Malicious PDF — malware analysis report

Static analysis result for SHA-256 f65d7e7850e98853…

MALICIOUS

PDF

39.3 KB Created: 2020-08-22 12:15:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 098d5010299bea5a5bd38e59687fe8a0 SHA-1: bd65837f034c558bad4aaff4f8ceabc508af7334 SHA-256: f65d7e7850e9885392e0fabae92604937cce80055a5396b32b7135c1a4747edf
194 Risk Score

Malware Insights

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

The PDF was flagged as malicious by an ML classifier and contains a significant number of embedded links. One critical heuristic identified a link to a known malicious redirector, 'ttraff.cc', which likely serves as a gateway to further malicious content. Another critical heuristic indicates a PDF link farm, with many links pointing to Shopify-hosted PDFs, suggesting an attempt to manipulate search results or distribute content. The document body itself is heavily obfuscated and contains the redirector URL.

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=literary+analysis+introduction+template In PDF document text
    • http://files.triggerindustriesinc.com/uploads/1/3/0/7/130775106/risod.pdfIn PDF document text
    • http://files.warnersroadtrips.com/uploads/1/3/1/3/131378776/9d7a4.pdfIn PDF document text
    • http://files.nicolewhitewellness.com/uploads/1/3/1/0/131069824/wowula.pdfIn PDF document text
    • http://files.clarkstonareafarmersmarket.com/uploads/1/3/1/3/131381363/fologek_jawowozewirebu.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/1/0430/0711/5423/files/2314140625.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8693/7253/files/90067172643.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lubogalevomiwubojaxijafax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7451/8178/files/kidowedozav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9036/9942/files/50_mcq_answer_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0646/6976/files/checking_information_chase.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0714/7162/files/64069249242.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 5

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_off00005c9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C9C 5260 bytes
SHA-256: 5ae0a11821b83b9023982f0e7b0751decb744e8c0ec1429eb8da8ccd9b94f66b
font_01_sfnt_off00006e6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E6F 10016 bytes
SHA-256: 10781ee62f4693c4fc22cc0114900d80ba60d2bd7e5079a55cbca9bd9ac6d963

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