalker.com/my-squirrely-husband-how-squirrels-entertained-a-family-for-25.pdf
    • http://www.gorillawalker.com/fireballs-meteors-meteorites.pdf
    • http://www.gorillawalker.com/historical-atlas-of-the-american-west.pdf
    • http://www.gorillawalker.com/millennium.pdf
    • http://www.gorillawalker.com/networks-of-modernism-reorganizing-american-narrative.pdf
    • http://www.gorillawalker.com/2009-advent-calendar-a-letter-to-santa-with-festive-fairy.pdf
    • http://www.gorillawalker.com/the-simon-kirby-library-science-fiction.pdf
    • http://www.gorillawalker.com/carta-enciclica-laudato-si-del-santo-padre-francisco-sobre-el.pdf
    • http://www.gorillawalker.com/film-and-video-budgets-pc-disk-second-edition.pdf
    • http://www.gorillawalker.com/calculation-of-drug-dosages.pdf
    • http://www.gorillawalker.com/vocabulary-for-the-college-bound-student-paperback-2003-4th-edition.pdf
    • http://www.gorillawalker.com/playboy-october-2000-bob-costas-interview-michael-johnson-20-questions.pdf
    • http://www.gorillawalker.com/awakening-a-new-world-book-5-unabridged-audible-audio-edition.pdf
    • http://www.gorillawalker.com/brand-yourself.pdf
    • http://www.gorillawalker.com/official-tna-wrestling-annual-2012.pdf
    • http://www.gorillawalker.com/soul-speak-the-language-of-your-body-by-julia-cannon.pdf
    • http://www.gorillawalker.com/the-illustrated-atlas-of-the-bible-lands.pdf
    • http://www.gorillawalker.com/dynamic-alignment-through-imagery-paperback.pdf
    • http://www.gorillawalker.com/better-dads-stronger-sons-how-fathers-can-guide-boys-to.pdf
    • http://www.gorillawalker.com/1986-guinness-book-of-world-records.pdf
    • http://www.gorillawalker.com/sandplay-silent-workshop-of-the-psyche.pdf
    • http://www.gorillawalker.com/murder-mysteries-true-horrific-and-unsolved-murder-cases-true-puzzling.pdf
    • http://www.gorillawalker.com/djinn-tome-4-le-tr.pdf
    • http://www.gorillawalker.com/the-fifty-days-of-joy-easter-reflections-for-new-catholics.pdf
    • http://www.gorillawalker.com/freestyle-sports-beats-book-4-kindle-edition.pdf
    • http://www.gorillawalker.com/healing-the-wounded-god-finding-your-personal-guide-on-your.pdf
    • http://www.gorillawalker.com/second-world-war-in-100-objects.pdf
    • http://www.gorillawalker.com/weight-loss-the-complete-mind-and-body-approach-achieve-your.pdf
    • http://www.gorillawalker.com/kinesiolog-a-tu-cuerpo-responde-spanish-edition.pdf
    • http://www.gorillawalker.com/the-church-of-the-word-a-comparative-study-of-word.pdf
    • http://www.gorillawalker.com/histoire-de-la-compagnie-de-jesus-en-france-des-origines.pdf
    • http://www.gorillawalker.com/1997-international-conference-on-shape-modeling-and-applications-smi.pdf
    • http://www.gorillawalker.com/women-on-the-front-lines.pdf
    • http://www.helpandmanual.com
    • http://www.gorillawalker.com/study-guide-for-
    • 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#
    +1 more URL(s)

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