MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as a malicious PDF by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm pointing to potentially compromised CMS upload storage and disposable hosting, suggesting a phishing or malware distribution lure. The embedded URLs, while some are marked benign, contribute to the overall pattern of directing users to external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://www.intermediastudios.com.mx/wp-content/plugins/super-forms/uploads/php/files/18e4bb3462cb2860a62034765e58f9ea/fudusedogapum.pdf
- http://519pf.com/userfiles/files/zimojolutavumewuvurin.pdf
- http://pcwenhua.com/uploadimg/file/1630699698366406628.pdf
- https://abcelectricalonlineshop.brilliantwebtech.com/userfiles/files/parasebegopuwelapugeteve.pdf
- https://ibrahimkoc.com/images/Media/files/zolisanutasibudugewog.pdf
- http://eca.or.th/ckfinder/userfiles/files/kibajovug.pdf
- https://lerong.vn/wp-content/plugins/super-forms/uploads/php/files/b0de4f4e4e7b67e8fc0aaf4d995c0703/67762381681.pdf
- http://brno-skoleniridicu.cz/ckfinder/userfiles/files/91370175096.pdf
- http://strategie-online.net/catalogue_dynamique/file/50234965137.pdf
- http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131c0382c1d8---muxaxufozirotasipinefis.pdf
- http://archi1919.com/smlclub-files/file/ligamalifumejagogamenej.pdf
- http://hongphuc.vn/userfiles/file/fixenodatudugotujaxuxa.pdf
- https://dalilak1.com/userfiles/file/palolujekorexe.pdf
- http://dekoblickfang.de/userfiles/file/69734977057.pdf
- https://vleek.com/uploads/files/20324785218.pdf
- http://denki-shonan.com/uploadsfile/vuwazujude.pdf
- http://motopujcovnateplice.cz/userfiles/file/69674587627.pdf
- https://galedo.cz/www/data/cms_files/files/ridikufozovevetogi.pdf
- https://cooperadora.grupocreartel.com/documentos/archivos/29199331345.pdf
- https://emotionalgift.youngzonejewelry.com/ckfinder/userfiles/files/kefinusuwoxurirexuzo.pdf
- http://studiopol.it/userfiles/files/wexegabulemesigukelafub.pdf
- https://www.gml.de/wp-content/plugins/formcraft/file-upload/server/content/files/16145099e2b1c2---mebewuzotatepawoputogi.pdf
- http://gsnursing.in/ckeditor/ckfinder/userfiles/files/munoziwugojuvari.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=lucky+patcher+for+android+apk
- 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_off0000b88d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB88D | 16792 bytes |
font_01_sfnt_off0000d0a4.bin28a2421d312139df301a98b70786b552812f2801acc63fc32ff54c1c603a916e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD0A4 | 10768 bytes |
font_02_sfnt_off0000e96f.bind386f5f5086ddffe9f58f32dfc504adea1e95f4cecf71d680a8e892459f16b25 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE96F | 18852 bytes |
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