MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains embedded links that point to a known malicious redirector infrastructure, specifically 'ttraff.ru'. The document body, though heavily obfuscated, contains fragments that suggest a lure related to 'Aneurisma de la aorta pdf'. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' strongly indicates that the primary purpose of this PDF is to redirect the user to a malicious site. The ML classifier also flagged this PDF with high confidence.
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=aneurisma+de+la+aorta+pdf
- http://files.alimaclaurin.net/uploads/1/3/0/8/130874162/5008371.pdf
- http://files.summitsalesrecruiting.com/uploads/1/3/0/7/130775654/ropebosaledagipesata.pdf
- http://files.nducuwangugi.com/uploads/1/3/0/9/130969555/gimuviri-megatanizus-selusifo.pdf
- http://files.abruckx.com/uploads/1/3/2/3/132302780/niwesonawonomulema.pdf
- https://cdn.shopify.com/s/files/1/0438/1127/4914/files/73769655397.pdf
- https://cdn.shopify.com/s/files/1/0429/2381/9164/files/anatomie_et_physiologie_de_l_appareil_gnital_masculin_et_fminin.pdf
- https://cdn.shopify.com/s/files/1/0432/8115/4198/files/54540704492.pdf
- https://cdn.shopify.com/s/files/1/0433/3849/8206/files/69557117469.pdf
- https://cdn.shopify.com/s/files/1/0437/1673/9222/files/gavovunekuxuwe.pdf
- https://cdn.shopify.com/s/files/1/0429/3787/6639/files/72277310173.pdf
- https://cdn.shopify.com/s/files/1/0436/1184/8861/files/gta_vice_city_stories_cheats_psp.pdf
- https://cdn.shopify.com/s/files/1/0432/3436/1503/files/wureridopilekiri.pdf
- https://cdn.shopify.com/s/files/1/0434/6268/8918/files/99116026340.pdf
- https://cdn.shopify.com/s/files/1/0432/3642/5883/files/dibixisipidis.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_off0000d0b9.bin797ee475da514459fc7ea51d305aa0b4598c709c447705a8d2387111e56e4e29 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD0B9 | 5176 bytes |
font_01_sfnt_off0000e237.bin496ca8555e01a8da29333f4778808927d5b19581fcb9e19967179fbf28f004b4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE237 | 11296 bytes |
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