MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ML classifiers and ClamAV as malicious, with heuristics indicating it is a link farm on disposable hosting and contains a lure for clipboard command execution. The document's content, though heavily obfuscated, suggests an attempt to trick the user into executing commands, likely to download a secondary payload. The presence of multiple URLs, some hosted on compromised CMS platforms, further supports a malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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 http://lysfyyy.com/upload/files/74076791741.pdf In PDF document text
- http://agnieszkapawlik.com/userfiles/file/50182991061.pdfIn PDF document text
- http://mtegl.wsystem.sk/userfiles/files/revaveboxozalopogadubo.pdfIn PDF document text
- http://www.pattyn360.com/upload/forum/files/733567900.pdfIn PDF document text
- http://www.kevimotor-rock.hu/files/files/50349727327.pdfIn PDF document text
- https://hotnewsmd.deca.md/upload/userfiles/files/79511831468.pdfIn PDF document text
- http://sunpix.ru/img/lib/file/faluzopukuxo.pdfIn PDF document text
- https://skatrip.com/basefile/skatripcom/files/38197279929.pdfIn PDF document text
- https://www.toptalentusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135e7fe8038a---fezoxefejisaroka.pdfIn PDF document text
- http://inciboya.com/resimler/site/files/90196752575.pdfIn PDF document text
- http://startent.ru/SITE/files/editor/file/zewux.pdfIn PDF document text
- http://elfast.ru/userfiles/file/xuzobutovajobuwiki.pdfIn PDF document text
- http://delfosventures.net/userfiles/files/zogaxi.pdfIn PDF document text
- https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/161394fef90bd3---2639718682.pdfIn PDF document text
- https://www.karenlovelee.com/wp-content/plugins/formcraft/file-upload/server/content/files/161333dd10b628---jerebefaraminaseru.pdfIn PDF document text
- http://www.nbc.com.vn/ckfinder/userfiles/files/42659274238.pdfIn PDF document text
- http://sladkiy-ostrov.ru/userfiles/files/75271798712.pdfIn PDF document text
- http://profesniprukaz.cz/ckfinder/userfiles/files/ladojed.pdfIn PDF document text
- https://cosanuesa.com/componentes/editor/ckfinder/userfiles/files/44506870326.pdfIn PDF document text
- https://rmduncanrealty.com/userfiles/files/rozuti.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=how+to+run+apk+files+on+pcPDF link annotation
- 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_off0000d274.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD274 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ea8b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA8B | 10744 bytes |
SHA-256: 168554a96e9685e30a8d3dfe93f786603ac6c94c6264087e31ad5f1827513dfb |
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font_02_sfnt_off00010369.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10369 | 17720 bytes |
SHA-256: c312878b47bb4016e53633831c28b5fe0254e1019df288f12b34f9ae8cfd8264 |
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