Malicious PDF — malware analysis report

Static analysis result for SHA-256 e278610903320514…

MALICIOUS

PDF

69.3 KB Created: 2020-11-24 03:59:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: bf9d298be35d5a9ae7219151c92aade9 SHA-1: eaa74f8e10af8177d2f41e78aec5fe0bf39c3523 SHA-256: e278610903320514d683b9c6d676b5725f487b4b566491a0a93fcb1aa678beab
196 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. It contains a large number of external links, many pointing to PDF files, suggesting a link farm or SEO spam tactic. The embedded URLs, such as 'https://trafftec.ru/strik?utm_term=dangerous+woman+ariana+grande+mp3', are likely used to redirect users to malicious content or phishing pages.

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
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafftec.ru/strik?utm_term=dangerous+woman+ariana+grande+mp3 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4365586/normal_5f9a593540890.pdfIn PDF document text
    • https://s3.amazonaws.com/bexolamabad/mozurim.pdfIn PDF document text
    • https://s3.amazonaws.com/vezumobigodub/dna_study_guide_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/liguwubore/30352869368.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427077/normal_5fada3ecb5482.pdfIn PDF document text
    • https://woxomeze.weebly.com/uploads/1/3/4/4/134498023/4980059.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382621/normal_5fa598612c6ea.pdfIn PDF document text
    • https://lonodoxelu.weebly.com/uploads/1/3/4/3/134305804/roruwuw.pdfIn PDF document text
    • https://mumixopid.weebly.com/uploads/1/3/1/8/131872042/bupoxegikifu_fenamijixogos_jimoxovume.pdfIn PDF document text
    • https://s3.amazonaws.com/rujabepifar/acrobat_pro_vs_standard.pdfIn PDF document text
    • https://birebojutadavom.weebly.com/uploads/1/3/4/3/134342015/642011f5.pdfIn PDF document text
    • https://gasagadivegolix.weebly.com/uploads/1/3/4/4/134488570/semino.pdfIn PDF document text
    • https://s3.amazonaws.com/mufukep/uta_hagen_book.pdfIn PDF document text
    • https://gefozovunipor.weebly.com/uploads/1/3/4/5/134585144/efbf42dbb70c2a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000b12f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB12F 5500 bytes
SHA-256: 7c240f592938ea05b6097b105395b0083bf1de65cc3b9759ec4b64d7146d9780
font_01_sfnt_off0000c3eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3EB 10832 bytes
SHA-256: d5a3ea2d9bc653e5053ae58fdc894b340a00359406d8bc27f7dadd9a4ab5a1cc
font_02_sfnt_off0000e856.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE856 18776 bytes
SHA-256: 1df41416ece054d3cca32f135e48dc95f4d9c8a2bff4ba4edba1d14e21aabef6

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