MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links pointing to compromised WordPress sites, which in turn host other PDF files. This indicates a link farm designed to obscure the ultimate destination, likely a phishing or malware delivery site. ClamAV detection and ML classification strongly suggest malicious intent, with the PDF_SEO_DISPOSABLE_LINK_FARM heuristic confirming the use of disposable hosting for link distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9860
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://www.telsercom.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dfa1243523b---31078955305.pdf In PDF document text
- https://whiteelephant.co.in/wp-content/plugins/super-forms/uploads/php/files/e22d5aa0ee7feca002c8199bfac63971/tiwazebefif.pdfIn PDF document text
- http://www.risingstars.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160ab3eb9ee810---47772931277.pdfIn PDF document text
- http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607feebb95f85---57986939667.pdfIn PDF document text
- https://humanistbeauty.com/wp-content/plugins/super-forms/uploads/php/files/dfns51ggf6vu57tdmhsqlk8uvl/78039796464.pdfIn PDF document text
- https://infrastone.com/userfiles/files/lisusidejupupewaderal.pdfIn PDF document text
- http://charontrade.hu/data/file/bukalaxefa.pdfIn PDF document text
- https://www.jahnigterbraak.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607afc5d87741---91140689244.pdfIn PDF document text
- https://binarbaidfabrication.com/public_html/userfiles/file/vusobige.pdfIn PDF document text
- http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609fc78a86b98---2309054666.pdfIn PDF document text
- https://amthanhanhsangchinhhang.vn/upload/files/27281460457.pdfIn PDF document text
- https://www.baptistenhardenberg.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b327b3dfe0e---motosudavifawomebat.pdfIn PDF document text
- https://rffsev.ru/wp-content/plugins/super-forms/uploads/php/files/f4f13630683bd35c633a7c6d3b0abedb/59641615610.pdfIn PDF document text
- https://mmagame.com/userfiles/file/44517508926.pdfIn PDF document text
- http://www.advokat.com/app/webroot/img/fck/file/61164440026.pdfIn PDF document text
- http://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ba5718164a---77659776112.pdfIn PDF document text
- https://www.budgetskemaet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160c569e83705b---16683227878.pdfIn PDF document text
- https://shrmivirtual.org/wp-content/plugins/super-forms/uploads/php/files/4298029af97d3408a60cc2a5497c1c60/sivasopapitip.pdfIn PDF document text
- https://bestmiamiturf.com/wp-content/plugins/super-forms/uploads/php/files/bef08abb2e7b2a2163c893e21522d671/vogepevoseduduveteduz.pdfIn PDF document text
- http://cnex.cc/images/blog//file/54999112651.pdfIn PDF document text
- http://www.wallisandemmanuel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160720e5708eb2---29567538873.pdfIn PDF document text
- https://daxitrip.com/basefile/daxitripcom/files/fufek.pdfIn PDF document text
- https://www.andrecampbell.ca/wp-content/plugins/super-forms/uploads/php/files/447e03b35003a21804f8a6f3f6e466fb/gumupumapan.pdfIn PDF document text
- http://akkoryazilim.com/userfiles/file/58471915523.pdfIn PDF document text
- https://carstenrath.com/wp-content/plugins/super-forms/uploads/php/files/aqtii2448cqd0hect5jibhajp3/60326937550.pdfIn PDF document text
- http://kapsalonvogue.nl/files/file/vipevezinabutejuvogasoze.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=inflammatory+cloacogenic+polypPDF 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_off0000ebdc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBDC | 16536 bytes |
SHA-256: 8aaf17fc4cd99177772671b2df750a557309c9415281a9c2f4f7311f709fc4ef |
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font_01_sfnt_off000116cf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x116CF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012ee6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12EE6 | 10720 bytes |
SHA-256: 2306c7b7fbe6c2a387b5bb465cd0eb0d070844b3b212f8d18bc3c57f6aab719e |
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