MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of links, many pointing to compromised WordPress sites hosting other PDF files. This behavior is indicative of a link farm designed to distribute malicious content or facilitate phishing. The ClamAV detection and ML classifier strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://yarsan.ru/wp-content/plugins/super-forms/uploads/php/files/9354b4802b9edb01deb57f729a8220b1/depetodogoxufeb.pdf In PDF document text
- https://broadstripe.com/wp-content/plugins/super-forms/uploads/php/files/1e17992942e7096cb7f05bda82e8f851/lavifab.pdfIn PDF document text
- https://purebodycare.courses/wp-content/plugins/super-forms/uploads/php/files/f28oqds16ojc5im3hr0doih2aj/10742338748.pdfIn PDF document text
- http://vonschickenconcord.com/uploads/files/53840672355.pdfIn PDF document text
- https://elitteaccesorios.com/wp-content/plugins/super-forms/uploads/php/files/ev55oku77v0ltbfb84k5abj94m/42914216791.pdfIn PDF document text
- http://www.tiande-global.com/ckfinder/userfiles/files/24360698268.pdfIn PDF document text
- https://www.glasswindowequipment.com/wp-content/plugins/super-forms/uploads/php/files/b27235beb30556d8af6a97436c5c8866/repelozuvenigetir.pdfIn PDF document text
- http://euro520.net/userfiles/file/1623428727239127689.pdfIn PDF document text
- https://tiguan-wiki.ru/file/fibix.pdfIn PDF document text
- http://moscow-vernisage.com/files/files/17876079600.pdfIn PDF document text
- http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a10ec044d9---zajaxopap.pdfIn PDF document text
- https://dubaimotorcycletours.com/uploaded_images/files/pigosakuxomegamebejorem.pdfIn PDF document text
- https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/1608e7f1ce83ab---87323527518.pdfIn PDF document text
- http://www.deep2001.com/images/library/File/piketewipevebo.pdfIn PDF document text
- https://www.kadeavenue.com/wp-content/plugins/super-forms/uploads/php/files/617f362f046066bbd3e8e888d78adb51/magidejasefolune.pdfIn PDF document text
- https://monarchwinemerchants.com/wp-content/plugins/super-forms/uploads/php/files/a4236238e454a439713f27f068e314e2/20541615133.pdfIn PDF document text
- http://theydeserveastamp.org/wp-content/plugins/formcraft/file-upload/server/content/files/1612c9f4b3f500---gunifab.pdfIn PDF document text
- http://adamlegal.com/userfiles/file/badap.pdfIn PDF document text
- http://xn--e1aazeoc7d.xn--p1ai/images/shared/file/pirifapemoseluzetomufaz.pdfIn PDF document text
- https://www.kadeavenue.com/wp-content/plugins/super-forms/uploads/php/files/b43102f8478464510cd9e37d405fdb75/bamevokumapoziwulegak.pdfIn PDF document text
- https://kalatranslation.co.uk/wp-content/plugins/super-forms/uploads/php/files/s6dhc7de46ult1cfihm8f0t4pe/mezabijokux.pdfIn PDF document text
- https://alkathirilaw.com/userfiles/files/59487499460.pdfIn PDF document text
- https://holzhaus-suedtirol.it/wp-content/plugins/formcraft/file-upload/server/content/files/160d9c48818a43---56097582537.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=priority+health+medicare+provider+manualPDF 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_off0000c3e4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC3E4 | 10892 bytes |
SHA-256: d108ebcd9bd7ac35bfca3eb8a9f4615cc773b571646786e9cda5dc7c434547dc |
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font_01_sfnt_off0000dceb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCEB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f4fd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4FD | 16264 bytes |
SHA-256: ec479f96982e1e832c0fdf99f64bfcdfcaf2818e7668ab86e99b304809d5328a |
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