MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier as malicious. It contains embedded JavaScript, which is a common technique for executing malicious code within PDFs. The document also features a link farm pointing to compromised WordPress upload storage, suggesting an attempt to host malicious files or redirect users to phishing sites. The presence of these elements indicates a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 7
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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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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 http://dom-nenilovo.ru/wp-content/plugins/super-forms/uploads/php/files/0bc11816cd41ba824317741d6f6b346c/dasanizima.pdf
- http://condosworld.com/abisol1/userfiles/files/28697970944.pdf
- https://konferencii.ru/js/ckfinder/userfiles/files/588611786.pdf
- https://hacunamatata.ru/wp-content/plugins/super-forms/uploads/php/files/e4a80ff653d9e2552009c1172569374b/lupiboga.pdf
- https://smilepath.com.au/wp-content/plugins/super-forms/uploads/php/files/237eb85c694f94afaac60c166bfb1ca1/kumazudum.pdf
- http://abwessex.com/uploads/files/ronedetasufasodufojuk.pdf
- https://cvenhancer.com/wp-content/plugins/super-forms/uploads/php/files/5ab1070867a1433ef1b6adccdae168ad/jejofadowufogakelovizol.pdf
- http://www.rec39.ru/wp-content/plugins/super-forms/uploads/php/files/f4a92d7ed75fbfc568ed46457a035e8a/bopuz.pdf
- http://www.orarestauratorisaf.it/wp-content/plugins/formcraft/file-upload/server/content/files/160a74735f4189---befes.pdf
- https://em.heephong.org/ethnicminorities/cmsadmin/ckfinder/files/xadafumixulubitazip.pdf
- https://www.geo-decouverte.com/ck/ckfinder/userfiles/files/14323794362.pdf
- http://aircond.md/upload_fck/file/99608868409.pdf
- http://kuresi-kaitori.com/upload/content_pic/files/16621779791.pdf
- https://chaletsuenodesol.de/files/kilugi.pdf
- https://www.engltg.com/wp-content/plugins/super-forms/uploads/php/files/d585656f5c57e78ec63e5a68ce2a93c0/76789618673.pdf
- https://flour.co.uk/ckfinder/userfiles/files/15556953819.pdf
- https://bitree.ru/ckfinder/userfiles/files/junedekafaxowejivakife.pdf
- http://rsst77.ru/upload/files/57062067643.pdf
- http://giasuminhtam.com/Images_upload/files/28768804210.pdf
- http://vejwun.cz/images/90662054866.pdf
- http://www.k-24.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ddd2a375f0---36245054457.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=structure+and+uses+of+phenol+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_off0000d170.bin94b0d80eb0cd65a4184bfe90f40a26cd1a5a04f0a7276d673a42ddbf2b073c1c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD170 | 10800 bytes |
font_01_sfnt_off0000ea40.bin210855d101efa033f710c0bf4abc8c1394510da3d00f4c8a6cade61de9a765fd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA40 | 18772 bytes |
font_02_sfnt_off00011b7f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B7F | 16792 bytes |
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