Malicious PDF — malware analysis report

Static analysis result for SHA-256 41f690c52098203d…

MALICIOUS

PDF

84.0 KB Created: 2020-12-07 12:43:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 585e91f2e92fbfb81835e25c18df93c4 SHA-1: d32d042b2ce1e5ae6df77def0633f344fa865887 SHA-256: 41f690c52098203d6965a5ac64c7c8ccc5f77e6df589e97d0785d4efa90f14be
194 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link to a known malicious redirector infrastructure, which is designed to lure users to a phishing site. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded URL is part of a phishing lure, likely attempting to trick users into providing sensitive information.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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.
  • 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/aws?utm_term=forensic+report+structure In PDF document text
    • https://cdn-cms.f-static.net/uploads/4375514/normal_5f94f7d48d1f5.pdfIn PDF document text
    • https://s3.amazonaws.com/nuvukivaxiren/insider_s_guide_to_nashville_tn.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464863/normal_5fa494a5accbc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481064/normal_5fa74206b00c2.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe0a953570fb44d1ca64b0/1606290070621/fall_river_housing_authority_220_johnson_st.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc789bb48c1673e559d6e31/t/5fc84ad146ef2e08cbb0d99d/1606961873721/24381251981.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc06b148139af037642cc0d/t/5fc550813f75b16643839f5e/1606766721908/rariwajilekomikeren.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc557d06609fd0ee7af108f/t/5fc7082a1d106d256bb93163/1606879278154/vijizigexoxamitiwo.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf50673f75b16643cbbcbf/1606373479749/nazifusajizugisur.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1b82e11f6a419848b6c75/t/5fc491846457125654cdb616/1606717829328/33079694454.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe1b09e6d49a06bb59b8fb/1606294281919/what_technology_wants_summary.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000104ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104AB 1604 bytes
SHA-256: a90f79d35b855d6e419c922e1c16a7f20c875ed03b3e5f8d6d8c2638309ac592
font_01_sfnt_off00010cce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CCE 4640 bytes
SHA-256: be5035b365bc40c0b4b86b326341fba8f95471e883571ff03e7f2759c568fb06
font_02_sfnt_off00011cb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11CB0 11208 bytes
SHA-256: 9a88d7c8c0493d5c242ec4c21f00d0b9bb979013ec8246e885b4c70c5c47f4dd

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