MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised CMS upload directories or disposable hosting, indicating a link farm designed to redirect users to potentially malicious content. ClamAV and ML classifiers also flagged this PDF as malicious, specifically as a phishing trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
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 https://carpanea.it/wp-content/plugins/super-forms/uploads/php/files/223d5016ab998f59e0948b6ec995957c/vamas.pdf
- https://www.pietri-automobiles.com/wp-content/plugins/super-forms/uploads/php/files/0ppc2kf20khedm8aq260bqn231/pivixezewokadadinefowu.pdf
- https://akapacha.com/userfiles/file/52217328296.pdf
- https://kogan-photo.ru/wp-content/plugins/super-forms/uploads/php/files/545899ed122a0e155d64e797054bf9b6/67930256333.pdf
- http://amadpich.com/userfiles/file/43102241436.pdf
- http://3handseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160878387b118a---bemevelisabap.pdf
- https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160bd5e4237574---98731367127.pdf
- https://rugsinc.in/UserFiles/files/58032478152.pdf
- http://goref.ru/files/file/wibedipapa.pdf
- https://razvozka24.ru/wp-content/plugins/super-forms/uploads/php/files/b7e9d0d971788e200ac9c92b8790c73a/nujomanejexowanima.pdf
- http://amon-syotengai.com/userfiles/file/dobawafenipozutumujit.pdf
- https://tort-art.ru/userfiles/file/14784951990.pdf
- http://prunay-en-yvelines.fr/ckfinder/userfiles/files/fulimi.pdf
- http://chagatea.ru/wp-content/plugins/super-forms/uploads/php/files/2c45ca01aace353ea7b5d4c3e860e9da/40574252806.pdf
- http://akicgiyim.com/userfiles/file/30425007254.pdf
- http://www.afamaresme.org/wp-content/plugins/formcraft/file-upload/server/content/files/160759defb447a---jinapuf.pdf
- https://boucherienabli.com/uploads/FCK_files/file/81574743657.pdf
- https://hafa-verein.de/wp-content/plugins/super-forms/uploads/php/files/267f304e5fd13ea4c62d71f774aa1147/96523421231.pdf
- https://infravoip.com/wp-content/plugins/super-forms/uploads/php/files/7c2a35f91f3666d29f0859594a2c3bc1/sufenig.pdf
- https://homini.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160794f6c7e66d---tevutulaniged.pdf
- https://www.tanyadantus.com/wp-content/plugins/super-forms/uploads/php/files/b7d516dc42e55f4962da2338f29c6f30/42233830975.pdf
- http://snnet.kr/board_pds/fckeditor/2021/06/file/59877942120.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=general+knowledge+books+for+kids+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_off0000bc55.binf13c258a89c3d11d8fe8f022cb12518f1ae1d91a77186156b832ff89a94a12aa |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBC55 | 10932 bytes |
font_01_sfnt_off0000d560.bin343d75e3731aff0cb0aa90106b3a5d66aae50051afa70be353f25e7edffbf065 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD560 | 16512 bytes |
font_02_sfnt_off0000fffe.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFFE | 16792 bytes |
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