Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f93d9b261f6de2a…

MALICIOUS

PDF

44.0 KB Created: 2020-08-23 10:26:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fe6d9079356da056e0d24c8d0bff46cc SHA-1: 9627a9fe86b6e861d28eeda9e145fff8f5b276df SHA-256: 1f93d9b261f6de2aa955f4cb04b0dbf6f4803525ef987309c0138f9f5a1f141d
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a redirector service. The primary malicious URL identified is https://ttraff.cc/pify?keyword=freeview+tv+guide+bbc+scotland, which is likely used to direct users to malicious content. The document body, though heavily obfuscated, contains references to the redirector URL and other PDF files hosted on various domains, suggesting a link farm or redirection scheme.

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.cc/pify?keyword=freeview+tv+guide+bbc+scotland In PDF document text
    • http://files.colossalsportsent.com/uploads/1/3/0/7/130739021/rofuwot-xunepowupububuz.pdfIn PDF document text
    • http://files.breescircle.org/uploads/1/3/1/3/131381376/2215830.pdfIn PDF document text
    • http://files.priestlysalvage.ca/uploads/1/3/1/8/131860787/peselavatowet.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/1/0433/1631/4277/files/genusovubede.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/6250/9987/files/convert_cdr_to_ai_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4378/1792/files/1605571216.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8232/3870/files/historia_cateter_venoso_central.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/41635404078.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9159/1321/files/mario_pipe_sound.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1826/3448/files/telerik_kendo_ui_spreadsheet.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_off00006d4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D4A 5356 bytes
SHA-256: d5d85469825a51b4ec55b55f62205b316d7195363af371e7b996facb3f3aa5ce
font_01_sfnt_off00007fa1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FA1 10612 bytes
SHA-256: 4c67d355536e9afe7a165afd0066af8bcc992b24bdca86fdd88bbea4f5faefe3

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