Malicious PDF — malware analysis report

Static analysis result for SHA-256 472e2c711e1e23d5…

MALICIOUS

PDF

99.4 KB Created: 2020-08-01 18:13:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 81ebabce6c103c44bac7347e6a4765ed SHA-1: e8b2dd0766c3dc5d9e2ab70729adaf256a24190e SHA-256: 472e2c711e1e23d5e6bd846f821a442a5c8a7f5f7e63b888cd837211b4f17f05
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=julian+date+calendar'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, including one to 'https://cdn.shopify.com/s/files/1/0432/2341/6987/files/5768127571.pdf'. The document body, though heavily obfuscated, contains references to 'Julian date calendar' and 'wkhtmltopdf', suggesting a lure related to date calculations or document generation, which is then used to mask the malicious redirect.

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=julian+date+calendar In PDF document text
    • http://files.knoxtrailforge.com/uploads/1/3/1/1/131164383/lekenapu.pdfIn PDF document text
    • http://files.photosbywildwood.com/uploads/1/3/1/3/131398224/d1638605c7c.pdfIn PDF document text
    • http://files.stephaniemarceau.com/uploads/1/3/2/3/132302987/82cadb34d8a.pdfIn PDF document text
    • http://files.clothdiaperproject.com/uploads/1/3/0/8/130874162/27dc0.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/1/0432/2341/6987/files/5768127571.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7246/9669/files/726637695.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0507/4838/files/40996213297.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7108/5475/files/zivorofuwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4429/1228/files/16122409113.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1742/1479/files/73552856322.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9823/4270/files/56106193567.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0867/1394/files/99290994061.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3759/5560/files/faziseluwiribobeloruzud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3769/5906/files/fill_drupal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5827/4205/files/41852548363.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4782/9156/files/kaximoxowuzoz.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_off00014031.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14031 4744 bytes
SHA-256: 33cd20ddebc7ff1cc7bf0788ec4f9fb385f387ff685893719dd874727faac4f3
font_01_sfnt_off00015062.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15062 15424 bytes
SHA-256: 285e24be1d2d6b2ac67f633441a637a744965f24a78ecf2835d079ac3984a060

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