Malicious PDF — malware analysis report

Static analysis result for SHA-256 75f52964e33e5967…

MALICIOUS

PDF

52.9 KB Created: 2020-07-30 20:43:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 2158ffc5cc6872746bcf9f8427297b99 SHA-1: 45c03732c41ce579797547a229717abc07184966 SHA-256: 75f52964e33e59671e816ba26eaba61febbdbb61ff19eccf9bcba91479d26338
194 Risk Score

Malware Insights

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

The PDF contains numerous links designed to create a link farm, with a primary redirector pointing to 'ttraff.cc'. This redirector is associated with malicious activity, likely leading to a phishing or malware download page. The document body, though heavily obfuscated, contains text related to a medical topic ('retinopatia hipertensiva pdf elsevier') which is likely a lure.

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=retinopatia+hipertensiva+pdf+elsevier In PDF document text
    • http://files.yewgem.co.uk/uploads/1/3/2/6/132681033/dc4a86.pdfIn PDF document text
    • http://files.inlandnwroutes.com/uploads/1/3/0/7/130776887/93fd99e0c7e.pdfIn PDF document text
    • http://files.mankinstudios.com/uploads/1/3/2/6/132696145/memivarewud.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/1/0431/5054/0964/files/24019096212.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7969/5517/files/14972788627.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2256/5032/files/82511444139.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8343/2096/files/jibikuvozi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5026/1915/files/rafawufanometorebup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7817/3343/files/61031946080.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0716/4064/files/48251713622.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1003/9719/files/5937565709.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0357/6481/files/71837050014.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2161/5775/files/vegamaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4196/4710/files/dozijusosaki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5018/8443/files/vimurose.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8052/4710/files/tetix.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
🗂 Part of campaign: lifepathchurch.org 4 samples

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_off000091c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91C5 4984 bytes
SHA-256: c74e7e80a0aa666345687652eecade4981b243d79e390e09332fe4df73dca49d
font_01_sfnt_off0000a2af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA2AF 10424 bytes
SHA-256: ee462a5074ad7a60fa5d4caea6c43902a26ef93a041b3a491f3270b02d9e00dd

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