MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and ML classifiers, indicating a high likelihood of malicious intent. The PDF contains numerous external links, many pointing to compromised CMS uploads or disposable hosting, suggesting it functions as a link farm. These links likely lead to phishing pages or malware downloads, aligning with the 'Pdf.Phishing.Trojan' detection.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://synerhu.ru/uplcv?utm_term=firechat+apk+download PDF link annotation
- https://urology-andrology.com/userfiles/file/medixewakanusisonuzegetas.pdfIn PDF document text
- http://energyexcess.com/userfiles/file/86703092471.pdfIn PDF document text
- http://jutaek.humenia.com/upload/userfiles/2021/09/files/210917230500.pdfIn PDF document text
- http://hondaototanan.com/upload/files/jugule.pdfIn PDF document text
- http://bualuang101.com/backoffice/upload/files/41851997679.pdfIn PDF document text
- http://www.thaiboat.net/image/upload/File/51911886768.pdfIn PDF document text
- http://palmdale.thepokeluau.com/uploads/files/54463842538.pdfIn PDF document text
- https://pyhm.ca/wp-content/plugins/super-forms/uploads/php/files/loiv9qrneh8h64em2pomrb48jj/30722164189.pdfIn PDF document text
- http://anhuifan.com/upload_fck/file/2021-9-5/20210905065234343619.pdfIn PDF document text
- http://lisahyatthealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614902574cd22---22829806084.pdfIn PDF document text
- http://fujiya-burbank.com/uploads/files/13875637798.pdfIn PDF document text
- http://dgjinhak.kr/DATA/upload/files/202109060252502334.pdfIn PDF document text
- http://all-paca.com/ckeditor/ckfinder/core/connector/php/uploads/files/fuzulafebef.pdfIn PDF document text
- http://e-park.es/img/uploads/files/23449066535.pdfIn PDF document text
- https://www.la-melodie-des-saveurs.fr/ckfinder/userfiles/files/36046717993.pdfIn PDF document text
- https://acrgruppe.de/userfiles/file/40411506838.pdfIn PDF document text
- https://readxyz.com/wp-content/plugins/super-forms/uploads/php/files/5d2e1f150e9cc14333fa70f90e188c57/13747822363.pdfIn PDF document text
- https://www.agencesramos.com/ckfinder/userfiles/files/3709243271.pdfIn PDF document text
- http://av-jet.ru/userfiles/file/feripogubulidos.pdfIn PDF document text
- https://studioconcept-stand.com/fck_userfiles/file/87793277475.pdfIn PDF document text
- https://cyc-catering.pe/disac/userfiles/file/20459400567.pdfIn PDF document text
- http://himalayakebab.irafbrothers.com/shipinc/userfiles/files/bogufesivuxariwelutego.pdfIn PDF document text
- http://star-transform-moscow.ru/uimg/files/jikelojulaxibo.pdfIn PDF document text
- http://benthanhsgfarm.net/images/uploads/files/ruzexogazefeduwebubazov.pdfIn PDF document text
- https://dehaventransportation.com/home/de/public_html/ckfinder/userfiles/files/kisujinogugokik.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_off0000d30e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD30E | 17764 bytes |
SHA-256: 32994cabe44245549d6b1ba7395e5cd459a28a68216bbe2b44cebcea73b63947 |
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font_01_sfnt_off00010144.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10144 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001195b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1195B | 10596 bytes |
SHA-256: 147d00acc7ac20b82009f370a9f72b7c1f703c45fe6d8fb7a2c8b54f78e3be02 |
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