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 exhibits characteristics of a PDF link farm, with numerous external links, many pointing to static.usrfiles.com. The document body contains the URL https://ttraff.ru/wix?keyword=cart%25C3%25A3o+de+len%25C3%25A7o+desbravadores, which is identified as a malicious redirector. This suggests the PDF's primary purpose is to lure users to malicious sites.
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=cart%25C3%25A3o+de+len%25C3%25A7o+desbravadores
- https://static.usrfiles.com/ugd/e2f7e1_6ee478bb39014375a4c83e7f81b7add5.pdf
- https://static.usrfiles.com/ugd/73c254_d96a939f09ab4016ae3d78b8381b94a0.pdf
- https://static.usrfiles.com/ugd/5de1df_a4e1166f5b064c37aedd13d94ab425ad.pdf
- https://static.usrfiles.com/ugd/b8c837_606533199cfd48628d599bea8ca6794d.pdf
- https://static.usrfiles.com/ugd/e42ee3_86e4a4e52de541898b8525c04733bf2c.pdf
- https://static.usrfiles.com/ugd/b8c837_a6f240838ca84365b428cf9ff385a940.pdf
- https://static.usrfiles.com/ugd/49be48_2a45f293d719410f943e9a1b6645d6f2.pdf
- https://cdn.shopify.com/s/files/1/0429/9590/8761/files/jagodomitupubojuzafiwiwem.pdf
- https://cdn.shopify.com/s/files/1/0429/5317/9289/files/zibulivazatuwun.pdf
- https://cdn.shopify.com/s/files/1/0430/9912/7957/files/88817279788.pdf
- https://cdn.shopify.com/s/files/1/0431/8609/4248/files/nowod.pdf
- https://static.usrfiles.com/ugd/83e24f_ecd3852779ed420990549fbae320bcdd.pdf
- https://static.usrfiles.com/ugd/b8c837_25286c4c53824c33bd323f6e63ff0e53.pdf
- https://static.usrfiles.com/ugd/b8c837_1afed4af97774fb89ac2cd30adfd8427.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_off00007db9.bine7762c5e1ab397798cbeaeb2baecd3232fd72dba0c3b2b67fe3216a01b97d6c0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7DB9 | 5284 bytes |
font_01_sfnt_off00008f26.binb7ae42e19fbee781866605f57a6a900e784145d4b0f0f403e23b65947321dc6a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8F26 | 13328 bytes |
font_02_sfnt_off0000b59b.binb50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB59B | 4324 bytes |
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