MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a critical heuristic firing indicating a malicious redirector link to 'https://cctraff.ru/strik?utm_term=solutions+review+worksheet'. The ML classifier also strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of a malicious URL within the document body strongly suggests an attempt to lure the user to a compromised site, aligning with phishing or malware delivery tactics.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
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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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://cctraff.ru/strik?utm_term=solutions+review+worksheet
- https://cdn-cms.f-static.net/uploads/4372702/normal_5faa161358503.pdf
- https://cdn-cms.f-static.net/uploads/4426545/normal_5fbf36a545da4.pdf
- https://static.s123-cdn-static.com/uploads/4498678/normal_5fc81c9a7a8b0.pdf
- https://static.s123-cdn-static.com/uploads/4468259/normal_5fca9d81a5c6f.pdf
- https://cdn-cms.f-static.net/uploads/4495860/normal_5fc1e621d7088.pdf
- https://static.s123-cdn-static.com/uploads/4416143/normal_5fc87b2d45fed.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- https://uploads.strikinglycdn.com/files/76a32c21-1ccd-423d-88c9-af666312da86/monkey_go_happy_games_5.pdf
- https://s3.amazonaws.com/jenisozazewubo/ensayo_tecnologia_educativa.pdf
- https://s3.amazonaws.com/rawesaragegugar/fururesij.pdf
- https://uploads.strikinglycdn.com/files/8ebddf8d-d57a-4403-9551-70d60108c7c5/maryland_boat_registration_appointment.pdf
- https://static1.squarespace.com/static/5fc7a864fa9ecc3978a0c3e8/t/5fccb6d90ab5d62febeeca08/1607251673956/19155087583.pdf
- https://uploads.strikinglycdn.com/files/e774ead4-9373-4757-af8a-61ad1285f42f/68570313709.pdf
- https://uploads.strikinglycdn.com/files/f41ca16d-d47b-41a7-bf96-40ff43134b61/dawovunupazer.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/
- http://scripts.sil.org/OFL
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ac56.bin32501c82edb3bacce6c8f7eacc24e9544a85f1b62bd5c3d86d9568c3b9312402 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAC56 | 4764 bytes |
font_01_sfnt_off0000bc86.bin74ec85f03af4d5de80c5f10837c7b71b8ad7d534e14d7f06fdf42aa34ffc17cd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBC86 | 10068 bytes |
font_02_sfnt_off0000de0e.bina542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE0E | 4324 bytes |
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