MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The file is identified as malicious by multiple heuristics, including a critical ClamAV detection and an ML classifier. It contains an embedded URI pointing to 'trafffi.ru', which is likely a phishing or malware distribution site. The document body, though heavily obfuscated, suggests a lure related to academic exercises, a common tactic for phishing or social engineering.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 4
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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External URI info PDF_URIPDF contains an external URL action
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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://trafffi.ru/strik?utm_term=exerc%25C3%25ADcios+sobre+fon%25C3%25A9tica+e+fonologia+com+gabarito PDF link annotation
- https://cdn-cms.f-static.net/uploads/4387412/normal_5fb3412f9566a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4379500/normal_5f91232356a4f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4405638/normal_5fa5618bd82b5.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4379046/normal_5f95d0423e96d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4386822/normal_5fa20f2663d92.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4421957/normal_5fa81a5b80849.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/31c0a88f-aaff-494b-9e4b-a822392147db/74473783011.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e9328b15-2d63-4213-b58c-5f51d2fe8ffe/luzukufupigatudu.pdfIn PDF document text
- https://s3.amazonaws.com/gazivemon/pefanituxuzuk.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9485bc43-eeda-4546-82e6-a85d3c0ad34b/jeff_cooper.pdfIn PDF document text
- https://s3.amazonaws.com/jevopemosod/11676233055.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/70bf3f85-b580-45ff-b66c-fd29da7ce187/tableau_if_statement_in_list.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d962.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD962 | 5564 bytes |
SHA-256: dbf4e3c6876411dc5a1c73056565ededf6713ad2677c9debc3c1470a3c575fcb |
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font_01_sfnt_off0000ebf2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBF2 | 1852 bytes |
SHA-256: 9a3d6b1cd88752a85bb9732455b524e4f556090a42a6d4e2b8af75343b37165f |
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font_02_sfnt_off0000f4c8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4C8 | 12920 bytes |
SHA-256: 784df79d06bbf5893ef863d2f1b1ff42941d62b79f4212a6303e088ed239ff9e |
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