Malicious PDF — malware analysis report

Static analysis result for SHA-256 352d42eef5bdcd2d…

MALICIOUS

PDF

57.4 KB Created: 2020-08-24 04:46:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3394272192144673754a1f133582a8ad SHA-1: 8d73b4fb9ad0d43bade930ae6159f597f716d0e2 SHA-256: 352d42eef5bdcd2d583c06ce6a859d5de6da438a820f4416c67fd372195badf4
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, also contains this URL, suggesting it is the primary lure. The presence of numerous other PDF links, many hosted on Shopify, indicates a potential link farm or SEO poisoning tactic to obscure the malicious destination. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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=alisha+chinai+songs++320kbps In PDF document text
    • http://files.capedingo.com.au/uploads/1/3/2/8/132815365/ruvefugegobodoxezi.pdfIn PDF document text
    • http://botevefev.cosmicsistershop.com/uploads/1/3/2/7/132712237/4c47ecdde78.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/1/0429/5042/6787/files/treatment_guidelines_for_strep_pharyngitis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1423/4016/files/kodomilurarezarivafamovaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9763/7535/files/68960109817.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9377/8837/files/90052313630.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kevaziretojigadogikoranab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9005/9157/files/gta_vice_city_crack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5920/6558/files/animal_farm_full_text.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 7

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_off00009480.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9480 5732 bytes
SHA-256: e1c71d15b3e35da93ad2967a839ab66ab918f2f08eee93d8c147bd687ec06540
font_01_sfnt_off0000a7e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA7E3 15612 bytes
SHA-256: 127dd42e687ec28cf75147c4e7efbe427949f55f94aff1947b472e4c94da73a6

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