Malicious PDF — malware analysis report

Static analysis result for SHA-256 819c5c0ade5741a1…

MALICIOUS

PDF

41.7 KB Created: 2018-12-08 04:12:56 +03:00 Authoring application: Adobe Acrobat 7.0 (via Adobe Acrobat 7.0 Image Conversion Plug-in)
MD5: 4d861d233b084d95f27e45971e1b47fe SHA-1: 2054b3c59f6baa516e45c44e00c1aca9c21dd232 SHA-256: 819c5c0ade5741a1328b6b26a79c8fe4770bf86b19e9f7ecc71f77d9cd5f425e
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded links 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 link distribution.

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/self-organizing-map-formation-foundations-of-neural-computation-computational-neuroscience.pdf
    • http://www.gorillawalker.com/the-secret-speech.pdf
    • http://www.gorillawalker.com/personal-injury-schedules-calculating-damages-2nd-edition.pdf
    • http://www.gorillawalker.com/spark-how-creativity-works.pdf
    • http://www.gorillawalker.com/backstage-to-millions.pdf
    • http://www.gorillawalker.com/mathematics-for-elementary-teachers-plus-activities-manual-2nd-edition.pdf
    • http://www.gorillawalker.com/billionaire-series-billionaire-romance-box-set-billionaires-obsession-book-1.pdf
    • http://www.gorillawalker.com/the-brendan-voyage.pdf
    • http://www.gorillawalker.com/hot-for-doctor-doctor-s-fobidden-desires.pdf
    • http://www.gorillawalker.com/easy-bicycle-maintenance.pdf
    • http://www.gorillawalker.com/scream-louder-through-hell-and-healing-with-an-incest-survivor.pdf
    • http://www.gorillawalker.com/magnetohydrodynamic-energy-for-electric-power-generation-energy-technology-review.pdf
    • http://www.gorillawalker.com/property-law-rules-policies-and-practices-looseleaf-version.pdf
    • http://www.gorillawalker.com/who-was-ronald-reagan.pdf
    • http://www.gorillawalker.com/irritable-bowel-syndrome-fast-facts.pdf
    • http://www.gorillawalker.com/e-a-novel.pdf
    • http://www.gorillawalker.com/the-tall-book-of-make-believe.pdf
    • http://www.gorillawalker.com/yonder-a-place-in-montana-adventure-press.pdf
    • http://www.gorillawalker.com/the-codex-nuttall-dover-fine-art-history-of-art.pdf
    • http://www.gorillawalker.com/illustrating-children-s-picture-books-tutorials-case-studies-know-how.pdf
    • http://www.gorillawalker.com/london-eyewitness-travel-guides.pdf
    • http://www.gorillawalker.com/priscilla-alden-and-the-story-of-the-first-thanksgiving-let.pdf
    • http://www.gorillawalker.com/super-sticker-fun-on-the-farm-over-80-re-usable.pdf
    • http://www.gorillawalker.com/magic-realist-cinema-in-east-central-europe-traditions-in-world.pdf
    • http://www.gorillawalker.com/ska-an-oral-history.pdf
    • http://www.gorillawalker.com/lake-boats-the-enduring-vessels-of-the-great-lakes.pdf
    • http://www.gorillawalker.com/the-road-out-of-hell-sanford-clark-and-the-true.pdf
    • http://www.gorillawalker.com/sun-and-the-drum-african-roots-in-jamaican-folk-tradition.pdf
    • http://www.gorillawalker.com/out-of-darkness-megabook-out-of-darkness-1-3-amish.pdf
    • http://www.gorillawalker.com/jimmy-bench-press.pdf
    • http://www.gorillawalker.com/the-type-vii-u-boat-anatomy-of-the-ship.pdf
    • http://www.gorillawalker.com/food-in-war-time-vegetarian-recipes-for-100-inexpensive-dishes.pdf
    • http://www.gorillawalker.com/acoustic-emission-and-critical-phenomena-from-structural-mechanics-to-geophysics.pdf
    • http://www.gorillawalker.com/annual-review-of-nano-research.pdf
    • http://www.gorillawalker.com/the-killing-dance-anita-blake-vampire-hunter-book-6.pdf
    • http://www.gorillawalker.com/bounty-hunter.pdf
    • http://www.gorillawalker.com/medieval-punishment-and-torture-the-library-of-medieval-times.pdf
    • http://www.gorillawalker.com/100-questions-and-answers-about-hispanics-and-latinos.pdf
    • http://www.gorillawalker.com/booknotes-america-s-finest-authors-on-reading-writing-and-the.pdf
    • http://www.gorillawalker.com/great-verdi-arias-for-soprano-voice-and-piano-dover-song.pdf
    • http://www.gorillawalker.com/billionaire-series-billionaire-romance-box-set-billionaires-obsession-book-1.pd
    • 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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