Malicious PDF — malware analysis report

Static analysis result for SHA-256 425f9557271a2989…

MALICIOUS

PDF

74.9 KB Created: 2020-11-18 23:11:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-15
MD5: 5f2d487d3c7a96cf5715ffbcaa726d79 SHA-1: 8c2560f3cd78a64a85ad4ea49e903202bfdbafb0 SHA-256: 425f9557271a2989e63e604bdbc51a2d267e11f33e24099b207a1206d3004b13
76 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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 https://trafficel.ru/123?utm_term=trumpet+mouthpieces+sizes PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4452148/normal_5fa31c9269c61.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392872/normal_5f8ee3ae8a979.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/tometubufimopim/auto_gg_minecraft_mod.pdfIn PDF document text
    • https://s3.amazonaws.com/fisulefajow/78672197824.pdfIn PDF document text
    • https://s3.amazonaws.com/vexeliku/bmw_x2_price_list_uk.pdfIn PDF document text
    • https://s3.amazonaws.com/wonoti/seaworld_san_antonio_map.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fce9e9f3-1cee-4dcc-af54-6815694992c4/pebilijit.pdfIn PDF document text
    • https://s3.amazonaws.com/dutimajizowa/xogujavokudidovajo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fdfe7353-df1e-455f-8a44-e24c22bf498b/trumpet_valve_oil_recipe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a536e390-9ab6-4fcf-8012-8e1c3246d325/xilugozupuw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7b65f861-e287-41bc-be9f-ec5339af4790/counter_strike_extreme_v6_indir_tami.pdfIn PDF document text
    • https://s3.amazonaws.com/mujevubutukoxu/writ_of_attachment_vs_writ_of_execution.pdfIn PDF document text
    • https://s3.amazonaws.com/nigimul/rinumisosifosaj.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ea8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA8C 4928 bytes
SHA-256: 8a1b0c23bfaa03f5b29637da5131023bddbd9d2811f500f028c2d12860d68ad2
font_01_sfnt_off0000fb31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB31 10544 bytes
SHA-256: 809631a30b6b917313ef1ef8b003eca09a9d8890f7cbe5cf2e11e6c4e3470ba0