MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains numerous links to external websites, many of which appear to be hosted on compromised CMS platforms or disposable domains, suggesting a link farm designed to redirect users. The document body is heavily obfuscated and unreadable, indicating an attempt to hide its malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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://studioguidobarbieri.it/userfiles/files/93288942267.pdf
- http://josephlillianmorrisfamily.com/clients/59960/File/73363333889.pdf
- http://bygreenpure.com/userfiles/file/58880196318.pdf
- http://uhy-th.com/image/upload/files/varerawiximuj.pdf
- https://bamor.org/userfiles/file/77258671035.pdf
- http://soepcentrale-dekeyser.be/userfiles/file/20313663548.pdf
- http://penoplex24.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160c18ca625734---25000237633.pdf
- http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d23102d0f83---31338085274.pdf
- https://vernadoc.com/wp-content/plugins/super-forms/uploads/php/files/8087954c929436628ee961ab01dd0973/kumifenimeluzikuwadasego.pdf
- http://logo4you.dk/userfiles/file/57388358120.pdf
- https://fermuar.com/wp-content/plugins/formcraft/file-upload/server/content/files/160872a98457b9---sogefazuguzef.pdf
- https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a553a9e07ba---62625918104.pdf
- http://www.hotel-margherita.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607bcb8e82c8b---36044395942.pdf
- http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/16094d5a3b1f1f---50723082487.pdf
- http://akkoryazilim.com/userfiles/file/244347265.pdf
- http://albino-pitti.com/pub_img/file/75391188368.pdf
- http://sgo-bage.com/public/files/files/49052863368.pdf
- https://www.femregenx.co.za/wp-content/plugins/super-forms/uploads/php/files/pg9psiha26fm0unk8ihdup1n8o/soxinibikojujix.pdf
- http://israel-aliya.com/wp-content/plugins/super-forms/uploads/php/files/67266ee6e768c9af1f8880fccaa65c88/62536087175.pdf
- http://gapoom.com/upload/fckeditor/file/kegopoduruwobodipebojanig.pdf
- http://n2nlah.org/UserFiles/file/bokivof.pdf
- http://abwplazaview.com/uploads/files/29558602527.pdf
- http://beckydavidsonhomes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ebca682f4e---xidodadivanejugesa.pdf
- https://teenvolunteerhouston.org/wp-content/plugins/super-forms/uploads/php/files/8298f03a3d5c41809a7c8dc11b298d80/loresazofigijanewo.pdf
- http://nuk-amro.de/userfiles/file/wisasobezepa.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=what+is+a+diatomic+molecule+in+chemistry
- 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_off0000f844.binf4eef7207dd362ddd452201ecf1d727b3ea99a39a4f25c78592c7924c98d4c32 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF844 | 17600 bytes |
font_01_sfnt_off00012580.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12580 | 16792 bytes |
font_02_sfnt_off00013d97.bin0fbbed12c3e9d1a4ecc00d284cc1eb967ffd74f684d7b365021a71f316bc5430 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13D97 | 10844 bytes |
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