Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c1d7cf21e2323cc…

MALICIOUS

PDF

33.3 KB Created: 2020-01-17 19:19:14 +03:00 Authoring application: Adobe Acrobat Pro 11.0.18 (via Adobe PDF Library 11.0)
MD5: 761ab4fa77118c0af55424a534bde0e4 SHA-1: 3b3cefa4ba6e245937d4ff5394b05f02d2e701b1 SHA-256: 6c1d7cf21e2323cc250860e9e8816a1b33d61214052380876d0add0dd135c860
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. While the document body is heavily obfuscated and unreadable, the presence of numerous links to external PDFs hosted on the same domain suggests an attempt to manipulate search engine results or redirect users to potentially malicious content. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8529

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/psychoanalytic-perspectives-on-women.pdf
    • http://www.gorillawalker.com/real-science-4-kids-biology-level-1-laboratory-worksheets.pdf
    • http://www.gorillawalker.com/gender-and-emotion-social-psychological-perspectives-studies-in-emotion-and.pdf
    • http://www.gorillawalker.com/delta-s-key-to-the-toefl-ibt-seven-practice-tests.pdf
    • http://www.gorillawalker.com/introduction-to-nuclear-radiation-detectors-laboratory-instrumentation-and-techniques.pdf
    • http://www.gorillawalker.com/zhong-wai-wei-xing-xiao-shuo-jian-shang-ci-dian.pdf
    • http://www.gorillawalker.com/don-t-tempt-me-georgian.pdf
    • http://www.gorillawalker.com/advanced-metaprogramming-in-classic-c.pdf
    • http://www.gorillawalker.com/down-by-the-jetty-the-dr-feelgood-story.pdf
    • http://www.gorillawalker.com/pathological-lying-accusation-and-swindling-a-study-in-forensic-psychology.pdf
    • http://www.gorillawalker.com/inside-charlotte-the-promiscuous-wanderings-of-charlotte-somerset-book-1.pdf
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    • http://www.gorillawalker.com/les-femmes-d-amis-french-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/why-normandy-was-won-operation-bagration-and-the-war-in.pdf
    • http://www.gorillawalker.com/the-british-soldier-in-the-peninsular-war-encounters-with-spain.pdf
    • http://www.gorillawalker.com/the-digital-divide-library-edition-writings-for-and-against-facebook.pdf
    • http://www.gorillawalker.com/san-juan-adventure-guide-hiking-biking-and-skiing-in-southwestern.pdf
    • http://www.gorillawalker.com/perry-mason-and-the-case-of-the-sulky-girl-a.pdf
    • http://www.gorillawalker.com/financial-statement-analysis-an-integrated-approach.pdf
    • http://www.gorillawalker.com/olympus-at-war-pegasus.pdf
    • http://www.gorillawalker.com/european-navies-and-the-conduct-of-war.pdf
    • http://www.gorillawalker.com/book-selection-and-censorship-a-study-of-school-and-public.pdf
    • http://www.gorillawalker.com/fix-it-and-forget-it-5-ingredient-favorites-comforting-slow.pdf
    • http://www.gorillawalker.com/legal-remedies-for-third-party-sexual-harassment-in-the-united.pdf
    • http://www.gorillawalker.com/2013-calendar-lighthouses-2013-kitchen-towel.pdf
    • http://www.gorillawalker.com/esquisses-senegalaises-french-edition.pdf
    • http://www.gorillawalker.com/investigations-on-the-theory-of-the-brownian-movement.pdf
    • http://www.gorillawalker.com/cardiothoracic-surgery-vademecum.pdf
    • http://www.gorillawalker.com/what-demons-can-do-to-saints.pdf
    • http://www.gorillawalker.com/dawson-s-petting-zoo.pdf
    • http://www.gorillawalker.com/critical-care-obstetrics.pdf
    • http://www.gorillawalker.com/invest-like-a-dealmaker-secrets-from-a-former-banking-insider.pdf
    • http://www.gorillawalker.com/piano-concerto-no-1-theme-from-the-op-23-accordion.pdf
    • http://www.gorillawalker.com/explorer-s-guide-maine-sixteenth-edition-explorer-s-complete.pdf
    • http://www.gorillawalker.com/the-eton-roundels-eton-college-ms-177-figurae-bibliorum-a.pdf
    • http://www.gorillawalker.com/liability-insurance-lloyd-s-insurance-law-library.pdf
    • http://www.gorillawalker.com/5-minutes-with-christ-spiritual-nourishment-for-busy-teachers.pdf
    • http://www.gorillawalker.com/the-god-who-comes-dionysian-mysteries-revisited.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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