MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, directing users to multiple external URLs, some hosted on compromised CMS platforms. The presence of numerous links, including one with a 'utm_term' parameter, suggests an attempt to lure users to potentially malicious sites for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9966
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=clinical+fellow+interview+questions
- http://andreaslasnik.com/data/files/96629902978.pdf
- https://www.abaco-engineering.it/wp-content/plugins/formcraft/file-upload/server/content/files/160ae2fc68eef1---dokijal.pdf
- https://pypconsultores.mx/userfiles/file/2039793562.pdf
- https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/9f5c219aa049b30e634f8d3a2ecdf279/jotipek.pdf
- https://serviceservice.eu/userfiles/file/nibop.pdf
- http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607331b0aba5e---nuputafokalivigafi.pdf
- http://mg001.cn/upload_fck/file/2021-6-9/20210609130837159997.pdf
- http://luckyassessoria.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a2b547183be---40941136409.pdf
- https://aalatour.com/basefile/b2caalatourcom/files/nafasejesej.pdf
- https://bak.vn/upload/files/33869499868.pdf
- http://sacoorhealth.pt/site/upload/file/ronomonixam.pdf
- http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a632e7edab8---94238368060.pdf
- http://inspirationallabels.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607b8d2474313---69463664605.pdf
- http://novaserv.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607dfa7a52a11---31013374075.pdf
- https://izharfoster.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086564a30a9f---zupabalesosupabukego.pdf
- http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607d9a55d0b09---96716788731.pdf
- http://www.adanakursmerkezi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a4231bdc40---bisodajasokibilegux.pdf
- https://ntiverification.com/userfiles/file/tiwutezalatagisalanipaza.pdf
- http://files.ibiza-ferien.de/file/midafugabanujakolasine.pdf
- http://subventionsbetrug.de/wp-content/plugins/super-forms/uploads/php/files/miva1hba7nhe5uc61m7sdico8a/9015918590.pdf
- https://www.ikedatosou.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c43cc62bcab---79459389606.pdf
- 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_off0000f6b0.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6B0 | 16792 bytes |
font_01_sfnt_off00010ec2.binab784c76e62b346083eb34053a68b651b6da5f48f67e377b130fb3adb45e9af3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10EC2 | 16540 bytes |
font_02_sfnt_off0001393a.bine16587d942f53c900ad0126438552dc5644493dcdab8c78fc5356e2b270e154b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1393A | 10760 bytes |
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