MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier. It functions as a link farm, containing numerous URLs pointing to compromised CMS uploads and disposable hosting. The primary purpose appears to be redirecting users to external, potentially malicious sites, which is a common tactic for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9820
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 http://www.segurosfacility.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b9a7785dcbc---bubupuwab.pdf
- https://gccpay.net/wp-content/plugins/super-forms/uploads/php/files/1ef4444c22229dde25da1047af95c75e/49362965998.pdf
- http://remontnoedelo.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1609a4a6968d9f---kevamolutevufogemigow.pdf
- https://tcufroghouses.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d82dd08adcc---13669317378.pdf
- http://www.elitagida.com.tr/wp-content/plugins/super-forms/uploads/php/files/s75bbbr856hlg5labknhpn3mr3/65672716509.pdf
- https://wulf-sanitaer.de/wp-content/plugins/super-forms/uploads/php/files/f3ibbj82oukainjqc03n5m39q2/19993323446.pdf
- http://prttour.ca/FileData/ckfinder/files/20210618_802A51D3505403A8.pdf
- http://aarogyamedico.com/userfiles/file/mibabowubexaput.pdf
- https://nceptionsolutions.com/wp-content/plugins/super-forms/uploads/php/files/1bc80a9ea4729e4df0ec0ef359bb481e/geminup.pdf
- https://www.aceitedeoliva.com/wp-content/plugins/super-forms/uploads/php/files/49b6253be9100d943882abfd3cf5f777/vuvenekavesemisekudovoma.pdf
- http://premium-t.info/files/files/dabinajimaw.pdf
- https://haysalon.com/public_html/userfiles/file/bigetutog.pdf
- http://mitsubishilongbien.vn/images/ckeditor/files/sutebegirisukidud.pdf
- https://harpethvalleyhealth.com/wp-content/plugins/super-forms/uploads/php/files/e24f0fb99e9e22a420c80a6ffd36ebc6/10454910537.pdf
- http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/ccpmi4mo3bka2661k8l2ijkgj5/69633199630.pdf
- http://techniq.ae/admin/uploadfiles/file/xozupalalivulenifu.pdf
- https://gencerenerji.com/resimler/files/modogowi.pdf
- https://hobbes-group.com/upload/files/gewademuzarekapoxiga.pdf
- http://akinmedical.com/uploads/file/tebibegetit.pdf
- https://pablohernandes.com/wp-content/plugins/super-forms/uploads/php/files/db28e6e2ee97239b170fe763f9c44bbb/48470807939.pdf
- https://aimara-bg.com/userfiles/file/saniduwiguxugexunenapusew.pdf
- http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/1608f6dc76f0bc---59319729572.pdf
- https://loan-financial.com/wp-content/plugins/super-forms/uploads/php/files/22b2bb327158c707e0848ede3bd829cd/24954959584.pdf
- http://villa-carlshorst.de/sites/default/files/file/temevogutad.pdf
- http://gpmpoolandspa.com/ckfinder/userfiles/files/tiboxa.pdf
- https://goldengrowers.com/wp-content/plugins/super-forms/uploads/php/files/219be9f147428dd21fc4e1ae336affe1/rubawikatarusa.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=reporting+misconduct+in+public+office
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00011749.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11749 | 16792 bytes |
font_01_sfnt_off00012f5b.bin013f4958ff20f952d19b128d8078af270224bc64a992bae9f9ddcdbaba2d34db |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12F5B | 17404 bytes |
font_02_sfnt_off00015cb8.binbe8e28dd2419c3c917bab792700ec4adfb183acfe59b360c9f15e927b16ec407 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15CB8 | 11084 bytes |
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