MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file is identified as malicious by ClamAV and an ML classifier, and exhibits characteristics of a link farm. Multiple heuristics indicate the PDF contains numerous external links, with some pointing to compromised CMS uploads and disposable hosting. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure suggests it is designed to redirect users to potentially harmful external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9987
Heuristics 7
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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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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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 http://grossbuch.com/upload/file/moziwibufavijaleraxa.pdf In PDF document text
- https://www.natursany.com/ckfinder/userfiles/files/mogifenopelusekalopeba.pdfIn PDF document text
- http://pkpneu.cz/userfiles/file/tebakonapowon.pdfIn PDF document text
- http://www.ondebiz.com/userfiles/file/ledudos.pdfIn PDF document text
- http://carzip.biz/files/uploads/files/13543643385.pdfIn PDF document text
- https://nmg.lv/img/uploads/files/27405556716.pdfIn PDF document text
- https://10kshot.com/customerinterview/ckfinder/userfiles/files/vurasevevijakikimu.pdfIn PDF document text
- http://concilianavarra.com/userfiles/files/tarufurerefumetosizufi.pdfIn PDF document text
- http://massvt.sk/editor_uploads/system/files/farudus.pdfIn PDF document text
- http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/cgmftbqcmq3pr9j7n8jap3ine1/sunexawawafurevulevatom.pdfIn PDF document text
- http://muntepa.com/userfiles/files/10443761766.pdfIn PDF document text
- http://ettorebelfioreliutaio.it/userfiles/files/zojupaburatosezuvigag.pdfIn PDF document text
- https://www.landalastadservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/161448b1450663---9045704750.pdfIn PDF document text
- https://www.burit.net/wp-content/plugins/formcraft/file-upload/server/content/files/1612ec6fe80e49---70502517619.pdfIn PDF document text
- https://hcs1000.org/wp-content/plugins/super-forms/uploads/php/files/fa22b6f9fff10a1fc7570d8e946b2170/tesunatevimiku.pdfIn PDF document text
- http://hoangminhphatkorea.com/webroot/img/files/tudadejobebujivofak.pdfIn PDF document text
- http://lotusromeo.fr/app/webroot/files/userfiles/files/lonuvenagirar.pdfIn PDF document text
- http://mxagproducts.com/upload/browse/file/25912320801.pdfIn PDF document text
- https://www.asoriofrio.org/ckfinder/userfiles/files/63176958037.pdfIn PDF document text
- http://iiiemjobs.com/FCK_Editor_Images/files/96922227544.pdfIn PDF document text
- https://kalashad.com/userfiles/file/vosov.pdfIn PDF document text
- https://www.gico.ge/ckfinder/userfiles/files/tijewakawatu.pdfIn PDF document text
- http://engcaphone.com/_UploadFile/Images/file/33100353500.pdfIn PDF document text
- http://www.dogwoodagility.nl/ckfinder/userfiles/files/vosujibatulodevusobinaru.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=saria%27s+song+12+hole+ocarinaPDF 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://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_off0000e87e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE87E | 21832 bytes |
SHA-256: bd13a94333a1639c7c6fdfec90a1c37090b17b4f3e0f1500beabd9d1adedad15 |
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font_01_sfnt_off000121c0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x121C0 | 10692 bytes |
SHA-256: cc229e896eca58e6719b18194965aa30028417b10b098e0f6c0dd901aedf1b09 |
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font_02_sfnt_off00013a42.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13A42 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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