MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains a link farm pointing to multiple compromised WordPress sites, suggesting a phishing or malware distribution scheme. The presence of embedded URLs and the nature of the heuristics strongly suggest this PDF is part of a campaign to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
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://ketchas.ru/uplcv?utm_term=st+michael%27s+sixth+form
- http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/160907a9ecc433---xelepis.pdf
- http://gancza.pl/userfiles/file/wixam.pdf
- http://driver-jazda.pl/upload/file/14605036208.pdf
- https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/160d4b463c4f09---jebupivomidawawu.pdf
- http://berbun.com/user_img/file/37928465716.pdf
- https://www.davidcosz.de/wp-content/plugins/super-forms/uploads/php/files/pqog41elcg2qag6kfk2mbl98pm/91615498543.pdf
- http://alt-1c.ru/userfiles/file/rujadevirotowisunowoz.pdf
- http://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160882ef03b0e2---90001489308.pdf
- https://willmarlakesarea2040.com/ckfinder/userfiles/files/28924903473.pdf
- https://rhagro.com.mx/wp-content/plugins/super-forms/uploads/php/files/f3cf0f267b0ae8099bc6202050423f97/vatujuxaso.pdf
- http://laweasy.kr/userfiles/file/wulatejatexasisusukaduzaw.pdf
- https://www.lenoir-elec.com/wp-content/plugins/super-forms/uploads/php/files/210rqube4meb4jo9aj08d4pnnh/97090503558.pdf
- https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16083057d1f48e---84441160950.pdf
- http://greenhousehotel.vn/uploads/image/files/9285375989.pdf
- https://sip7.pl/autoinstalator/sip7.online/wp-content/plugins/super-forms/uploads/php/files/43cab3f200ef5ebee23f2564a7c1306b/39599780918.pdf
- http://bioident.pl/photos_fck/file/boluk.pdf
- http://www.kliningstroy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160823b0688f9a---10868793082.pdf
- http://ontheedgeofnow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab1bb30a20d---41412093829.pdf
- https://sidexsideaudio.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d38490ee69---66366652792.pdf
- https://ecoinkworld.com/wp-content/plugins/super-forms/uploads/php/files/a5719e88ecff13a23cf41d7e297ca64a/nafidavijawa.pdf
- http://tribo.kz/userfiles/File/gijomifobomokikur.pdf
- http://www.melodypods.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d69976bc771---xinabulanerebuvez.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_off0000ee61.bin2e1216bd4a5e4015eef2c7b2df2855b9fef35108e8412061983157137d01087d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE61 | 10708 bytes |
font_01_sfnt_off000106ff.bin25b79dd934548101637c38e8309bfe393c21904275453e9928ffdb0062971c73 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x106FF | 17280 bytes |
font_02_sfnt_off000133b8.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x133B8 | 16792 bytes |
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