Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c27cb2147456442…

MALICIOUS

PDF

91.3 KB Created: 2020-12-17 05:42:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d97058d349ca50cd6addc5228f1883c5 SHA-1: 19f42dbfdd2b12e72c7430b5a066206d57de3257 SHA-256: 1c27cb21474564426b01ace9c1691cc0d4246e931ab4ebc760d0d70297f9243a
194 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains embedded links that redirect to a known malicious URL, identified as a redirector for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to lure the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://traffmen.ru/strik?utm_term=tekkit+legends+starter+guide In PDF document text
    • https://cdn-cms.f-static.net/uploads/4380403/normal_5fa4855dccfe0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389804/normal_5fae71b406231.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/672efda3-2200-4d78-bc25-7860fb81153b/wupeliwinasus.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc28eaf9698b02c7f2b2aca/t/5fc82416dcb5b2607970320f/1606951958736/used_golf_bags_for_sale_on_amazon.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f01cf21a-ed99-4bf5-a425-dca99e1f114c/first_data_bravo_points.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f8462a28-877f-4885-97ca-b014e8d925bb/mcdougal_littell_biology_study_guide.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf5730173fb5383b99559b/1606375219662/boots_of_haste_pathfinder.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0e949dbc-0908-4360-ba06-25296172f2ca/30765674789.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0d8d024b06a7eb3fedc56/t/5fc49a5061e25426e1caa1e5/1606720083468/vizowugowaxaka.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e13de41b-d60e-4961-9e6e-65b53cf5091a/88854684191.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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_off000111ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x111CA 5004 bytes
SHA-256: 61a2fd11d23b648eba4dab285d78cd43d6077b3864fbb8183dfbf0543c41edc1
font_01_sfnt_off000122dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x122DD 12492 bytes
SHA-256: 4e73e3e429a019bbd8f8aebfac7ab8d9c66a2b26f279dca17475e65146c91694
font_02_sfnt_off00014bb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14BB6 16060 bytes
SHA-256: 1a51fac5cecc05d5f0a5d3b698ffe240ccab470cdba6a823ba27c6c2a12c20dd

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