Malicious PDF — malware analysis report

Static analysis result for SHA-256 75f667698f63789b…

MALICIOUS

PDF

60.9 KB Created: 2020-08-17 06:56:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2d13e4ba1715915c707b8cf8cf785520 SHA-1: 4a7baa3ccde4f7d8047fb3c1a8a454e499c5a364 SHA-256: 75f667698f63789b2b8120d7b28e8797ddfbe982d8f0272c2de2a10501f1ba01
194 Risk Score

Malware Insights

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

This PDF file contains numerous links, many of which point to a redirector service at 'ttraff.ru'. The primary link, 'https://ttraff.ru/pify?keyword=ubuntu+in+african+culture+pdf', is identified as a malicious redirector, suggesting the document is part of a link farm or phishing campaign. The document body, though heavily obfuscated, contains references to PDF files hosted on Shopify, likely as lures. No scripts were extracted, but the presence of multiple malicious links indicates a high likelihood of user redirection to harmful content.

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=ubuntu+in+african+culture+pdf In PDF document text
    • http://files.flourishinglifesociety.com/uploads/1/3/1/3/131398419/8564665.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/1/0435/5178/5109/files/gaveviwuzimifusaxexujel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4923/8179/files/fofojam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7937/6798/files/41293813741.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4864/0418/files/10736000960.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2044/3045/files/washington_manual_of_medical_therapeutics_35th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2451/5229/files/ripid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3723/6119/files/merge_mac_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5795/5494/files/77147095808.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9460/5975/files/kafoxuzoviluruxes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5440/7580/files/xuvik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4588/6884/files/sejarah_penjajahan_portugis_di_indonesia.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 2

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_off0000af94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAF94 5104 bytes
SHA-256: 80df94dc294da74e7b1863332f3b8493b6837c343d7a7677ea4fe06337dcdee9
font_01_sfnt_off0000c0f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC0F5 10920 bytes
SHA-256: cb5030234e00a4e51cca7edcf7de2057c4743b2e56890d4d4e33871cc53ff35c

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