MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and multiple external URIs, some of which point to compromised CMS uploads or disposable hosting, indicating a malicious intent to redirect users. The ML classifier and ClamAV detection strongly suggest malicious content. The embedded JavaScript is likely used to facilitate the redirection or exploit vulnerabilities.
Machine Learning
- Nyx PDF Classifier malicious score 0.9943
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://torremaggiore.sitmap.it/files/files/99221717065.pdf
- http://shriramashramps.org/userfiles/file/pupedojokadub.pdf
- https://ecableapp.com/FCKeditor/FCKimgUpload/file/nakisam.pdf
- http://denis-lefebvre-services.com/fichiers/file/xofifusi.pdf
- http://tubelessons.net/cms_images/file/47894089964.pdf
- http://wu-pao.com/upfiles/editor/files/kopilibokoxojaz.pdf
- https://riverasphotovideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ffbc0379ef---33430638686.pdf
- https://xn--78-6kce7dfhb9dwb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/c991341eeab986464381dd3b06338970/14079230602.pdf
- http://emblem4home.com/UserFiles/Member/File/nikerexaturedife.pdf
- https://www.eecpowerindia.com/codelibrary/ckeditor/ckfinder/userfiles/files/jubamiwosidinabefeloga.pdf
- http://jts-electrical.co.uk/ckfinder/userfiles/files/dunivemilijagi.pdf
- https://intervalhousehamilton.org/ckfinder/userfiles/files/dibepuvodi.pdf
- https://motionslam.com/wp-content/plugins/super-forms/uploads/php/files/a74b2520234465f408b6dda045962ca8/najifodetojuzefilekofu.pdf
- http://thewesternmist.com/userfiles/file/91016014194.pdf
- http://fli.edu.mn/ckfinder/userfiles/files/ketudasutitekasasupal.pdf
- http://gabident.pl/local/userfiles/file/35728193768.pdf
- https://digicpictures.com/downloads/61633462520.pdf
- http://csaladiegyteruautok.hu/userfiles/files/jetukano.pdf
- https://cooperspick.com/files/23586547206.pdf
- http://www.southpointinstitutehowrah.com/admin/uploads/file/22487886666.pdf
- http://encino.kopanramen.com/uploads/files/20352369396.pdf
- https://marlin-aquarium.ru/ckfinder/userfiles/files/lufudodibubekisepuxugiji.pdf
- http://groupementpecheduloir.com/ckfinder/userfiles/files/wapobebijawuvukod.pdf
- http://shiinamotors.com/js/upload/files/59933605394.pdf
- http://theprojectmanagement.guru/cote_dor_import/admin/ckfinder/userfiles/files/24965518611.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=dav+class+8+science+book
- 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_off0000c603.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC603 | 16792 bytes |
font_01_sfnt_off0000de1a.bina5d4527cc685161ecce163a25ccee7cf116db7782f146d1347a53d3a4af8012e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE1A | 10532 bytes |
font_02_sfnt_off0000f63d.bin1e41820a3a6d5d239bb73b55961f0107ddad04c5aba27126e6524b95e08bccec |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF63D | 17852 bytes |
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