MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links pointing to compromised WordPress sites and other disposable hosting, suggesting a link farm designed to redirect users to malicious content. The primary attack pattern involves exploiting user trust through a document that likely leads to phishing or further malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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://coretry.ru/uplcv?utm_term=reading+comprehension+by+sujit+kumar+pdf
- http://manufim.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160b5dea48b332---muxig.pdf
- http://syuncyoku.jp/upload/file/zomuteb.pdf
- http://rajskiewakacje.pl/userfiles/file/97997668172.pdf
- https://vashadvokat82.ru/wp-content/plugins/super-forms/uploads/php/files/28a245977338263c5275c7849ca08a76/64231923883.pdf
- http://www.alfainstal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16099f20b544fa---meduti.pdf
- http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609580480682f---48877118275.pdf
- https://www.nobleorthodontic.com/wp-content/plugins/super-forms/uploads/php/files/18fa9c9327af8db5e2ec99d93d48dcb5/vujumutigirenorudoxiwalof.pdf
- https://eyestech.in/wp-content/plugins/super-forms/uploads/php/files/fou4810ro0fb0ndfqn68n21v68/76561794456.pdf
- https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/160b90a9359876---livuj.pdf
- https://myhoorayhealth.com/wp-content/plugins/super-forms/uploads/php/files/soa612gr7k2d64h35qsn9uq9i7/riwajo.pdf
- http://www.lavalledesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b42a8f4ec7b---wufofemisod.pdf
- http://endustriyelkiralama.com/wp-content/plugins/super-forms/uploads/php/files/ur62v65kjsakj0aufbcstvq0vb/dikudi.pdf
- http://gf-location.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1606d13ab1598b---bobezot.pdf
- http://paroissedementon.fr/upload/files/xijuruzaleroval.pdf
- http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/160a5cb59ab5c2---wefas.pdf
- https://msr-hudsonproperties.com/wp-content/plugins/super-forms/uploads/php/files/529d5cebe770c9e70adb251a4c7cd2a8/ximuraxavilaw.pdf
- https://kassa-evotor.ru/wp-content/plugins/super-forms/uploads/php/files/21k5qaf8g8ee7dgi842kb1ah6p/kanepob.pdf
- http://ytbozhuo.com/upload/file/230536129464.pdf
- https://www.nosolodespedidas.es/wp-content/plugins/formcraft/file-upload/server/content/files/16073bf4c31594---92114651505.pdf
- http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/16078f0ae80914---65502730713.pdf
- http://teerosy.com/ipp/images/uploads/files/64264870630.pdf
- https://chris-arnold.com/userfiles/file/somirafevemuzafu.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_off0000d7a4.binf6df6cf34bdc93e575aa0b8e40e83eea15fd943b8eb1fa8a63523cf15489f7c0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7A4 | 17176 bytes |
font_01_sfnt_off000104ac.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104AC | 16792 bytes |
font_02_sfnt_off00011cc3.bin99dc2bb6b380f3212ad05d85e82f24c1de1be388427b9ccfa2be6ff896f4a33b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11CC3 | 11640 bytes |
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