MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1059.007 JavaScript
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF document that contains a lure to execute commands via the clipboard, a common technique for initiating further malicious activity. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded URLs and link farm heuristics suggest the document is part of a phishing or malware distribution infrastructure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 7
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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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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://smidgel.ru/uplcv?utm_term=how+to+know+when+i12+tws+is+fully+charged
- https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609a9f2ece5e1---14839597510.pdf
- https://eyetracking.pl/userfiles/file/71853390413.pdf
- https://www.die-umzugsfabrik.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079aafc35979---gunizoga.pdf
- https://smarttactic.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607d10f35565d---bijilakafogituminawuvelu.pdf
- https://caravanandre.it/wp-content/plugins/super-forms/uploads/php/files/f00ea12d013bc4ba378c12dc7d28017b/sizupijudefabemix.pdf
- http://www.vivelamusica.es/wp-content/plugins/formcraft/file-upload/server/content/files/160722320ea455---noxefemoxasipatixibulel.pdf
- http://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092e86d0931f---54779953183.pdf
- https://rffsev.ru/wp-content/plugins/super-forms/uploads/php/files/8c872586af5547bdbbcb0ca0e8638715/78561414220.pdf
- https://petroblend.com/wp-content/plugins/formcraft/file-upload/server/content/files/160963adecfd42---9553634208.pdf
- http://www.hptindia.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072a1f0d41e9---98945003580.pdf
- http://ontheedgeofnow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092992839e39---45970437765.pdf
- http://3duct.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e426c5057b---fobununuvoma.pdf
- http://www.supercarrentalsofmiami.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a33a1de7c11---nujifi.pdf
- http://thunderstar.cn/userfiles/file/20210504140859166155990.pdf
- http://allamericannursing.com/userfiles/file/lopasanedaratibojazigebuf.pdf
- http://www.inhd.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16085fd8d9816d---8838632205.pdf
- https://alihuata.com/userfiles/file/44957953670.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- 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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000100a8.bin693cca43d10d1c46037e42ad43da76c26ccee926370961cd4e53e21e5a5b4bcf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100A8 | 5568 bytes |
font_01_sfnt_off000113a9.bind1d4d4a88641beba3517df5a2a9f3312dfa81b3e32a236bee01ba5d2797dcab5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x113A9 | 11976 bytes |
font_02_sfnt_off00013c79.bina542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13C79 | 4324 bytes |
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