MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs, many of which point to compromised CMS upload storage or are part of a link farm on disposable hosting. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware via the linked sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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 https://catamma.ru/uplcv?utm_term=best+privacy+apps+android
- http://nutranghongngoc.com/media/ftp/file/zevefugasop.pdf
- http://balashixa.inhome360.ru/admin/ckfinder/userfiles/files/zogiwufinoxusufusozakew.pdf
- http://botosani.ro/img/uploads/file/kunujebuwepimele.pdf
- http://kamkmori.cz/ckfinder/userfiles/files/gedonafagizuri.pdf
- https://eecpowerindia.com/codelibrary/ckeditor/ckfinder/userfiles/files/93938088386.pdf
- http://bergfin.se/wp-content/plugins/formcraft/file-upload/server/content/files/161486ec790608---wedaxaxuso.pdf
- http://master-stroi76.ru/userfiles/file/siwumi.pdf
- http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/1614d75788e4d3---likajafabogafena.pdf
- https://tekmaker.com/upload/files/67787288014.pdf
- http://ventexevent.se/uploads/file/xizeritalonimedusidotaz.pdf
- http://yhbinternational.com/userfiles/file/28238507354.pdf
- http://www.binghan.my/userfiles/file/77757780466.pdf
- https://dedywiredja.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614c51f242866---24523190512.pdf
- http://daechienglishpark.com/ckfinder/userfiles/files/jojuxineredabasavefi.pdf
- https://home18.ru/wp-content/plugins/super-forms/uploads/php/files/ae4e4337fc94d92a5e43e24ee46c180a/48092304233.pdf
- http://dj-maily.com/uploads/pages/files/10899364763.pdf
- http://preprod.app-nomads.com/ugecam/admin/ckfinder/userfiles/files/zejuzamaxux.pdf
- http://peggylittlelawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/woduja.pdf
- http://sooclose.eu/upload/File/32245936333.pdf
- http://smolninskayahotel.com/userfiles/file/boporosiremuba.pdf
- http://sarkanyhajo.hu/files/file/mozizofuxo.pdf
- http://sov.tranovice.org/webpagebuilder/ckfinder/userfiles/files/77708015634.pdf
- http://ncdesign.it/userfiles/files/36682915351.pdf
- http://arucax.am/user_images/file/lukejobutodosemi.pdf
- 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_off0000b475.bin5d9a0191747782c9787b069e63d59512a6aa446adb2b7134398ee39bfb95cacb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB475 | 18148 bytes |
font_01_sfnt_off0000e2b5.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2B5 | 16792 bytes |
font_02_sfnt_off0000facc.bin7abb5de1878bbe61e8368e4d047bae404bfe9ddae3a3d8088c56ad3124ea7464 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFACC | 10696 bytes |
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