Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d8460bba78402a3…

MALICIOUS

PDF

69.3 KB Created: 2020-11-24 03:48:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-18
MD5: 3727c3c422b34c791c0a51d7195bd427 SHA-1: 6f64297eed3444b709f3e43bc132f3f8652928c4 SHA-256: 5d8460bba78402a3819a83d123a6a8194278cc650df5e62514f22829852d9c81
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://traffking.ru/strik?utm_term=satran%25C3%25A7+sorular%25C4%25B1+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4367281/normal_5f874ff18f309.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368748/normal_5f8862599a3e1.pdfIn PDF document text
    • https://nonefipuxope.weebly.com/uploads/1/3/4/4/134493331/5353c874.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444869/normal_5fbc661db86e0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427295/normal_5f9c4c1a829e7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453730/normal_5fb2cbd8e96d7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381528/normal_5f9767e9aa811.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414501/normal_5fafa6e0d4c6a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451736/normal_5fa1b26390ca5.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/99220259-bbe3-46fe-81e2-875cc69c48d0/lixurenosebuzabusari.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e2bcc405-253a-49f4-9f19-cb7047d59c33/tekum.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a9e05834-d334-417a-93b3-a74424b3d587/zevuritisitotupenonu.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_off0000d084.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD084 5352 bytes
SHA-256: 83ec506e809aaf80db66442f552bc2ca41fee3a90fb753648ed0ecf20547a1cb
font_01_sfnt_off0000e2c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2C7 11732 bytes
SHA-256: 7ab6923807232c5d7a88222418a9b6343668dbebaa226083440481e14845d7a4

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