Malicious PDF — malware analysis report

Static analysis result for SHA-256 eef6d26514d7babd…

MALICIOUS

PDF

56.7 KB Created: 2020-08-02 22:09:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c35a252a89829a026b0bfff78e2015ee SHA-1: e7be73c301d604eaba1cff4bc23de615984e1b8a SHA-256: eef6d26514d7babda6337a8c447d41074fc6c17d9329965b98d439f99dffa163
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The primary malicious URL identified is 'https://ttraff.cc/pify?keyword=vanquisher+medal+terraria', which is part of a known malicious redirector infrastructure. The document body, though heavily obfuscated, also contains this URL, reinforcing its role in a malicious campaign. The presence of numerous links to external PDFs, many hosted on Shopify, suggests an attempt to obscure the ultimate destination or to leverage seemingly benign platforms for distribution.

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=vanquisher+medal+terraria In PDF document text
    • http://files.buildingblocksnorfolkva.com/uploads/1/3/2/6/132695445/a40b6.pdfIn PDF document text
    • http://files.corneliusmullerproductions.com/uploads/1/3/1/1/131164475/polati.pdfIn PDF document text
    • http://files.leasidearena.com/uploads/1/3/2/7/132740870/zopimozifutivirole.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/1/0443/0397/4556/files/electronics_second_edition_hambley.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5080/3095/files/stardew_bee_house.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1648/6040/files/ganimo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8915/8554/files/vegar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8748/5342/files/86251923985.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3458/1919/files/27170599810.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9784/1063/files/gerevoxutijepuwigi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7361/0663/files/48405627834.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3714/7811/files/jebuje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9532/6887/files/4744206668.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7133/2767/files/69977641657.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006383.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6383 19484 bytes
SHA-256: c184b792f0e5080ccd6bcf34d865b3b9e0fad308209bc46465dcf62c3a661837
font_01_sfnt_off0000a129.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA129 5156 bytes
SHA-256: 4948766122ac59b68533abcb3748dfbf5653eee2b488cda2ca1a3cbb388b81a1
font_02_sfnt_off0000b286.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB286 10288 bytes
SHA-256: 4224216c36b05374f06cb5a4b9580f478571b7b922dd8b4f5e9383e9ef9a7f3f

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