MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF was flagged by multiple heuristics as malicious, including a link farm pointing to compromised CMS uploads and disposable hosting. The ML classifier and ClamAV also identified it as a phishing trojan. The embedded URLs likely lead to further malicious content or phishing pages, indicating a spearphishing attachment attack vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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://vetranhtuongmamnon.vn/wp-content/plugins/super-forms/uploads/php/files/sr4kbfdl2ulpk8kukgad15o58i/49579664296.pdf In PDF document text
- https://miet.hu/kepek/kinexejuzirodogi.pdfIn PDF document text
- https://www.ikedatosou.com/wp-content/plugins/formcraft/file-upload/server/content/files/160767d47509d5---54711871190.pdfIn PDF document text
- http://2girlstrippin.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b82fe93d743---sokamoriwepawebiletuvo.pdfIn PDF document text
- https://oiweld.com/wp-content/plugins/super-forms/uploads/php/files/cfffedc3cf945634c7c36f7b38c8f4be/fepowexa.pdfIn PDF document text
- http://cetinelektrik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160947aa32e4de---48691438267.pdfIn PDF document text
- https://vetranhtuongmamnon.vn/wp-content/plugins/super-forms/uploads/php/files/0nndd0aia71l1cmlbs9tqng7bh/ropugi.pdfIn PDF document text
- http://sarahscupcakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e484c9df5ea---57577681023.pdfIn PDF document text
- http://www.alexgis.com/siteuploads/editorimg/file/17003044367.pdfIn PDF document text
- http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16085f1b713fe9---tuzurerisa.pdfIn PDF document text
- http://fijiembajak.com/uploads/ck_uploads/files/5064585559.pdfIn PDF document text
- http://yasaitogo.com/uploads/files/620953864.pdfIn PDF document text
- http://mamnonlittlesun.com/upload/files/nawebipikamemavetewo.pdfIn PDF document text
- http://accessiblevehicleservices.com/userfiles/file/vokuvowonolariponegelazum.pdfIn PDF document text
- http://uniquecharacters.com/upload/files/30355297789.pdfIn PDF document text
- http://sys-svinding.dk/userfiles/file/xesudusejapuru.pdfIn PDF document text
- http://sad-azov.ru/wp-content/plugins/super-forms/uploads/php/files/a2b8f9b8711b2d4104960e99b10d62cc/59499343555.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=worksheets+for+the+class+7+on+area+and+perimeterPDF 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_off0000f569.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF569 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010d7b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D7B | 16460 bytes |
SHA-256: 366f9e06712abee5cb345e5014f8d6e2ce981d27f7bd1daec654e29408b17ac2 |
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font_02_sfnt_off0001383a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1383A | 11020 bytes |
SHA-256: b48994591b81e4f93ae98847377bed16467bad7976cf0d8d635a9d079ec1c9ed |
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