Malicious PDF — malware analysis report

Static analysis result for SHA-256 04d942e99a196d7e…

MALICIOUS

PDF

43.2 KB Created: 2020-08-21 09:19:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d26a669812c60b0e1a5872424cb29f40 SHA-1: c9f2ed881fea459e68cb6f0e3a3b93e3e6eae054 SHA-256: 04d942e99a196d7e8eeb770040630bfedb9dea2e1eac18120fa50fa553b16044
194 Risk Score

Malware Insights

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

This PDF document contains a link disguised as a 'drinks mixology guide' that redirects to malicious infrastructure at `https://ttraff.ru/pify?keyword=drinks+mixology+guide`. The document also features a large number of links to other PDFs hosted on Shopify, likely part of an SEO link farm to obscure the malicious redirector. The ML classifier strongly indicated maliciousness.

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=drinks+mixology+guide In PDF document text
    • http://files.swlamasternaturalists.org/uploads/1/3/2/3/132303131/1863506.pdfIn PDF document text
    • http://files.bcrenergygroup.org/uploads/1/3/1/3/131380397/8d9e99dae75.pdfIn PDF document text
    • http://files.cocleaningservice.com/uploads/1/3/2/6/132681479/novitumugikepu_kurof.pdfIn PDF document text
    • http://files.coffeejustgothealthier.com/uploads/1/3/1/4/131453718/gumotilezinotol.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/1/0430/4722/3458/files/74039245486.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6750/6839/files/33333601391.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/2259/3698/files/comentrios_ao_cdigo_brasileiro_de_aeronutica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9029/7503/files/46210143278.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3631/0693/files/lefitivegifovufixonasapev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2385/9873/files/john_deere_rx75.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/6645/0074/files/bhojpuri_song_free_2019.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_off00006c75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C75 5168 bytes
SHA-256: 2c873ee8d05b73c46934e428f5c458931c0a7de1f2fc0369f1c31d005f14ba6e
font_01_sfnt_off00007df8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DF8 10120 bytes
SHA-256: 466007ed5ca51e841defb40dcd27243e8a167994284739ab465fae2ef0984bab

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