Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dd353821bd3700f…

MALICIOUS

PDF

45.8 KB Created: 2020-08-05 01:11:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cfad7045ddd6eb9baacada0adce8fa94 SHA-1: 360e4f25a60a9cf43d8536a8a71e0fefe7a95547 SHA-256: 3dd353821bd3700f9c70b9ebccb899121c335e905465bbe9eed4b2886890a09b
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=cerfa+vente+v%25C3%25A9hicule+occasion+pdf'. The document body, though partially garbled, suggests a lure related to vehicle sales, aligning with phishing tactics. The presence of multiple external PDF links, many hosted on Shopify, further indicates a link farm strategy to obscure the malicious destination.

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=cerfa+vente+v%25C3%25A9hicule+occasion+pdf In PDF document text
    • http://pafaviba.kristynwalker.com/uploads/1/3/0/7/130776760/pesuvufuzisux.pdfIn PDF document text
    • http://files.massagemattersbynancy.com/uploads/1/3/2/7/132741535/384a311920.pdfIn PDF document text
    • http://files.shahrilfaisal.com/uploads/1/3/1/4/131437889/zobasajufamajoj-zarugelo-newatol-dozir.pdfIn PDF document text
    • http://files.tessellationelegance.com/uploads/1/3/1/3/131382223/refagilunelubep.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1247/8360/files/68900498715.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8619/8424/files/52973777816.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1827/2423/files/canvas_draw_circle.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7505/1424/files/gavuvutona.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8525/9159/files/59661989590.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2151/6449/files/kovuxuwirika.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1290/6405/files/ketoto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1926/3397/files/factorio_rso_mod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6278/0311/files/xafiravobu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2338/2174/files/le_trait_de_l_argumentation.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000630a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x630A 5352 bytes
SHA-256: 61d209950f2d5b40894f8b20eb95fc61a5fbf64dcc224158e701d938ffb24d06
font_01_sfnt_off000074f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74F0 11928 bytes
SHA-256: 1e9e6867840f5525d2ab75c59406df0f3c2ad169dfe0185d4cafe5bd1b08c7f2
font_02_sfnt_off00009a05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A05 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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