Malicious PDF — malware analysis report

Static analysis result for SHA-256 f488ecebbc4aed6c…

MALICIOUS

PDF

43.6 KB Created: 2018-11-23 20:29:58 +03:00 Authoring application: PScript5.dll Version 5.2.2 (via iText 2.1.7 by 1T3XT)
MD5: c92c895e94326f49ba15a31ea3f99aa6 SHA-1: b3d6b770ad66ca6c5f3d6c10fb9d9916f5a04968 SHA-256: f488ecebbc4aed6c2020a1fedb59c5715c1aa9530ab4824675dd7c46a35c75a1
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Phishing: Spearphishing Attachment T1059.001 Command and Scripting Interpreter: PowerShell

The PDF file was flagged by a machine learning classifier and contains a large number of embedded links to external PDF files, indicating a potential SEO manipulation or link farm tactic. While no scripts were extracted, the sheer volume of links suggests an attempt to drive traffic or distribute further malicious content. The attack pattern is likely related to SEO poisoning or a form of indirect phishing through link manipulation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8452

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/spanish-short-stories-1-cuentos-hisp-nicos-1-parallel-text.pdf
    • http://www.gorillawalker.com/operative-techniques-in-spine-surgery.pdf
    • http://www.gorillawalker.com/applications-proceedings-of-the-11th-triennial-world-congress-of-the.pdf
    • http://www.gorillawalker.com/the-death-penalty-in-america-current-controversies.pdf
    • http://www.gorillawalker.com/bougainvillea-house.pdf
    • http://www.gorillawalker.com/life-in-death-kindle-edition.pdf
    • http://www.gorillawalker.com/the-aegean-bronze-age-cambridge-world-archaeology.pdf
    • http://www.gorillawalker.com/bound-shibari-style-impressions.pdf
    • http://www.gorillawalker.com/the-cross-god-s-way-of-salvation.pdf
    • http://www.gorillawalker.com/four-christmas-musicals-volume-5.pdf
    • http://www.gorillawalker.com/fashion-illustration-1930-to-1970.pdf
    • http://www.gorillawalker.com/dying-french-literature-series.pdf
    • http://www.gorillawalker.com/kv-1-2-heavy-tanks-1939-45-new-vanguard.pdf
    • http://www.gorillawalker.com/nurse-to-nurse-ecg-interpretation.pdf
    • http://www.gorillawalker.com/practical-problem-solving-in-hplc.pdf
    • http://www.gorillawalker.com/comparative-politics-today-a-theoretical-framework-5th-edition.pdf
    • http://www.gorillawalker.com/chronicles-of-the-unlovable-matters-of-the-heart-volume-1.pdf
    • http://www.gorillawalker.com/good-math-a-geek-s-guide-to-the-beauty-of.pdf
    • http://www.gorillawalker.com/chanel-an-intimate-life.pdf
    • http://www.gorillawalker.com/delete-the-virtue-of-forgetting-in-the-digital-age-unabridged.pdf
    • http://www.gorillawalker.com/james-bond-trigger-mortis-der-finger-gottes-mit-originalmaterial-von.pdf
    • http://www.gorillawalker.com/polynomial-identities-and-combinatorial-methods-lecture-notes-in-pure-and.pdf
    • http://www.gorillawalker.com/making-room-for-the-virtual-office-an-article-from-association.pdf
    • http://www.gorillawalker.com/one-moment-in-time-moment-of-truth.pdf
    • http://www.gorillawalker.com/pasos-spanish-practical-grammar.pdf
    • http://www.gorillawalker.com/the-bloodstone-lands-ad-d-2nd-ed-fantasy-roleplaying-forgotten.pdf
    • http://www.gorillawalker.com/the-perfect-surrogate-interracial-pregnancy-erotica.pdf
    • http://www.gorillawalker.com/active-retirement-for-affluent-workaholics-planning-for-the-life-you.pdf
    • http://www.gorillawalker.com/it-s-simply-serendipity-kindle-edition.pdf
    • http://www.gorillawalker.com/prayers-to-expel-the-evil-spirits-paperback.pdf
    • http://www.gorillawalker.com/chichen-itza-the-history-and-mystery-of-the-maya-s.pdf
    • http://www.gorillawalker.com/planning-and-scheduling-using-microsoft-project-2010-updated-2013-including.pdf
    • http://www.gorillawalker.com/bible-readers-and-lay-writers-in-early-modern-england-gender.pdf
    • http://www.gorillawalker.com/social-work-in-canada-an-introduction.pdf
    • http://www.gorillawalker.com/lewis-clark-and-little-missouri-state-parks-includes-sully-creek.pdf
    • http://www.gorillawalker.com/1001-designs-for-whittling-woodcarving-with-over-1800-illustrations.pdf
    • http://www.gorillawalker.com/intermediate-algebra-custom-bcc-6th-edition-intermediate-algebra-6th-edition.pdf
    • http://www.gorillawalker.com/shapeshifting-into-higher-consciousness-heal-and-transform-yourself-and-our.pdf
    • http://www.gorillawalker.com/el-libro-de-etiqueta-de-lady-lupina-lady-lupin-s.pdf
    • http://www.gorillawalker.com/the-grammar-dimension-in-instructed-second-language-learning-advances-in.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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