Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3367ada8951818f…

MALICIOUS

PDF

67.6 KB Created: 2021-02-09 06:41:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 647b86a88cb12a776f644c36c6dd58d3 SHA-1: 12bb3e71c41b40bd82b36be93b744cf15b9b9d57 SHA-256: b3367ada8951818f591e7c5635a34a7b1019a2c69a591f27f8233050624686d9
182 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF file was flagged by multiple heuristics, including a critical alert for linking to known malicious redirector infrastructure. The file contains numerous embedded links, many hosted on disposable domains, suggesting a phishing or scam attempt. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

Heuristics 4

  • 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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://crophysi.ru/aws?utm_term=angry+birds+movie+soundtrack+free In PDF document text
    • https://menuzuxa.weebly.com/uploads/1/3/1/0/131070619/memerumexagiwunuwap.pdfIn PDF document text
    • https://lipixifafamuxa.weebly.com/uploads/1/3/0/9/130969384/4658332.pdfIn PDF document text
    • https://cdn.sqhk.co/kosenopelid/gkhgLha/dodgers_game_last_night_last_play.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479460/normal_601af2473ff4d.pdfIn PDF document text
    • https://texifuxifom.weebly.com/uploads/1/3/0/7/130776695/bidif.pdfIn PDF document text
    • https://cdn.sqhk.co/malevevipali/gZygjjb/kung_fu_panda_zodiac_signs.pdfIn PDF document text
    • https://cdn.sqhk.co/bomumuxa/1igjhij/658296342.pdfIn PDF document text
    • http://fazojum.66ghz.com/informal_agents_of_social_control_definition.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404502/normal_5fe30e233d6c8.pdfIn PDF document text
    • https://cdn.sqhk.co/dodalowogiv/bSj3Dhe/24788623132.pdfIn PDF document text
    • https://cdn.sqhk.co/sebutarukaw/gLBgdpd/baresosofifumekupagex.pdfIn PDF document text
    • https://s3.amazonaws.com/laradusa/diploid_and_haploid_worksheet_key.pdfIn PDF document text
    • http://fujatelet.epizy.com/624930181.pdfIn PDF document text
    • https://s3.amazonaws.com/tutapaxi/axl_movie_english_subtitles.pdfIn PDF document text

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