MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous external links, many pointing to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The document body is heavily obfuscated and appears to be generated by wkhtmltopdf, providing no direct user-facing content but likely serving as a container for the malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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 https://ketchas.ru/uplcv?utm_term=gest%C3%A3o+administrativa+de+recursos+humanos+pdf PDF link annotation
- http://kantoromega.pl/userfiles/file/vusoxiwilipum.pdfIn PDF document text
- http://cinstech-inspect-survey.com/fckeditor_userfiles/file/49437764261.pdfIn PDF document text
- http://files.ibiza-ferien.de/file/fobagelokepagumijopuzax.pdfIn PDF document text
- https://prikolnaya.com/wp-content/plugins/super-forms/uploads/php/files/9e2dd64030f05ca17c4c9fea83ef4995/31902739088.pdfIn PDF document text
- http://kamerton.nl/clientfiles/32188991830.pdfIn PDF document text
- https://www.chesapeake-lighting.com/wp-content/plugins/super-forms/uploads/php/files/985c63811a91148a881103e1f5d00237/potajeg.pdfIn PDF document text
- http://akicgiyim.com/userfiles/file/44375775873.pdfIn PDF document text
- http://rcp-ranstadt.us/files/mexex.pdfIn PDF document text
- https://www.aceitedeoliva.com/wp-content/plugins/super-forms/uploads/php/files/be8e1ca4da49626644bbd8f8f228737e/35478176949.pdfIn PDF document text
- http://ceramicaartisticamarsalese.it/userfiles/files/rotawedafipodamonupeba.pdfIn PDF document text
- http://phuocthuan.vn/images/pic/file/17302499650.pdfIn PDF document text
- http://bazatalty.pl/wp-content/plugins/super-forms/uploads/php/files/e5292051ff4ac54e65cf66c096b91245/32176842918.pdfIn PDF document text
- http://avonsteel.com/UserFiles/file/bejalekijodizagibagifuzol.pdfIn PDF document text
- http://pk.mo/userfiles/file/figaratavosofup.pdfIn PDF document text
- http://auroraenergyproject.it/userfiles/files/74430909453.pdfIn PDF document text
- http://badischer-kunstverein.de/ckfinder/userfiles/files/44809492071.pdfIn PDF document text
- http://www.jobsincrete.gr/images/_user_na/file/wimuro.pdfIn PDF document text
- https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/16073fa99e146b---lojivojatutag.pdfIn PDF document text
- http://rockhouseschool.com/rockhouse/uploads/files/30878337332.pdfIn PDF document text
- https://radiosmile.hu/upload/file/mizokonarum.pdfIn PDF document text
- http://gartenbaukoeln.de/uploads/files/9804123141.pdfIn PDF document text
- http://aeskulap24h.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d2b6ad2c963---4489993778.pdfIn PDF document text
- http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a98b61ab114---bufekotiru.pdfIn PDF document text
- 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_off0000d928.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD928 | 11312 bytes |
SHA-256: 37deaa4f3fd2b4d2a7b582f9062c1a237c03bd92cc83f349530e027bbe220333 |
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font_01_sfnt_off0000f333.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF333 | 21072 bytes |
SHA-256: 1135c6536d9ede19903daa1ce663f52eca668fef1efd796e30bb6cb992e01869 |
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font_02_sfnt_off000127e4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x127E4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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