MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a significant number of external URIs, many of which point to compromised WordPress sites acting as link farms. These links likely serve to obscure the ultimate destination, which is probably a phishing page or a malware download. The ClamAV detection and ML classifier strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://wastran.ru/uplcv?utm_term=this+how+i+love+you
- http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/160a4d57038b89---vugomisufimelewesasakaloz.pdf
- https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606fb59e38c1a---wawifaf.pdf
- http://lmalaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/bomanesulugosuvad.pdf
- https://study-go.info/wp-content/plugins/super-forms/uploads/php/files/f24e390aba5b82116562102445f108fe/7057282.pdf
- https://www.beachesbrewing.com/wp-content/plugins/super-forms/uploads/php/files/c0827d4cec19ea9247ea3acf6d99858e/duxesonajatufusosanuz.pdf
- https://aryaayur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608616880c858---99058907889.pdf
- https://mb-classic-service.de/userfiles/file/8708159697.pdf
- https://biocoils.com/img/file/34231211308.pdf
- https://szekszardportal.hu/userfiles/file/gepolit.pdf
- https://wineart.online/userfiles/file/dotulato.pdf
- http://dogninja.com/userfiles/files/libemixokunedoxeg.pdf
- http://thaoduocquyhiem.com/userfiles/image/file/tefixiruwebe.pdf
- https://arizonapoolcontractor.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ada0d9e7ab8---geduxebonumevukar.pdf
- https://realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cf4fd611585---29670162001.pdf
- https://sckprime.com/wp-content/plugins/super-forms/uploads/php/files/eaf0ced3d5ea6d053b6ae8eb8b09bb57/92730853731.pdf
- http://fly.no1-yes.com/userfiles/file/81852582643.pdf
- https://ocvirapuato.com.mx/wp-content/plugins/super-forms/uploads/php/files/0e48c8b1c73e68359ab443deb77f73f7/dokigux.pdf
- http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/160bc71f41abb9---fijosevam.pdf
- http://to-kajihan.net/js/upload/files/penezujamezubevifuduzox.pdf
- http://tamker.hu/userfiles/file/pimazarinuz.pdf
- http://areawifi.com/DESARROLLO/userfiles/files/53959417425.pdf
- http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/eouuolsla6o3o4tdncqtu3l9s3/lorapapevuwidupabomix.pdf
- http://darec.sk/files/files/71587724036.pdf
- http://karimeh.com/public/userfiles/file/fevumipu.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_off0000ecca.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECCA | 16792 bytes |
font_01_sfnt_off000104dc.bin44170043266000fe7a66b15b46817e57319d626aa5f9541285df91501e676942 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104DC | 17544 bytes |
font_02_sfnt_off00013293.bin199b2deeea004c35eb2f874bc360683509e64b8b4c80f1dfe3f81b9c4fca9cab |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13293 | 10068 bytes |
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