MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links, many pointing to a redirector service (ttraff.ru) that is flagged as malicious. The document body, though heavily obfuscated, contains the malicious redirector URL and several benign-looking Shopify URLs, suggesting a link farm or SEO poisoning tactic to drive traffic. The ML classifier strongly indicates maliciousness.
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=large+treble+clef+staff+paper+pdf In PDF document text
- http://files.smartislandregion.com/uploads/1/3/1/4/131453588/nigududux.pdfIn PDF document text
- http://files.olghparish.org/uploads/1/3/0/8/130874676/ae458ef5fb71e79.pdfIn PDF document text
- http://files.katessocialmedia.com/uploads/1/3/0/9/130969188/6610323.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/1/0431/2724/2914/files/xinumabefinonug.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3945/7429/files/harley_davidson_parts_manual_free.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3907/1125/files/mokewemelazojefepajup.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4597/6224/files/kafasumotonedikoz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0708/0608/files/arms_warrior_pvp_guide.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9505/5777/files/piwufipanegetivoz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7719/8229/files/fefukisuzanopelu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/6309/6984/files/popuwajufo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9018/2304/files/54125677538.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/5102/2501/files/53634403324.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8117/9048/files/xiralopibamafi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5971/4971/files/tudagikaduxef.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/9486/6088/files/fimaditeb.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/8402/7806/files/judenofabesumoxa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2492/5347/files/97672892067.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
- https://savannah.gnu.org/projects/freefont/In PDF document text
- http://www.gnu.org/licenses/In PDF document text
- http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000607f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x607F | 6744 bytes |
SHA-256: 8187145963fbf8e0b7977f93bb9cbfc296fb812f6e2b6f40a3c8d31ca5a797a4 |
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font_01_sfnt_off00007166.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7166 | 5404 bytes |
SHA-256: 412ac6b872aca9e59ab6033d823a7b500388dcf3a95b3f6ebbd0d4b252aa143c |
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font_02_sfnt_off000083d4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x83D4 | 9752 bytes |
SHA-256: 3a8a156516fdd56912bdb2245dd629d1138d4635a0081c408d2f714b92542364 |
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