MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as Pdf.Phishing.Trojan. The document contains numerous links, many hosted on compromised WordPress sites, forming a link farm likely designed to redirect users to malicious or phishing content. Although no scripts were extracted, the presence of these links and the overall detection profile strongly suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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://dabaizhongxue.com/upload_fck/file/2021-5-22/20210522130723611142.pdf In PDF document text
- http://www.veronicaneal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/160797033ccf25---48281161330.pdfIn PDF document text
- https://xn--i1aam8cb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/0465768cf8f71b6525460c2e16f90b76/8023293268.pdfIn PDF document text
- https://actor-conseil.com/files/file/5011271038.pdfIn PDF document text
- https://comodee.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dd88f616ad3---gibok.pdfIn PDF document text
- https://www.golaw.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607f3432170f8---78280153347.pdfIn PDF document text
- http://rheinmotel.com/userfiles/file/dokufolipiganopusolagonib.pdfIn PDF document text
- https://burkina-businessschool.com/business_school/uploads/file/rewagodixaw.pdfIn PDF document text
- http://broadviewlibrary.org/uploaded_bvlib/file/26398133054.pdfIn PDF document text
- http://mictrogiang.com/userfiles/files/22696207477.pdfIn PDF document text
- http://thevisionkharj.com/userfiles/files/37031376411.pdfIn PDF document text
- http://letsbelegal.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/63752603646.pdfIn PDF document text
- https://regeneracion-capilar.com/wp-content/plugins/super-forms/uploads/php/files/ce34e6780416ca1bc819019e9e7717cc/8643329943.pdfIn PDF document text
- https://www.asahinafunnels.com/wp-content/plugins/super-forms/uploads/php/files/fj0ovjh3t3ua7cs8ovtsjuuegp/juposajalofoj.pdfIn PDF document text
- http://www.everhouse.lt/wp-content/plugins/formcraft/file-upload/server/content/files/160ac51aa32d00---2523411061.pdfIn PDF document text
- https://akapacha.com/userfiles/file/zubekozenuzi.pdfIn PDF document text
- https://eliteswimmingpoolsinc.com/wp-content/plugins/super-forms/uploads/php/files/k456lkvrii2nknp337m74p7jm7/2331255734.pdfIn PDF document text
- https://lynnesnaturaltreats.com.au/wp-content/plugins/super-forms/uploads/php/files/b3ad411fa690e713db1f8ac46417534a/lutafoxerabokuneved.pdfIn PDF document text
- https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c1d7f236316---54732973239.pdfIn PDF document text
- https://zazilha.com.mx/wp-content/plugins/super-forms/uploads/php/files/30f5a4a1e83d75d935d5f56a9aa0d623/guzolawikiwijon.pdfIn PDF document text
- http://shethof.ch/cgi-bin/dynamisch/file/8597541661.pdfIn PDF document text
- http://schouteninterieurwerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607a8920535f7---lanobusixanufezebozuxabi.pdfIn PDF document text
- http://www.absolutecateringla.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7f41a44c4a---27034287377.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=mm+of+waterPDF 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_off0000e502.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE502 | 17276 bytes |
SHA-256: 156170fc38016d4bd12f1fc8b39fda5eeb3a1598b0e3256bee40dc3ff5e9542b |
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font_01_sfnt_off00011234.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11234 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012a4b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A4B | 10044 bytes |
SHA-256: 512e0bf2e1cafad28d02846c10278575a2d3dba856ba9052f01359ff583d6db3 |
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