MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file was identified as malicious by ClamAV and an ML classifier, and exhibits characteristics of a link farm. It contains numerous external URIs, many of which point to compromised or disposable hosting, suggesting an attempt to lure users to malicious sites. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic further supports this, indicating a pattern of using such documents for SEO manipulation or phishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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://k-sta.kr/FileData/ckfinder/files/20210918_68904218FFD989E9.pdf In PDF document text
- https://sbsoftware.ro/admin/userfiles/file/96530839294.pdfIn PDF document text
- http://uniradioweb.info/userfiles/files/18421907158.pdfIn PDF document text
- http://anhuifan.com/upload_fck/file/2021-9-2/20210902102452430120.pdfIn PDF document text
- http://jedzenie365.pl/ckfinder/userfiles/files/72515530964.pdfIn PDF document text
- https://jajugroup.com/ckfinder/userfiles/files/fepegemibabejomekawozivuj.pdfIn PDF document text
- http://napiarsaigh.com/images/sikoropufalawevuferoba.pdfIn PDF document text
- http://www.nandomoraes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614445cff1e23---diloli.pdfIn PDF document text
- http://dakmet.pl/upload/rizazafisig.pdfIn PDF document text
- http://caratow.be/userfiles/file/linukir.pdfIn PDF document text
- http://furkansigorta.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16148d4d4cc144---gajomudoluxidid.pdfIn PDF document text
- http://mopi.eu/ckfinder/userfiles/files/65849331964.pdfIn PDF document text
- http://aqbnb.com/uploadfile/file/97486263256.pdfIn PDF document text
- http://sibmaxi.ru/userfiles/file/bukofaxumofozewoz.pdfIn PDF document text
- http://industrialdevices.in/uploads/65660137630.pdfIn PDF document text
- http://ozdesignhouse.com/app/webroot/uploads/files/95072525407.pdfIn PDF document text
- https://wojczak.pl/userfiles/file/watilenetaxugaputibefo.pdfIn PDF document text
- http://pastoret.it/userfiles/files/44557082892.pdfIn PDF document text
- http://burelomdo.com/ckfinder/userfiles/files/36038872747.pdfIn PDF document text
- http://nktrading.qa/file/files/zosolofituvamomobepiwabor.pdfIn PDF document text
- https://pearproperties.in/userfiles/file/voniv.pdfIn PDF document text
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1614d04599a2ed---82960213369.pdfIn PDF document text
- https://promobryansk.ru/userfiles/files/62523594007.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=harrison+bergeron+questions+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_off0000b2ea.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB2EA | 11004 bytes |
SHA-256: f8f65a865aa36b0aed7d931f733067b701ce91da4657eb70bb17f7dfc5b84e1a |
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font_01_sfnt_off0000cbdd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCBDD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000e3ef.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3EF | 15900 bytes |
SHA-256: c7a5ecd09ed518cf8e7c93aef8b5642cb44c67591ced054768e842b8eea34271 |
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