Malicious PDF — malware analysis report

Static analysis result for SHA-256 05fb246b6d328247…

MALICIOUS

PDF

43.3 KB Created: 2020-07-29 06:20:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1e67d985e4c4599247dcf43f4bb757e5 SHA-1: 65970b245e4aff669ef31830c0fb0e607584f610 SHA-256: 05fb246b6d3282479d60f0c0f6e3a0c9d374c810bf03b10b4a45345c93e08e50
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which are hosted on Shopify and appear to be part of an SEO link farm designed to attract users. The primary redirector URL, https://ttraff.ru/pify, is flagged as malicious and used in conjunction with keywords suggesting a free download lure. This indicates a phishing or malware distribution attempt.

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=addition+subtraction+multiplication+and+division+pdf In PDF document text
    • http://files.gustavoacosta.com/uploads/1/3/0/7/130775033/d4609be2041d1.pdfIn PDF document text
    • http://files.elmcreeklonghorns.com/uploads/1/3/0/8/130874646/juxugox.pdfIn PDF document text
    • http://files.taeyongpark.com/uploads/1/3/0/9/130969012/biwonedutitutilomize.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/1/0430/6134/6466/files/fexegebiwosiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9581/7382/files/vamimuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8578/3447/files/73471149459.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9307/1774/files/vututifokovudanixiwiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8180/1629/files/26747013148.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7214/4038/files/27430705785.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8558/6841/files/17242599552.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2890/5127/files/modobodekonu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65105912314.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/14490041284.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2838/8772/files/genesevaror.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4899/2919/files/61928003543.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9054/2753/files/kijezalitokituwe.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 4

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 5252 bytes
SHA-256: e3b9629bc5c6aad9591fd9320c334b1d89448fb2d14a1f339a64dd04bd6d2005
font_01_sfnt_off00007d57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D57 9976 bytes
SHA-256: e3f915853ebeb92daf28b3d378bf85d7b5361f18e8a01eb99afd0cd8e9b31981

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