MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous external links, many pointing to disposable domains, and exhibits characteristics of a link farm. A critical heuristic indicates a 'Clipboard command execution lure,' suggesting the document instructs users to copy and paste commands into a shell. This, combined with the ML classifier and ClamAV detection, strongly indicates a malicious intent to download and execute a second-stage payload. The presence of multiple suspicious URLs further supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=windows+8+english+product+key PDF link annotation
- http://upservice.expert/admin/ckfinder/userfiles/files/47017873373.pdfIn PDF document text
- https://intekcanada.com/ckfinder/userfiles/files/sifuveruf.pdfIn PDF document text
- https://juniorclublivorno.com/sitonews/images_upload/files/78166563323.pdfIn PDF document text
- http://red-persimmons.com/upfiles/editor/files/58997426502.pdfIn PDF document text
- http://mgocsm.in/userfiles/file/wokuvajunoderijugisaw.pdfIn PDF document text
- http://bidwoodmachine.com/d/files/lilewagavupelul.pdfIn PDF document text
- https://smwebtechnology.com/arishayurveda.com/userfiles/file/90464803211.pdfIn PDF document text
- http://abwgulfport.com/uploads/files/96540283145.pdfIn PDF document text
- http://theydeserveastamp.org/wp-content/plugins/formcraft/file-upload/server/content/files/16132047da430d---22892285330.pdfIn PDF document text
- https://citronel.com/userfiles/files/pitotogavababoziratis.pdfIn PDF document text
- http://noithatdangcap.vn/app/webroot/uploads/files/16704882752.pdfIn PDF document text
- https://agrilaui.com/userfiles/file/55659355439.pdfIn PDF document text
- http://ssaisarang.com/ckfinder/userfiles/files/wimutono.pdfIn PDF document text
- http://uelzecht.lu/userfiles/files/fowefafer.pdfIn PDF document text
- http://www.awakohchang.com/image/upload/File/5116548079.pdfIn PDF document text
- http://southerncross-ex.com/images/blog/file/41067217107.pdfIn PDF document text
- http://vinaktv.com/storage/ckfinder/files/49386856978.pdfIn PDF document text
- http://ipea.kr/userData/board/file/85836331596.pdfIn PDF document text
- http://vhktn.at/images/content/files/robaganapomad.pdfIn PDF document text
- http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/161380152e586d---54221598994.pdfIn PDF document text
- http://kooijobs.in/ckfinder/userfiles/files/14194211350.pdfIn PDF document text
- http://autolubitel-irk.ru/userfiles/file/36035204900.pdfIn PDF document text
- http://osteriadelcampanile.com/userfiles/files/xusofodiwexe.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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d7f5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7F5 | 11224 bytes |
SHA-256: c7bda52e05646c8b9938fe77a776019d7f7aea0f962eb6c45db6d25a3ef545de |
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font_01_sfnt_off0000f212.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF212 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010a24.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A24 | 18332 bytes |
SHA-256: 39b4425c98deeaf140650b541be287c3b855fd8bf23da342043434b403474870 |
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