MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by multiple heuristics, including a machine learning classifier and ClamAV, indicating malicious intent. The presence of numerous external URIs, many pointing to disposable hosting and utilizing UTM parameters, strongly suggests a link farm designed to redirect users to potentially malicious content. While no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a phishing or malware distribution lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 5
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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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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://queure.ru/uplcv?utm_term=registrare+schermo+android+da+pc PDF link annotation
- http://himalayakebab.irafbrothers.com/shipinc/userfiles/files/jopimupasewix.pdfIn PDF document text
- https://www.sonorisation-auxerre.fr/ckfinder/userfiles/files/95455971642.pdfIn PDF document text
- https://aarhuskortet.dk/images/file/93947488934.pdfIn PDF document text
- http://jiachuankeji.com/upload_fck/file/2021-9-12/20210912012925993796.pdfIn PDF document text
- http://bassbasement.org/userfiles/file/vutovedejeselelew.pdfIn PDF document text
- http://daltan.hu/userfiles/file/59498992555.pdfIn PDF document text
- https://stka.gr/ckfinder/userfiles/files/47654956353.pdfIn PDF document text
- https://scout-educationguide.com/userfiles/file/39174236084.pdfIn PDF document text
- http://bobas24.pl/Upload/file/5540071903.pdfIn PDF document text
- http://sutipatika.hu/userfiles/files/33476110950.pdfIn PDF document text
- http://hermandadperdon.es/userfiles/file/3053196503.pdfIn PDF document text
- http://restauraceeverest.cz/userfiles/file/51478472115.pdfIn PDF document text
- http://mavelikaradiocese.org/rapha/ckfinder/userfiles/files/7586406766.pdfIn PDF document text
- http://gevenschoenen.nl/ckfinder/userfiles/files/jowet.pdfIn PDF document text
- http://www.inhd.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613c6a6879343---35770001114.pdfIn PDF document text
- http://originalavto.ru/userfiles/file/bovagedoletojutewowajas.pdfIn PDF document text
- https://www.inkfactory.pk/wp-content/plugins/formcraft/file-upload/server/content/files/16131ca94d21d4---57030388688.pdfIn PDF document text
- http://inspiredindianfoundation.org/uploads/giwiderakozi.pdfIn PDF document text
- http://attilacenter.org/userfiles/file/78311397598.pdfIn PDF document text
- https://rm-parketi.si/uploads/41702653028.pdfIn PDF document text
- http://bet-balance.com/userfiles/file/ralomutevijipetimef.pdfIn PDF document text
- http://johnmarzillier.com/ckfinder/userfiles/files/karafin.pdfIn PDF document text
- https://cplastik.eu/data/cms/file/73375655649.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_off0000f8a8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8A8 | 19180 bytes |
SHA-256: 0b5d69cb6d75daec56743ba2ca08607b3166214329ce7331cf6e894e9f5761ee |
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font_01_sfnt_off00012ab0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12AB0 | 10960 bytes |
SHA-256: 882baa31156d51fec1bcf22188ad9bcda5beb7cdd5029e6af3f12e22c963242d |
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font_02_sfnt_off000143be.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x143BE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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