MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by a critical heuristic for linking to known malicious redirector infrastructure. Additionally, it contains a link farm with numerous external PDF links, many hosted on cdn.shopify.com. The embedded URL points to 'https://ttraff.ru/pify?keyword=biometry+pdf+sokal', which is a known malicious redirector. The ML classifier also strongly indicated maliciousness.
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=biometry+pdf+sokal
- http://files.montagemama.com/uploads/1/3/1/3/131380511/19f20.pdf
- https://cdn.shopify.com/s/files/1/0428/3881/8982/files/tivimunemuver.pdf
- https://cdn.shopify.com/s/files/1/0440/4055/2598/files/anti_rabies_vaccine_schedule.pdf
- https://cdn.shopify.com/s/files/1/0433/0940/0214/files/12144731846.pdf
- https://cdn.shopify.com/s/files/1/0433/0032/3481/files/92029405246.pdf
- https://cdn.shopify.com/s/files/1/0440/2541/3782/files/50478704819.pdf
- https://cdn.shopify.com/s/files/1/0431/7567/4012/files/zijexowenurutibanix.pdf
- https://cdn.shopify.com/s/files/1/0438/8359/3880/files/study_of_periodic_table.pdf
- https://cdn.shopify.com/s/files/1/0429/8034/3961/files/meroruzadesijalijewodavur.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kurejala.pdf
- https://cdn.shopify.com/s/files/1/0454/0373/4184/files/storage_of_cereal_grains_and_their_products.pdf
- https://cdn.shopify.com/s/files/1/0445/8138/8452/files/mercedes_owners_manual.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_off0000432f.bin729cf7f26d000ab2379ffc5cb662bd07220632b8ccb761e01c693389f6f70d86 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x432F | 5404 bytes |
font_01_sfnt_off00005584.bin868a2809700783f739acab4d20ffeba089f8ee6aa7eeed32b0d03bb05f2aab2b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5584 | 9416 bytes |
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