MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to 'trafffe.ru', which is likely a phishing or malware distribution site. The document body, though heavily obfuscated, appears to be a lure related to educational materials, suggesting a spearphishing attachment attack vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
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://trafffe.ru/123?utm_term=mathematics+grade+7+textbook PDF link annotation
- https://static.s123-cdn-static.com/uploads/4461484/normal_5fc85c340823e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4427783/normal_5f99244c6b053.pdfIn PDF document text
- https://kizifafub.weebly.com/uploads/1/3/4/7/134714450/8955415.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe3094fa04221c71eb029b/1606299803328/cobb_county_police_records.pdfIn PDF document text
- https://s3.amazonaws.com/vuraradaso/1217972214.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc10ac260f2895dc1e8a19d/t/5fc4107afa04221c719ee813/1606684795219/rich_dads_guide_to_investing_book_free_download.pdfIn PDF document text
- https://s3.amazonaws.com/rupatojuko/mobdro_apk_premium.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e81738f1-e1f5-4fbf-b70e-fabd50262c53/filetype_xlsx_loginpassword.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc2bc52c6229360ecb8cfc0/t/5fc7e64a6d2b7b26a15223d0/1606936138952/crazy_cooking_tour_chef_restaurant_food_games_download.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc2e3a3c89e1c4b8fcb79a6/t/5fcd28b9eb18547f4b8d5e12/1607280832913/22800610787.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d24b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD24B | 5680 bytes |
SHA-256: f4b8e1d96e7d2447d2416502fb281bf0f66c87d5c54a3e2f14121dd28bac3020 |
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font_01_sfnt_off0000e585.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE585 | 10156 bytes |
SHA-256: 5d12492915faccdb082b773a5d9aee647c58584e7721b45916e3d98467671ebc |
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