MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a significant number of embedded links, with a critical heuristic firing for a PDF link to known malicious redirector infrastructure. The document body and embedded artifacts suggest a lure related to 'learning of ms excel pdf'. The primary malicious URL identified is https://ttraff.ru/wb?keyword=learning%20of%20ms%20excel%20pdf, which is likely used for redirection. The presence of a large PDF link farm on Shopify domains, alongside other unknown URLs, indicates a coordinated effort to distribute malicious content or engage in SEO manipulation for malicious purposes.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF 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.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall 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.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF 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.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe 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.
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Embedded URL info EMBEDDED_URLOne 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.ru/wb?keyword=learning%20of%20ms%20excel%20pdf In PDF document text
- http://files.sonoranshadows.com/uploads/1/3/1/1/131164152/wupit.pdfIn PDF document text
- http://files.lonestarrxassistance.com/uploads/1/3/2/7/132710783/renuvebuv_sobuwiwi_vulorud.pdfIn PDF document text
- http://files.absolute-doors.co.uk/uploads/1/3/1/6/131606526/zagodigedolesofala.pdfIn PDF document text
- http://files.jillianabrownphotography.com/uploads/1/3/0/7/130738569/3436395.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/1/0439/7305/0526/files/86951047704.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9481/7445/files/98898771802.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/2852/7779/files/93873850831.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4352/0666/files/19223830524.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1492/1114/files/52841642628.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3401/0015/files/fraction_to_decimal_worksheet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9861/2636/files/bpsc_64_answer_key_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0708/0610/files/toletu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0447/9195/5607/files/bible_verse_generator.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0450/3057/2190/files/historia_del_cartel_en_mexico.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2990/5058/files/recette_de_cuisine_algrienne_gratuit.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4438/0578/files/lubeme.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0714/8185/files/aeonair_dehumidifier_manual.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
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005370.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5370 | 5484 bytes |
SHA-256: 38e11089b2d931d4651a31a797941288275ec4a7ba80d310619107ba23997a5d |
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font_01_sfnt_off00006613.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6613 | 10264 bytes |
SHA-256: 0c918cb1acd96cd4f890970d960ad5e8a0629022bdf8b138c18bd955f6946d89 |
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