MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of multiple heuristics related to PDF link farms pointing to compromised CMS uploads and disposable hosting, combined with a 'download button' lure, suggests a phishing or malware distribution scheme. The embedded URLs likely serve as entry points for further malicious activity.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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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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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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://wastran.ru/uplcv?utm_term=medical+report+example+pdf
- https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b9cf9330514---71313638460.pdf
- http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16081890725268---disegulo.pdf
- https://gk-termopanel.ru/wp-content/plugins/super-forms/uploads/php/files/2fd95872ceb5c0ec2a77525ecd8f012f/zerezakedusixanisonub.pdf
- https://www.edutechusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160860ea182969---97440936264.pdf
- http://leebyenghun.com/new/upload/board/files/81285327476.pdf
- https://lisacutler.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c1a996264e---26570014860.pdf
- http://artecgroupservices.com/imagenes/file/24158877699.pdf
- http://www.argentum.com/wp-content/plugins/super-forms/uploads/php/files/9carte5f3k2h4ql6hb3fb2cqg4/suner.pdf
- http://krukewittfarms.com/userfiles/file/68691259843.pdf
- http://baominhlabors.com/upload/files/pumemorixijuxiwetijixapak.pdf
- https://www.costaverde.it/wp-content/plugins/formcraft/file-upload/server/content/files/1606d9f66715bd---bukozoxa.pdf
- http://alt-1c.ru/userfiles/file/pixedipirenejokifow.pdf
- http://oneself.pro/wp-content/plugins/formcraft/file-upload/server/content/files/160a7ad95c2ed3---63688441847.pdf
- https://djhelaly.com/wp-content/plugins/super-forms/uploads/php/files/dc1cd386a2fafcf1e6c83a0ea8327d8b/9509797734.pdf
- http://www.gametimecatering.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091768e3229e---vinekonematijatovage.pdf
- https://ajwatravel.com/wheelmarine/userfiles/file/54158078985.pdf
- http://anaminfo.com/attachfile/file/17888371018.pdf
- https://www.shopveriamici.com/wp-content/plugins/super-forms/uploads/php/files/t95u1rtkddnljp9f7421dlnm7h/mojulokebabuwumu.pdf
- http://gingerwooddesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b2fdc9c2da---8471675124.pdf
- https://macleanpinesdrivingschool.com.au/wp-content/plugins/super-forms/uploads/php/files/60e63c040065551ad1c49cd2b4199e12/dibufomojitakit.pdf
- https://5uempat.com/contents//files/palovuxifanegimiforaki.pdf
- https://cortopolis.ar/userfiles/file/geluxararowolorubekisuz.pdf
- https://intelean.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609cd6d31bafc---14125074001.pdf
- http://gennarimaq.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16091573cc3372---10816999357.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_off0000ec93.bin4f8248aa9544096e866bf03de7210025605e3e87a15ed7e379079d4a9bf2d1c3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC93 | 10604 bytes |
font_01_sfnt_off000104c6.binac4085351aad3e0ff24dd5bcb5b217217f25fa7a5fdfd9696f6163937dd3ac2e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104C6 | 17080 bytes |
font_02_sfnt_off0001313e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1313E | 16792 bytes |
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