Malicious PDF — malware analysis report

Static analysis result for SHA-256 c461e45c79b0809a…

MALICIOUS

PDF

44.1 KB Created: 2020-09-18 10:56:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 02d6d649862afca398bd836ef5c51372 SHA-1: 573f39b9f4359a5fa2b0aeb1684cd15e69eb7df1 SHA-256: c461e45c79b0809a9dfbf25071e7fb807f2e758398467cde8e873f17172d5634
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a high number of embedded links, many of which point to a redirector service. The primary malicious URL identified is https://ttraff.club/wix?keyword=ap+physics+c+equation+sheet, which is likely used to deliver a malicious payload or redirect to a phishing site. The ML classifier strongly indicates maliciousness, and the PDF structure suggests a link farm designed for SEO manipulation to distribute malicious content.

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.club/wix?keyword=ap+physics+c+equation+sheet In PDF document text
    • http://megoki.flocrowcroft.co.uk/uploads/1/3/1/4/131407408/3316534.pdfIn PDF document text
    • http://bakisuso.troop109bonita.com/uploads/1/3/1/3/131398493/7688757.pdfIn PDF document text
    • http://files.vanfiretrust.org/uploads/1/3/0/7/130775828/2868592.pdfIn PDF document text
    • http://files.essentialoilsexpress.com/uploads/1/3/1/4/131407214/simixo_bakezenad_zapedelaxo_korofufedepuvo.pdfIn PDF document text
    • http://woraxufo.judymitcham-ahealingpresence.com/uploads/1/3/2/6/132681999/ce26c10bf8497.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://0581abed-77bf-4544-97e5-a214c1ddac5e.filesusr.com/ugd/948cea_55677392f72e42449cc4f9008b17e220.pdf?index=trueIn PDF document text
    • https://03476a00-9a69-437a-afb8-f789b562c90b.filesusr.com/ugd/d6b5da_8c1f36cbc03f44a0bee8f60f2f3b80eb.pdf?index=trueIn PDF document text
    • https://2e665acb-392f-4417-8346-21707f3e9e5f.filesusr.com/ugd/d2cc1f_ebada1a1ad74432db75d3d7111e36302.pdf?index=trueIn PDF document text
    • https://b937a1cb-d1cf-4a8e-91f0-06f4585c276f.filesusr.com/ugd/47b1e8_b7806e12ca984cc092feb982b5fbd4d0.pdf?index=trueIn PDF document text
    • https://22df86da-e6a4-4772-b328-2ef422e1c306.filesusr.com/ugd/c162b3_d678b1a5781040c6b8385a225d862bf2.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1988/7001/files/86666928864.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9488/2984/files/frozen_1_full_movie_hd.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0460/1747/8815/files/pevosojipa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3330/4993/files/38175249891.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_off00006f1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F1B 5108 bytes
SHA-256: f79a2e960c2c541c685bf5506398347425de9e1c2b67f97fb809ac8349793b82
font_01_sfnt_off0000808d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x808D 10292 bytes
SHA-256: 2a543483f1b18571105cc7e8baf63ec59d7935e0f85b2f73cfe3700385805a3f

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