MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. Heuristics identified it as a PDF link farm, with many URLs pointing to compromised WordPress sites or disposable hosting, suggesting a phishing or SEO manipulation scheme. The document body was heavily obfuscated and unreadable, providing no direct content clues.
Machine Learning
- Nyx PDF Classifier malicious score 0.9989
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 https://hrmconsulting.biz/upload/files/51474053445.pdf In PDF document text
- https://extremetour74.ru/wp-content/plugins/super-forms/uploads/php/files/6add2fd72216fa6dee4642236cc5d97c/78197521877.pdfIn PDF document text
- https://kvartira-zalog.ru/wp-content/plugins/super-forms/uploads/php/files/ce6159cc3591422833bb42f414d9b909/86907445770.pdfIn PDF document text
- https://www.pharmawell.eu/ckfinder/userfiles/files/veroripurotodew.pdfIn PDF document text
- https://projetounificado.com/uploads/files/zugibuwamasuderagezazu.pdfIn PDF document text
- http://shinserviceodi.ru/wp-content/plugins/super-forms/uploads/php/files/e6f39ee5cc1f19466fd20ef6572f70f1/9693004257.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075978adff20---sofukomusisep.pdfIn PDF document text
- https://wecareu.net/ckfinder/userfiles/files/90542097867.pdfIn PDF document text
- http://thegioidahoacuong.com/uploads/image/files/kinekinavixenapumafaz.pdfIn PDF document text
- http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e1246a93e1---86812749518.pdfIn PDF document text
- https://www.rydalmereprestige.com.au/wp-content/plugins/super-forms/uploads/php/files/s76ptnds76sdn306c3kkpdh4a0/17703828812.pdfIn PDF document text
- https://boumqueur-edition.com/upload/fckeditor/file/genasejazebimozigokine.pdfIn PDF document text
- http://rmgoals.com/userfiles/files/lufaziwulikotodalegep.pdfIn PDF document text
- https://binarbaid.com/public_html/userfiles/file/33481112976.pdfIn PDF document text
- https://carpanea.it/wp-content/plugins/super-forms/uploads/php/files/7fb4667154854fa30cd3b7e6a62be659/finudolaz.pdfIn PDF document text
- https://fiscalonline.eu/app/webroot/files/userfiles/files/sadewubifinakoja.pdfIn PDF document text
- http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/16088b17a82bcd---jazowi.pdfIn PDF document text
- http://noithatphathuy.com/Images_upload/files/saguwivexobeseniwalomo.pdfIn PDF document text
- http://dr-onesrl.com/userfiles/files/77491326525.pdfIn PDF document text
- https://vieclamxaydung24h.com/upload/files/36823546123.pdfIn PDF document text
- https://bushregenerators.biz/userfiles/files/degimasukatijitimopurefiv.pdfIn PDF document text
- https://saraelv.no/wp-content/plugins/formcraft/file-upload/server/content/files/160810003bc2e6---85888723831.pdfIn PDF document text
- http://mouaumfb.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a8e2ee91cbd---wiforekideluxe.pdfIn PDF document text
- http://www.tenniscanberra.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16078401901d2c---fejeweguxixojefaridibi.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=cbse+class+8+science+metals+and+non+metals+notesPDF link annotation
- 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_off00010a26.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A26 | 10812 bytes |
SHA-256: c7ff44cb1866d521cbb2224ebbb805426decef57a9e5c11f96405029fa2a6f05 |
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font_01_sfnt_off00012313.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12313 | 17388 bytes |
SHA-256: 436deb8104be96d883d6fc01c54dd2484ef1eed4a510e0934e36b94cbc04b7f2 |
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font_02_sfnt_off000150e5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x150E5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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