MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains a large number of embedded URLs, many of which point to compromised WordPress sites. The ML classifier and ClamAV both flagged this file as malicious, indicating a phishing or trojan distribution attempt. The primary function appears to be directing users to potentially malicious content through a link farm.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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.musicmaestrodiscos.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160901ec2b9280---domadezewavoju.pdf In PDF document text
- http://yatros.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1610fc0e7720bf---fawatazevumikuto.pdfIn PDF document text
- http://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/c19b2a4144a4fdcffb34271f8eb2de45/90520935568.pdfIn PDF document text
- https://atamergranit.com/userfiles/file/difimus.pdfIn PDF document text
- http://profisystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16093ff053f5b0---77631673739.pdfIn PDF document text
- http://tai-yang.tw/taiyang/upload/file/28146638441.pdfIn PDF document text
- http://schule.havonix.com/ckfinder/userfiles/files/futeg.pdfIn PDF document text
- http://cn-junsheng.com/upload/file///202172524211510.pdfIn PDF document text
- http://interstroy96.ru/uploads/files/45820698715.pdfIn PDF document text
- http://abwalabamaave.com/uploads/files/sijobi.pdfIn PDF document text
- http://la-roofers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160aa4c6b131cd---8867255789.pdfIn PDF document text
- https://naseeha.org/wp-content/plugins/super-forms/uploads/php/files/f0d84d166ff60e2daaa1f1df7bfec29f/84162419768.pdfIn PDF document text
- https://al-farh-iq.com/upload/userfiles/file/88316710727.pdfIn PDF document text
- http://haenuri.net/ckupload/files/84494086046.pdfIn PDF document text
- https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ffecc3a23f4---kubabiretokazufuso.pdfIn PDF document text
- https://sgpropertylawyers.com/wp-content/plugins/super-forms/uploads/php/files/af548db6c6a77096d569ea77df7e766f/kogevibileju.pdfIn PDF document text
- http://for-rent-antwerp.com/wp-content/plugins/formcraft/file-upload/server/content/files/160847145a4c85---7888456470.pdfIn PDF document text
- https://master.plus/wp-content/plugins/super-forms/uploads/php/files/8dc410efc059058b57250c1da1b07a88/rulizimemopugo.pdfIn PDF document text
- http://mamtomchabahai.com/uploads/files/files/5837279317.pdfIn PDF document text
- https://betenrealestate.com/sites/default/files/file/6791112871.pdfIn PDF document text
- https://alsultantrading.ae/userfiles/files/82821344758.pdfIn PDF document text
- http://f-okinawa.com/img/tmp/files/fejuri.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=%C3%A9tica+adolfo+s%C3%A1nchez+v%C3%A1zquez+capitulo+1+y+2PDF 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_off00011d16.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D16 | 11456 bytes |
SHA-256: 516f44879c12c0a08c752d86f913001ea3e623a19f442e1725491705f1c1df92 |
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font_01_sfnt_off000137a4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x137A4 | 19460 bytes |
SHA-256: e0abab5a10886fbd0aba029ba288ee30304a7e5a4322afa7ab0733b84e2238bc |
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font_02_sfnt_off0001694b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1694B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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