MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by multiple heuristics as malicious, including a link farm pointing to compromised CMS uploads and a ML classifier. The document body is unreadable, but the presence of numerous URLs, many hosted on compromised WordPress sites, indicates a phishing or distribution lure. The primary goal appears to be directing users to external, potentially malicious, content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9943
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 http://cerezolorente.com/files/cerezolorente/_repo/file/11238305376.pdf
- https://marksiegeldds.com/wp-content/plugins/super-forms/uploads/php/files/be51c51aedd72bfec9be899a8b21675c/dojeb.pdf
- https://amalighting.com/wp-content/plugins/super-forms/uploads/php/files/73451f9c0acfcacf3caa04b5caaafc97/74142269187.pdf
- http://sysquare.com/UserFiles/files/46621194917.pdf
- https://www.tai.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160b281ecdb2ab---50788755750.pdf
- http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c4b08565702---48711646432.pdf
- http://neuragen.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16090f85209f92---dopugol.pdf
- http://vodnik48.ru/content/file/wawez.pdf
- https://gymlesgeants.com/upload/editor/file/wuwigivesabu.pdf
- https://mrmusicfoundation.org/wp-content/plugins/super-forms/uploads/php/files/nj3ssb5mupna8ga4dehu15mtql/xediwixozerikulozeduk.pdf
- http://africansafaris-spain.com/FCKeditor/editor/filemanager/connectors/php/connector.php?Command=FileUpload&Type=File&CurrentFolder=%2Ffile/38554637576.pdf
- http://www.corazondelsol.es/ckfinder/userfiles/files/28467486868.pdf
- http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/16084e3b99a8c4---93047698770.pdf
- http://atlantichomeportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/160990f98a8e8a---mozenivizoba.pdf
- https://marlin-aquarium.ru/ckfinder/userfiles/files/mufulawipawimukodulasan.pdf
- http://delawaretravelmedicine.com/wp-content/plugins/formcraft/file-upload/server/content/files/160764b20a1605---ruwovuketusor.pdf
- https://akarchlight.com/wp-content/plugins/super-forms/uploads/php/files/de72318ccd9e56e8333f93d6e143aae1/giwigi.pdf
- http://abovomedia.hu/_user/file/24183074001.pdf
- https://ecomassage.pt/wp-content/plugins/super-forms/uploads/php/files/nv2cnrg6dq0hmgjtcfg96mv18f/84621321239.pdf
- https://socialacademy.gr/wp-content/plugins/super-forms/uploads/php/files/3eec1bf6b6844863b1f2c11f6e994a4f/wafozawesa.pdf
- https://dungcuruamui.com/wp-content/plugins/super-forms/uploads/php/files/htucdp8de0rh21hhj42274v0tr/zibuzipigogunero.pdf
- https://lucky-erotic-massage-bucharest.ro/ckfinder/userfiles/files/82266715090.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=a+dictionary+of+travel+and+tourism+terminology
- 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_off0001d8f7.binc43e6190ff0d6f83c9a2c1832f77f53939e5efdd47bb9561840f4a1553e2d0d4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1D8F7 | 17336 bytes |
font_01_sfnt_off00020651.binc589cd47a3166aee7206cb699892d11f51301f3efaf6fbf7639390802719829a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x20651 | 11080 bytes |
font_02_sfnt_off00022005.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x22005 | 16792 bytes |
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