Malicious PDF — malware analysis report

Static analysis result for SHA-256 41b7dc4eed0497af…

MALICIOUS

PDF

40.3 KB Created: 2020-09-03 11:40:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1e36e8be2eed3d4ce030fb691f79b026 SHA-1: 25c87ba721925f1b1836a45827edd9be2715faa3 SHA-256: 41b7dc4eed0497afb5cd84c598823aaeb3cab810eaaa9ddff3228e4792c02076
194 Risk Score

Malware Insights

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

The PDF document was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL, https://ttraff.com/wix?keyword=d%2526+g+shoes+size+guide, is the primary indicator of compromise, suggesting a phishing or malware distribution attempt.

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/wix?keyword=d%2526+g+shoes+size+guide In 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/1/0434/7219/1641/files/8324459372.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5511/9520/files/wamobirale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2630/0575/files/80469770294.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/436160_a0b636247ff84ab683a5c49a46ce7009.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b4609a_81d44c4c10964c2cbf2b84986cfcba0d.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/4ae4db_e25990e139814331a3562f5a376983d9.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/529dbf_6379fa81fddb43a0b1e004347800a1f1.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b916f4_96e27241608b4d549272b2cb5a758fb9.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0668/1497/files/34889659182.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6770/3457/files/suzenupubuwavubininopi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7540/3929/files/49139071681.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1664/0917/files/tekejevuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0865/4492/files/construct_a_cladogram_worksheet_answers.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_off0000612a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x612A 4156 bytes
SHA-256: 4137e011fb50e940388b7a91a31e36f70741d8ce55ef6fbc7fb0314564e06879
font_01_sfnt_off00006f5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F5A 11108 bytes
SHA-256: 3a741367944441c539e4eb138b8b059bba8ab6747a2b444af64bcf008a87fa7e

Open this report in the interactive analyzer, or submit your own file for analysis.