MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm on disposable hosting and compromised WordPress sites, suggesting a phishing or malware distribution lure. Although no scripts were explicitly extracted, the PDF structure and embedded URLs point towards techniques like T1204.001 (User Execution: Malicious Link) and potentially T1059.007 (JavaScript) if active content was present but not detailed.
Machine Learning
- Nyx PDF Classifier malicious score 0.9971
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 https://www.siemers-deutschmann.de/wp-content/plugins/super-forms/uploads/php/files/lc007718indttkns3brprff5bg/99845481292.pdf In PDF document text
- http://cleanking.net/userData/board/file/43264847845.pdfIn PDF document text
- http://sergeybazarov.ru/file/perexuviduropowe.pdfIn PDF document text
- https://him-home.ru/wp-content/plugins/super-forms/uploads/php/files/6f5725ac7138ee1b4176b6b8c9fbda03/folaxizadifawiwotupes.pdfIn PDF document text
- http://assotechne.eu/userfiles/files/12728615049.pdfIn PDF document text
- https://atl-50.com/files/file/82151341789.pdfIn PDF document text
- https://egf.tw/test2/images/file/90447465919.pdfIn PDF document text
- http://nnk.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1608c8b1ea30ef---52561248225.pdfIn PDF document text
- https://www.northwoodmedical.ca/wp-content/plugins/super-forms/uploads/php/files/usfmqr59clqgvb457lucq7900o/39091896642.pdfIn PDF document text
- http://csc010.com/userfiles/file/20210724082140_3o7ru9.pdfIn PDF document text
- http://hagelkonzept.de/userfiles/file/80265718119.pdfIn PDF document text
- https://mziagroup.com/wp-content/plugins/super-forms/uploads/php/files/rdnp0d7u5f95etrlt4m7118v92/14286565319.pdfIn PDF document text
- http://technoculture.cz/admin/upload/file/85415247970.pdfIn PDF document text
- http://www.consorcio.edu.pe/wp-content/plugins/formcraft/file-upload/server/content/files/160a7b9660f98a---belubapimiweribedu.pdfIn PDF document text
- http://farashimirooz.com/files/85790684744.pdfIn PDF document text
- https://northcoteplaza.com/userfiles/file/rikodaruve.pdfIn PDF document text
- https://rittenhousesmiles.com/wp-content/plugins/super-forms/uploads/php/files/c5b0e82bacab838c8272c4a2fbe63f24/libijawibivise.pdfIn PDF document text
- http://www.ebsjosepirosamaria.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b10837d829---449155138.pdfIn PDF document text
- http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/1607010b1b489e---53306281887.pdfIn PDF document text
- https://shrmivirtual.org/wp-content/plugins/super-forms/uploads/php/files/35ef7ed07c7c0a1dde6f0ab16c440e0b/wawitosiwulekemagumug.pdfIn PDF document text
- http://www.oknookna.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160b8a9fa603a2---saxokuvipatixiganadidelap.pdfIn PDF document text
- https://asesoriagade.com/app/webroot/files/files/ralosonefulojilegule.pdfIn PDF document text
- https://areshin.ru/wp-content/plugins/super-forms/uploads/php/files/4d1589fb00f3317125bb7003a09e15e0/88407302330.pdfIn PDF document text
- http://ecovn.vn/uploads/news_file/85586452098.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=principles+of+directing+pdfPDF 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_off0000bbe7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBBE7 | 15096 bytes |
SHA-256: a8a125fbd31d775ff8be20ae6c199e6f08c6d0375410938e8b1dabe464be7d50 |
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font_01_sfnt_off0000e20c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE20C | 10636 bytes |
SHA-256: 72c1f7dd8c032830fcbdd77189b72147b3be7f57d0e2cc07aa322328fb3e6026 |
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font_02_sfnt_off0000fa3b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA3B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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