MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was identified as malicious by a ML classifier and ClamAV, indicating a phishing or trojan threat. It functions as a link farm, with numerous embedded URLs pointing to compromised CMS uploads and disposable hosting, likely to distribute malware or phish for credentials. The primary attack pattern involves luring users through a malicious attachment to access these deceptive links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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://wfca-czech.cz/temp/userfiles/files/diboxokej.pdf In PDF document text
- http://groupementpecheduloir.com/ckfinder/userfiles/files/bugilivovaxuxolorup.pdfIn PDF document text
- http://kdbelektrotechniek.nl/uploads/file/migosuropezapeju.pdfIn PDF document text
- https://bimore.vn/webroot/img/files/32251735624.pdfIn PDF document text
- http://chieucoingason.vn/files/fumalulas.pdfIn PDF document text
- https://www.ezhealthcheck.com/wp-content/plugins/super-forms/uploads/php/files/c800vnqtejjtr12ugnujvnd0ju/73246514476.pdfIn PDF document text
- http://reelproductionshd.com/userfiles/file/puluxoxaxidog.pdfIn PDF document text
- http://neoneophytou.com/ckfinder/userfiles/files/52689626785.pdfIn PDF document text
- http://historia-bfured.hu/userfiles/file/86686574906.pdfIn PDF document text
- http://pizzeriagiganti.ro/imagini_ws/motenakifaradidiv.pdfIn PDF document text
- https://ww150007.linebot.net/upfile/files/20210911175310.pdfIn PDF document text
- http://www.iamgoingto1996.com/wp-content/plugins/formcraft/file-upload/server/content/files/161365b47de413---sasekisobovepag.pdfIn PDF document text
- http://gustosandvic.com/ckfinder/userfiles/files/14473550472.pdfIn PDF document text
- http://studiotecnicoprato.eu/userfiles/files/wugipiwisowu.pdfIn PDF document text
- https://mmeasar.com/mmeasarfiles/file/wazukemi.pdfIn PDF document text
- https://eurotig.ro/file/99916545903.pdfIn PDF document text
- http://eskuvoiiranytu.hu/blog/file/dolorezarotojekoz.pdfIn PDF document text
- https://yar-net.ru/userfiles/file/ramenekonifetenateruram.pdfIn PDF document text
- http://jilienjrubin.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/35283768038.pdfIn PDF document text
- https://trinityautorepairs.com/uploads/files/xixopowa.pdfIn PDF document text
- http://st-johnson.com/Uploadfiles/files/tikaz.pdfIn PDF document text
- https://www.azulejositurry.com/wp-content/plugins/super-forms/uploads/php/files/ilfpaifk2dk567v5ufj0sbe5i4/damenirupeko.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=naruto+senki+final+mod+apk+by+ogiePDF 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_off0000c137.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC137 | 11264 bytes |
SHA-256: 333971cd786182edbf2a8353260e463020851a15d773926bf1ed3538d82f7dee |
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font_01_sfnt_off0000db44.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB44 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f356.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF356 | 21128 bytes |
SHA-256: cde93f43d60a40f74dae86e41876f45a40d1ec014fdc6e5c0443ca16a78e20f1 |
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