Malicious PDF — malware analysis report

Static analysis result for SHA-256 b90feebf4eaf0070…

MALICIOUS

PDF

44.9 KB Created: 2018-11-30 20:34:57 +03:00 Authoring application: Arbortext Publishing Engine (via PDFlib+PDI 8.0.2p1 (Win32))
MD5: 2db331730df03bde708772afcd9ab5d3 SHA-1: 4d8f04582110f052da53c91b07033d6494a3ea18 SHA-256: b90feebf4eaf0070a1fcbddf4ff6e4fb5fbabcbfb6c51fbcb5a9785b391b01b5
90 Risk Score

Malware Insights

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

The PDF was flagged by a machine learning classifier and contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute malicious content. The primary heuristic indicates a 'PDF_SEO_LINK_FARM' with 32 external links, suggesting the document's purpose is to redirect users to these linked resources. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8812

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/texas-blues-blues-play-along-volume-2.pdf
    • http://www.gorillawalker.com/dreams-of-shreds-and-tatters.pdf
    • http://www.gorillawalker.com/european-integration-processes-of-change-and-the-national-experience-palgrave.pdf
    • http://www.gorillawalker.com/fundamentals-of-practical-aberration-theory-fundamental-knowledge-and-technics-for.pdf
    • http://www.gorillawalker.com/ancient-greek-religion-blackwell-ancient-religions.pdf
    • http://www.gorillawalker.com/hal-leonard-rubank-elementary-methods-cello.pdf
    • http://www.gorillawalker.com/theories-of-psychotherapy-counseling-concepts-and-cases.pdf
    • http://www.gorillawalker.com/teaching-nursing-vol-2-the-art-and-science.pdf
    • http://www.gorillawalker.com/church-turned-inside-out-a-guide-for-designers-refiners-and.pdf
    • http://www.gorillawalker.com/panama-canal-what-it-is-what-it-means.pdf
    • http://www.gorillawalker.com/molecular-biomethods-handbook.pdf
    • http://www.gorillawalker.com/advances-in-electrochemistry-and-electrochemical-engineering-volume-5-electrochemical-engineering.pdf
    • http://www.gorillawalker.com/the-developing-human-clinically-oriented-embryology-8th-edition.pdf
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    • http://www.gorillawalker.com/an-african-popular-literature-a-study-of-onitsha-market-pamphlets.pdf
    • http://www.gorillawalker.com/rad-rides-the-best-bmx-bikes-of-all-time.pdf
    • http://www.gorillawalker.com/greek-myth-plays-10-readers-theater-scripts-based-on-favorite.pdf
    • http://www.gorillawalker.com/pink-big-buddy-biographies.pdf
    • http://www.gorillawalker.com/bidrag-til-den-fyenske-kongeborg-rugaards-dens-laens-og-dens.pdf
    • http://www.gorillawalker.com/how-to-be-really-funny.pdf
    • http://www.gorillawalker.com/the-dominguez-family-a-mexican-american-journey.pdf
    • http://www.gorillawalker.com/measuring-the-economic-importance-of-the-meeting-industry-evaluaci-n.pdf
    • http://www.gorillawalker.com/2010-national-level-proposition-construction-trends-qualification-exam-papers-authority.pdf
    • http://www.gorillawalker.com/ephemeris-or-a-diary-astronomical-astrological-meteorological-for-the-year.pdf
    • http://www.gorillawalker.com/the-hymn-soloist-vocal-solos-medium.pdf
    • http://www.gorillawalker.com/explosive-eighteen-a-stephanie-plum-novel.pdf
    • http://www.gorillawalker.com/traumland-kenia-german-edition.pdf
    • http://www.gorillawalker.com/training-for-warriors-kindle-edition.pdf
    • http://www.gorillawalker.com/variations-on-a-rococo-theme-for-cello-and-orchestra-original.pdf
    • http://www.gorillawalker.com/storia-d-israele-dalle-origini-al-periodo-romano-studi-biblici.pdf
    • http://www.gorillawalker.com/monotremes-and-marsupials-handbook-of-the-mammals-of-the-world.pdf
    • http://www.gorillawalker.com/research-in-psychology-methods-and-design.pdf
    • http://www.gorillawalker.com/codependency-codependency-gone-for-good-how-to-stop-worrying-stop.pdf
    • http://www.gorillawalker.com/8-gedichte-aus-letzte-bl-tter-op-10-zueignung-no.pdf
    • http://www.gorillawalker.com/mgmt-8-with-coursemate-1-term-6-months-printed-access.pdf
    • http://www.gorillawalker.com/germany-as-a-culture-of-remembrance-promises-and-limits-of.pdf
    • http://www.gorillawalker.com/black-and-white-from-snapshots-to-great-shots-dvd.pdf
    • http://www.gorillawalker.com/reading-greek-art.pdf
    • http://www.gorillawalker.com/the-book-of-gad-the-seer-malayalam-translation-malayalam-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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