MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains a link farm pointing to compromised WordPress sites, likely intended to host and distribute further malicious content. The presence of multiple links on disposable hosting and compromised CMS uploads indicates a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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://voolabs.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141ff43ef25e---10034318291.pdf In PDF document text
- http://zgic.ru/!upload/files/vapuvarekamab.pdfIn PDF document text
- https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/1613fd56b2d42b---vilarulatominotolovilo.pdfIn PDF document text
- http://wccflooring.com/userfiles/files/xidoxazadowefopifunem.pdfIn PDF document text
- http://vetportonaccio.it/userfiles/files/74480985797.pdfIn PDF document text
- http://xenangheli.vn/public/files/88763542410.pdfIn PDF document text
- http://lnv-cnc.gr/userfiles/file/pirera.pdfIn PDF document text
- http://www.inhd.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613a483dac599---xuxufokelonej.pdfIn PDF document text
- http://webcertain.net/contentupload/fckeditorUploads/organization_/file/paweruloxume.pdfIn PDF document text
- http://inggeo.eu/userfiles/files/fetosapilogumewopipimu.pdfIn PDF document text
- http://dailitara.lt/bites/uploads/file/91395983948.pdfIn PDF document text
- http://ibrahimabuomira.com/ckeditor/ckfinder/userfiles/files/redulaxewopon.pdfIn PDF document text
- http://tentauto23.ru/ckfinder/userfiles/files/rolovalitufidodudofa.pdfIn PDF document text
- http://fongyoskert.hu/userfiles/files/juwuk.pdfIn PDF document text
- http://tainanrup.longi.tw/uploadfiles/files/20210902_080159_1290.pdfIn PDF document text
- http://sns.hu/_user/file/50242713099.pdfIn PDF document text
- https://hmjrgoldhockey.org/wp-content/plugins/super-forms/uploads/php/files/f3b851450fc75f99b2fec627582fd812/gusabizarosuvomu.pdfIn PDF document text
- https://www.tctnanotech.com/wp-content/plugins/super-forms/uploads/php/files/c4e53a50e3f3f0340e5c606ddbd6b367/33631521750.pdfIn PDF document text
- http://sportsbettingconsultants.net/cote_dor_import/admin/ckfinder/userfiles/files/nafajomegutojurozupu.pdfIn PDF document text
- https://omegaplus.bg/uploads/pages/files/10734271469.pdfIn PDF document text
- https://hankilfood.com/upfile/files/wepewesiderivirevis.pdfIn PDF document text
- http://acsalma.hu/userfiles/files/ruliruwikepur.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=vpn+master+fast+and+unlimited+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_off0000d4f8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD4F8 | 17720 bytes |
SHA-256: 3ef6442167afda10093dc665d54ae3ffdf07c05ccecafd9dd5c8bb09bc22408c |
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font_01_sfnt_off0001030d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1030D | 10700 bytes |
SHA-256: 9e713c6adc53d7f535aa7272bd4af0ddbc272245d530024948c73535e180f5f6 |
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font_02_sfnt_off00011b96.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B96 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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