MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or trojan threat. It contains numerous embedded URLs, many of which point to compromised CMS uploads and disposable hosting, suggesting a link farm designed to redirect users. The primary purpose appears to be directing users to external, potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://www.finanzanlagen-honorarberatung.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607297675dced---dokiwepalobatepisugukepuz.pdf
- http://say-international.eu/userfiles/file/39087785880.pdf
- http://panhongbo.com/ckfinder/userfiles/site_eachfun_com/files/76000437705.pdf
- http://abnicum.ru/files/file/rulidixuveguj.pdf
- https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/rsa7ngm6lve6ukojnie0bd1ff6/58397207491.pdf
- http://tovicetour.com/FileData/ckfinder/files/20210613_C6B9CC60F5DC377B.pdf
- https://vakukh.ru/wp-content/plugins/super-forms/uploads/php/files/a3928086e971d33569eff069fbee8bb6/duwefized.pdf
- https://lightspec.com/wp-content/plugins/super-forms/uploads/php/files/37cca4e718656098b7102a18162f968c/23885168684.pdf
- http://chistogood.ru/admin/ckfinder/userfiles/files/goniwibu.pdf
- http://strahovka66.ru/userfiles/file/dojeruxufijuda.pdf
- http://www.hptindia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7eb6d296ad---65528915414.pdf
- https://anakmeong.com/contents//files/22542391612.pdf
- https://alatheir.com/atheirwsfiles/file/92591494913.pdf
- http://1utilaje.ro/mm/file/44831790059.pdf
- https://mls.lighting/wp-content/plugins/super-forms/uploads/php/files/237d9c66b6df1f7b1c6d89e0ccd4fde4/22092338844.pdf
- https://mldom.xyz/web/img/podborky/files/7073837410.pdf
- http://theopenhouseclub.com/wp-content/plugins/super-forms/uploads/php/files/794d05ccbb39f676d2ea1b4ced4cf90a/75080542837.pdf
- https://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160761fe6cf69c---24720391948.pdf
- http://asesorialuishervas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d5d15f53d78---19276741041.pdf
- http://ecohort.com/userfiles/files/50862043963.pdf
- http://gearonlaw.net/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/22493962650.pdf
- http://siembra.me/uploads/files/41444319195.pdf
- http://wagnerpc.com/userfiles/files/dibogesolu.pdf
- https://harkakotony.hu/UserFiles/file/96490853612.pdf
- https://dlt-nkp.com/fileupload//file/daworapovalibuwuja.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=abacus+classes+near+me+now
- 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_off0000ea31.bin37916fb3ea3ebc5200fb151d07685d52977894a82a208630ec0871e0ebde99bd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA31 | 17716 bytes |
font_01_sfnt_off00011868.binb4a2c096bf15e6eb7753a68d7ba2716761bd14a45289fa77e5836bb3d307baf2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11868 | 10508 bytes |
font_02_sfnt_off0001306f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1306F | 16792 bytes |
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