MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a link farm pointing to numerous compromised websites, many of which host other PDFs. This suggests a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to exploiting PDF vulnerabilities or delivering further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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://www.hydro-tg.pro/upload/file/52265815789.pdf In PDF document text
- https://www.rockandroll.blog.br/wp-content/plugins/super-forms/uploads/php/files/fnm21jf8t748s3pje57ira32fa/xavenelikotizefivizunevo.pdfIn PDF document text
- http://highendschmiede.de/highendfiles/file/zutevudisem.pdfIn PDF document text
- http://sun-green.be/ckfinder/userfiles/files/gipewilufiralesudekix.pdfIn PDF document text
- http://apvn.info/userfiles/file/91714433543.pdfIn PDF document text
- http://urgentcarepb.net/userfiles/file/66006584929.pdfIn PDF document text
- http://pate4me.com/userfiles/file/rekoli.pdfIn PDF document text
- https://www.zulilighting.com/wp-content/plugins/super-forms/uploads/php/files/cc983cb1fc499001cd3baf41436a75cc/51042697585.pdfIn PDF document text
- https://3eyamaichi.com/upload/ckfinder_temp/files/20210812181811.pdfIn PDF document text
- https://dacoma.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607f720fc6b2b---42146640057.pdfIn PDF document text
- http://brenno-tojestto.pl/userfiles/file/82970438652.pdfIn PDF document text
- http://bergfin.se/wp-content/plugins/formcraft/file-upload/server/content/files/1607035b76abec---93661548240.pdfIn PDF document text
- http://xboxheerlen.nl/userfiles/file/93823158707.pdfIn PDF document text
- https://euro-m.si/web/dokumenti/file/tufibidosuvefalapel.pdfIn PDF document text
- https://voyageaventurenepal.com/upload/files/mikumazuwasizenapezofikak.pdfIn PDF document text
- https://bepxuyenviet.com/upload/files/81660744368.pdfIn PDF document text
- http://karlsbach.de/userfiles/files/wepove.pdfIn PDF document text
- http://lncxjzxxw.com/upload_fck/file/2021-6-28/20210628050159897685.pdfIn PDF document text
- http://womenwhorockarkansas.com/clients/4/4c/4cfcdabbb7b8ad81bafe9a4295858145/File/87575730825.pdfIn PDF document text
- http://msslink.ru/userfiles/files/lutawuwodejerabazol.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=magnetism+and+matter+class+12+important+questions+pdfPDF 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_off0000e35d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE35D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fb6f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB6F | 19072 bytes |
SHA-256: 25fa0dc308885b17b916360283261f61a5ea59ae1c12071e042ddcc4eab97faf |
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font_02_sfnt_off00012d76.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D76 | 11376 bytes |
SHA-256: b5eb290ab6b75df1e360b2079ea16058289b869584d5dc4ac79079297e03a644 |
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