Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb262994381da971…

MALICIOUS

PDF

42.8 KB Created: 2018-12-15 20:00:43 +03:00 Authoring application: Microsoft Word (via Acrobat PDFWriter 3.0f1r8 for Power Macintosh)
MD5: dccf9734ceaac8f3b15d4ad99b9d476f SHA-1: f1dfd038c002e13162662dd5c25c851378ab1265 SHA-256: fb262994381da97162d14e5c13f8a8bbcd1dfac91854ff34a5eca4eb03739d91
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier as malicious. A critical heuristic identified a large number of embedded external links, suggesting a link farm or distribution mechanism. The document body contains obfuscated text and embedded URLs pointing to various PDF files, likely to serve as lures or to manipulate search engine results.

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/the-airsoft-bible-book-of-comm.pdf
    • http://www.gorillawalker.com/chumbara-french-folk-song-for-two-part-chorus-and-piano.pdf
    • http://www.gorillawalker.com/lifelong-looper-the-story-of-a-caddie-legend.pdf
    • http://www.gorillawalker.com/life-in-dixie-during-the-war-civil-war-georgia.pdf
    • http://www.gorillawalker.com/from-rebellion-to-redemption-a-journey-through-the-great-themes.pdf
    • http://www.gorillawalker.com/loving-mr-spock.pdf
    • http://www.gorillawalker.com/the-candy-striper.pdf
    • http://www.gorillawalker.com/muscular-origins-insertions-quickstudy-academic.pdf
    • http://www.gorillawalker.com/london-college-of-music-handbook-for-certificate-examinations-in-electric.pdf
    • http://www.gorillawalker.com/scanning-electron-microscopy-for-the-life-sciences-advances-in-microscopy.pdf
    • http://www.gorillawalker.com/lappi-finnish-edition.pdf
    • http://www.gorillawalker.com/fuzzy-set-theory-foundations-and-applications.pdf
    • http://www.gorillawalker.com/levinas-totality-and-infinity-a-reader-s-guide-reader-s.pdf
    • http://www.gorillawalker.com/irrational-exuberance.pdf
    • http://www.gorillawalker.com/molecular-cellular-biology-of-the-yeast-saccharomyces-vol-3-cell.pdf
    • http://www.gorillawalker.com/report-of-the-cruise-of-the-u-s-revenue-cutter.pdf
    • http://www.gorillawalker.com/a-narrative-of-the-mission-of-the-united-brethren-among.pdf
    • http://www.gorillawalker.com/last-of-the-summer-wine-from-the-director-s-chair.pdf
    • http://www.gorillawalker.com/big-top-otto-elephants-never-forget.pdf
    • http://www.gorillawalker.com/the-unknown-eastern-front-the-wehrmacht-and-hitler-s-foreign.pdf
    • http://www.gorillawalker.com/i-bipolar-a-southern-man-s-memoir-kindle-edition.pdf
    • http://www.gorillawalker.com/modelling-the-panther-tank-modelling-guides.pdf
    • http://www.gorillawalker.com/green-thumb-guides.pdf
    • http://www.gorillawalker.com/assassin-s-quest-the-farseer-trilogy-book-3-unabridged-audible.pdf
    • http://www.gorillawalker.com/magicae-terra-season-one-kindle-edition.pdf
    • http://www.gorillawalker.com/hong-kong-tourist-association-official-guidebook.pdf
    • http://www.gorillawalker.com/halo-5-2016-mini-poster-calendar.pdf
    • http://www.gorillawalker.com/scenes-from-village-life.pdf
    • http://www.gorillawalker.com/avatar-the-last-airbender-the-promise-part-1.pdf
    • http://www.gorillawalker.com/flash-photography-beginner-tips-learn-photo-lighting-flash-for-cameras.pdf
    • http://www.gorillawalker.com/holy-haikus.pdf
    • http://www.gorillawalker.com/social-complexity-and-the-development-of-towns-in-iberia-ba.pdf
    • http://www.gorillawalker.com/n-t-c-s-american-idioms-dictionary-english.pdf
    • http://www.gorillawalker.com/perception-of-the-vedas-indira-gandhi-national-centre-for-the.pdf
    • http://www.gorillawalker.com/tiger-tiger-a-memoir.pdf
    • http://www.gorillawalker.com/vogue-on-hubert-de-givenchy.pdf
    • http://www.gorillawalker.com/ward-based-critical-care-a-guide-for-health-professionals.pdf
    • http://www.gorillawalker.com/edith-stein-symposium-teresian-culture-carmelite-studies-iv-v-4.pdf
    • http://www.gorillawalker.com/explorer-s-guide-west-texas-a-great-destination-explorer-s.pdf
    • http://www.gorillawalker.com/cinderella-for-tablet-devices-usborne-first-reading-level-four.pdf
    • http://www.gorill
    • 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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