MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
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 URLs pointing to compromised CMS uploads and disposable hosting, likely serving as a distribution point for phishing or malware. The presence of external URIs and link farms suggests an attempt to redirect the user to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
Heuristics 6
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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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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://drafthe.ru/uplcv?utm_term=numbness+in+head+and+face
- https://accuratesearch.com/userfiles/file/pulukasafavofudi.pdf
- http://www.mkkdigital.pt/wp-content/plugins/formcraft/file-upload/server/content/files/160a66f826af4f---lofisiwapizunixus.pdf
- http://xedaptap.net/userfiles/file/40933506528.pdf
- http://szalkasszorutacskok.hu/app/webroot/files/content/files/7951007123.pdf
- http://alexlunacoach.com/img/editor/file/verurupibonew.pdf
- https://www.ideaklinikbursa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b225a1cfda---57345472634.pdf
- http://furkansigorta.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1608ce15c20a85---98574713100.pdf
- https://www.frankreich-ferien.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160a13d3c5c667---81698261209.pdf
- https://glasschneider.koeln/wp-content/plugins/super-forms/uploads/php/files/l1nvd5vphrmt8o52r23b20ufd2/nofeneneveberexo.pdf
- http://beautybybelief.com/admin/images/file/286562009.pdf
- http://ciaooo.ru/uploades/userfiles/file/wupilekurusajamefexib.pdf
- https://nutritie-metabolism-sanatate.ro/app/webroot/files/userfiles/files/32740161961.pdf
- http://www.thaiboat.net/image/upload/File/80624113024.pdf
- http://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16090a7d9a9ef0---sinisifokejita.pdf
- https://dentinale.eu/wp-content/plugins/super-forms/uploads/php/files/fe4ac22dcb3b84e9ce9addb3f2139203/namawojukanifujakosekibod.pdf
- https://wurstfargo.com/wp-content/plugins/super-forms/uploads/php/files/00dee72e4275c96674a24a197d009a9c/9967939958.pdf
- http://stopasbestos.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16073f1dee2e05---mokesexanudoguz.pdf
- http://gostium.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c521ec5beaa---30108272565.pdf
- https://spherule.org/wp-content/plugins/super-forms/uploads/php/files/2a75837040d6b3c75a22746758c208ec/4443223088.pdf
- http://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/160d1ced408578---legelipepimil.pdf
- https://anmoul.com/userfiles/file/98762317629.pdf
- https://www.northamericatalk.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c2a4d2dd02---nuletogivafexavuz.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_off0000e553.bin57b841a26e261c76dce28e762fe83165449061ae6b8eace8cca0c36fc9218bf3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE553 | 16396 bytes |
font_01_sfnt_off00010fd4.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FD4 | 16792 bytes |
font_02_sfnt_off000127eb.bin5687535f8dcc9b90d2e4bdd3e1b36a20dd8ed36d26eeff7738e25d4071f3c61c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x127EB | 10592 bytes |
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