MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for linking to known malicious redirector infrastructure. The document body and embedded links point to a large number of PDFs hosted on static.usrfiles.com, suggesting a link farm. The primary malicious URL is https://ttraff.ru/wix?keyword=derecho+mercantil+que+es, which likely serves as the entry point to the malicious content.
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/wix?keyword=derecho+mercantil+que+es
- https://static.usrfiles.com/ugd/64d889_8525f0f869a64a1e97992b1d6d01d9be.pdf
- https://static.usrfiles.com/ugd/b8c837_9e551826a3394389b3bcb35e37064770.pdf
- https://static.usrfiles.com/ugd/b8c837_7939f6dd75bb4f98a9d5adffb1a465b1.pdf
- https://static.usrfiles.com/ugd/b8c837_d824dd26c0dd4b38ba26063f9bb9d10e.pdf
- https://static.usrfiles.com/ugd/b8c837_c4d5a6f8fc114c37a8460fbd3a5fed15.pdf
- https://static.usrfiles.com/ugd/b8c837_13f1f27654484186bec9d0bded12f04d.pdf
- https://static.usrfiles.com/ugd/822ecd_4c1daf7564cc4430a56994ed10c3ff73.pdf
- https://static.usrfiles.com/ugd/f0e51d_34b57bb6d13d419694bd9ee6f611936f.pdf
- https://static.usrfiles.com/ugd/eaf48f_6f7611ef20374a3e85c4725bb579de89.pdf
- https://static.usrfiles.com/ugd/2ac701_c5bc792a74e047f6b6b901e144e50bb5.pdf
- https://static.usrfiles.com/ugd/dd4472_91b1b22b04bd43769217a33f697af04a.pdf
- https://static.usrfiles.com/ugd/b8c837_31301d09ce16491a85013ce73f17303e.pdf
- https://cdn.shopify.com/s/files/1/0455/6374/0325/files/bodybuilding_keto_diet.pdf
- https://cdn.shopify.com/s/files/1/0438/0078/9154/files/google_sheets_macro_recorder.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_off00007845.bin7975fb8eeee1258a074b19ab77b57a0e555fb80e85693296efe0ce7f42c89f74 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7845 | 5044 bytes |
font_01_sfnt_off00008940.binf522900a1847b7ab756ed3ec35b3c02950a2302eb1cc0cc8bbbe2a4c3bad4f44 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8940 | 11492 bytes |
font_02_sfnt_off0000ae77.binb50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAE77 | 4324 bytes |
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