MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains numerous embedded URLs, many of which are hosted on disposable domains and appear to form a link farm, a common tactic for phishing or distributing further malware. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' specifically flags this behavior. While no scripts were explicitly extracted, the nature of the embedded URLs suggests a phishing or redirection attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
Heuristics 6
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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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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 https://cructi.ru/uplcv?utm_term=qr+scanner+android+camera PDF link annotation
- http://thietbibepnhahang.net/media/files/39403294817.pdfIn PDF document text
- http://hyundai-dongdo.vn/images/files/74936653113.pdfIn PDF document text
- http://dinhvi5s.com/images/newtech/files/kulalamosedeturejugu.pdfIn PDF document text
- https://renteci.com/imagens/file/77731026829.pdfIn PDF document text
- https://alternativecarrepair.nl/userfiles/file/54755236558.pdfIn PDF document text
- http://goldenstarhotel.vn/images/uploads/files/tefutitonegogub.pdfIn PDF document text
- https://dongytueduc.com/wp-content/plugins/super-forms/uploads/php/files/cq23re0kr4hpk72qv9olk51kgd/sovudisopaxitezeniberix.pdfIn PDF document text
- https://openkomm.yussfone-crm.com/userfiles/file/46985816467.pdfIn PDF document text
- http://elrey-uslugi.ru/media/file/80642220731.pdfIn PDF document text
- http://kleinschaden-expert.de/userfiles/file/pezeximulurogon.pdfIn PDF document text
- http://carbontuning.ru/file/81091054663.pdfIn PDF document text
- http://www.kyousei-fukushi.or.jp/system/ckfinder/userfiles/files/kabatozi.pdfIn PDF document text
- http://www.cafeinca.com/img/public/contenido/file/13321138252.pdfIn PDF document text
- http://www.biogreeno.com/cms/ckfinder/userfiles/files/sivenena.pdfIn PDF document text
- http://designpavelzapletal.cz/files/file/belirap.pdfIn PDF document text
- https://kipass.fr/userfiles/file/65091116222.pdfIn PDF document text
- http://zap-interactive.com/uploads/files/53061202970.pdfIn PDF document text
- http://cleversystems.ru/userfiles/file/doximozorirajekezi.pdfIn PDF document text
- http://eastindiaspray.com/suvra/eastindia_spray/files/31751416579.pdfIn PDF document text
- https://pre-www.bridge-college.com/uploaded/ckeditor/files/lufupiguxaf.pdfIn PDF document text
- http://dermalab.pl/userfiles/file/51036313412.pdfIn PDF document text
- http://storemisr.com/uploads/files/2607388147.pdfIn PDF document text
- https://generalaudit.pl/eurostyl/photos/file/8605442584.pdfIn PDF document text
- https://www.ijdsir.com/ckfinder/userfiles/files/99765460042.pdfIn PDF document text
- http://chuanghuilaw.com/filespath/files/20210904184848.pdfIn PDF document text
- http://m3hotels.com/userfiles/file/girobugegavipiwekevejimo.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_off0000d1ff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1FF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ea11.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA11 | 18004 bytes |
SHA-256: 04f440c80ce08ae3f46bf61c91e0dd4f3421aebd14d88f0d564f8cf4c9074c60 |
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font_02_sfnt_off00011922.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11922 | 10444 bytes |
SHA-256: cf226c7376ad2a3149a9834c960b58187ae575012ac53bdb529dd5211d13490c |
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