MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample contains embedded JavaScript, which is a common technique for executing malicious code within PDFs. The PDF also functions as a link farm, directing users to multiple external URLs hosted on various domains, many of which appear to be compromised WordPress sites. These links likely serve as a lure to download further payloads or phish for credentials.
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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://vickers-electronics.co.uk/wp-content/plugins/super-forms/uploads/php/files/3af941c24803e0debb0320e71aa338e3/kiwinupewagizo.pdf
- https://sentinels.ro/userfiles/file/xovijuwovu.pdf
- https://andrejc.si/files/file/22290371969.pdf
- https://twinslock.com/ckfinder/userfiles/files/15662618501.pdf
- https://krono-original.vn/Images_upload/files/61716708190.pdf
- http://fine-cottage.ru/userfiles/files/99384937359.pdf
- https://teenvolunteerdallas.org/wp-content/plugins/super-forms/uploads/php/files/1fa1170dc1a78def3de6778e2ee27557/39875721061.pdf
- http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/rn2le6ppaesm7o40pun36iqnh2/fezuxanadaxogekosusezozav.pdf
- http://dush-kz.ru/uploads/fck/file/zomusixazo.pdf
- http://954move.com/clients/4890/File/57184462075.pdf
- http://banghetretruc.com/media/ftp/file/58839333844.pdf
- http://maduraicaterers.com/app/webroot/js/ckfinder/userfiles/files/jexijudobo.pdf
- https://xn--78-6kce7dfhb9dwb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/73a034f4671314f748a2ba84d6f27854/13059975667.pdf
- http://opuspoint.com/ckfinder/userfiles/files/towukuzodefatanejixukubed.pdf
- http://bebelino.ru/userfiles/file/48082907756.pdf
- https://gdr.co.il/wp-content/plugins/super-forms/uploads/php/files/020abfa0144b59c8dc543a6122bf8b41/64701974771.pdf
- http://gursakaryahukuk.com/images/file/2572708954.pdf
- http://jiendurancecoaching.com/ckfinder/userfiles/files/55917596950.pdf
- https://citrasas.com/ckfinder/userfiles/files/bifobijabesononeru.pdf
- http://consulcongress.it/uploads/assets/file/16553147587.pdf
- https://energooptima.hu/upload/File/99055442662.pdf
- http://marcobernini.it/userfiles/files/medifivololovogijivezawa.pdf
- http://xn----7sbezcba9a5aggb3j.xn--p1ai/ckfinder/userfiles/files/zemoz.pdf
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082d7431edf4.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=1+serving+of+almonds
- 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_off0000e845.bin87c54343a265e21c8923c76b2c2abae7606afa98f4b00b9cd825a334322ff8be |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE845 | 18632 bytes |
font_01_sfnt_off000118a2.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118A2 | 16792 bytes |
font_02_sfnt_off000130b9.bin047747a96a28fc30440824f8f125d9d4c7574c4be01bc1905836509d48909fff |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x130B9 | 10620 bytes |
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