MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It functions as a link farm, containing numerous URLs pointing to compromised WordPress upload directories and other potentially malicious sites. The document body is unreadable, but the heuristics indicate a deliberate attempt to host a large number of links, likely to distribute malware or conduct phishing attacks.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://cspdental.com/wp-content/plugins/super-forms/uploads/php/files/e26c1650671893a108625fff9b806760/witibowamulovun.pdf In PDF document text
- https://www.lightingsolutionsal.com/wp-content/plugins/super-forms/uploads/php/files/9bbb43957de0cb3dbcc598859d154b33/24080545635.pdfIn PDF document text
- https://appvid.eus/userfiles/files/9297908344.pdfIn PDF document text
- https://megalightgroup.lv/uploads/files/vivofiditepasopogimaxore.pdfIn PDF document text
- https://levin-dent.ru/wp-content/plugins/super-forms/uploads/php/files/7bedd4262ef5750ddc814c10c4370b37/8026817329.pdfIn PDF document text
- https://markiza-trade.ru/admin/ckfinder/userfiles/files/8294910939.pdfIn PDF document text
- http://grani-tonkogo-mira.ru/wp-content/plugins/super-forms/uploads/php/files/75f683418bf5ce4f18d30f2e9c00502d/6307876582.pdfIn PDF document text
- http://tilestone-pools.com/i/File/vuxupexiginub.pdfIn PDF document text
- http://thegibbsfamilyreunion.com/clients/d/d9/d929505c7faf6263097cc97620c39d65/File/befiwokezazadetekobigaw.pdfIn PDF document text
- https://moniimpex.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c732e971515---jezutatiwevuw.pdfIn PDF document text
- http://alituncer.com/userfiles/file/38797145626.pdfIn PDF document text
- http://akkoryazilim.com/userfiles/file/74267112318.pdfIn PDF document text
- https://hafa-verein.de/wp-content/plugins/super-forms/uploads/php/files/62d3adb80237fe13997a33aaa299c08c/lonowaperumomupexevumu.pdfIn PDF document text
- http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608a6f083af47---89538263985.pdfIn PDF document text
- http://optimus.org.au/wp-content/plugins/formcraft/file-upload/server/content/files/160c3246ad5bc2---89368124908.pdfIn PDF document text
- https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160a419d746c18---98637242668.pdfIn PDF document text
- http://walker-doss.com/clients/4/45/450b4a4af5ff3f13851793278d9c7ef8/File/sudunajo.pdfIn PDF document text
- https://vaytieudungtragop.com.vn/wp-content/plugins/super-forms/uploads/php/files/kbmcdjurpihttod3ecgd55j9ik/44291809699.pdfIn PDF document text
- http://florylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/dogefusarelem.pdfIn PDF document text
- https://alfa-pechati.ru/wp-content/plugins/super-forms/uploads/php/files/f1c2af032d4101290aed7c977da96032/kuninu.pdfIn PDF document text
- http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160a4b0703f9c8---25347689781.pdfIn PDF document text
- http://uat.ideadunes.com/projects/ideadunes-portfolio-site/wp-content/plugins/formcraft/file-upload/server/content/files/1607594741628c---rutejudegewopivizopeboxar.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=reported+speech+questions+and+imperatives+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_off0000ce61.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCE61 | 11296 bytes |
SHA-256: 66dbf53dff824be96b5744d040e4d61f85a983b0c5b5f29e945b1a62cde502fe |
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font_01_sfnt_off0000e894.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE894 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000100a6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100A6 | 17376 bytes |
SHA-256: b83db1b30cbddcad93e125cc5990fb10f25f154b7a198774d930cd99a4ebc751 |
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