MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier as malicious. It contains a link farm pointing to multiple domains, some of which are hosted on compromised CMS upload storage. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the presence of numerous external links suggests an attempt to redirect users to potentially malicious websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
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://china-zub.ru/userfiles/file/40099875806.pdf In PDF document text
- http://aygroupmuh.com/image/files/27557683238.pdfIn PDF document text
- https://alshamiltrading.com/alshamilfiles/file/14028937871.pdfIn PDF document text
- https://ludifrance.fr/userfiles/file/35348762413.pdfIn PDF document text
- https://forcechicago.com/wp-content/plugins/super-forms/uploads/php/files/b17399a08232b1fff0898d62ccfa14b7/wofevabetiluf.pdfIn PDF document text
- http://hotelstrack.com/bot/ckfinder/uf/files/6488526503.pdfIn PDF document text
- http://bukharajohnscreek.com/sites/default/files/file/nodosuzed.pdfIn PDF document text
- http://bright-mineral.com/uploadfile/file/2021051622343161.pdfIn PDF document text
- https://westcoastmovers.ca/wp-content/plugins/super-forms/uploads/php/files/r802gjen3og1bfehncclqagil9/nesetupisinit.pdfIn PDF document text
- http://conflictfreeelectronics.com/ourprojects/chowki/UserFiles/renuka/file/77323428336.pdfIn PDF document text
- https://iva-vietnam.com/userfiles/file/36535510266.pdfIn PDF document text
- https://xn--22ck6bdp5cach0mc23a.com/ckfinder/userfiles/files/80875269295.pdfIn PDF document text
- http://marinapogon.pl/upload/file/fomusefezub.pdfIn PDF document text
- https://www.sgestrecho.es/wp-content/plugins/formcraft/file-upload/server/content/files/1608808894d1b2---nezemuzakenuzujomamifumun.pdfIn PDF document text
- https://ckmusicdesign.nluserfiles/file/606915665.pdfIn PDF document text
- https://autoschiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/16072473bd5601---gijuvugifob.pdfIn PDF document text
- https://www.dazzlingdecor.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160ad256d54066---rifuviramujidizewasogevab.pdfIn PDF document text
- https://hmanagement.net/userfiles/file/23681175884.pdfIn PDF document text
- https://musikkursus.dk/userfiles/file/82552562048.pdfIn PDF document text
- http://nuyewrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/40faeafec2797b5818b304969e6af7b2/868386539.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=icd+10+code+for+chemotherapy+induced+nauseaPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000dabf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDABF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f2d1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2D1 | 17092 bytes |
SHA-256: 57c4a21d6a897d5c2f2f940289865b90420105b5bb66014ab8da9cb97b75cf2d |
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font_02_sfnt_off00011f31.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F31 | 11176 bytes |
SHA-256: a2915af0c78a3e1fba6dcf5c1bcac4b32dd0fc6be37a46f1278dedec51dd9f82 |
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