MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. The document employs a social engineering lure, instructing the user to install a browser extension or update, which is a common method for distributing malware or stealing credentials. The numerous embedded URLs, many hosted on compromised WordPress sites, suggest a link farm designed to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
Heuristics 7
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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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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://dongytueduc.com/wp-content/plugins/super-forms/uploads/php/files/bug23a1cncpma4l7dham9kdsqg/3350070171.pdf
- https://www.advids.co/wp-content/plugins/formcraft/file-upload/server/content/files/16073096add9b1---zefurobudaniferaselof.pdf
- https://bluebeakbranding.com/wp-content/plugins/super-forms/uploads/php/files/cd510136839974eb1f1dd792a2ee6d22/9248227221.pdf
- http://toyotarent.tw/FileData/ckfinder/files/20210701_FFE8CBACC62DC0EA.pdf
- http://dansecyr.ca/pdf/file/rujinuvunujoboweto.pdf
- http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c9855e9da4---vametufujazulokowote.pdf
- http://www.hkqi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cd53676121d---39814661016.pdf
- http://neodentpetrosino.it/userfiles/files/japubomesatimevolezus.pdf
- http://rauvuonsach.com/images/uploads/files/kikakomosibevodapis.pdf
- http://www.mondzorgvesa-voorschoten.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160af7b3e9f899---71262316315.pdf
- http://fizjoactiv.eu/Upload/file/10894126655.pdf
- https://qualitylightsolutions.com/wp-content/plugins/super-forms/uploads/php/files/34d1165ad5e70f7a7aa9ddb745636738/29507696720.pdf
- https://militarynetwork.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607cbd62b8f1d---xixiza.pdf
- http://www.sunargrup.com.tr/wp-content/plugins/super-forms/uploads/php/files/umdsmvrr4mal2u1vd227t74fa2/wugajexuwidizagezuxufivux.pdf
- http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/1607009c62144e---fejubutifaguziposikili.pdf
- http://medipharmacompany.com/userfiles/files/61087331503.pdf
- https://schmitz.cz/res/file/sazaguxumid.pdf
- https://psychotherapie-dr-albrecht.de/wp-content/plugins/formcraft/file-upload/server/content/files/160d283ac9ac32---9003156920.pdf
- http://ettorebelfioreliutaio.it/userfiles/files/zorutebojugizobavokofi.pdf
- https://moniimpex.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a9476d0abd---86245386984.pdf
- http://elma1.ru/!upload/files/55729182107.pdf
- https://hartwellcook.com/wp-content/plugins/super-forms/uploads/php/files/63430fee830e8a2dd5c2d1810ad174cf/65792194405.pdf
- https://mtmnetwork.net/uploadEditor/files/tixaxadugopif.pdf
- http://inewbus.com/wp-content/plugins/super-forms/uploads/php/files/98tv4lpgh47pdnk745sivp5qg3/79159871019.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=github%2Fprodigy+redirect+hack
- 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_off0000d67e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD67E | 16792 bytes |
font_01_sfnt_off0000ee90.bin551cc6ab3a65ccc175b1bea7a1c2ac632af4acbb8ddf076fc9f513e4cec79cdf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE90 | 16800 bytes |
font_02_sfnt_off00011a76.bin7401464881bbb9c6a95d37b7f319e71471763448682447b4574ef8b240499037 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A76 | 10992 bytes |
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