MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains numerous external URIs and links to compromised CMS upload storage, indicating it functions as a link farm. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or distributing further malware. The presence of multiple distinct hosts and URLs points to a broad distribution effort.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://huntic.ru/uplcv?utm_term=pdf+maulid+simtudduror PDF link annotation
- https://fieldofgreen.com/wp-content/plugins/super-forms/uploads/php/files/e22cca0e6c809c0eaa3f96c35c009651/16963064455.pdfIn PDF document text
- https://amursvoidom.ru/media/files/43757497685.pdfIn PDF document text
- http://bomtvplus.com/data/board/file/20210519094147.pdfIn PDF document text
- http://furniture83.com/upload/files/zukuboxalimudama.pdfIn PDF document text
- http://aardbeienfeesten.nl/uploadimages/files/81902821699.pdfIn PDF document text
- https://www.finestkindcharter.com/wp-content/plugins/formcraft/file-upload/server/content/files/160acf1562182b---livojulojutovada.pdfIn PDF document text
- http://www.octopus-quatuorvocal.com/ckfinder/userfiles/files/80706671897.pdfIn PDF document text
- http://shinserviceodi.ru/wp-content/plugins/super-forms/uploads/php/files/931200cf5aa03ad78ada4a5a80853c0f/18639873373.pdfIn PDF document text
- http://www.kreasoft.mx/wp-content/plugins/formcraft/file-upload/server/content/files/16085079e284d0---53422548191.pdfIn PDF document text
- http://www.hydro-tg.pro/upload/file/fopamawuzovigaxotipiza.pdfIn PDF document text
- http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/rrh94g90kv7vk2cuucbdf3tvf2/sigex.pdfIn PDF document text
- https://www.isgs.org/wp-content/plugins/super-forms/uploads/php/files/e0ecdb084853e1244f1f15f6a7f034ac/33988402836.pdfIn PDF document text
- http://erimti.com/userfiles/file/sijowukumipoxizeve.pdfIn PDF document text
- http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/hl6ptnq9oocsua4behpqs0k8u0/peritekeso.pdfIn PDF document text
- http://maynenkhipuma.vn/quangbasanpham/app/webroot/upload/image/files/41117268770.pdfIn PDF document text
- https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/cf14077396189cce73bd80f31241de46/58388009392.pdfIn PDF document text
- http://www.ponderosafestival.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074f7667da28---7306571461.pdfIn PDF document text
- http://vipnovini.bg/root/f/uploads/files/morufovexatilagenibu.pdfIn PDF document text
- http://mellorymotors.ru/admin/ckfinder/userfiles/files/15038804904.pdfIn PDF document text
- http://nagyberki.hu/sites/default/files/fck_uploads/file/zemuvomus.pdfIn PDF document text
- http://interwork.sk/userfiles/file/12892114467.pdfIn PDF document text
- http://infrabud.eu/fckpliki/file/jepanaguwixumudes.pdfIn PDF document text
- http://makaeximworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070d6a836062---fokubumevefirafutolobul.pdfIn PDF document text
- http://kapsalonindex.nl/images/uploads/95944920344.pdfIn PDF document text
- http://www.yoko-ono.be/images/userfiles/file/89858476649.pdfIn PDF document text
- 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_off0000d896.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD896 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f0a8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0A8 | 18728 bytes |
SHA-256: 59da3b72ba62373629fa4aa824ec861f4cc5658f548f87a81a030d6d2cc69b89 |
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font_02_sfnt_off000122a7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x122A7 | 10380 bytes |
SHA-256: 6b6b6224d4f28d5ffc86060f5b7f94a1e3c06a67ad5986cf26b989b6d544511c |
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