Malicious PDF — malware analysis report

Static analysis result for SHA-256 1917e6242d9a768c…

MALICIOUS

PDF

108.4 KB Created: 2020-11-25 01:16:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-22
MD5: 456afcdf5008c020d3b6b1de0a5546ca SHA-1: 0e832ae232fe368f987b6b79a5ab12b4cb75cc84 SHA-256: 1917e6242d9a768cd9698cb2b0931d69772201e74ed4b007a15b643301c407c0
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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://traffine.ru/wb?keyword=hematology%20guidelines%20sickle%20cell In PDF document text
    • https://cdn-cms.f-static.net/uploads/4425784/normal_5f9762f89f6d5.pdfIn PDF document text
    • https://bizumoku.weebly.com/uploads/1/3/2/6/132681494/ruloxise.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4502336/normal_5fabb1ac9f41a.pdfIn PDF document text
    • https://mogidudurunupiz.weebly.com/uploads/1/3/2/6/132695636/702920.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379720/normal_5f9286f235967.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366321/normal_5f87341e3f636.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383460/normal_5fa2eb8a9bc81.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403128/normal_5fb548e279519.pdfIn PDF document text
    • https://tipefejiri.weebly.com/uploads/1/3/0/9/130969755/burupojakakafejofe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488566/normal_5fb575d2453ed.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/dukajevo/absolute_value_inequalities_test.pdfIn PDF document text
    • https://s3.amazonaws.com/bezegoluzose/6598015418.pdfIn PDF document text
    • https://s3.amazonaws.com/zufaxepixiguxax/98272972838.pdfIn PDF document text
    • https://s3.amazonaws.com/kezemiradigu/nikola_corporation_news.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_off00016b1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16B1A 5288 bytes
SHA-256: 41ec009cb2f708eb51ba6321d28ca831484483793597533bf3eda6a776f0be4b
font_01_sfnt_off00017d0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17D0B 12252 bytes
SHA-256: 0fd10969347c2fb9a78b4fc243735c53ec29bbeb4b99c3a341197ac7cfdda8ef

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