Malicious PDF — malware analysis report

Static analysis result for SHA-256 c937bb3ff0804218…

MALICIOUS

PDF

51.3 KB Created: 2020-08-09 09:48:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bf61808c7e7908cc46e206a5e80fd0c0 SHA-1: bf34822d1e04dffca269354e37f5abc6446bf665 SHA-256: c937bb3ff0804218bca1070f867cf15bcfaea1c21714c5c0675e8f67d84c00c8
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a significant number of embedded links, with a critical heuristic identifying a malicious redirector. The primary malicious URL, https://ttraff.com/pify?keyword=comment+canaliser+sa+col%25C3%25A8re+pdf, is likely used to funnel victims to further malicious content. The presence of a link farm suggests an attempt to obscure the final destination or to leverage SEO techniques for distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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://ttraff.com/pify?keyword=comment+canaliser+sa+col%25C3%25A8re+pdf In PDF document text
    • http://files.101american.com/uploads/1/3/1/3/131384663/3cc61b61a07.pdfIn PDF document text
    • http://files.blueskyoga.co.uk/uploads/1/3/1/4/131437149/9953346.pdfIn PDF document text
    • http://files.jeeeunhong.com/uploads/1/3/1/4/131408970/nujelajur.pdfIn PDF document text
    • http://files.oswegoeasthighschoolbands.com/uploads/1/3/1/4/131438418/6551688.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5680/6553/files/jarulodetepizixutur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1079/1323/files/22246114606.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3681/9104/files/75497881258.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1938/5502/files/movivagadowitidefigozu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3159/3113/files/zasevediwulevu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6725/1615/files/8th_grade_vocabulary_words.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/74251218784.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0326/4667/files/penjelasan_uud_1945_sebelum_amandemen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8236/6629/files/mowegaxopot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9151/6826/files/cary_grant_biography.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0700/0219/files/zonidokilowebovalutos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4211/0631/files/degradacion_y_contaminacion_del_suelo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0702/5056/files/wugedu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6745/7188/files/93627457957.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

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_off000086ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86EA 5348 bytes
SHA-256: 3021d27ad3680fdf9f734bfa878e3f7f435770284c5a1ec4cf42b4c535fb22ee
font_01_sfnt_off000098b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98B9 11944 bytes
SHA-256: 2e61cdaef8eeef1f5f0e1b3a59e5f3323854ff8b82f93fa0758ba7f286fbf216

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