Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c261f96c2f32e5e…

MALICIOUS

PDF

33.8 KB Created: 2020-08-15 16:29:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 606ee1f6a159f614fa78523829638630 SHA-1: 495cfc32c5e74fd8b024e5758347b753888735d6 SHA-256: 6c261f96c2f32e5eea00036199c0ad5546606c3359bb67e4033de41271f8531e
194 Risk Score

Malware Insights

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

The PDF document contains numerous links to an SEO redirector, which in turn points to various PDF files hosted on Shopify and other domains. The primary redirector URL is identified as malicious. This suggests a phishing or scam campaign aiming to drive traffic through a link farm, likely to deliver further malicious content or lead users to fraudulent sites. No scripts were extracted, but the embedded URLs and heuristic firings strongly indicate malicious intent.

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.com/wb?keyword=thermo%20scientific%20iec%20cl10%20centrifuge%20manual In PDF document text
    • http://files.peterlynas.com/uploads/1/3/1/3/131383333/dovorami.pdfIn PDF document text
    • http://files.garysstorage.com/uploads/1/3/0/9/130969470/livuv.pdfIn PDF document text
    • http://ximegeb.annapike.co.uk/uploads/1/3/2/3/132302963/bibupij_ruzubi_vuxeximoxan.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/1/0433/7926/1590/files/zixomipefovepoxuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9975/0560/files/fajova.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4116/8283/files/89299094946.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4094/8903/files/56526828231.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4069/4684/files/6_to_binary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8886/2614/files/64891629331.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1711/7589/files/72623371230.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3199/3242/files/colour_blindness_chart_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7398/4919/files/pdf_digital_marketing_books.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_off00004660.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4660 5436 bytes
SHA-256: f913b36b1080dbce73d946ecdcec58812986c2c838355e5a78ad694f4fb214cf
font_01_sfnt_off000058bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58BB 9884 bytes
SHA-256: 9ab2947d5b3c4140d61bbd05e2073fc582573a7daf573a2e75b966c5de517ea6

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