MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, with numerous embedded URLs pointing to compromised WordPress sites. These links likely serve as lures for phishing attacks or to distribute further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9922
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 https://laborke.ru/uplcv?utm_term=mvr+water+treatment
- http://saamfactory.com/wp-content/plugins/super-forms/uploads/php/files/6fd8f58eb79fff10f4478b5a7d0770d7/14430898413.pdf
- https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/028b48c93d234219b85355fad63f7de9/76872178507.pdf
- https://isosklo.cz/uploads/fonuneduti.pdf
- http://www.redactordecontenidos.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16074f7f19dd16---vudaxawimirujapeginilolul.pdf
- http://www.training4thefuture.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a1a2271a204---kakimopumasibig.pdf
- https://aimara-bg.com/userfiles/file/nufebabuwegegusikenigamef.pdf
- https://barcelonacentremedic.cat/files/galeria/files/toxune.pdf
- http://greatnice.club/updatefiles/file/savaziboja.pdf
- http://xboxheerlen.nl/userfiles/file/60586325079.pdf
- https://www.haievent.com/wp-content/plugins/super-forms/uploads/php/files/itv5f35dc8v4equmksiannlns8/pobotazasu.pdf
- https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b5c7ac16ace---96987277818.pdf
- https://myparrotfood.com/user_files/files/tukitizuka.pdf
- https://calldidocta.com/wp-content/plugins/super-forms/uploads/php/files/3513b6398a4ab09b89590e8e9d3694ea/67100557722.pdf
- http://www.grupohk.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609dad4d7e1bc---60770534247.pdf
- https://chmelo.hu/sites/default/files/file/bikipewujiwesifijo.pdf
- https://ljlconst.com/admin/images/file/rudediguv.pdf
- http://caribsplash.org/wp-content/plugins/formcraft/file-upload/server/content/files/16085ba7e49407---bogozesasipupojufe.pdf
- https://provisionsinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b09a9aa2389---guliw.pdf
- https://www.aserspa.net/wp-content/plugins/super-forms/uploads/php/files/5i271jiagk3st1g5v8jq3j9v4e/50212818005.pdf
- http://automsystem.com/UploadFile/file/20210508195946639.pdf
- https://caravanandre.it/wp-content/plugins/super-forms/uploads/php/files/f783839899b146d06017d51f5cc1f3c7/lafufabigo.pdf
- https://nmcs.ca/userfiles/files/gamexusas.pdf
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b738ded9be6---patobagevofixes.pdf
- https://freedomtampons.com/wp-content/plugins/super-forms/uploads/php/files/63498ad5c4f71a555287888f18906f4b/kutebemizur.pdf
- http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16091e266ef78c---91681950722.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e838.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE838 | 16792 bytes |
font_01_sfnt_off00010045.bin6a75b9764b76a2c6f7d152a8c92a24b73a4a005bccce61d7a5a969a6a70935e7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10045 | 1696 bytes |
font_02_sfnt_off00010862.bin25ef2e49086b69f924594ea0d1ec1534d202ca6f915a51720a76de0100f755a1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10862 | 9988 bytes |
font_03_sfnt_off00011e84.binfb3a31d95cadd3352020c88f26194ebf86c2059ef03e04e7dbec347ed2377745 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E84 | 17948 bytes |
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