MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'https://ttraff.ru/pify?keyword=fur+elise+music+piano+sheet'. This suggests a link farm or SEO poisoning attack designed to funnel users to malicious content. The ML classifier strongly supports the malicious verdict.
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/pify?keyword=fur+elise+music+piano+sheet In PDF document text
- http://files.priorityenvironmental.ca/uploads/1/3/2/7/132740415/poturowinu-pepurefeme-zomoxiru.pdfIn PDF document text
- http://files.bartowcountysaddleclub.org/uploads/1/3/2/6/132680789/sotalarikunir.pdfIn PDF document text
- http://libiz.bradfordscholarship.org/uploads/1/3/1/4/131407921/rinimise-pagiv-kilodule-xemub.pdfIn PDF document text
- http://wotupu.warriorhealingcampaign.org/uploads/1/3/1/6/131636725/1007532.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/1/0433/8765/0211/files/tolopolukurazi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3728/4762/files/sipazofetitasilaxukofalas.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8625/9100/files/35548366878.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8458/6909/files/teaching_strategies_in_math.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0555/8436/files/gasijawikugasupokak.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6114/8837/files/85140454142.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7188/9817/files/mibixebagusukog.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7463/4403/files/zibuvififuxog.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/7731/0366/files/successful_business_process_management_paula_berman.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/8397/1237/files/noligugobafusowuzos.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3835/1255/files/zorebip.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7241/4106/files/anaximenes_philosophy.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005043.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5043 | 5128 bytes |
SHA-256: fa7a1ee13b92d787c6fa95c2c3ea4cb8530a5a5b328d4764c5fcab0c0f79154c |
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font_01_sfnt_off00006187.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6187 | 15416 bytes |
SHA-256: 7ef7b9cc03281b27fee8434028c3b9fd29e3cc132d3f5d82e8ce901e7d6c08e3 |
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font_02_sfnt_off000090d9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x90D9 | 16100 bytes |
SHA-256: b59afbb2f683942213df284fd86cd9422ada0c5f1ffac7698db8c94a40390bc4 |
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