Malicious PDF — malware analysis report

Static analysis result for SHA-256 3aec067bdef24ec3…

MALICIOUS

PDF

45.1 KB Created: 2019-04-08 04:53:23 +03:00 Authoring application: pdfTeX-1.40.14 (via Revision 5)
MD5: 63656ac02765d843f2ea78ce9152d106 SHA-1: 1d8888d3fea0c7302d3ab0cfe39082bb964218b5 SHA-256: 3aec067bdef24ec3e53d635ea0e81cd76948f4f68c7a6fd323ad5804d96a5fa7
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a heuristic firing for a 'PDF_SEO_LINK_FARM', indicating a large number of external links. The ML classifier also flagged the PDF as malicious. While no scripts were extracted, the sheer volume of links to seemingly unrelated PDF documents suggests an attempt to manipulate search engine results or distribute potentially malicious content through these external links. The document body was unreadable, preventing a more specific analysis of its lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8173

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/aids-free-generation-book-a-guide-to-hiv-aids-prevention.pdf
    • http://www.gorillawalker.com/dictionary-of-real-estate-lending-terms.pdf
    • http://www.gorillawalker.com/ten-macabre-tales-vol-1-ten-macabre-tales-1-kindle.pdf
    • http://www.gorillawalker.com/cal-97-horse-lovers.pdf
    • http://www.gorillawalker.com/chinese-recipes-a-tantalizing-adventure-for-your-taste-buds.pdf
    • http://www.gorillawalker.com/spark-and-burn-buffy-the-vampire-slayer.pdf
    • http://www.gorillawalker.com/crafty-chameleon-african-animal-tales.pdf
    • http://www.gorillawalker.com/counselling-survivors-of-domestic-abuse.pdf
    • http://www.gorillawalker.com/the-mysterious-fluid.pdf
    • http://www.gorillawalker.com/machaut-s-mass-an-introduction.pdf
    • http://www.gorillawalker.com/literary-theory-the-basics.pdf
    • http://www.gorillawalker.com/aat-indirect-tax-fa2015-passcards.pdf
    • http://www.gorillawalker.com/inorganic-reactions-and-methods-the-formation-of-bonds-to-c.pdf
    • http://www.gorillawalker.com/a-complete-course-in-canning-and-related-processes-processing-procedures.pdf
    • http://www.gorillawalker.com/motorcycle-ride-on-the-sea-of-tranquility.pdf
    • http://www.gorillawalker.com/valley-of-the-shadow.pdf
    • http://www.gorillawalker.com/catherine-of-aragon-my-royal-story.pdf
    • http://www.gorillawalker.com/the-oldest-code-of-laws-in-the-world-the-code.pdf
    • http://www.gorillawalker.com/less-web-development-cookbook.pdf
    • http://www.gorillawalker.com/c-mo-hacer-que-tus-hijos-lean-spanish-edition.pdf
    • http://www.gorillawalker.com/papa-piccolo-families-fatherhood-caring-and-nurturing-text-only-children.pdf
    • http://www.gorillawalker.com/ecotourism-a-guide-for-planners-and-managers-vol-2.pdf
    • http://www.gorillawalker.com/choosing-death-l-histoire-du-death-metal-et-du-grindcore.pdf
    • http://www.gorillawalker.com/home-town-news-william-allen-white-and-the-emporia-gazette.pdf
    • http://www.gorillawalker.com/whore-diaries-ii-adventures-in-independent-escorting.pdf
    • http://www.gorillawalker.com/binocular-anomalies-diagnosis-and-vision-therapy-3e.pdf
    • http://www.gorillawalker.com/mastering-autocad-14-for-windows-95-nt.pdf
    • http://www.gorillawalker.com/reproductive-technology-great-medical-discoveries.pdf
    • http://www.gorillawalker.com/award-pronounced-by-his-majesty-king-george-v-as-amiable.pdf
    • http://www.gorillawalker.com/performance-coaching-toolkit.pdf
    • http://www.gorillawalker.com/the-last-great-journey-on-earth-two-thousand-miles-into.pdf
    • http://www.gorillawalker.com/atlas-of-polymers-and-plastics-analysis-volume-3-additives-processing.pdf
    • http://www.gorillawalker.com/whoops-gay-first-time.pdf
    • http://www.gorillawalker.com/irrigation-and-water-power-engineering-print-replica-kindle-edition.pdf
    • http://www.gorillawalker.com/walk-a-hound-lose-a-pound-how-you-your-dog.pdf
    • http://www.gorillawalker.com/approaches-to-teaching-tolkien-s-the-lord-of-the-rings.pdf
    • http://www.gorillawalker.com/petrography-introduction-to-the-study-of-rocks-in-thin-sections.pdf
    • http://www.gorillawalker.com/the-bush-pilots-the-epic-of-flight.pdf
    • http://www.gorillawalker.com/moby-destroyed.pdf
    • http://www.gorillawalker.com/2012-captain-america-the-first-avenger-wall-calendar.pdf
    • http://www.gorillawalker.c
    • 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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