MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was identified as malicious by ML classifiers and ClamAV, with heuristics indicating it functions as a link farm. Multiple URLs extracted from the document point to compromised CMS uploads and disposable hosting, suggesting a distribution mechanism for further malicious content. The document body is heavily obfuscated and appears to be generated by wkhtmltopdf, lacking readable content but reinforcing the nature of the file as a container for malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://limberhurstgallery.com/imageuploads/file/takebewe.pdf In PDF document text
- http://n3ss.ro/ckfinder/userfiles/files/datiritodefixixijutima.pdfIn PDF document text
- https://www.grandiosa.is/wp-content/plugins/super-forms/uploads/php/files/2bojvftl1ai4od4gig6vs7f8d1/66505170989.pdfIn PDF document text
- https://firsatoyun.com/calisma2/files/uploads/jemulegavagisuso.pdfIn PDF document text
- http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161398ce225ea0---52933441818.pdfIn PDF document text
- https://agape4u.org/userfiles/file/rejojuge.pdfIn PDF document text
- http://srcchaika.ru/files/uploads/files/20055054101.pdfIn PDF document text
- https://emotionalgift.youngzonejewelry.com/ckfinder/userfiles/files/jerijuxadixukudigusu.pdfIn PDF document text
- http://bftt.marketsearching.com/upload/files/16405626390.pdfIn PDF document text
- https://777mto.org/contents/files/82901948905.pdfIn PDF document text
- http://rayanchem.com/d/files/gamaluwifavawidik.pdfIn PDF document text
- http://joltiy.ru/uploads/files/gajomuwumegabivowov.pdfIn PDF document text
- https://lwim-ouargla.dz/ar/files/bitawaxuk.pdfIn PDF document text
- http://baracenter.be/userfiles/file/gosoluxebujawo.pdfIn PDF document text
- https://rh-h1tapi-turbo.com/contents/files/36185054491.pdfIn PDF document text
- http://www.sas.edu.mn/ckfinder/userfiles/files/zunabinuvakakenexolagezid.pdfIn PDF document text
- https://floraplant.gr/FCKeditor/userimages/file/62164960044.pdfIn PDF document text
- https://hchoanglong.vn/userfiles/file/78298993901.pdfIn PDF document text
- https://kurashi-kyoiku.com/cms/dat/upimg/file/jetijubobapelujidavuvot.pdfIn PDF document text
- http://vnos.vn/app/webroot/uploads/files/folazomaseburesugobovem.pdfIn PDF document text
- https://pataniforum.com/admin/jquery/ckfinder/userfiles/files/fekumoxutez.pdfIn PDF document text
- https://dm288.com/slicice/file/guwutodivasugoxixe.pdfIn PDF document text
- http://enricobarraco.com/files/letiwiwamabegemaf.pdfIn PDF document text
- http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/1613ace9df32a1---23034247719.pdfIn PDF document text
- http://ylphs.com/ckfinder/userfiles/files/kuxagupajowupaxag.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=minecraft+full+download+apkPDF 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_off0000c911.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC911 | 18572 bytes |
SHA-256: 090b284524c3b2ccdba6bad792f5c358cf517a4601ad8c25463edaaf0317117f |
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font_01_sfnt_off0000f911.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF911 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011128.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11128 | 10716 bytes |
SHA-256: 2ff7500d76a45791997d317213139b2395cb7a6e11c0014fb7d9cc320c1a261b |
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