MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm, with numerous URLs pointing to potentially compromised WordPress sites and disposable hosting. The primary purpose appears to be directing users to external, potentially malicious, content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://congthuonghotel.vn/app/webroot/files/images/pages/files/lixubudaxipeweforajese.pdf In PDF document text
- http://studiotecnicolari.it/userfiles/files/32725808584.pdfIn PDF document text
- https://szabobuszberles.hu/files/files/67237188485.pdfIn PDF document text
- http://www.hgbehringer.de/img/files/files/fexasukenujupigebufip.pdfIn PDF document text
- https://renfrewareahealthvillage.ca/ckfinder/userfiles/files/kiboxofuwofudifanogawux.pdfIn PDF document text
- http://sportingclubalbinia.eu/userfiles/files/23772056898.pdfIn PDF document text
- http://lab4050.com/upload/editor/file/xukawikobuxa.pdfIn PDF document text
- http://glassick.com/userfiles/file/filatavil.pdfIn PDF document text
- https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/161448059edcd4---vilipisusalowazutuxe.pdfIn PDF document text
- https://stancijanegrin.com/userfiles/file/37106237814.pdfIn PDF document text
- http://rasciindia.com/firetech/ckupload/files/vuvulumotu.pdfIn PDF document text
- http://apvn.info/userfiles/file/84240391547.pdfIn PDF document text
- https://lerong.vn/wp-content/plugins/super-forms/uploads/php/files/cae68764c032c1f6cb888c56d2327150/retokoxesa.pdfIn PDF document text
- http://educasters.co/ckfinder/userfiles/files/rawapumigoruk.pdfIn PDF document text
- http://feg.vn/uploads/files/41107120593.pdfIn PDF document text
- http://nnk.gr/wp-content/plugins/formcraft/file-upload/server/content/files/16138db6175b7a---79411351650.pdfIn PDF document text
- https://livres-arts.com/ckfinder/userfiles/files/7336533773.pdfIn PDF document text
- http://geology.ie/wp-content/plugins/formcraft/file-upload/server/content/files/1614618d90c485---9844948596.pdfIn PDF document text
- http://krasneclanky.cz/uploads/78632163779.pdfIn PDF document text
- https://musikkursus.dk/userfiles/file/tuweruxuweliluk.pdfIn PDF document text
- http://primaria-ciocirlia.ro/media/file/74073578452.pdfIn PDF document text
- http://gruppocinofilomarsalese.com/userfiles/files/tivajoxogifaj.pdfIn PDF document text
- http://brilliantsolarpaneling.com/userfiles/file/davami.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=android+tv+screensaverPDF 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_off0000c0e0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC0E0 | 10364 bytes |
SHA-256: 90086432ddc5de1ad70043297e9d47ccb88b2811efb8374c043797f32623485c |
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font_01_sfnt_off0000d87a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD87A | 16520 bytes |
SHA-256: 032b33dd4c90c7e9526a74ec9b2feded3f67b21cf06a6c9288c6ddabbe884d98 |
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font_02_sfnt_off000102e0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x102E0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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