MALICIOUS
124
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as a malicious PDF by ClamAV. Static analysis reveals it contains numerous external URLs, many pointing to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to redirect users to potentially malicious content. The presence of embedded URLs and the nature of the heuristic firings indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier suspicious score 0.4490
Heuristics 5
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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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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://drafthe.ru/uplcv?utm_term=if+you+have+a+pinched+nerve+in+your+neck PDF link annotation
- https://soechi.net/userfiles/file/39220300279.pdfIn PDF document text
- http://grgct.com/ckfinder/userfiles/files/zuvazajaseto.pdfIn PDF document text
- https://grandegroup.net/files/gusuxarewamew.pdfIn PDF document text
- http://fusheng-vietnam.vn/admin/webroot/upload/image/files/80229661198.pdfIn PDF document text
- http://centroolosprato.it/userfiles/files/liwupevodovotudane.pdfIn PDF document text
- http://www.yankey.com.tw/demo/public/editor/ckfinder/upload/user_upload/files/28624027308.pdfIn PDF document text
- https://e-casainteligenta.ro/userfiles/file/nizizokogiwemixomin.pdfIn PDF document text
- http://www.uvhk.com/wp-content/plugins/formcraft/file-upload/server/content/files/161411bf518fd6---90444710320.pdfIn PDF document text
- https://pyhm.ca/wp-content/plugins/super-forms/uploads/php/files/7flo7a09bnnco0jatgnvgvrksp/71290156078.pdfIn PDF document text
- http://soepcentrale-dekeyser.be/userfiles/file/dafuzujasidarubalilubugav.pdfIn PDF document text
- https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/upd6k9s9qn65df55q6hhrjqrgk/58974899159.pdfIn PDF document text
- http://tuzy.pl/Upload/file/63662526990.pdfIn PDF document text
- http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/161536c11ef546---pabetuver.pdfIn PDF document text
- https://metroguards.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1613bf9669249f---39513359341.pdfIn PDF document text
- http://conservationenergy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16156cde81e4d7---62937797540.pdfIn PDF document text
- https://rhythmcprandfirstaid.com/wp-content/plugins/super-forms/uploads/php/files/698795f2d6fb69918522e84732f8d370/15327475876.pdfIn PDF document text
- https://jasz-pap.hu/UserFiles/file/dozevu.pdfIn PDF document text
- http://ticketsperiodico.com/galeria/files/daruwonivukupuwoxunobik.pdfIn PDF document text
- https://newoptic.sas-global.mn/uploads/files/11961366786.pdfIn PDF document text
- https://infotechsystemsonline.com/ital/www/img/file/46907758093.pdfIn PDF document text
- https://hgindustrial.eu/userfiles/files/pojezalogubika.pdfIn PDF document text
- https://mandarinusa.com/userfiles/file/1631755104.pdfIn PDF document text
- https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/01b6d6bac06f28d780990347894ffaaa/lakiziwegafamupolamepume.pdfIn PDF document text
- http://jsjxh.org/filespath/files/20210914024740.pdfIn PDF document text
- http://yibetter.com/data/files/68685636032.pdfIn 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_off0000e2d7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2D7 | 18676 bytes |
SHA-256: 4bbfb3328a36641a87dbd9a5e23cf9f4ccb9ec65c6f2a1cb140e9114170616dd |
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font_01_sfnt_off0001136c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1136C | 10728 bytes |
SHA-256: c57d5a4c29cf7655dd3069db35b231e738070884d1091b2f406336919dbe7dd9 |
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font_02_sfnt_off00012c06.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12C06 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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