Malicious PDF — malware analysis report

Static analysis result for SHA-256 40ce2160c73cb33a…

MALICIOUS

PDF

37.6 KB Created: 2020-08-26 14:31:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 61b56245236fe6ef93bebe4404a121eb SHA-1: ebd3b26025b3ec02b0c64e01c59f230dd888d226 SHA-256: 40ce2160c73cb33a6e74302f30a8a22f02b91c0d375380d1351c6011ba91151b
194 Risk Score

Malware Insights

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

The PDF file contains embedded links that point to a known malicious redirector, ttraff.com, disguised with a keyword related to a Yamaha Raptor 660 manual. This suggests a phishing or scam attempt to redirect users to malicious content. The document body, though heavily obfuscated, contains the URL and the keyword, reinforcing the lure. The presence of numerous other links to Shopify domains, while marked as benign, indicates a pattern of link farming, likely to improve SEO for the malicious redirector.

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/pify?keyword=yamaha+raptor+660+manual In PDF document text
    • http://wevino.animachristiretreats.org/uploads/1/3/0/7/130776008/4424f.pdfIn PDF document text
    • http://files.ez-caregiver.com/uploads/1/3/1/3/131383318/wugoso.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/1/0430/4424/1562/files/43469654433.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7192/1571/files/sixusebiwebugaledesebivi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5294/8901/files/tafijoner.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2601/2567/files/saralazewapedidezilozudi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3278/0701/files/bufazuwop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3588/5725/files/45430598944.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3251/8549/files/65806555907.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8475/9711/files/21275977570.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0512/4516/files/83672989884.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9746/3715/files/runescape_misthalin_mystery.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/50398535586.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_off000053f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53F9 5140 bytes
SHA-256: c55896f17336cc5408cc4d5edc1e82a90d08b8727ac3c4945ac56a45f15ff0f2
font_01_sfnt_off00006544.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6544 10388 bytes
SHA-256: 602351c2c5496e5b7f01c87f4e20a413f25bb538831c1a023e99d2dc085ed7a6

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