MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs pointing to various domains, many of which appear to be compromised or disposable hosting. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a pattern of creating link farms on potentially untrustworthy domains. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware delivery through these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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=move+photo+album+to+sd+card PDF link annotation
- https://muahohangnhat.com/app/webroot/uploads/files/37009624964.pdfIn PDF document text
- http://4998horo.gmmwireless.com/contents/files/buzon.pdfIn PDF document text
- https://pielinks.com/UserFiles/file/fezin.pdfIn PDF document text
- https://tebra.si/userfiles/file/44605194800.pdfIn PDF document text
- http://www.mbk-montage.nl/ckfinder/userfiles/files/jotawijirozoxufodifif.pdfIn PDF document text
- http://erfansari.ir/ckeditor/files/files/11121545007.pdfIn PDF document text
- http://lunaleo.pl/userfiles/file/ruralunigorupuwanax.pdfIn PDF document text
- http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/161343ef078641---xatixurokelowasalegepidif.pdfIn PDF document text
- https://bestcaps99.com/ckfinder/userfiles/files/3600221046.pdfIn PDF document text
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613c88cab9755---lalogufikulezanap.pdfIn PDF document text
- https://ccveg.org/wp-content/plugins/super-forms/uploads/php/files/4468q6b5k1qbbj6gsegg23igtf/mugokurimunelulatusu.pdfIn PDF document text
- http://ebd.su/UFD/7623/files/70221108829.pdfIn PDF document text
- http://ctnphrae.com/ckfinder/userfiles/files/89931461268.pdfIn PDF document text
- http://steakpluspizza.us/userfiles/file/89566425040.pdfIn PDF document text
- http://xn--80akij1ajew.xn--p1ai/wp-content/plugins/formcraft/file-upload/server/content/files/1613c669d8249f---80120223867.pdfIn PDF document text
- http://madiagranitosilano.it/userfiles/files/gefetozukuwokafin.pdfIn PDF document text
- http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/161372f2b3e814---lemom.pdfIn PDF document text
- http://hotel-ambassador-nice.com/upload/files/35341839044.pdfIn PDF document text
- https://www.ciabrini-immobilier.com/wp-content/plugins/super-forms/uploads/php/files/min7fbfj7vpgtahoh0ba7d15jq/94667288565.pdfIn PDF document text
- https://specialgarden.ro/userfiles/file/16743244190.pdfIn PDF document text
- https://www.digitalsofts.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137e84d7a92e---28005769804.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_off0000d7f7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7F7 | 17516 bytes |
SHA-256: 12aebdc96bef3aa4c53267da7ce2cac35ab5d774f0b6780c5ed36507bd390db4 |
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font_01_sfnt_off0001059b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1059B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011db2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11DB2 | 10884 bytes |
SHA-256: a7e6ecacb64929399d3d5e9b32aaa28db3250f2c24c2ec5aadc6587a1e3fa4e3 |
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