MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains embedded links, with one specifically pointing to a known malicious redirector. The document body, though partially corrupted, includes text related to 'Diabetes treatment guidelines nhs' and the malicious URL, suggesting a lure. The presence of numerous other PDF links, many hosted on Shopify, indicates a link farm strategy. The ML classifier strongly flagged this PDF as malicious.
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=diabetes+treatment+guidelines+nhs
- http://files.cacklebirdclassic.com/uploads/1/3/1/3/131398406/sapapivumatufuwa.pdf
- http://vamoji.partnerhc.com/uploads/1/3/2/7/132740309/powalafupumu.pdf
- http://files.waipahuintermediateband.com/uploads/1/3/0/8/130873907/75fdf78.pdf
- https://cdn.shopify.com/s/files/1/0435/6662/9032/files/bejosulokanunadibikil.pdf
- https://cdn.shopify.com/s/files/1/0433/7005/3784/files/fender_serial_number_database.pdf
- https://cdn.shopify.com/s/files/1/0433/6500/7509/files/66736503271.pdf
- https://cdn.shopify.com/s/files/1/0430/8434/9591/files/4304996013.pdf
- https://cdn.shopify.com/s/files/1/0427/5906/1670/files/nawegurumuzix.pdf
- https://cdn.shopify.com/s/files/1/0432/8656/0936/files/rukixedobuk.pdf
- https://cdn.shopify.com/s/files/1/0430/7727/1716/files/auto_tune_free_app_for_android.pdf
- https://cdn.shopify.com/s/files/1/0434/9997/8904/files/file_from_artifactory_using_ansible.pdf
- https://cdn.shopify.com/s/files/1/0434/5266/1912/files/30873228202.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000624f.bin1b7b20c7c8b9c5e51f9a6ddf8d61959014983c023f5fa787b1f734d1d428f8a1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x624F | 5376 bytes |
font_01_sfnt_off0000745c.bin140239f25542f72d25ee1ed1879214bf4b34d651dfb5cb8154c0087ff5e0a98d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x745C | 10064 bytes |
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