Malicious PDF — malware analysis report

Static analysis result for SHA-256 66f90019813088c6…

MALICIOUS

PDF

76.3 KB Created: 2021-02-25 02:20:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 29e2c4697fe43bf9046941cec9ef42ad SHA-1: 032b4fcfb0563e82ac56c42c75180e95915332b5 SHA-256: 66f90019813088c663d87eb3bc27f2512411d945561a261b5252afcbdd9f0688
252 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document contains numerous links designed to appear as search results or download pages, with a prominent lure related to a movie title. The heuristic firings indicate that the PDF links to known malicious redirector infrastructure and is part of a link farm, suggesting a phishing or malware distribution scheme. No scripts were extracted, but the document's structure and embedded URLs strongly suggest it's a phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9346

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://yafferge.ru/award?keyword=pet+sematary+1989+full+movie+free In PDF document text
    • https://cdn-cms.f-static.net/uploads/4424997/normal_60329ca148ff7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416671/normal_5fe126dc3b826.pdfIn PDF document text
    • https://cdn.sqhk.co/pugudanirav/RgcRjbk/pilot_fountain_pen_fine_point.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423460/normal_60323b3f0fcbd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481420/normal_601637d5b4574.pdfIn PDF document text
    • https://sijetuso.weebly.com/uploads/1/3/4/4/134499475/c553c.pdfIn PDF document text
    • https://dulewexafup.weebly.com/uploads/1/3/4/7/134702005/96be8467.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393625/normal_5ff19156c0df8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4390680/normal_5fef853b8160d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4504641/normal_5fedcb4319af5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417319/normal_5fe01a5a5e936.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486053/normal_600b314f76369.pdfIn PDF document text
    • https://cdn.sqhk.co/zuxafopagad/jijUXie/40399256856.pdfIn PDF document text
    • https://jubigugatuse.weebly.com/uploads/1/3/0/7/130775741/zobozoforutaxe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4531523/normal_601dd01529c77.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387932/normal_5ff8fed5896fb.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/kubafezin/ropexobagatevinejub.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001018d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1018D 5252 bytes
SHA-256: bd39fbb413c58425b039a1abb61f1d1c7eaa4b691cf3afca0a8fb6b5c29ac11c
font_01_sfnt_off00011375.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11375 10644 bytes
SHA-256: 0773eb70cb401a3082f30e9a2050ae32c2a66c3ebba9c84dd6e7cb073fd0f351

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