Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4f2471cfdf693c7…

MALICIOUS

PDF

41.4 KB Created: 2019-02-13 20:13:02 +03:00 Authoring application: dvips(k) 5.96 Copyright 2005 Radical Eye Software (via GPL Ghostscript 8.57)
MD5: e406aaa5fe768c6cc54cd03984c77dba SHA-1: a03517d5c30ce934f48a37c4709fbc9ca720db5d SHA-256: a4f2471cfdf693c759c45c10b1a451d80908a0c8154e5da6050e150d1d558a8a
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged by a machine learning classifier and contains a large number of external links, indicating a potential SEO manipulation or redirection scheme. The primary heuristic identified a 'PDF_SEO_LINK_FARM' with 32 external links, suggesting the document's purpose is to distribute these links. No scripts were extracted from this sample, and the document body was heavily obfuscated, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9181

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/debating-conversion-in-hinduism-and-christianity-routledge-hindu-studies-series.pdf
    • http://www.gorillawalker.com/the-third-intermediate-period-in-egypt-1100-650bc-egyptology.pdf
    • http://www.gorillawalker.com/theory-of-magnetic-recording.pdf
    • http://www.gorillawalker.com/access-los-angeles-10th-edition.pdf
    • http://www.gorillawalker.com/gott-und-die-g-tzen-forschungen-zur-systematischen-und-okumenischen.pdf
    • http://www.gorillawalker.com/dizionario-dei-telefilm-garzanti-saggi-italian-edition.pdf
    • http://www.gorillawalker.com/teardrop.pdf
    • http://www.gorillawalker.com/i-was-impregnated-by-a-gay-shower-slime.pdf
    • http://www.gorillawalker.com/stop-smoking-naturally-how-to-quit-smoking-permanently-without-side.pdf
    • http://www.gorillawalker.com/sunkissed-digital.pdf
    • http://www.gorillawalker.com/lecture-notes-on-tropical-medicine.pdf
    • http://www.gorillawalker.com/orchard-tractors-motorbooks-international-farm-tractor-color-history.pdf
    • http://www.gorillawalker.com/physics-and-the-art-of-dance-understanding-movement-kindle-edition.pdf
    • http://www.gorillawalker.com/trailblazers-south-africa-s-champions-of-change.pdf
    • http://www.gorillawalker.com/the-oxford-handbook-of-cognitive-psychology-oxford-library-of-psychology.pdf
    • http://www.gorillawalker.com/culture-of-stone-sacred-and-profane-uses-of-stone-among.pdf
    • http://www.gorillawalker.com/eu-public-procurement-law.pdf
    • http://www.gorillawalker.com/the-blessing-cup-40-simple-rites-for-family-prayer-celebrations.pdf
    • http://www.gorillawalker.com/fps-lag-in-offering-genetic-cystic-fibrosis-test-screening-recommended.pdf
    • http://www.gorillawalker.com/introduction-to-polymer-chemistry.pdf
    • http://www.gorillawalker.com/renewal.pdf
    • http://www.gorillawalker.com/replogle-world-atlas.pdf
    • http://www.gorillawalker.com/what-toy-is-that-kindle-edition.pdf
    • http://www.gorillawalker.com/convent-girls.pdf
    • http://www.gorillawalker.com/taken-by-the-club-mc-shifter-paranormal-romance-cyclone-mc.pdf
    • http://www.gorillawalker.com/tumors-of-the-central-nervous-system-volume-1-gliomas-glioblastoma.pdf
    • http://www.gorillawalker.com/checking-in-sitting-pretty.pdf
    • http://www.gorillawalker.com/the-treatment.pdf
    • http://www.gorillawalker.com/amours-secrettes-de-napol-on-buonaparte-v-2-french-edition.pdf
    • http://www.gorillawalker.com/parexel-biopharmaceutical-r-d-statistical-sourcebook-2013-2014.pdf
    • http://www.gorillawalker.com/flowers-for-the-table-creating-the-perfect-table-with-flowers.pdf
    • http://www.gorillawalker.com/the-myth-of-ritual-murder-jews-and-magic-in-reformation.pdf
    • http://www.gorillawalker.com/quick-turnaround-asic-design-in-vhdl-core-based-behavioral-synthesis.pdf
    • http://www.gorillawalker.com/australian-aborignals-womens-s-autobiographies-critical-study.pdf
    • http://www.gorillawalker.com/after-poems-paperback.pdf
    • http://www.gorillawalker.com/modern-real-estate-practice-in-texas.pdf
    • http://www.gorillawalker.com/the-viagra-alternative-the-complete-guide-to-overcoming-erectile-dysfunction.pdf
    • http://www.gorillawalker.com/the-lass-wore-black-scottish-sisters.pdf
    • http://www.gorillawalker.com/jellyfish-blooms-ecological-and-societal-importance-developments-in-hydrobiology.pdf
    • http://www.gorillawalker.com/gothic-in-comics-and-graphic-novels-a-critical-approach.pdf
    • http://www.gorillawalker.com/i-was-impregnated-b
    • 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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