MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. It contains numerous links, many pointing to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of these links and the overall structure indicate an attempt to facilitate phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9958
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://baongochoa.com/upload/file/lamezavo.pdf In PDF document text
- https://www.unicodesystems.com/wp-content/plugins/super-forms/uploads/php/files/jo591v6l4u2mtvmmv79tsgfrd5/baziritunekavawaruvab.pdfIn PDF document text
- http://tuzvedo.hu/elemek/file/javemasulete.pdfIn PDF document text
- http://es-umzuege-transporte.de/wp-content/plugins/super-forms/uploads/php/files/6dfc68c98510b5adbe794732646b9866/46477857199.pdfIn PDF document text
- https://drahmetbostanci.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074d0b93a761---41811788320.pdfIn PDF document text
- http://summitremodelinginc.com/userfiles/files/davosupiwugasu.pdfIn PDF document text
- http://3duct.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b93fbba8b81---57049250874.pdfIn PDF document text
- http://apgindia.in/uploads/file///jifejafu.pdfIn PDF document text
- https://licorne-hotel-restaurant.com/userfiles/file/lumobabud.pdfIn PDF document text
- https://www.zaantraining.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a95ed7b9864---58399381702.pdfIn PDF document text
- https://www.explosivo.gr/wp-content/plugins/super-forms/uploads/php/files/e580fb3f022617a19e57d4590fb15d5c/zugirafawezapi.pdfIn PDF document text
- https://artsketch.ru/wp-content/plugins/super-forms/uploads/php/files/8b4aea904106d74aa6a8387f5256c7fc/32539274065.pdfIn PDF document text
- http://choinka4x4.org/cms/files/file/56375337405.pdfIn PDF document text
- http://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa4dcfb7a20---29012951246.pdfIn PDF document text
- https://www.azembay.com/wp-content/plugins/super-forms/uploads/php/files/m9sruhdkevu8b4q86e3cgideb7/dabolofavexu.pdfIn PDF document text
- https://securitegenerale.tn/userfiles/file/11131213242.pdfIn PDF document text
- http://lookupagency.es/wp-content/plugins/formcraft/file-upload/server/content/files/16075296d8c08d---5726216887.pdfIn PDF document text
- https://dcmheavyequipment.com/admin/images/file/45271584805.pdfIn PDF document text
- https://masterpieces-mallorca.com/wp-content/plugins/super-forms/uploads/php/files/9608ebc4c4382ee04c536a4e79fffa14/rarojuvolokunepazenirekix.pdfIn PDF document text
- http://www.bewegeninarnhem.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c57d1ee8da2---juzanawiduzal.pdfIn PDF document text
- http://www.hkwebdesign.com.hk/wp-content/plugins/formcraft/file-upload/server/content/files/1609db962dc6e3---17455159467.pdfIn PDF document text
- http://50wj66.com/clients/a/af/af9d65f11c1965a5434adcd4cd578f00/File/32381008893.pdfIn PDF document text
- https://iominneapolis.com/wp-content/plugins/super-forms/uploads/php/files/baa6172068da7fabbd2537e1277030c3/82738748102.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=how+can+i+check+my+weight+onlinePDF 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_off0000cf6e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCF6E | 16708 bytes |
SHA-256: 4d88413761a8549ce1aabd91f6e90a301055882ca93bc4b467ea047efbe5b313 |
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font_01_sfnt_off0000facf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFACF | 10692 bytes |
SHA-256: 9be6cd416c852b0ff7baab9871f8d85d20f1c7e34ffe744f3eb40174b4ff8e58 |
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font_02_sfnt_off0001132a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1132A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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