MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link farm with numerous external URLs, many pointing to PDF files hosted on various domains. Several heuristics indicate these are link farms on disposable or compromised hosting, suggesting a malicious intent to redirect users. The ML classifier and ClamAV detection strongly indicate maliciousness, likely related to phishing or malware distribution via these linked documents.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://bioident.pl/photos_fck/file/dokefimepagepozatalo.pdf
- https://yukkumpulgroup1.com/contents/files/mukaduvitolumakifokivi.pdf
- http://mallenmediations.com/mallenmediations/images/userfiles/file/wabofuxudoloriv.pdf
- https://www.frontierexim.com/wp-content/plugins/super-forms/uploads/php/files/brlcb86ooht1f2geroqglhm0gr/mukeguponojo.pdf
- https://www.fecomerciomg.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca5990cbd4---jafimakeviw.pdf
- http://uceng.net/_UploadFile/Images/file/duguzowisatilisumiwob.pdf
- https://a2designbg.com/userfiles/file/zemuwefopened.pdf
- https://alexandrapanayotou.com/web/images/static/file/tafapevejukosemediwimuxag.pdf
- http://expertcomptablecourreges.fr/michel_courreges/userfiles/file/48466799313.pdf
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606f37c347055---vozomoxesuf.pdf
- https://paperland.bg/uploads/file/kosewuxajofujolal.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094590b83338---74193845930.pdf
- http://securitydirect.it/wp-content/plugins/super-forms/uploads/php/files/7802e0c0dbbdbbbe31a6e67327360453/ridabuguvoxakipegusakofez.pdf
- http://daisytalavera.com/userfiles/files/jotizefazajiga.pdf
- http://ji-tien.com/userfiles/file/68137554587.pdf
- http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/atltqkoj9iv6u2dpsgqf5crhq2/votivotagakuxuwup.pdf
- https://peilimineko.com/userfiles/file/napexemaduwikomuf.pdf
- https://novzelandiya.ru/ckfinder/userfiles/files/nurafolovurotudadu.pdf
- http://aldobini.it/userfiles/files/xopubonipojugix.pdf
- https://greenbins.ca/ckfinder/userfiles/files/genivumitigiruf.pdf
- http://la-roofers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160ce1ca28214b---29149612552.pdf
- http://www.nationaalgolfcongres.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16086b5a8063f4---sodoxewiximowufowob.pdf
- http://altaprecision.com/userfiles/file/piwometenetezedamupizi.pdf
- http://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d01357c279---kosoxinada.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=changing+fractions+to+decimals+and+vice+versa+worksheets
- 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_off0000d7bf.bin871b725cd6c503180431cff6114e59c5f860d28b34e581cc94d951944b311023 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7BF | 20692 bytes |
font_01_sfnt_off00010c1e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C1E | 16792 bytes |
font_02_sfnt_off00012435.bin2bfce6c7d1d8ef6a66f1af02f86917453b8d18d5c15ec8c9c908417eb736bfad |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12435 | 11196 bytes |
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