Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ed8060f7e26cca5…

MALICIOUS

PDF

39.2 KB Created: 2018-11-26 20:12:27 +03:00 Authoring application: TeX (via pdfTeX-0.14f)
MD5: ee10c4d4211d778bd458ccdd09593395 SHA-1: 673f859e3ddc3cfac58eabd1318b42d59963bd0a SHA-256: 1ed8060f7e26cca512f7b080be326b10154ae1d63a29b72901095d5ad43c4c40
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded links 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, and the document body was unreadable, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8901

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/street-sex-work-and-canadian-cities-resisting-a-dangerous-order.pdf
    • http://www.gorillawalker.com/eternal-victory-triumphal-rulership-in-late-antiquity-byzantium-and-the.pdf
    • http://www.gorillawalker.com/studies-in-contemporary-indian-english-short-story-a-collection-of.pdf
    • http://www.gorillawalker.com/the-wise-man-from-the-west.pdf
    • http://www.gorillawalker.com/c-programming-professional-made-easy-expert-c-programming-language-success.pdf
    • http://www.gorillawalker.com/the-methodist-worship-book-standard-edition.pdf
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    • http://www.gorillawalker.com/a-history-of-western-society-chapters-1-31-6th-edition.pdf
    • http://www.gorillawalker.com/sleeping-with-beauty-harlequin-comics.pdf
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    • http://www.gorillawalker.com/leavenworth-rock.pdf
    • http://www.gorillawalker.com/birds-of-passage-migrant-labor-and-industrial-societies.pdf
    • http://www.gorillawalker.com/3d-theater-oceans.pdf
    • http://www.gorillawalker.com/origin-of-ethnography-in-japan.pdf
    • http://www.gorillawalker.com/memories-hardcover-collector-s-edition.pdf
    • http://www.gorillawalker.com/the-abyss-surrounds-us.pdf
    • http://www.gorillawalker.com/masks-the-blood-dynasty-chronicles-part-3-kindle-edition.pdf
    • http://www.gorillawalker.com/by-arthur-agatston-the-south-beach-diet-cookbook-1st-edition.pdf
    • http://www.gorillawalker.com/stitt-s-diagnosis-prevention-and-treatment-of-tropical-diseases.pdf
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    • http://www.gorillawalker.com/these-are-two-covenants-reconsidering-paul-on-the-mosaic-law.pdf
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    • http://www.gorillawalker.com/c-programming-profession
    • 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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