MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
The PDF file was flagged by multiple heuristics as a link farm, with many URLs pointing to compromised CMS uploads and disposable hosting. The ML classifier and ClamAV also strongly indicated maliciousness, specifically identifying it as a phishing trojan. The document body, though heavily obfuscated, contains references to wkhtmltopdf and a date, suggesting it was generated programmatically to host these malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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 http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098dcb7dd5a2---xiguwawidaruxinewuwuwek.pdf In PDF document text
- https://widepolymers.com/userfiles/file/jemeratidejopab.pdfIn PDF document text
- http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/1608064bad18cd---33210194219.pdfIn PDF document text
- http://www.x454.com/wp-content/plugins/super-forms/uploads/php/files/nu2d2j31b2brrvub4e0pdso7k1/71533681545.pdfIn PDF document text
- https://anukulagrotech.com/userfiles/file/62652378438.pdfIn PDF document text
- http://chocolatycakes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f0d7ada9f7---mawetufeguka.pdfIn PDF document text
- http://dom-nenilovo.ru/wp-content/plugins/super-forms/uploads/php/files/d63c9f6131d08db21c8e5e892bad4de1/laxelikegesare.pdfIn PDF document text
- http://daydala.com/userfiles/file/viruzipi.pdfIn PDF document text
- http://studiotecnicoarduini.eu/userfiles/files/99548366550.pdfIn PDF document text
- https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/160803c9e9b8e7---gamevuwafoxoj.pdfIn PDF document text
- http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086943df01fc---zenitelutonobudedu.pdfIn PDF document text
- https://hartwellcook.com/wp-content/plugins/super-forms/uploads/php/files/1b990c932d3a6bc7c9b23f6b0d7de0d4/92106839232.pdfIn PDF document text
- https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608bd8522f40e---ponuposexuparonawobuduzev.pdfIn PDF document text
- https://islandsvefir.is/wp-content/plugins/super-forms/uploads/php/files/s54g3fkaj62kr30rf6a096mluj/63052277439.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=chord+lagu+eric+clapton+tears+in+heavenPDF 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://scripts.sil.org/OFLIn 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_off0000d164.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD164 | 5300 bytes |
SHA-256: 2de2170aca08fee35fa928fe09b729ee4fb716e241f1069dc692656e16f5dbcc |
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font_01_sfnt_off0000e369.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE369 | 11720 bytes |
SHA-256: 1de2f69e83d7232662207acfb7dcf6257067e68d44e3a71e88101cc590b9a4cb |
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font_02_sfnt_off00010b91.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B91 | 16076 bytes |
SHA-256: e7bbf0bca74f6ba17897bef3710127efb44abcf9298e3904bb3957032cc1d2c1 |
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