MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or trojan threat. It contains numerous links to external websites, many hosted on compromised WordPress sites or disposable domains, suggesting it functions as a link farm to distribute malicious content. The presence of external URIs and link farm characteristics points towards an attempt to redirect users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://catamma.ru/uplcv?utm_term=do+you+need+cellular+data+to+text
- http://businessplan-capalpha.fr/mbp/upload/images/images/upload/ckfinder/balerogeramapalolaxe.pdf
- http://agendaalzheimer.org/files/galeria/files/20299685575.pdf
- https://aawyx.com/sites/default/imageuser/file/40105710496.pdf
- https://cardion.dk/gfx/fckimages/file/zemega.pdf
- https://amitadevnani.com/userfiles/file/17796580249.pdf
- https://shinyjewellers.com/wp-content/plugins/super-forms/uploads/php/files/3oj97v2pu95gbdv23g2mitdup2/dezalebibada.pdf
- https://edu-mate.kr/_UploadFile/Images/file/56181539360.pdf
- https://primeodontorj.com/wp-content/plugins/super-forms/uploads/php/files/7f0d9f651e1b26e3e81972993cbe5602/54902591590.pdf
- https://www.davinci.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160a7c8f303eca---42192758648.pdf
- http://artmetinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608164e9dba2c---ribozorokutazijodus.pdf
- http://hgbs.de/userfiles/file/julofexalonamudokixi.pdf
- http://skyfestival.kr/ckfinder/userfiles/files/zowir.pdf
- https://anandamsanyal.com/userfiles/file/8313276523.pdf
- http://ahkkpcm.org/userfiles/45401993007.pdf
- https://mygamedaysports.com/wp-content/plugins/super-forms/uploads/php/files/0cef0e0ed32d026b8af7650512f873a5/bevidisufomifupexebodomi.pdf
- http://aitrans.cn/UploadFile/file/F1202106210507403682.pdf
- http://wrhs1967.org/clients/6/61/617565fc8afb9cc6d18abf932d248b7a/File/34543371980.pdf
- http://gorisum.net/fckeditor/upload_file/file/5490135316.pdf
- https://www.prestigeautobody.com.au/wp-content/plugins/super-forms/uploads/php/files/11e5a09d0a0becee3aa68864e640bbbd/womigimogiratesaxotol.pdf
- https://daleel.global/wp-content/plugins/super-forms/uploads/php/files/qvpdu3r9d69andqlneadi29e41/55635256832.pdf
- http://chickenwild.com/upload/contents/images/images/rududelarumirinina.pdf
- https://www.adilaltinsoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ce6bc7a140---18053144861.pdf
- https://xn--80aaa1anac6cg.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/b82e9dc587a8b7de42af9c43641b62e8/70128183949.pdf
- http://cp-tournament.org/ckfinder/userfiles/files/96696158366.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_off0000ff30.binbd462fa14e6943ac6e11f9d72d985e70bb147829589fe04fb5ee982f5f41d979 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF30 | 20016 bytes |
font_01_sfnt_off00013300.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13300 | 16792 bytes |
font_02_sfnt_off00014b17.bin2efa2bb9ba671e0c2018022a96d6b5aa888d56f0587a3666fddfc99b8a1ad54f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14B17 | 10420 bytes |
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