Malicious PDF — malware analysis report

Static analysis result for SHA-256 476e1df8ff85bb5b…

MALICIOUS

PDF

41.2 KB Created: 2020-08-21 12:01:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 464128d16fe74c344b9ed88656b15474 SHA-1: bc451dae1e28c66d0ad7ab160f62c938e08f06f6 SHA-256: 476e1df8ff85bb5b63e367e20b3edd91ab92c650a61723debb93d63d359cc2bf
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, which is likely used to obscure the final malicious destination. The document also features a large number of embedded links to various PDF files hosted on Shopify, suggesting a link farm or SEO poisoning tactic to improve search engine visibility for malicious content. No scripts were extracted from this sample, but the presence of the malicious redirector and the link farm indicates a social engineering attempt to lure users to a harmful site.

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=spectrophotometric+experiment+lab+report In PDF document text
    • http://files.keithlundmark.com/uploads/1/3/0/9/130969370/2350077.pdfIn PDF document text
    • http://panuxufi.southwestpaddlecompany.com/uploads/1/3/2/3/132303035/5861421.pdfIn PDF document text
    • http://files.rmtappinportfolio.com/uploads/1/3/0/8/130813821/c974707c4a.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/1/0431/7426/4996/files/teposawigibu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9109/1875/files/76553251180.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6127/1959/files/paneguxusifogofenifada.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/4686/6839/files/59771056629.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1471/5549/files/28164065071.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9812/9059/files/vibujefolonu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/2527/9648/files/tcs_aptitude_test_question_paper.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4257/0402/files/vovakidesegovojerapanigiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0428/0481/files/fobipekaridekira.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1325/0972/files/vebenowukawulew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1312/8867/files/jeduwifo.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 1

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_off00006346.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6346 5304 bytes
SHA-256: 438fd15a2064f99e8083e2453cdcbedb6c54bcda8d4764de2a53eef51186fa11
font_01_sfnt_off00007528.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7528 10212 bytes
SHA-256: f5e49e3615f4dbe28367a40573ac2219fae264e0e49e5ec7c0e01712962c5ab7

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