MALICIOUS
150
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=soma+e+produto+de+raizes+exercicios+resolvidos'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many of which point to 'static.usrfiles.com'. The document body, though heavily corrupted, contains the same redirector URL and appears to be an attempt to disguise the malicious intent with educational material. The ML classifier strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 3
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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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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/wix?keyword=soma+e+produto+de+raizes+exercicios+resolvidos
- https://static.usrfiles.com/ugd/b8c837_5a0b90329eae4c639336662e90f90bb4.pdf
- https://static.usrfiles.com/ugd/b8c837_086d2536974f4e30a82be9872f82ec84.pdf
- https://static.usrfiles.com/ugd/b8c837_794720be077449388cd86d87b8f395c3.pdf
- https://static.usrfiles.com/ugd/b8c837_d8c547cbf4ad45df9bf4e94c2775807b.pdf
- https://static.usrfiles.com/ugd/b8c837_f309e07050e64ca5be621a630ff9834f.pdf
- https://cdn.shopify.com/s/files/1/0431/6001/0912/files/zufexevul.pdf
- https://cdn.shopify.com/s/files/1/0429/2316/3801/files/fantasy_football_draft_picks_cheat_sheet.pdf
- https://cdn.shopify.com/s/files/1/0430/7861/5189/files/42322031224.pdf
- https://cdn.shopify.com/s/files/1/0465/5421/8646/files/71323110358.pdf
- https://static.usrfiles.com/ugd/b8c837_9f19f3f709c24505b265ac7d5dbada1b.pdf
- https://static.usrfiles.com/ugd/b8c837_204a331194f440838d8c927d2a2c01f9.pdf
- https://static.usrfiles.com/ugd/b8c837_a70d14e4017c4f3e9b472845f8e7e8a8.pdf
- https://static.usrfiles.com/ugd/b8c837_a054bf630dbb487b9970bd36e6cc5104.pdf
- https://static.usrfiles.com/ugd/b8c837_7c4e3d1d74f947e1ae4d67666191a89f.pdf
- https://static.usrfiles.com/ugd/b8c837_934e2118687c44ffa2d7841d581f7731.pdf
- https://static.usrfiles.com/ugd/b8c837_21cd1a1bc45d4a549ae9719109255894.pdf
- https://static.usrfiles.com/ugd/b8c837_84925f555f054e87bcf7bacf60537fb1.pdf
- https://static.usrfiles.com/ugd/b8c837_590d85f9c2764883a46befadc1e87379.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_off00005911.bin8ba054ddbdb5afee769bcb4faf3831d70e8ef74db141b928a02d5b623123ba10 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5911 | 5500 bytes |
font_01_sfnt_off00006bb7.bin17d70ac0d0a53662d372d790fa892dba43b2313822595151cc205ec348c48b7d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6BB7 | 15144 bytes |
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