MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. Numerous URLs were extracted, many of which point to compromised CMS uploads or are hosted on disposable domains, suggesting a link farm designed to redirect users to malicious content. The document body is unreadable, but the heuristics strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://an-ocn.ru/ckfinder/userfiles/files/xasuk.pdf In PDF document text
- https://bataretak.com/img/files/file/41557294517.pdfIn PDF document text
- https://kompaspt2.com/contents/files/27636811199.pdfIn PDF document text
- http://marasintl.com/public/ckfinderuploads/files/fimaw.pdfIn PDF document text
- https://kuechentreff-schmid.de/wp-content/plugins/super-forms/uploads/php/files/4mbluoj5iufvr0lh236lkf80in/wosokuxitirofedakubijufu.pdfIn PDF document text
- https://editora-arara-azul.com.br/site/admin/ckfinder/userfiles/files/xunamazaxowojapig.pdfIn PDF document text
- http://amadpich.com/userfiles/file/40589674983.pdfIn PDF document text
- https://www.getfitcrew.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ec1b3f3340---34563202653.pdfIn PDF document text
- http://moyamoya.center/images/hand_uploaded/files/garefuvavetasomerojutezo.pdfIn PDF document text
- http://www.garriagricola.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135e9f1f29ce---89816851888.pdfIn PDF document text
- http://modamoda.nl/uploads/pic_lib/file/72543505166.pdfIn PDF document text
- http://jlsxjy.com/right/UploadFile/file///2021091316055173499.pdfIn PDF document text
- https://andymullinscommercial.com/home/andy/public_html/ckfinder/userfiles/files/jisuzozopamuno.pdfIn PDF document text
- https://kisikana.hr/UserFiles/files/5174703189.pdfIn PDF document text
- http://hlqh.net/userfiles/file/20210916024909_1920521104.pdfIn PDF document text
- http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/1613066ebb494f---74274523351.pdfIn PDF document text
- https://atx-stroy.ru/wp-content/plugins/super-forms/uploads/php/files/78708c376afb3f2c5f3df2843dc070ad/nabuzobo.pdfIn PDF document text
- http://chinalabware.ru/d/files/8386065795.pdfIn PDF document text
- http://adanateknikservis.web.tr/wp-content/plugins/formcraft/file-upload/server/content/files/161323c657e45c---83820580878.pdfIn PDF document text
- http://robertwestlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/kasutonuzepirepopadi.pdfIn PDF document text
- http://nataliashishkina.com/userfiles/file/18567305348.pdfIn PDF document text
- http://driver-jazda.pl/upload/file/49736313024.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=mod+apk+obbPDF 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_off0000e09b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE09B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f8b1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8B1 | 9868 bytes |
SHA-256: b588f0133c0944c53404ce5f507307726fea136107d245a8f1212895c99ad974 |
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font_02_sfnt_off00010e32.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E32 | 17132 bytes |
SHA-256: 8cdbadcd8690d7b54d8f1989d3d327e3dc980ed2cce7c32b57bb83922d73c828 |
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