Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e3bbd0715d2e00b…

MALICIOUS

PDF

70.7 KB Created: 2020-12-09 00:41:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-19
MD5: af017ce0dd0bac6d3b21958b5d080cb3 SHA-1: 4198929935490ba6f5b4dc36d951fd90f1db5ed2 SHA-256: 4e3bbd0715d2e00b2adc0a0eb865ff30f82cb0872ff6a8664845bcb372524855
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://cctraff.ru/strik?utm_term=it+works+energy+drink+nutrition+facts In PDF document text
    • https://newadagunezadev.weebly.com/uploads/1/3/4/6/134684801/kofesevutenorol-nokidumir.pdfIn PDF document text
    • https://kezobonuduwu.weebly.com/uploads/1/3/4/4/134457579/739356.pdfIn PDF document text
    • https://biwoponafi.weebly.com/uploads/1/3/4/7/134767969/zidorani.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466175/normal_5fba79e64fcd8.pdfIn PDF document text
    • https://xutonipojoneri.weebly.com/uploads/1/3/4/6/134667901/siwidexu.pdfIn PDF document text
    • https://wizisenax.weebly.com/uploads/1/3/4/3/134320615/zejiw_pumakile_lomubaduze.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/polojuliragam/25624629778.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc553ca11f6a41984a31074/t/5fccddb73ff1011540f08455/1607261625101/14854910736.pdfIn PDF document text
    • https://s3.amazonaws.com/tumasun/wovegirulizofenoriz.pdfIn PDF document text
    • https://s3.amazonaws.com/tibanepoxilibud/gosijuwirovox.pdfIn PDF document text
    • https://s3.amazonaws.com/wiwuxot/campaign_management_analytics.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc10374bda9c57a97becd24/t/5fc56f917acac6192a79c651/1606774673818/anime_art_styles_drawing.pdfIn PDF document text
    • https://s3.amazonaws.com/jozetej/deskripsi_batuan_beku.pdfIn PDF document text
    • https://s3.amazonaws.com/fewifuwu/allianz_visitor_to_canada_claim_form.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_off0000d670.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD670 5352 bytes
SHA-256: 8a7ca364b068c3f160cea1b57809f2d3fb4c66c640e141c573306ef200f55a8a
font_01_sfnt_off0000e8d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8D7 10748 bytes
SHA-256: 7836ee35be75489fbfa2755abdc3cfc489809657cc021f7734dc5130a7f65502

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