Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f131d6abdaa47aa…

MALICIOUS

PDF

43.0 KB Created: 2020-08-03 11:35:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 295de33dc489a0d1bceb6c118c5d13e5 SHA-1: 1011d1b59c8794ed0a0b22a2e03fcd4815ffed3c SHA-256: 4f131d6abdaa47aa07b5f8271ddf73c3b1f6e2d8a7aae4b71beb8bcb39039233
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to Shopify domains hosting PDF files. The primary malicious link, 'https://ttraff.cc/pify?keyword=book+design+made+simple+pdf', is a known malicious redirector. This suggests a link farm or SEO poisoning attack designed to drive traffic to malicious infrastructure. The ML classifier strongly supports the malicious verdict.

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=book+design+made+simple+pdf In PDF document text
    • http://files.meenachinspections.com/uploads/1/3/1/3/131379591/nomewazenojebuzumed.pdfIn PDF document text
    • http://files.ikkarpublishing.com/uploads/1/3/1/3/131379296/cc9466f9841cd0.pdfIn PDF document text
    • http://files.hollyrihn.com/uploads/1/3/0/7/130740325/d71ea.pdfIn PDF document text
    • http://files.shioyacountryclub.com/uploads/1/3/1/6/131606815/jipofamevizi.pdfIn PDF document text
    • http://files.poehaku.com/uploads/1/3/1/6/131607239/ab7f23f.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/1/0432/2387/5746/files/39332328585.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1760/9122/files/pububolixime.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3724/5086/files/65526716721.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9386/8187/files/11328287844.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3863/0300/files/38573295437.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0168/3873/files/persistent_memory_cookie_clicker.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2182/0313/files/67993280102.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gamefidijuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9177/2063/files/55213552531.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mejiwevabefi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5836/2528/files/sample_fax_cover_sheet.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_off00006b4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B4B 5376 bytes
SHA-256: 7e1b52bd58c6b8e4e29cd7b6d21b6d7dba51a37502f1c59eff7c248238525c76
font_01_sfnt_off00007d91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D91 9836 bytes
SHA-256: 6dfe8e88d915039b1af40b376356c6a9190abd4825412c9c4fc075aad55f632a

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