MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF document identified as malicious by ML classifiers and ClamAV. It contains numerous URLs pointing to potentially compromised websites and disposable hosting, indicating a link farm designed to redirect users. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics suggests an attempt to leverage SEO or compromised infrastructure for malicious distribution. No scripts were extracted, but the overall structure points to a phishing or malware delivery attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
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://webmodels.studio/wp-content/plugins/formcraft/file-upload/server/content/files/160c87c8ec9a65---1650512851.pdf In PDF document text
- http://mq-water.net/upload/2396485441.pdfIn PDF document text
- http://bajcsidavidfoto.com/_user/file/wonadavobofedo.pdfIn PDF document text
- http://chpcentre.com/files/file/74305270130.pdfIn PDF document text
- https://cfi-registration.org/buzzboxgift/img/userfiles/files/35169530250.pdfIn PDF document text
- https://3dreamvr.com/wp-content/plugins/super-forms/uploads/php/files/ce987e8b4950cc8111d5f465da5368c7/polobinosik.pdfIn PDF document text
- http://anthonyjcincottalaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/31372256138.pdfIn PDF document text
- https://adbetelparaguay.com/wp-content/plugins/super-forms/uploads/php/files/11a2d43a7830ebd9a219e743b739b49a/99504436060.pdfIn PDF document text
- https://christianklein.eu/Quansis/ckfinder/userfiles/files/9473599910.pdfIn PDF document text
- https://cor.org.ar/wp-content/plugins/super-forms/uploads/php/files/u9o3rglid8lcfnlrdgssk85s08/renedelowepikudoluzaru.pdfIn PDF document text
- https://yuktiedu.com/wp-content/plugins/super-forms/uploads/php/files/1d4a1251ce9c9e1af18a82c75401a0f6/45480986253.pdfIn PDF document text
- http://snft.ro/media/file/50075577476.pdfIn PDF document text
- http://krindustria.com.br/site/wp-content/plugins/formcraft/file-upload/server/content/files/160ca3d4ee7274---46273401909.pdfIn PDF document text
- http://xn--e1aaafipco3bk8gra3b.xn--p1ai/upload_picture/file/marerirumekufepisasik.pdfIn PDF document text
- https://www.ideaklinik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1606ebead24222---busatetavovemanap.pdfIn PDF document text
- https://cms.blauraum.com/wp-content/plugins/super-forms/uploads/php/files/06f52b5890c9513e6efdd593541c7176/40337685094.pdfIn PDF document text
- http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160985e6558f40---99484684605.pdfIn PDF document text
- http://www.itbaloch.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dc37d72d178---98194520597.pdfIn PDF document text
- http://tokyo-sanritsu.com/userfiles/file/9241553005.pdfIn PDF document text
- https://tonwen.org/userfiles/file/fepidulejulezatavu.pdfIn PDF document text
- http://d4storonto.com/clients/e/ed/ed023a0734c265ca673a92d1d81de675/File/44191343000.pdfIn PDF document text
- https://www.jahnigterbraak.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606f14695fb17---zimokuxusojalekolex.pdfIn PDF document text
- https://acp-luxusingatlanok.hu/ckfinder/userfiles/files/sakawewimetofutuwezoxoli.pdfIn PDF document text
- https://www.webhisto.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160ac1a6c9de93---38027876166.pdfIn PDF document text
- http://aedjtjdshbf.pretty-match.com/upload/files/suxinimowovukuvo.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=distinctive+features+in+phonology+exercises+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_off0000c992.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC992 | 11284 bytes |
SHA-256: c3b0d9416165b8546a7ed3ed9367e89d160b8713a11dc31a2151c5ac208e5373 |
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font_01_sfnt_off0000e3e5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3E5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000fbf7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFBF7 | 19260 bytes |
SHA-256: d2442b868b6080c07f74404e69d5ed4bd796ce9df9afcfbcbccbfe8f7f90f5f4 |
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