Malicious PDF — malware analysis report

Static analysis result for SHA-256 624d87f74294252f…

MALICIOUS

PDF

71.3 KB Created: 2020-11-22 23:55:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-29
MD5: e8cf6f37b79743e31a2f52f03f45bd0d SHA-1: cd9d8f8ceff201b4bbcc516a819c031df2a111fb SHA-256: 624d87f74294252fdc7dc4cd41368bb66d200b5110027419a123425417f3b727
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://gettraff.ru/wb?keyword=pediatric%20parenteral%20nutrition%20guidelines%20aspen In PDF document text
    • https://cdn-cms.f-static.net/uploads/4457620/normal_5fad378b5206a.pdfIn PDF document text
    • https://gupupekulumo.weebly.com/uploads/1/3/4/1/134108922/podop.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410956/normal_5f95ded59052b.pdfIn PDF document text
    • https://firedisivimi.weebly.com/uploads/1/3/0/9/130969818/0fabf7082375.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366340/normal_5f996fe60c9f6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366306/normal_5f91dce70e36c.pdfIn PDF document text
    • https://jawowigo.weebly.com/uploads/1/3/0/7/130774982/fufuvik-mivojakulapuzon.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388178/normal_5f9932a6c8fda.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370533/normal_5f8b9f582e19d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366321/normal_5f9fd5079e335.pdfIn PDF document text
    • https://kirenokasanav.weebly.com/uploads/1/3/4/4/134445236/f1181bf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374953/normal_5f9dac6844154.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471985/normal_5fa6c2f0ae8d6.pdfIn PDF document text
    • https://fulafokowezoje.weebly.com/uploads/1/3/4/3/134384829/gupamava_tuzurebet.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368752/normal_5f999c18c3bcb.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/dfefd481-393c-4645-8965-2884462c45e2/51990121721.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d95f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD95F 5244 bytes
SHA-256: 1165ba29e29f263bbef6c4f4222b0d63dece79854539db38a52946444c36282a
font_01_sfnt_off0000eb3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB3F 11888 bytes
SHA-256: 97b0d3dbab2c2c8de66ac18a51aea1169f758f44d97c681babf875867cf96ab7

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