Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f3544ea15e697d6…

MALICIOUS

PDF

71.1 KB Created: 2020-08-07 05:07:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a28579b25bf0837d6c1505011db90b3c SHA-1: 5b9f7c7acd010c61324eea5ab7765580bdd4c300 SHA-256: 7f3544ea15e697d6057aa8509463a9095dc19e59072ed85ccdc9b5f723a1280f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) that is flagged as malicious. The document body and heuristics suggest a lure for free downloads, likely leading to a phishing or malware download site. The presence of a large number of external PDF links, including to Shopify, indicates a link farm designed to attract traffic and potentially mask malicious intent.

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=acting+career+101+pdf In PDF document text
    • http://files.eyecareconcepts.com.au/uploads/1/3/1/3/131398560/dea64b0b25398.pdfIn PDF document text
    • http://files.michellecousins.com/uploads/1/3/1/8/131871717/dozagokawenok.pdfIn PDF document text
    • http://files.plattecountybacktoschoolfair.org/uploads/1/3/1/4/131453194/2489454.pdfIn PDF document text
    • http://files.orlandobathrooms.net/uploads/1/3/0/7/130738969/8679518.pdfIn PDF document text
    • http://files.capitalcitycrew.org/uploads/1/3/0/7/130740530/nekalulolobiguweved.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/1/0429/0831/9903/files/gta_iv_cheats.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2067/3433/files/41427712569.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2439/1071/files/gowun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3831/7471/files/lujurufaketi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1663/2992/files/dazapaberolale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0191/3244/files/19700428881.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6481/1927/files/17367336270.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6560/6301/files/words_ending_in_ness.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6004/4710/files/somuwivojowamoxes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7877/0076/files/vupoxowizejazenamiderod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8258/0130/files/49181765614.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 3

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_off0000d953.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD953 5296 bytes
SHA-256: cecf5de8355eab0e64fa10d0f9b3ffe86d774d9a831b20940b300e16c37f43d1
font_01_sfnt_off0000eb6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB6F 10580 bytes
SHA-256: 2561629f6cd6f0310ece06573bd7d9d139a9cf84ba274f2d847348b6b6d3de23

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