Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e2dfcd639c3b184…

MALICIOUS

PDF

46.0 KB Created: 2020-08-18 15:50:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 52b6f9f7533ee024773691062a2b7af1 SHA-1: da71069b5676f99637493f9761a1e549686293a4 SHA-256: 8e2dfcd639c3b184689cc44590527fe2fe8848a06f52236baf1d6fef05494fcd
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a significant number of embedded links, with the primary link pointing to a known malicious redirector. This indicates a link farm or SEO poisoning attack designed to direct users to malicious infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=building+construction+images', which is flagged as a malicious redirector. The presence of numerous Shopify URLs suggests an attempt to blend malicious links with seemingly benign ones.

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=building+construction+images In PDF document text
    • http://files.fiberenvy.net/uploads/1/3/1/6/131606349/5094ac66492a.pdfIn PDF document text
    • http://files.oiseaux-tempete.com/uploads/1/3/2/6/132696113/xisokumekoleki.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/1/0438/0708/0605/files/13672260402.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8029/2254/files/fikana.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4217/7181/files/pijoxeti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0736/0667/files/94276273699.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0007/0307/files/walmart_mission_statement.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3098/4357/files/sisaxabef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8926/4794/files/sixebakaxuteveme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4646/8769/files/44693064684.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9121/3988/files/gudifirememefopebuxave.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3937/2965/files/72684433432.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8955/9705/files/25129530466.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 7

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_off0000769c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x769C 5308 bytes
SHA-256: db05f546b051390e359a38e991abd9dd932d5f5bd5663f53ac16d82065d9e151
font_01_sfnt_off00008882.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8882 10284 bytes
SHA-256: f083fc0403a9a2cdc04089591e7b61da20d596f066d7322272dc333ce245b04c

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