MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to redirect users. The primary function appears to be distributing malicious content or phishing for credentials through these external links.
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://coretry.ru/uplcv?utm_term=what+were+the+first+multicellular+organisms
- http://yuha.be/_files/file/42410750020.pdf
- https://bechtoldpaving.com/wp-content/plugins/super-forms/uploads/php/files/e7985440ca71be2157cbe7b8c25aabf2/luwawera.pdf
- http://personnelstrategies.net/userfiles/file/1535711355.pdf
- https://rrvchefs.com/wp-content/plugins/super-forms/uploads/php/files/3d5138ec40819b3ed6f5a9ab8d5d1dbd/jutuzasuwonipawaluw.pdf
- http://podushka.by/files/files/wisojulavon.pdf
- https://globalazeri.az/wp-content/plugins/super-forms/uploads/php/files/a92fjdu3j8470aeuu8esl8cr34/62631334951.pdf
- http://barrarioservicos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160ba13434792c---govimim.pdf
- https://www.visitrwanda.com/wp-content/plugins/super-forms/uploads/php/files/de9053d4d189537bb65eb91c961e13bb/89852476451.pdf
- https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/160ba3bcca4d8a---11192843923.pdf
- https://creativesilhouettes.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607e9865d019f---95591385064.pdf
- https://www.femregenx.co.za/wp-content/plugins/super-forms/uploads/php/files/3njr6thvu9gtne4631g7k6312g/13080533052.pdf
- https://www.americanapi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a29a525926c---89329079541.pdf
- https://kantankacreative.com/wp-content/plugins/super-forms/uploads/php/files/8c90bc57c60c4f58faf6895ec7da6a1a/nogogeliwajikonelo.pdf
- https://leunamgroup.com/wp-content/plugins/super-forms/uploads/php/files/b315742c708a7375bcb1a87f470baf9b/fivokeduponifaku.pdf
- https://gmonlinestore.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cf4fbe4166a---vetosoto.pdf
- http://xn--42-6kcdlkbomh7beggito5p.xn--p1ai/userfiles/file/52643564118.pdf
- http://auksozvynas.lt/userfiles/file/69463409003.pdf
- https://www.ccps.mx/wp-content/plugins/super-forms/uploads/php/files/2fdf6fbc626773a38ea6a96fd2df2b31/48778281748.pdf
- https://moto-trend.cz/public/files/fck/file/70879559286.pdf
- https://cananalimdar.com/wp-content/plugins/super-forms/uploads/php/files/2var9s91mdt1291dq5mfefdisa/lexotejorotumexaleragema.pdf
- http://www.sevenchurchestour.net/seven/wp-content/plugins/formcraft/file-upload/server/content/files/160d813408d7b3---38614940827.pdf
- http://yuhongzg.com/d/files/19852197092.pdf
- https://medlineplus.gov/organizations/all_organizations.html
- 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_off0000f338.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF338 | 16792 bytes |
font_01_sfnt_off00010b4f.bin7b21798474fb5bf941e6a179d7e2b16ea175d5fab228f82dc1cc4b1dc93a3d04 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B4F | 10960 bytes |
font_02_sfnt_off000124a1.bin0baf5342a2f15141a10544b58b77f362b587805ca79a7ca8a65916128531b290 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x124A1 | 17476 bytes |
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