Malicious PDF — malware analysis report

Static analysis result for SHA-256 52994ef6f81285d9…

MALICIOUS

PDF

58.6 KB Created: 2021-01-05 04:56:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 2d19f4edd52164b9bae1a24a5ba7c105 SHA-1: 83b76eaff5ed04fa0a6991815944c5e12baf4b64 SHA-256: 52994ef6f81285d93d3115912678a6f487f6045e2e2d6460a2e9d53bdfbd5f64
252 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple heuristics indicating malicious redirection and a link farm, pointing to known malicious redirector infrastructure. The embedded URLs and the ClamAV detection strongly suggest a phishing or malware distribution attempt. No scripts were extracted from this sample, but the PDF structure itself is used to host malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6487

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.
  • 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.
  • 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=astro+turf+laying+guide In PDF document text
    • https://naxibozagut.weebly.com/uploads/1/3/4/5/134580084/tumipunixajeru.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413862/normal_5f949bc16d2b3.pdfIn PDF document text
    • https://gosidobesek.weebly.com/uploads/1/3/4/0/134017516/8360315.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384634/normal_5fa041028cd59.pdfIn PDF document text
    • https://s3.amazonaws.com/lomuper/barbara_bush_funeral_program.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b143d0cb-1ed3-4d71-b1c3-1aab477c14ae/what_does_a_huey_helicopter_sound_like.pdfIn PDF document text
    • https://s3.amazonaws.com/megulu/astrology_book.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d42d7dcb-04b5-48fa-9218-f1cfffc93c73/lucky_rider_crazy_moto_racing_game.pdfIn PDF document text
    • https://s3.amazonaws.com/fadedosi/xijolol.pdfIn PDF document text
    • https://s3.amazonaws.com/lixuduwonifa/67619972618.pdfIn PDF document text
    • https://s3.amazonaws.com/xezonijida/jakibik.pdfIn PDF document text

Open this report in the interactive analyzer, or submit your own file for analysis.