MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is a common technique for executing malicious code. Additionally, it features a link farm with multiple URLs hosted on various domains, some of which are identified as compromised WordPress uploads. The presence of these elements, combined with a high ML classifier score and ClamAV detection, strongly suggests a phishing or payload delivery attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://ecodiagnost.com/ckfinder/userfiles/files/kuralidu.pdf In PDF document text
- http://fatename.com/uploads/files/202109061816399376.pdfIn PDF document text
- https://reaga.net/js/ckfinder/userfiles/files/38236644267.pdfIn PDF document text
- http://vlaamspatientenplatform.be/_plugin/ckfinder/userfiles/files/gotejuzegomoxofaxuvugas.pdfIn PDF document text
- https://firsatpin.com/calisma2/files/uploads/15785148507.pdfIn PDF document text
- https://colegiumaniucarei.ro/ckfinder/userfiles/files/44884665958.pdfIn PDF document text
- http://traktor-tv.de/sites/default/files/file/1756276964.pdfIn PDF document text
- https://stef-nancy.fr/upload/document/1662033090.pdfIn PDF document text
- http://parkwestresidences.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142d1fb43cf0---73423239758.pdfIn PDF document text
- http://www.ruben.pl/ckfinder/userfiles/files/72381421710.pdfIn PDF document text
- https://member-amz-seller-system.de/wp-content/plugins/super-forms/uploads/php/files/8cd17f0c0019442e5290ad63ee9014df/97990677804.pdfIn PDF document text
- http://theponghop.com/upload/files/pujirogefetelezupi.pdfIn PDF document text
- https://biocoop.legreniervert.fr/ckfinder/userfiles/files/jaxujomilu.pdfIn PDF document text
- http://accessprecision.com/userfiles/file/25535667165.pdfIn PDF document text
- https://beaufortbond.com/wp-content/plugins/super-forms/uploads/php/files/c4bf9d86531ff8ed7e0735b4eb6df3f5/vomiruvulozisejidubuz.pdfIn PDF document text
- http://www.css-jp.com/upfile/files/2021/09/18/38626320034.pdfIn PDF document text
- http://costanzolegal.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/3920058967.pdfIn PDF document text
- https://ever-progress.com/upload/files/vasuzabibaxisev.pdfIn PDF document text
- http://jmvlpslimited.com/ci/userfiles/files/vilezebomo.pdfIn PDF document text
- http://tbeaindia.com/userfiles/file/besaninoxujakev.pdfIn PDF document text
- http://gz-theoutfit.com/UploadFiles/FCKeditor/20210904132354.pdfIn PDF document text
- https://khangle.vn/uploads/images/files/gutupatudozojezutixuxo.pdfIn PDF document text
- https://pre-www.bridge-college.com/uploaded/ckeditor/files/75681202812.pdfIn PDF document text
- https://www.delaneyllc.com/ckfinder/userfiles/files/fuwufad.pdfIn PDF document text
- http://sictombbi.fr/ckfinder/userfiles/files/nagesege.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=accidentally+deleted+text+thread+androidPDF 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_off0000d2d2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD2D2 | 17708 bytes |
SHA-256: a407ac91011f2446fce9a12b2af14fb052284ae4fa8ae4a3f8123c7cf191c83a |
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font_01_sfnt_off00010077.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10077 | 10496 bytes |
SHA-256: d4dd94bfcfc33852a62bbf6f0a3c53b09373a31ae909bafc017e245d724c5931 |
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font_02_sfnt_off00011855.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11855 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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