Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd6f8f4991963a67…

MALICIOUS

PDF

43.2 KB Created: 2020-08-04 23:17:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3fcfbdfe3a2d45cf95d860a250ce6e3f SHA-1: dcca436fcf9e1ba80b2f0178d35e6cbb8410a30d SHA-256: fd6f8f4991963a674d15533e73a51c501fbcaa3ddb4bc7577b9f3430a00abbbe
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF document contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, forming a link farm. The primary malicious link, https://ttraff.cc/pify?keyword=catia+v5+assembly+design+tutorial+pdf, is a known malicious redirector. The document body, though heavily obfuscated, contains references to the malicious URL and appears to be a lure for a tutorial, likely to disguise the malicious intent of redirecting users 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.cc/pify?keyword=catia+v5+assembly+design+tutorial+pdf In PDF document text
    • http://files.mattparrottphilosophy.com/uploads/1/3/1/4/131407357/lesalato-terixigip.pdfIn PDF document text
    • http://files.artfromthepost.com/uploads/1/3/1/4/131438002/fomurot.pdfIn PDF document text
    • http://files.roboticsengineeringcte502.com/uploads/1/3/0/8/130813448/solixitesisenu-tunolelu-rinuwe-kuxuwaxajaneded.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9917/6612/files/gezojadokojeniwege.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4839/3112/files/60378625743.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6615/4394/files/16168362996.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2172/8930/files/26864665549.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0741/8273/files/pedir_preterite_conjugation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8491/3565/files/xitam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2840/4632/files/25991461371.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2269/6098/files/quakerstate_oil_filter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8613/5961/files/33576075592.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/16711599054.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5067/2033/files/gasurumuzigiribode.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8132/5987/files/24472881693.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 4

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_off00005b8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B8D 5692 bytes
SHA-256: 28e363460d67c3a113b24c45c2536456aa487f80f3a42fdb2cf48acfd4d722ea
font_01_sfnt_off00006edb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EDB 10256 bytes
SHA-256: 8d0cb11be838df90eb964b15a7fe7a61354e4c2ff7fc1a57110de0e7d0b21f9d
font_02_sfnt_off000091ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91CE 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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