MALICIOUS
156
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, specifically as a phishing trojan. It contains numerous links, many pointing to compromised WordPress sites, suggesting a link farm designed to redirect users to malicious content. The presence of multiple external URIs and a link farm heuristic indicates an attempt to drive traffic to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9786
Heuristics 6
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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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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://basyapiemlak.com/yukleme_klasoru/userfiles/file/13987870190.pdf
- http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089c88d96c65---65514764894.pdf
- https://lorenzonimmigrationlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606e458362e56---rukevodumefilanatubim.pdf
- http://hanhthien.net/uploads/file/rupelogulinifemegaxuvegu.pdf
- https://stegopackaging.com/wp-content/plugins/super-forms/uploads/php/files/3cupkn5cnifvhgqoa4u65paa9v/8319448268.pdf
- https://facades-et-traditions.com/actualites/file/66473254274.pdf
- https://bf-pomosch.ru/wp-content/plugins/super-forms/uploads/php/files/er7b0e56rhjarvk9luag2in7f3/28241697303.pdf
- http://gelikonline.ru/content/Files/burogokipeb.pdf
- https://www.lightingsolutionsal.com/wp-content/plugins/super-forms/uploads/php/files/412e0ab7460e49a46e658a706bd2d7a7/webuwojopelodaduwegabepik.pdf
- https://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c21f62d8bf---63012263334.pdf
- https://serwisnawigacji.pl/userfiles/file/43503780547.pdf
- http://www.studiolegalefusimorelli.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6bc96c4fb9---66682862428.pdf
- https://www.sacda.org/wp-content/plugins/super-forms/uploads/php/files/jls6v5524mjc212u6bkribfk10/rasaroved.pdf
- https://oknoplus-omsk.ru/wp-content/plugins/super-forms/uploads/php/files/3027a542ae7220f72acf1b1df614d6e6/70846210262.pdf
- https://digireg.com/upload/46429183175.pdf
- https://socialacademy.gr/wp-content/plugins/super-forms/uploads/php/files/e408d69c0707b0c6d874447fe3a40f05/tobosubalajatonorigagomuz.pdf
- http://discoveryenglish.org/wp-content/plugins/formcraft/file-upload/server/content/files/160d241ba1e9be---nevaxujo.pdf
- https://goez3.com/10005001208290177/ckfinder/userfiles/files/vixekodex.pdf
- https://www.aironface.com/wp-content/plugins/super-forms/uploads/php/files/cc9805ee57e526fb640b523295277c22/12944496044.pdf
- http://locthanhwindow.com/img_duhoc/files/funewogobejidupovawali.pdf
- https://spazmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f039b7a9f6---32031636079.pdf
- http://abpaluso.com/upload/file/xofurube.pdf
- https://aquariumfargo.com/wp-content/plugins/super-forms/uploads/php/files/626a96fec6fd2a6f9dee0667eafa1fa8/34518548033.pdf
- http://sakirnoopo.ru/wp-content/plugins/super-forms/uploads/php/files/4a5c6f3bdb51470c47fe51b755f409ae/sujazesotizogin.pdf
- https://stefandes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160809d669e152---sufot.pdf
- https://humantouchtranslations.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/160ab845a4d034---viwokewosuboguxi.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=hdd+low+level+format+tool+4.40+key
- 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000edd4.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDD4 | 16792 bytes |
font_01_sfnt_off000105eb.bin0e95de6142f04f68d01a51a3389b05782c3245ea390890d0a10e19609525bdec |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105EB | 10764 bytes |
font_02_sfnt_off00011ed0.bin7d15b2d6d265aaca51dda18faee70a1b8fa9d95ed54cb111fb0895789092f9ae |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11ED0 | 16312 bytes |
font_03_sfnt_off000134d7.bina6f4a58a16c9ab1c99eb0866498bbe517cf9c2e95c33021bcbb97562ce0fc4e3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x134D7 | 25500 bytes |
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