Malicious PDF — malware analysis report

Static analysis result for SHA-256 e67fb9b8364f4348…

MALICIOUS

PDF

66.6 KB Created: 2021-01-14 23:39:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 71681e213d9bc6112a39e2d6ecedd5c5 SHA-1: d5281efc96082b1a63491087da8c51c4f04afd4f SHA-256: e67fb9b8364f434873ad9b645b278ade13c19d6fd50a0b172351d820aba0d72b
252 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file contains numerous links to redirector infrastructure, specifically identified as malicious. The document body, though heavily obfuscated, suggests a lure related to 'Medicamentos calcioantagonistas pdf'. The presence of a link farm and redirector links indicates a phishing or scam attempt designed to lead users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9729

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://traffmen.ru/aws?utm_term=medicamentos+calcioantagonistas+pdf In PDF document text
    • https://fenipedixov.weebly.com/uploads/1/3/5/3/135385823/e1cf240b91fdea.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424953/normal_5fe2b55b914d6.pdfIn PDF document text
    • https://jiparebifipi.weebly.com/uploads/1/3/4/6/134638028/4363900.pdfIn PDF document text
    • https://nokavapeselodes.weebly.com/uploads/1/3/4/6/134638024/7598943.pdfIn PDF document text
    • https://tuwanoxesoxeb.weebly.com/uploads/1/3/1/4/131438150/zuzaviluvufogizoxi.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/fowonaxul/93839875126.pdfIn PDF document text
    • https://s3.amazonaws.com/zozuxukoxo/nimimuporimetagumujitu.pdfIn PDF document text
    • https://s3.amazonaws.com/zupenafud/nixixosedozubisi.pdfIn PDF document text
    • https://s3.amazonaws.com/zugutixe/assist_employer_portal_user_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/zepifudoxapo/how_do_you_pronounce_pho_soup.pdfIn PDF document text
    • https://s3.amazonaws.com/wozoxub/binomial_distribution_problems_and_solutions.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxutedi/mozilekimuruf.pdfIn PDF document text
    • https://s3.amazonaws.com/wobuzisibal/radiwamumanofoziwe.pdfIn PDF document text
    • https://s3.amazonaws.com/xojafemori/dalarufidigexoperepufagos.pdfIn PDF document text
    • https://s3.amazonaws.com/tonemakopinibem/49113824879.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eda5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDA5 5384 bytes
SHA-256: 1edb46ff6ba0f7f3395e6e72fcb9914924f0ebfba0fa364b2081a926ebd14c6e

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