Malicious PDF — malware analysis report

Static analysis result for SHA-256 85b2ccdb16c59e46…

MALICIOUS

PDF

75.9 KB Created: 2020-08-09 08:26:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fadf4b638dff82e7bf3654d124cb1ba4 SHA-1: 6396e9123dd32bbdf43b6371b8bfeb16abb94ff5 SHA-256: 85b2ccdb16c59e46cd757c661071329c5ce3de43ccc55233b802dcb0bd2965e1
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which point to a redirector service. The primary malicious URL identified is https://ttraff.ru/pify?keyword=the+dead+boyfriend+rl+stine+pdf, which is flagged as a malicious redirector. The document body, though heavily obfuscated, contains this URL, suggesting an attempt to disguise a malicious link as content. The presence of a large number of PDF links indicates a link farm or SEO manipulation tactic to distribute malicious content.

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=the+dead+boyfriend+rl+stine+pdf In PDF document text
    • http://files.saintsmmk.com/uploads/1/3/0/7/130775080/gemakuf.pdfIn PDF document text
    • http://teginek.curtfonger.com/uploads/1/3/0/7/130739615/5734659.pdfIn PDF document text
    • http://files.zombietoes.com/uploads/1/3/2/6/132695432/wopixox.pdfIn PDF document text
    • http://files.djsfunctionandevents.com/uploads/1/3/1/4/131483305/3ce81c86fb1a2.pdfIn PDF document text
    • http://files.narwc.org/uploads/1/3/0/9/130969118/2af283bc70.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/1/0432/7673/0533/files/49523566025.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/0273/6279/files/core_and_advanced_java_black_book_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/7678/6078/files/wozuvisuwifemir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0389/6217/files/tuzekorewe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6943/2230/files/zupunuzetolazatelap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/texirid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0480/3746/files/envision_math_grade_2_topic_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5122/9089/files/50336093805.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2318/7614/files/foxiwekukixidugebebulopi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0388/6238/files/timipisema.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7038/2490/files/7185369789.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0016/8597/files/13161452576.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 6

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_off0000ecf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECF4 5320 bytes
SHA-256: 3b40e76b0f230321f3047e0d273defe285d7de6e4f5e67db0033ff056e774ac6
font_01_sfnt_off0000ff06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF06 10320 bytes
SHA-256: ccfba64adca6114bb7a52663595e516ed90241f44c714efba167bda1a3c26eab

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