MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a significant number of embedded links, identified as a link farm. The primary malicious URL, https://ttraff.ru/pify?keyword=liver+cirrhosis+pathophysiology+pdf, is flagged as a malicious redirector. The document body, though heavily obfuscated, also contains this URL and other benign-looking PDF links hosted on Shopify, suggesting a tactic to distribute malicious content or manipulate search engine results.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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=liver+cirrhosis+pathophysiology+pdf
- http://files.essentialquench.com/uploads/1/3/0/8/130874102/9503363.pdf
- http://files.creativestudio23.com/uploads/1/3/0/7/130738850/jonurisaf-tekodex.pdf
- http://files.paintingsbymarionlindsay.com/uploads/1/3/1/8/131857193/vemozapub.pdf
- http://files.whitmorestemclub.org/uploads/1/3/1/1/131164202/6d79aeb0b4a9db.pdf
- https://cdn.shopify.com/s/files/1/0429/8942/0695/files/97496225140.pdf
- https://cdn.shopify.com/s/files/1/0428/8364/5599/files/tipigakezejef.pdf
- https://cdn.shopify.com/s/files/1/0428/7866/4867/files/rudy_enb_skyrim.pdf
- https://cdn.shopify.com/s/files/1/0429/1526/6723/files/bams_1st_year_syllabus_2020.pdf
- https://cdn.shopify.com/s/files/1/0435/0109/3030/files/typing_practice_book.pdf
- https://cdn.shopify.com/s/files/1/0431/4028/4577/files/62602507473.pdf
- https://cdn.shopify.com/s/files/1/0430/4535/5682/files/star_wars_galaxies_trainers.pdf
- https://cdn.shopify.com/s/files/1/0431/2553/8970/files/45320085862.pdf
- https://cdn.shopify.com/s/files/1/0428/2833/3219/files/cuales_son_los_antibioticos_betalactamicos.pdf
- https://cdn.shopify.com/s/files/1/0434/5259/6374/files/60393324951.pdf
- https://medlineplus.gov/cirrhosis.html
- 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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000682c.binfb5beee22855199b1ebe371c08bd18d57fd49c88a097dbe3883cae6f813ed6de |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x682C | 5520 bytes |
font_01_sfnt_off00007af7.bin9af6103469eaf1d756111c8343b711844f4458703638cb1a89a5803671d83054 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7AF7 | 10032 bytes |
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