MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF document contains a malicious redirector link, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the URL https://ttraff.cc/pify?keyword=ejercicios+de+caida+libre+resueltos+pdf+3+eso, which is also flagged as malicious. The PDF_SEO_LINK_FARM heuristic indicates a large number of external links, suggesting a link farm for SEO manipulation or to distribute malicious content. The ML classifier strongly supports the malicious verdict.
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.cc/pify?keyword=ejercicios+de+caida+libre+resueltos+pdf+3+eso
- http://files.lifelonglearningpath.com/uploads/1/3/2/6/132681212/3c91b44480756.pdf
- http://files.demirandaguitar.com/uploads/1/3/1/8/131871690/fokodibavuf_zogovisum.pdf
- http://files.ahhness.com/uploads/1/3/1/4/131437477/c6323cbb093f3.pdf
- https://cdn.shopify.com/s/files/1/0434/0993/2440/files/ford_f250_repair_manual_online_free.pdf
- https://cdn.shopify.com/s/files/1/0430/7868/0730/files/85845658332.pdf
- https://cdn.shopify.com/s/files/1/0439/2235/8427/files/2500628829.pdf
- https://cdn.shopify.com/s/files/1/0436/9930/6648/files/fojedodufanapatibax.pdf
- https://cdn.shopify.com/s/files/1/0429/7441/2949/files/53035505239.pdf
- https://cdn.shopify.com/s/files/1/0439/0020/7272/files/44059167588.pdf
- https://cdn.shopify.com/s/files/1/0430/1688/0281/files/manual_air_ride_valves.pdf
- https://cdn.shopify.com/s/files/1/0433/4731/2789/files/37503125133.pdf
- https://cdn.shopify.com/s/files/1/0437/0441/8455/files/65393434623.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_off00006641.bin2996c28099b2778ce96158668a331c3830861bb39a3e80c9df443a74c777f1a7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6641 | 5260 bytes |
font_01_sfnt_off00007837.bin679aa6684eb82a2237f6c7d25e974a0c2e87fbcc18ce60f67424232f60392902 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7837 | 11076 bytes |
font_02_sfnt_off00009c2c.binb50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9C2C | 4324 bytes |
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