Malicious PDF — malware analysis report

Static analysis result for SHA-256 0420d6f23633f63e…

MALICIOUS

PDF

43.5 KB Created: 2020-08-13 23:31:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: eeca1909552c707e704433442fdd0476 SHA-1: 4d327cee6f1292fc50bf9148095b673c566b6b64 SHA-256: 0420d6f23633f63e42610249c8601dd373038e225c2d4f74c2f21a62737819a6
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.ru) known for malicious activity. The document body's title, 'Formule gaz dioxyde de carbone', appears to be a lure to encourage users to click these links. The ML classifier strongly indicated maliciousness, and the presence of a link farm suggests an attempt to distribute malicious content or phish users.

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=formule+gaz+dioxyde+de+carbone In PDF document text
    • http://fapig.customerservicetalk.com/uploads/1/3/1/8/131857631/duwazavarinemos.pdfIn PDF document text
    • http://files.jplinde.com/uploads/1/3/0/7/130739326/xujigogowogu.pdfIn PDF document text
    • http://dozetoro.vanderlegal.com/uploads/1/3/1/4/131438641/ladex-wilojudinotij-vunibaxazizu.pdfIn PDF document text
    • http://files.anabelaphotography.com/uploads/1/3/0/7/130775286/3612783.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/1/0431/0364/9953/files/1-_99_thieving.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9463/8749/files/google_analytics_code_sample.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5122/0120/files/limevotuvawedodefizebel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/56773010908.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3458/0891/files/85173263352.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8343/2096/files/pupagek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8768/1954/files/49521303287.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2859/4344/files/wobem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4899/2930/files/dowax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8868/3932/files/placenta_previa_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6971/9196/files/aneurisma_de_aorta_abdominal_roto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2744/6435/files/vmware_license_key_free.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 3

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_off0000674c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x674C 5396 bytes
SHA-256: 1d13d75badf638ab26bc10e161cea47f3e00afd8d6417dc038703c77144b1b1b
font_01_sfnt_off000079a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79A2 11844 bytes
SHA-256: c8dbd00ab3415babcd667824914c5245105db22ca4696000a336559e3924954e

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