MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, containing numerous URLs pointing to other PDF files hosted on compromised CMS upload storage and disposable hosting. This suggests a tactic to distribute further malicious content or engage in SEO manipulation.
Machine Learning
- Nyx PDF Classifier malicious score 0.9932
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 http://zjhywt.com/images/upload/File/22457523886.pdf
- https://wentworthre.com/wp-content/plugins/super-forms/uploads/php/files/ef0c264306eb1a99e4e33a33e6f1d0f4/46564095779.pdf
- http://carroll1975.com/clients/4/4e/4e2b018d07aaa5a30c3e4fca1c7a8df7/File/87239355006.pdf
- http://anhbanglaw.com/userfiles/file/fesefafopusovitozezibal.pdf
- http://kino-profi.com/wp-content/plugins/super-forms/uploads/php/files/8f98269bd0c41f4f6d149eba186c7064/92140463366.pdf
- https://travolution.travel/wp-content/plugins/super-forms/uploads/php/files/c387594a67e07cc479245400a3b5b5fe/98177366482.pdf
- http://meteosputnik.ru/userfiles/file/86838634924.pdf
- https://monocroma.it/wp-content/plugins/super-forms/uploads/php/files/e262caa35b6fdf7855f33acb34c0ea04/61315919921.pdf
- https://leavereview.com/customerinterview/ckfinder/userfiles/files/27750389540.pdf
- https://bursakaynak.com/userfiles/file/84834996556.pdf
- http://soldresold.com/Shradhdha-Mehra/soldresold/final/ckeditorimage/files/62312084762.pdf
- https://maryamghiasi.com/images/upload/files/20358083087.pdf
- https://www.advids.io/wp-content/plugins/formcraft/file-upload/server/content/files/160b61ef242405---425019932.pdf
- http://monkey-do.net/userfiles/file/86638490789.pdf
- https://tucsonhomewindowtint.com/wp-content/plugins/super-forms/uploads/php/files/04cddecc736aba407026af887bc4d32d/moliber.pdf
- http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/1606fd0e0c0d6b---baxutuva.pdf
- https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/160af4087066f2---32353645927.pdf
- https://advantagelic.com/singhania/downloads/file/96519988654.pdf
- http://amctop.com/board_data/editor_img/file/202105211205.pdf
- https://samsungdvm.net/upload/ckfinder/files/74734729538.pdf
- http://www.expo-hotel.com/english/wp-content/plugins/formcraft/file-upload/server/content/files/1608f2b4a0a6a5---bonoxoju.pdf
- https://asiabiru.com/contents//files/45106743623.pdf
- https://gk-termopanel.ru/wp-content/plugins/super-forms/uploads/php/files/2f06757ed61f6ea0c5d4abeb9c7f96bf/4634012580.pdf
- http://palami.by/images/file/22484813295.pdf
- http://urbanconstructions.org/images/uploadedimages/file/vufupakubu.pdf
- https://churchosonline.com/wp-content/plugins/super-forms/uploads/php/files/89e878651025e8d5b296bc44e5fe712e/14061276723.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=what+to+eat+when+starting+intermittent+fasting
- 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_off00010063.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10063 | 16792 bytes |
font_01_sfnt_off00011875.bin6880c5cd184f4265dcd7893acbf354d81013df5954d0f096d86ab5bb8fd81d7a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11875 | 16568 bytes |
font_02_sfnt_off00014306.bin2e36600b4b2ba7e66c54c6dbbe13c26fb31792af8b2a52cce2a7685721e6e679 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14306 | 10696 bytes |
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