MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains an embedded URL that directs users to a phishing site. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or malware distribution. The document body, though heavily obfuscated, suggests a pretext of a 'letter of recommendation' to deceive the user into visiting the malicious link.
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://trafffe.ru/123?utm_term=letter+of+recommendation+for+nurse+practitioner+student
- https://cdn-cms.f-static.net/uploads/4420224/normal_5fad82906f7ee.pdf
- https://cdn-cms.f-static.net/uploads/4379498/normal_5faebf0940cfb.pdf
- https://cdn-cms.f-static.net/uploads/4401976/normal_5f9e6bccf0bc4.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static1.squarespace.com/static/5fc2e88de2fce462bc991529/t/5fc48ed3eaf37e3b642dfeba/1606717140811/puravavonedobiforapej.pdf
- https://uploads.strikinglycdn.com/files/8ffe6634-9800-4575-a389-90c22aebd414/suduzisozibidemamolef.pdf
- https://uploads.strikinglycdn.com/files/6ccd16db-cd05-43b1-b347-b7fbd0f8688a/73644147941.pdf
- https://uploads.strikinglycdn.com/files/4ea5879a-a25b-45bf-b6b5-b3ebcdc9146d/suleluginobabisedeza.pdf
- https://static1.squarespace.com/static/5fc30d185bcb0228a2907835/t/5fc524924e98326c02b5fea3/1606755475365/yorkie_chihuahua_mix_puppies_for_sale_near_me.pdf
- https://static1.squarespace.com/static/5fc0f186bda9c57a97be6d6b/t/5fc1baf93c6ccf69f39e8f75/1606531834439/9204409775.pdf
- https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd0101d334513fae42ab16/1606222081797/buwumipawig.pdf
- https://uploads.strikinglycdn.com/files/feb93409-ab07-4ffc-b5f2-1cb218148d3a/sunuxukoxijivaxo.pdf
- https://static1.squarespace.com/static/5fc556b8a3bf4b14abc694f3/t/5fc83fca8bd77935674a7183/1606959051489/real_bottle_shooter_game_mod_apk.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ccc7.bin39f08ed3b3e851faea18ee56cd17abb08175596805b2aee28db1584625d3aee9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCCC7 | 5212 bytes |
font_01_sfnt_off0000de70.bin66559290ea1c8e25e43217ef76588a89958113c76bcfb6fb7edf87ba17431754 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE70 | 10416 bytes |
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