MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document contains embedded JavaScript and multiple external links, many hosted on compromised or disposable domains, suggesting a phishing or malware distribution attempt. The 'Clipboard command execution lure' heuristic indicates the document likely instructs the user to copy and paste commands, a common tactic to bypass security warnings and execute downloaded payloads. The ML classifier and ClamAV detection strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 8
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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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Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LUREDocument tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://medvor.ru/uplcv?utm_term=pou+hacked+apk
- http://mos-craciun-inchiriere.ro/fckfiles/file/84723008924.pdf
- http://hqshop24.com/userfiles/file/falefopidupen.pdf
- http://poslovniimenik.net/firme_data/files/11486173311.pdf
- http://synphabase.ch/upload/file/90063895759.pdf
- http://good163.cn/Uploadfiles/files/janaxe.pdf
- https://ooobelkom.ru/ckfinder/userfiles/files/32026878940.pdf
- http://al-bandak.com/userfiles/file/gibefatoja.pdf
- https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141781240035---27872587307.pdf
- https://oancora.com/ckfinder/files/6236785055.pdf
- http://tekizolasyon.com/ckfinder/userfiles/files/51392859915.pdf
- http://beijingteye.com/upload/files/72865304334.pdf
- http://voyagevietnamlaos.com/hinhanh/file/kafowapanaj.pdf
- http://hiniceshine.com/upload/67406088777.pdf
- https://imahima.xyz/js/ckfinder/userfiles/files/99922003562.pdf
- https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/16131d61d1400b---95659159993.pdf
- http://uhy-th.com/image/upload/files/fagenaxaluf.pdf
- http://cokhihoaiduc.com/uploads/files/4083567536.pdf
- http://mbfeed.vn/upload/files/82686167223.pdf
- https://beaumont-residence.com/wp-content/plugins/super-forms/uploads/php/files/2q4vtenun2fltt8joeg6h4cji4/9112709343.pdf
- http://uni-farm.pl/ckfinder/userfiles/files/92504438419.pdf
- http://tradotel-riviera.com/file/23377736262.pdf
- http://yey.uw52.com/upload/files/12542320822.pdf
- http://energywork.pl/userfiles/file/bubawogojiroma.pdf
- http://byecook.com/ckupload/files/renokuwotijud.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://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c6e0.bin5995a361009ccd8c66d48748f5c6fb204721ff4bdb440efb530909b91e56244f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC6E0 | 17500 bytes |
font_01_sfnt_off0000f488.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF488 | 16792 bytes |
font_02_sfnt_off00010c9f.bin9f2437d97085785f98ca7eecbff68c76075df71d85a0def30f72892fa7926c88 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C9F | 10196 bytes |
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