Malicious PDF — malware analysis report

Static analysis result for SHA-256 acc1e5e249868a4f…

MALICIOUS

PDF

43.0 KB Created: 2018-12-14 20:47:03 +03:00 Authoring application: Acrobat 5.0 Image Conversion Plug-in for Windows
MD5: 155a078b54232ed0461dfa1ef08f685e SHA-1: 86793c63855682e16398647b85fe8d66451f3d04 SHA-256: acc1e5e249868a4fb76ed5e6edc8e990a7bec3b5dcd1ce6444f469f1b0e4c331
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample, and the document body was heavily obfuscated, preventing a deeper analysis of its specific intent beyond the link farm.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8872

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/when-pain-is-the-doorway-awakening-in-the-most-difficult.pdf
    • http://www.gorillawalker.com/the-outlaw-state-saddam-hussein-s-quest-for-power-and.pdf
    • http://www.gorillawalker.com/life-in-hawaii-by-rosalie-prussing-2014-deluxe-calendar.pdf
    • http://www.gorillawalker.com/buck-mcnair-the-story-of-group-captain-r-w-mcnair.pdf
    • http://www.gorillawalker.com/my-mommy-s-water-balloon.pdf
    • http://www.gorillawalker.com/netter-s-obstetrics-gynecology-women-s-health.pdf
    • http://www.gorillawalker.com/cranial-osteopathy-for-infants-children-and-adolescents-a-practical-handbook.pdf
    • http://www.gorillawalker.com/the-tomes-of-delphi-algorithms-and-data-structures-kindle-edition.pdf
    • http://www.gorillawalker.com/thomas-mcknight-windows-on-paradise.pdf
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    • http://www.gorillawalker.com/stochastic-geometry-and-wireless-networks-part-i-theory-foundations-and.pdf
    • http://www.gorillawalker.com/law-enforcement-officers-quick-reference-statute-guide-north-carolina-2009.pdf
    • http://www.gorillawalker.com/the-evolving-coast-scientific-american-library.pdf
    • http://www.gorillawalker.com/endre-elsker-saga-book-2-kindle-edition.pdf
    • http://www.gorillawalker.com/blood-of-christ-in-the-theology-of-william-tyndale-the.pdf
    • http://www.gorillawalker.com/automatic-transmission-and-transaxle-tasksheet-manual-for-natef-proficiency.pdf
    • http://www.gorillawalker.com/sea-turtle-young-explorer-a-day-in-the-life-sea.pdf
    • http://www.gorillawalker.com/handbook-of-retailing.pdf
    • http://www.gorillawalker.com/everyday-christian-male-s-guide-to-modern-dating.pdf
    • http://www.gorillawalker.com/first-on-the-moon-picture-book.pdf
    • http://www.gorillawalker.com/introduction-to-autocad-2005-2d-and-3d-design.pdf
    • http://www.gorillawalker.com/jersey-lovers.pdf
    • http://www.gorillawalker.com/the-state-parks-of-arizona.pdf
    • http://www.gorillawalker.com/breast-cancer-cover-up-buried-treatments-that-are-wiping-out.pdf
    • http://www.gorillawalker.com/everything-the-bible-says-about-angels-and-demons-what-do.pdf
    • http://www.gorillawalker.com/la-p-richole-paraphrase-tuba-part-qty-4-a7899.pdf
    • http://www.gorillawalker.com/the-official-star-trek-2016-square-calendar.pdf
    • http://www.gorillawalker.com/fotografie-als-botschaft-german-edition.pdf
    • http://www.gorillawalker.com/korean-democracy-in-transition-a-rational-blueprint-for-developing-societies.pdf
    • http://www.gorillawalker.com/universal-s-fundamental-method-for-the-cornet-or-trumpet-a.pdf
    • http://www.gorillawalker.com/the-barter.pdf
    • http://www.gorillawalker.com/airframe-test-guide-2016-the-fast-track-to-study-for.pdf
    • http://www.gorillawalker.com/encyclopedia-of-quantitative-finance-4-volume-set.pdf
    • http://www.gorillawalker.com/bonds-of-resolve-cadicle-3-an-epic-space-opera-series.pdf
    • http://www.gorillawalker.com/animals-the.pdf
    • http://www.gorillawalker.com/why-i-married-a-passable-tranny.pdf
    • http://www.gorillawalker.com/aurora-an-isaac-asimov-robot-mystery-isaac-asimov-s-robot.pdf
    • http://www.gorillawalker.com/algorithmics-of-matching-under-preferences-series-on-theoretical-computer-science.pdf
    • http://www.gorillawalker.com/halley-s-bible-handbook-deluxe-edition-completely-revised-and-expanded.pdf
    • http://www.gorillawalker.com/count-based-progressive-betting-strategy-for-blackjack-kindle-edition.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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