MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. Heuristics indicate the document functions as a link farm, with numerous embedded URLs pointing to other PDF files hosted on compromised websites. The presence of multiple unknown URLs suggests a distribution mechanism for further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
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 http://cnc-soustruzeni.cz/files/file/40671374360.pdf
- http://importfoodfair.com/userfiles/image/2021/09/file/31494392128.pdf
- http://www.hptindia.com/wp-content/plugins/formcraft/file-upload/server/content/files/161373d1dafaee---79708049069.pdf
- https://www.piramideidiomas.com/ckfinder/userfiles/files/30406114635.pdf
- https://greenboo.vn/uploads/files/pubofefaxovasesimuwufegi.pdf
- https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136062418cf0---52127718060.pdf
- http://yourhealthyanswer.com/ckfinder/userfiles/files/zesigawavagimekiguji.pdf
- http://jadever.vn/Images_upload/files/timegesuxo.pdf
- https://sirikulsteel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141f46e576c0---60496484493.pdf
- https://sibiucuratenie.ro/fckeditor/userfiles/file/99881766932.pdf
- http://mispuntossaga.com/campannas/file/dilif.pdf
- https://hgb.se/filer/file/nugesivikoja.pdf
- http://mclarenquartz.in/ci/userfiles/files/bivijibulu.pdf
- https://moniimpex.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614236f59309b---sibezazasudove.pdf
- https://woft-dining.com/webroot/editor-uploads/files/laxugan.pdf
- http://ccsl.asia/files/vedotitegifitulojatef.pdf
- http://hzaidele.com/images/upload/File/66070698515.pdf
- http://satcomlink.com/userData/board/file/27317203479.pdf
- http://kqcme.yiaiwang.com.cn/upload/files/95009802509.pdf
- http://ndc-group.ru/uploads/files/lisalopuwakizedowiwajexuj.pdf
- http://unseenadventure.com/userfiles/file/82095043077.pdf
- http://chaputlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/59733007574.pdf
- http://w-mill.jp/images/file/buzodopimibimanirukavowi.pdf
- https://rocksoliddesigns.biz/userfiles/file/48439712250.pdf
- https://ferropula.hr/files/6807407806.pdf
- https://zhavezbozi.cz/data/file/93694630096.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=something+that+begins+with+i
- 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_off0000e1bf.binc825f9ef7543c95559798a39f19ae4eed490c6b38e754c24b7387d44a0b06eff |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1BF | 18756 bytes |
font_01_sfnt_off00011220.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11220 | 16792 bytes |
font_02_sfnt_off00012a37.bind389ea15cb14ae30887e0e29cb0a26207bce0c3372b0f342e71c8c6511f51cab |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A37 | 10708 bytes |
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