MALICIOUS
150
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 of which point to Shopify domains but are likely part of a link farm to improve SEO for malicious content. One critical heuristic identified a direct link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=oxford+clinical+medicine+book+pdf'. The document body, though heavily obfuscated, contains this same URL, suggesting the primary intent is to redirect users to malicious infrastructure under the guise of providing academic resources.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 3
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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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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=oxford+clinical+medicine+book+pdf
- http://files.sophieewalterr.com/uploads/1/3/1/3/131381839/68d4bb2.pdf
- http://files.bigtimbercattle.com/uploads/1/3/1/8/131858592/544141.pdf
- http://files.numberworx.com/uploads/1/3/0/7/130739015/virazigobupemetilum.pdf
- https://cdn.shopify.com/s/files/1/0429/2545/7575/files/watercolor_portrait_techniques.pdf
- https://cdn.shopify.com/s/files/1/0427/9032/2342/files/aila_aila_nuakhai_sambalpuri_song.pdf
- https://cdn.shopify.com/s/files/1/0433/8044/1238/files/lire_journal_echourouk_algrie_d_aujourd_hui.pdf
- https://cdn.shopify.com/s/files/1/0431/4228/3432/files/86748272114.pdf
- https://cdn.shopify.com/s/files/1/0433/0127/3758/files/nitiw.pdf
- https://cdn.shopify.com/s/files/1/0432/3547/5624/files/kegajorexiduronokagapuxo.pdf
- https://cdn.shopify.com/s/files/1/0435/6676/0095/files/maxomasazaxavufilotu.pdf
- https://cdn.shopify.com/s/files/1/0452/0479/9639/files/lewafokuburapakipu.pdf
- https://cdn.shopify.com/s/files/1/0431/0528/8352/files/56396115027.pdf
- https://cdn.shopify.com/s/files/1/0433/0727/0297/files/familia_boletaceae.pdf
- https://cdn.shopify.com/s/files/1/0434/0052/8033/files/95931527372.pdf
- https://cdn.shopify.com/s/files/1/0438/1048/8477/files/60504489338.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000073ee.bin679976d2933271af83f7cad372f2afb4d392c197f75e554d3fc399b5b579cc24 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x73EE | 5132 bytes |
font_01_sfnt_off0000853b.bin62acc3ce99e794d75e1b5347a4e61d3674fbac743559b341d16c64a42601240c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x853B | 9540 bytes |
font_02_sfnt_off0000a5c6.bin7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA5C6 | 4324 bytes |
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