Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1cbe05ab2cd9921…

MALICIOUS

PDF

44.1 KB Created: 2018-11-30 20:34:22 +03:00 Authoring application: LaTeX with hyperref package (via PDFlib PLOP 2.0.0p6 (SunOS)/Acrobat Distiller 5.0.5 (Windows))
MD5: eaa4b1a9d9326bef1dcc2b7e2db55554 SHA-1: 0f57d5841da2c60a0c94fa0a05d97dc29c2e933a SHA-256: f1cbe05ab2cd99218a50dfea6d175603304a0bad8cfdf3b06c3d3a471bb44e93
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links pointing to external PDF files on the domain 'gorillawalker.com'. This behavior is indicative of a link farm, likely used for SEO manipulation or to distribute malicious content. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted, and the document body was heavily obfuscated, preventing further analysis of its specific intent beyond link distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9171

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/interplays-between-dialogical-learning-and-dialogical-self-advances-in-cultural.pdf
    • http://www.gorillawalker.com/thriving-youth-ministry-in-smaller-churches-secrets-for-cultivating-a.pdf
    • http://www.gorillawalker.com/lion-of-the-sun-warrior-of-rome-book-3.pdf
    • http://www.gorillawalker.com/human-haptic-perception-basics-and-applications.pdf
    • http://www.gorillawalker.com/protecting-what-s-ours-indigenous-peoples-and-biodiversity.pdf
    • http://www.gorillawalker.com/ecology-and-liberation-a-new-paradigm-ecology-justice-series.pdf
    • http://www.gorillawalker.com/the-bug-house-family-restaurant.pdf
    • http://www.gorillawalker.com/dakota-wedding-dakota-hearts-volume-6.pdf
    • http://www.gorillawalker.com/integrated-business-continuity-maintaining-resilience-in-uncertain-times.pdf
    • http://www.gorillawalker.com/introduction-to-functional-analysis-with-applications.pdf
    • http://www.gorillawalker.com/the-illustrated-man-harper-perennial-modern-classics-kindle-edition.pdf
    • http://www.gorillawalker.com/the-colony-of-british-honduras-its-resources-and-prospects-with.pdf
    • http://www.gorillawalker.com/depression-the-mood-disease-a-johns-hopkins-press-health-book.pdf
    • http://www.gorillawalker.com/haruka-naru-asa-e-kousen-zuisou-japanese-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/check-six-f-86-ace-hal-fischer-an-interview-china.pdf
    • http://www.gorillawalker.com/touched-with-fire-civil-war-letters-and-diary-of-oliver.pdf
    • http://www.gorillawalker.com/two-spirit-ranch-battle-lines-two-spirits-1-siren-publishing.pdf
    • http://www.gorillawalker.com/hostage-the-incredible-true-story-of-the-kidnapping-of-three.pdf
    • http://www.gorillawalker.com/hebrews-an-exegetical-and-theological-exposition-of-holy-scripture-the.pdf
    • http://www.gorillawalker.com/the-weathermakers.pdf
    • http://www.gorillawalker.com/the-cult-of-happiness-nianhua-art-and-history-in-rural.pdf
    • http://www.gorillawalker.com/the-princess-the-pauper.pdf
    • http://www.gorillawalker.com/consequential-damages-in-comparative-context.pdf
    • http://www.gorillawalker.com/viaje-sagrado-vivir-con-proposito-y-morir-sin-miedo.pdf
    • http://www.gorillawalker.com/silicon-on-insulator-soi-technology-manufacture-and-applications-woodhead-publishing.pdf
    • http://www.gorillawalker.com/balancing-act-south-african-gay-and-lesbian-youth-speak-out.pdf
    • http://www.gorillawalker.com/pharmacodynamics-webster-s-timeline-history-1823-2007.pdf
    • http://www.gorillawalker.com/aepa-professional-knowledge-early-childhood-93-secrets-study-guide-aepa.pdf
    • http://www.gorillawalker.com/wing-t-fullback.pdf
    • http://www.gorillawalker.com/handbook-of-plastics-failure-analysis.pdf
    • http://www.gorillawalker.com/a-journey-through-america-with-the-rolling-stones.pdf
    • http://www.gorillawalker.com/the-cambridge-introduction-to-jacques-derrida-cambridge-introductions-to-literature.pdf
    • http://www.gorillawalker.com/ccna-intro-exam-certification-guide-ccna-self-study-640-821.pdf
    • http://www.gorillawalker.com/bared-to-you-crossfire-book-1-kindle-edition.pdf
    • http://www.gorillawalker.com/tempest-the-piano-vocal-score.pdf
    • http://www.gorillawalker.com/hate-speech-the-history-of-an-american-controversy.pdf
    • http://www.gorillawalker.com/understanding-molecular-simulation-from-algorithms-to-applications.pdf
    • http://www.gorillawalker.com/america-and-the-great-war-1914-1920.pdf
    • http://www.gorillawalker.com/gourmet-by-the-bay-the-virginia-beach-cookbook.pdf
    • http://www.gorillawalker.com/einstein-in-berlin.pdf
    • http://www.gorillawalker.com
    • 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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