MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/wix?keyword=vale+por+un+masaje+para+imprimir'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, some of which lead to benign content but are part of a larger infrastructure. The ML classifier strongly indicates maliciousness. The document body, though partially corrupted, contains the same lure text and URLs found in the heuristics, suggesting a social engineering attempt to redirect 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=vale+por+un+masaje+para+imprimir
- https://static.usrfiles.com/ugd/b8c837_2f340f68b26c4525b41f2e2b73214faa.pdf
- https://static.usrfiles.com/ugd/b8c837_15e476fb881f4d30ba11ea5f63b6d2c8.pdf
- https://static.usrfiles.com/ugd/b8c837_595645a606b9452192fa9041e802d36b.pdf
- https://cdn.shopify.com/s/files/1/0431/2681/6932/files/kannada_janapada_hadu_song.pdf
- https://cdn.shopify.com/s/files/1/0427/6797/4556/files/dinisuwunedibuv.pdf
- https://cdn.shopify.com/s/files/1/0434/1350/4156/files/encyclopedia_britannica_en_espaol_gratis.pdf
- https://cdn.shopify.com/s/files/1/0431/4310/2618/files/33653762825.pdf
- https://cdn.shopify.com/s/files/1/0434/1363/5226/files/10922378263.pdf
- https://cdn.shopify.com/s/files/1/0435/9297/4499/files/mofipelivurugidi.pdf
- https://static.usrfiles.com/ugd/b8c837_0de82c59e5914d0a97f4cb3f40464daf.pdf
- https://static.usrfiles.com/ugd/b8c837_17394378c2454fe4af15017234932237.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_off0000593d.binf351b5b69c087a2f374a78ba286844c56cd46417167510ba07c30dabc45286a8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x593D | 5004 bytes |
font_01_sfnt_off00006a25.bine9a5a1f6ed95b1e3669933bb00002ad32a1708c3e0b735191cad5e02368a6c7d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6A25 | 1800 bytes |
font_02_sfnt_off000072b3.binf060666d91f5294bae058f0c7236501d6966fdea5eea0ada94710ba5ea3929a8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x72B3 | 11048 bytes |
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