Malicious PDF — malware analysis report

Static analysis result for SHA-256 de58c5a1edfa1594…

MALICIOUS

PDF

45.5 KB Created: 2020-08-18 17:57:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d13448e740ed3b8e7cc9c745c883da4b SHA-1: 3d774c8635f8ab1b2ed857e50c6a581fa7f37db3 SHA-256: de58c5a1edfa15940bcbb617f976dac5611f7f8bf5bfc2fce059c73be9d6f3b7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple heuristics indicating it is a malicious redirector, specifically designed to host SEO link farms. The primary malicious URL identified is `https://ttraff.ru/pify?keyword=canon+shutter+count+software+free++mac`, which is likely used to phish for user credentials or deliver further malware. The document body, though heavily obfuscated, contains references to this URL and other benign-looking Shopify links, suggesting a deceptive lure.

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=canon+shutter+count+software+free++mac In PDF document text
    • http://files.beasleydoodles.net/uploads/1/3/1/0/131071295/9592137.pdfIn PDF document text
    • http://rulafa.spindriftdancecollective.com/uploads/1/3/0/7/130739789/8019789.pdfIn PDF document text
    • http://files.elysekahler.com/uploads/1/3/0/8/130874276/845e20.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/1/0433/0687/7080/files/54183348773.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3239/6447/files/88949328354.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8220/2782/files/microsoft_access_database_templates_2016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2117/2897/files/midoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9641/6157/files/81201537240.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5245/6346/files/34596124777.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0809/7445/files/wing_chun_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0948/2658/files/durovi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3264/0664/files/35542703219.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4990/9415/files/dragon_quest_builders_prima_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9417/2058/files/kopokefobu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6799/8359/files/38839532990.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_off00006ba1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BA1 5084 bytes
SHA-256: aa295c7dab18bb82641aa03f0c559a89e4e9b15ef6141cc7b5be54b2afd7649a
font_01_sfnt_off00007cd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CD2 13916 bytes
SHA-256: a023a3dbbbd375b5e6474e3a986821a88fbeb51605aaca353b6164671d2d898d

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