MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a link farm designed to mimic search engine results for educational materials, a common lure for phishing or malware distribution. The primary malicious link, 'https://ttraff.ru/pify?keyword=cambridge+primary+mathematics+learner+s+book+1+pdf+download', is identified as a redirector to potentially harmful content. The document body, though heavily obfuscated, contains references to the search query and the malicious URL, reinforcing the attack pattern.
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=cambridge+primary+mathematics+learner+s+book+1+pdf+download In PDF document text
- http://files.jackiehelderdesigns.com/uploads/1/3/2/7/132712326/jupar.pdfIn PDF document text
- http://rujupiniz.ffontheclock.com/uploads/1/3/0/9/130969762/kiwuvumotobib.pdfIn PDF document text
- http://files.ncbbq4u.com/uploads/1/3/1/3/131398292/1689856.pdfIn PDF document text
- http://files.dylanlipke.com/uploads/1/3/2/6/132682070/nokogituwizox_remate_xipuwotesukes.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/1/0431/6492/6111/files/servidor_web.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5271/1586/files/voporepolaronovemozinovim.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6772/8279/files/69448489161.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1405/4300/files/31725161154.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9628/4062/files/nitrogen_cycle_ncert.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zorosibal.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6108/4322/files/9260964669.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/1639/4648/files/3080867625.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5494/0828/files/29915639233.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5325/9679/files/83498699641.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0618/8955/files/2557748618.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_off0000490b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x490B | 5924 bytes |
SHA-256: 2ce45d98c4a73b91eb0c3bcc3cf9f5ec8d7b95581c4aeaca5cd62b3f21863240 |
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font_01_sfnt_off00005d1d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5D1D | 13252 bytes |
SHA-256: b7d556d500ffede7ab53c1dc6831ddc4dc727572b0debc56651e67cdac07a056 |
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font_02_sfnt_off0000879b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x879B | 16204 bytes |
SHA-256: a95eff378c135b1ab40d10b3cd1da1bafbc07f86005f57898d079c90d712ddbd |
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