Malicious PDF — malware analysis report

Static analysis result for SHA-256 b723fa47dd488afc…

MALICIOUS

PDF

43.6 KB Created: 2020-08-06 08:59:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0aec92cb7490436d878810299c549e7a SHA-1: 923e9a5597c2b3b1765f102f22a35ffcef60285d SHA-256: b723fa47dd488afc8e7f57a068ab6bdba18750711b2ac42bb6d6c237f40a5224
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=partnership+agreement+template+uk+pdf'. This URL is embedded within the document body, suggesting a lure to trick users into clicking it. The presence of numerous other PDF links, many hosted on Shopify, indicates a link farm strategy. The ML classifier also strongly flagged this PDF as malicious.

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.ru/pify?keyword=partnership+agreement+template+uk+pdf In PDF document text
    • http://files.jrhewson.com/uploads/1/3/1/3/131379696/ganuveledesese-likutubezowi-xenowavukisad-vixexazek.pdfIn PDF document text
    • http://jujavinex.mrsmalesclass.com/uploads/1/3/1/3/131379730/dogep_duratetusugur_lakaxeba_bivinukokes.pdfIn PDF document text
    • http://files.dawghouses.net/uploads/1/3/0/8/130813100/2a9c0d4b8b36.pdfIn PDF document text
    • http://files.miltonmurray.org/uploads/1/3/1/6/131606644/nelemilor.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/1/0432/6876/7907/files/toda_la_historia_de_la_primera_guerra_mundial_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4954/1017/files/dl_44_application_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2884/8538/files/31006297388.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8475/0747/files/register_nick_irc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0880/2468/files/tebizubovijuboda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7927/9527/files/giwinezarire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2665/3077/files/software_architecture_patterns_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5293/3020/files/90617426889.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6078/1465/files/5208752931.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9894/8255/files/49126399726.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6737/4758/files/lopapisu.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_off00006cef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CEF 5520 bytes
SHA-256: 8d80afe18217640085a459c57017bebffe80c864e35c1a036ee94d8a53af85fe
font_01_sfnt_off00007f90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F90 10024 bytes
SHA-256: e57a0be119d6e3e9b01d0f3a2941c53e764cdd36aa23936e396693d7a86d5216

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