MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous embedded URLs pointing to compromised or disposable domains, suggesting a phishing or malware distribution scheme. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' further supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://onmamtour.com/FileData/ckfinder/files/20210904_12501F686FD333F0.pdf In PDF document text
- https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/mbr7mg5rahr9sb58jmp8kprl14/nibukokepulizovik.pdfIn PDF document text
- http://adaviestransportltd.com/userfiles/file/jaxafo.pdfIn PDF document text
- https://bwawarszawa.pl/upload/file/41168639487.pdfIn PDF document text
- https://postelezmasivu-olomouc.cz/ckfinder/userfiles/files/43827831533.pdfIn PDF document text
- http://prodesign31.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16131842b53fe1---25091735622.pdfIn PDF document text
- http://langeline.com/ckeditor/upload/files/60548237001.pdfIn PDF document text
- https://renfrewareahealthvillage.ca/ckfinder/userfiles/files/43263293727.pdfIn PDF document text
- http://linuxnewyork.com/draft/media/bulozarifiru.pdfIn PDF document text
- http://dioceseofniranam.org/userfiles/file/72581387962.pdfIn PDF document text
- https://phatgiaolongan.com/upload/ckupload/files/bokegimowumejo.pdfIn PDF document text
- http://francescasciortino.it/userfiles/files/24152634284.pdfIn PDF document text
- https://braus.uz/images/shared/file/66215534441.pdfIn PDF document text
- http://tractortools.cz/ckfinder/userfiles/files/37329440250.pdfIn PDF document text
- http://leadershipcareer.kr/fckeditor/_upload/file/resanexekivo.pdfIn PDF document text
- http://acsalma.hu/userfiles/files/dezawuxejelogoxo.pdfIn PDF document text
- http://zeroseistudio.eu/userfiles/files/wiluki.pdfIn PDF document text
- http://micronforgacsolo.hu/UserFiles/file/jabonusoradubexitu.pdfIn PDF document text
- http://hainescentreasia.com/images/file/biron.pdfIn PDF document text
- http://mebel-moscow.com/content/xuploadimages/file/85984062389.pdfIn PDF document text
- http://usagimatur.com/files/others/8354006925.pdfIn PDF document text
- https://frasertechno.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612e9eea6a6c2---lolazatimelix.pdfIn PDF document text
- http://reafamily.lt/ckfinder/userfiles/files/vobofagaretizoburinaponu.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=how+to+fix+android+stuck+in+headphone+modePDF link annotation
- 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_off0000da4f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA4F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f261.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF261 | 18112 bytes |
SHA-256: 131757becf5ad5b1b66a5fb4d952b3e684980145eddaff2e0a167e9a1d560e1f |
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font_02_sfnt_off000120fd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x120FD | 11208 bytes |
SHA-256: 2d2e94d293f5847c6742a13fead5dced1bba4c8c89b9eb314b1dde1e204558b0 |
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