MALICIOUS
136
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
T1059.007 JavaScript
The PDF document contains heuristics indicating a remote support tool lure, instructing the user to install software like Ultraviewer. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for unauthorized access. The embedded URL points to a domain associated with this lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 5
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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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Remote-support tool lure high SE_REMOTE_SUPPORT_LUREDocument instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
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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://druttle.ru/123?utm_term=ultraviewer+for+linux
- https://cdn-cms.f-static.net/uploads/4486367/normal_603b6f7ad00ce.pdf
- https://cdn-cms.f-static.net/uploads/4495843/normal_60469e1cdd8af.pdf
- https://static.s123-cdn-static.com/uploads/4455876/normal_5fddd8dc9953f.pdf
- https://telidububiz.weebly.com/uploads/1/3/1/4/131452987/5589ae.pdf
- http://jerugujekema.getenjoyment.net/96181745900.pdf
- https://cdn-cms.f-static.net/uploads/4404738/normal_5fdb1fb29f6c6.pdf
- https://zubowosusotikip.weebly.com/uploads/1/3/1/6/131637009/pelogexuraxizop.pdf
- https://static.s123-cdn-static.com/uploads/4381738/normal_5ff4ff17353a6.pdf
- http://fidesuwuranotif.getenjoyment.net/kobufoxavonax.pdf
- https://cdn-cms.f-static.net/uploads/4445868/normal_603586a618979.pdf
- https://cdn-cms.f-static.net/uploads/4453730/normal_60171b4a461b1.pdf
- https://munulibur.weebly.com/uploads/1/3/4/5/134508804/8486ee343.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://34ea5197-a9e9-4ba5-99bb-a7dd7aeba98b.filesusr.com/ugd/234f58_27275a56f6bb41d88fee8331accfdefb.pdf?index=true
- https://fe2b84af-b373-48e0-a714-f820169e3fe9.filesusr.com/ugd/ed1d2e_9565f421e7bb4f5fadca51ba59140ba2.pdf?index=true
- https://7a3463bf-3117-47cc-940f-ad9d50d05675.filesusr.com/ugd/9f2514_4951db91943b426486ef0d29f7c08d8c.pdf?index=true
- https://s3.amazonaws.com/neporezofov/the_masque_of_the_red_death_theme_statement.pdf
- https://s3.amazonaws.com/gixawetopoli/darling_harbour_map_guide.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_off0000e90e.bin7e1b849f9b81a61c4ef702c5daee659d371665f93b7fcea968745ef67e59fe51 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE90E | 4792 bytes |
font_01_sfnt_off0000f98b.bind3d870592a91865062d6c01eb51c3345b53a5324ad2c0a906a7c83ce6c25f63c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF98B | 10888 bytes |
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