MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier. It contains numerous links pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users. The presence of embedded URLs and the nature of the heuristics indicate a phishing or malware distribution attempt, likely initiated via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9790
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://catamma.ru/uplcv?utm_term=amputation+in+tagalog PDF link annotation
- http://megat.pl/uploaded/fck_files/file/73361726340.pdfIn PDF document text
- http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/oh0638antcauja49dlanb736e0/35854109004.pdfIn PDF document text
- http://uat.ideadunes.com/projects/ideadunes-portfolio-site/wp-content/plugins/formcraft/file-upload/server/content/files/1609c5ff8abe41---46447833654.pdfIn PDF document text
- http://remontnoedelo.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160b5761348ef9---53326452018.pdfIn PDF document text
- http://chinoboxingclub.com/clients/36032/File/jupijixi.pdfIn PDF document text
- http://drvision.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c93bd49177c---51774954582.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dac4d9e0e9f---85181931299.pdfIn PDF document text
- https://wrd13.com/force/file/84919920880.pdfIn PDF document text
- https://law.com.sg/wp-content/plugins/super-forms/uploads/php/files/224bb4b811f660c603755887359c3d83/jadunusowa.pdfIn PDF document text
- http://zonweringbelgie.com/ckfinder/userfiles/files/15079746009.pdfIn PDF document text
- https://www.ideaklinikizmir.com/wp-content/plugins/formcraft/file-upload/server/content/files/160788bbfca060---tefotuwefukun.pdfIn PDF document text
- http://ikhmongol.mn/ckfinder/userfiles/files/86302267650.pdfIn PDF document text
- http://brighterhealthcare.co.uk/wp-content/plugins/super-forms/uploads/php/files/56u0bpd3b4o2ijpidrd9vngaej/xixosopunixovaxapir.pdfIn PDF document text
- https://www.zulilighting.com/wp-content/plugins/super-forms/uploads/php/files/ce52ec717fb95061b581bab042cee8b9/38856761969.pdfIn PDF document text
- http://championsview.net/userimages/ninepuresiridifafewoxal.pdfIn PDF document text
- http://bazatalty.pl/wp-content/plugins/super-forms/uploads/php/files/b9ae821db1577e2659ff077e4a88fae6/sataziwek.pdfIn PDF document text
- https://brusroom.com/wp-content/plugins/super-forms/uploads/php/files/70a68fd55fc4681188368ea219c607ac/36952141154.pdfIn PDF document text
- http://duocmyphamcongty.com/app/webroot/uploads/files/86959411194.pdfIn PDF document text
- https://horacebatten.com/ckfinder/userfiles/files/wolawaxafojefe.pdfIn PDF document text
- https://indacphuc.com/wp-content/plugins/super-forms/uploads/php/files/tteso3grp55kaffl3m0c531u55/dupuzojazegos.pdfIn PDF document text
- http://www.saraviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d78d838d3b---33745846894.pdfIn PDF document text
- http://anhuifan.com/upload_fck/file/2021-4-29/20210429214336846975.pdfIn PDF document text
- https://rivaflo-south.in/userfiles/files/33301252495.pdfIn PDF document text
- https://nowackleverkusen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b163b74c1f4---tapopivajirapezoduxuvigad.pdfIn PDF document text
- https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b376dbb06b---63646530462.pdfIn PDF document text
- http://principessavencanice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f1dbf63c8f---48112475922.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_off000133a2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x133A2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00014bb4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14BB4 | 18004 bytes |
SHA-256: 9aa44b333e3a1d20fd296cb3648cdaf4ea0b9b60941da1e775b827b0a20a0ddb |
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font_02_sfnt_off00017ac6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17AC6 | 10276 bytes |
SHA-256: d04ab085a0828a1a8b73965cc7e1388a8714b75c82ebe88c45c909bb61efde27 |
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