MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is identified as a malicious PDF by ClamAV and an ML classifier, specifically flagged as a phishing trojan. It functions as a link farm, with numerous URLs pointing to various domains, some of which are compromised or host further PDF files. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a non-clustered link farm on disposable hosting, suggesting an attempt to manipulate search engine results or distribute malicious content through indirect means.
Machine Learning
- Nyx PDF Classifier malicious score 0.6664
Heuristics 5
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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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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 http://boeschfamilytravels.com/clients/43210/File/71151208920.pdf In PDF document text
- http://colafranceschi.it/userfiles/files/jofanoluwinovewowe.pdfIn PDF document text
- http://mikllc.mn/uploads/files/zimukiwipawakuwi.pdfIn PDF document text
- http://paillasse.hu/userfiles/file/39836245038.pdfIn PDF document text
- http://www.petersmetalstitching.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607aabd8035e2---83345198317.pdfIn PDF document text
- https://www.xcelsus.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ad031490e1b---60226391024.pdfIn PDF document text
- http://www.kindytennis.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac3d04e7b06---vunonuvemoge.pdfIn PDF document text
- http://erfolgsapp.de/wp-content/plugins/formcraft/file-upload/server/content/files/16092abcf3ff85---fojopesulab.pdfIn PDF document text
- https://allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/41a3af35e5d44db427c4cabfa153fe38/zoxatajutabefumeg.pdfIn PDF document text
- http://bumsnab.ru/uploads/files/43431485462.pdfIn PDF document text
- http://hurtglass.pl/upload/file/fugezupesu.pdfIn PDF document text
- http://www.majorisinvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160d8aec34db69---75352336532.pdfIn PDF document text
- http://patrick-vallot.com/upload/files/87547744973.pdfIn PDF document text
- http://adaviestransportltd.com/userfiles/file/35369205750.pdfIn PDF document text
- https://mandarinusa.com/userfiles/file/1626709606.pdfIn PDF document text
- https://christianboudreau.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8846288c95---84238208088.pdfIn PDF document text
- http://www.pavimentosyreformasferlu.es/ckfinder/userfiles/files/sujubilituvudakuvedew.pdfIn PDF document text
- http://www.medicalalliedtraining.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609adbbbcadd9---kemigokax.pdfIn PDF document text
- http://china-zzld.com/uploadfile/file///2021070511135138.pdfIn PDF document text
- https://ancoraeducacion.com/images/xiwibonaxepobigap.pdfIn PDF document text
- https://haysalon.com/public_html/userfiles/file/wajetagurakalivi.pdfIn PDF document text
- https://www.temsilcisitesi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c772745d61---gajulizasizajiw.pdfIn PDF document text
- http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/160facfb9e6ae3---dukukabi.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=lg+air+conditioner+error+codesPDF link annotation
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d9df.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9DF | 16440 bytes |
SHA-256: 1b3bc799830987eedf7f4b3ed7765ac190d06fd4bb63d3a7cd351bf356b2928a |
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font_01_sfnt_off00010493.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10493 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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