Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd75f772a1c82e5a…

MALICIOUS

PDF

72.8 KB Created: 2020-11-12 21:58:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-19
MD5: f1daf6427d6337711fe658f4f315d7b7 SHA-1: bebff709dcd0f9d13b62e05b9d0cd161c09588ff SHA-256: cd75f772a1c82e5a17ee3dc6d69fe465db2b5a2f0c4d43c2557b5b9fd32e2da4
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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://traffnew.ru/123?utm_term=furman+institute+of+running+and+scientific+training PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4367303/normal_5f8cfd80bed73.pdfIn PDF document text
    • https://naxedomabaxa.weebly.com/uploads/1/3/1/6/131606472/zijipudib.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365649/normal_5fa227f114c76.pdfIn PDF document text
    • https://jabiratunibi.weebly.com/uploads/1/3/2/6/132683422/voxasonapazupege.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408462/normal_5fa8670ae95e5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427300/normal_5f981f5936d9a.pdfIn PDF document text
    • https://xodetawutal.weebly.com/uploads/1/3/0/7/130774968/f911779e2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/9eebb988-dbb6-492a-beac-990cbad91d76/52993023566.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c510085-4048-4c66-93c0-54a202cb0e05/narara.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/83701dc8-75dc-4cec-bbd0-53df7abc16c0/lusopajisemunotunavama.pdfIn PDF document text
    • https://s3.amazonaws.com/baxunaf/samasonobevupuw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1ffc5cfb-bcb4-4819-86d1-78329511856c/tutorial_navigation_android.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d51c0601-3650-41b9-94b6-0b8784a191fe/bifiputijezepemekugibol.pdfIn PDF document text
    • https://s3.amazonaws.com/pujirageg/zesixebamazaxonodujiwav.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_off0000e13e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE13E 5264 bytes
SHA-256: f37d50e58e236a113e9505725c82b2cf2234738e8d700da0f3a7164b84f1f6ea
font_01_sfnt_off0000f310.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF310 10360 bytes
SHA-256: b05a69bd061459663737a7ed6043ec42b71678a337317de2433c8746cec00767

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