Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3e68cbf7f4421ea…

MALICIOUS

PDF

69.3 KB Created: 2021-01-06 20:10:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-21
MD5: cd5dca848165d7e43f18490748e7aad7 SHA-1: b7ad237e8c523e57faf38455a837290a334ccfa5 SHA-256: d3e68cbf7f4421eae054541e3e62b703d460e2a01c42078bcc2ccb4b4ecc8417
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://cctraff.ru/wb?keyword=racing%20race%20cards In PDF document text
    • https://static.s123-cdn-static.com/uploads/4422638/normal_5ff3001be443c.pdfIn PDF document text
    • https://vuwawirekexaz.weebly.com/uploads/1/3/0/9/130969699/rijenatipepodexix.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406782/normal_5f9f0ae110c9e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392462/normal_5fd78ae29aa44.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408340/normal_5fcbf3f314fa9.pdfIn PDF document text
    • https://kobuzonoge.weebly.com/uploads/1/3/1/4/131452837/a68ad50ac5e0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4530070/normal_5ff15344939a3.pdfIn PDF document text
    • https://fevuxutub.weebly.com/uploads/1/3/4/1/134131759/78b3cd7dd648db0.pdfIn PDF document text
    • https://tidivexosito.weebly.com/uploads/1/3/4/3/134316292/tagulekalejizimobaze.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467912/normal_5fcb589e1f7e4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470961/normal_5fcf66cfec147.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365584/normal_5f87021e13423.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/kefefetafij/64294699634.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_off0000d319.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD319 5084 bytes
SHA-256: 954b132b16adf02953b746a780b72dc44079e66870dc5eb05f3d96d7748d4877
font_01_sfnt_off0000e471.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE471 10776 bytes
SHA-256: fc37f85bcfbc3029a2907951a4da1635a0bc8db80345540d646fe065c3efaa47

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