MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many of which point to compromised WordPress sites or are structured as link farms on disposable hosting, suggesting a phishing or malware distribution scheme. The presence of external URI heuristics further supports the attack pattern of directing users to potentially harmful external resources.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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://drafthe.ru/uplcv?utm_term=citi+points+to+miles PDF link annotation
- http://medizator.ru/ckfinder/userfiles/files/60835574940.pdfIn PDF document text
- https://stvietnam.net/luutru/files/mefosumur.pdfIn PDF document text
- http://www.zav-mito.si/wp-content/plugins/formcraft/file-upload/server/content/files/16143ecc692b03---vinepuzukaz.pdfIn PDF document text
- https://italvaping.com/file/41982786474.pdfIn PDF document text
- https://immsac.pe/sgi_userfiles/userfiles/files/kerelipujiwusirudidi.pdfIn PDF document text
- http://www.oe.com.tw/ezadmin/ckfinder/userfiles/files/sedazutuzopiro.pdfIn PDF document text
- http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/80uqli459cpse4abgsk68210r5/93032574501.pdfIn PDF document text
- https://thehouseconcert.com/ckfinder/userfiles/files/59911298608.pdfIn PDF document text
- https://www.autopsrus.com/ckfinder/userfiles/files/96174494073.pdfIn PDF document text
- http://gynekolog-zilina.sk/uploads/fck/file/gesekobi.pdfIn PDF document text
- http://drapikowski.pl/uploaded/fck_files/file/53130547263.pdfIn PDF document text
- https://inwestorfinanse.pl/userfiles/file/tavelur.pdfIn PDF document text
- https://claphamjunction.com.au/wp-content/plugins/super-forms/uploads/php/files/91b0687a548e4858e7abc750fbe525fc/12158137083.pdfIn PDF document text
- https://leise.ru/admin/ckfinder/userfiles/files/dudagawabobojudiguta.pdfIn PDF document text
- http://tbeaindia.com/userfiles/file/selesab.pdfIn PDF document text
- https://cbdc.co/uploads/ckfinder/userfiles/files/rokafovogudateva.pdfIn PDF document text
- https://netron.pt/app/webroot/media/files/woxarav.pdfIn PDF document text
- http://yuhenganquan.com/userfiles/file/20210902092016_1204764231.pdfIn PDF document text
- http://hyunsin.net/userfiles/file/43985770316.pdfIn PDF document text
- http://dental-forum.ru/userfiles/file/delotabizebelesavapube.pdfIn PDF document text
- http://micruts.org/userfiles/file/44101899309.pdfIn PDF document text
- http://travel-door.com/userfiles/file/rolabe.pdfIn PDF document text
- 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_off0000af3e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAF3E | 16548 bytes |
SHA-256: 3829ee8bcc81f4db8bdad0676a7dbf5f0ead0e32bc218725d7deb345c3a05a54 |
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font_01_sfnt_off0000d94d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD94D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f164.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF164 | 10184 bytes |
SHA-256: a47adb9e11b6ba1679d22860669cb1bbdfc90261f9942bac070090980b8d3835 |
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