MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains a large number of external URLs, suggesting it functions as a link farm to distribute phishing content or download further malware. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' specifically points to this behavior, leveraging disposable hosting and redirectors.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
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://smidgel.ru/uplcv?utm_term=viro+4g+smartphone+review PDF link annotation
- https://norservis.com/files/files/24752568246.pdfIn PDF document text
- http://thienanglass.vn/upload/files/32713613180.pdfIn PDF document text
- http://canhtoanland.com/upload/files/4963353245.pdfIn PDF document text
- https://perkunasstudio.com/uploads/files/202109082203237450.pdfIn PDF document text
- https://tresonance.org/uploadfiles/buxetutuvibigakonufawat.pdfIn PDF document text
- http://xindeshiye.com/uploadfile/file///2021090200574718.pdfIn PDF document text
- http://gpszone.hu/upload/userfiles/file/3499166880.pdfIn PDF document text
- http://gongotour.com/FileData/ckfinder/files/20210909_75864FD11C11CA57.pdfIn PDF document text
- https://www.kiemtoandongnghi.com/public/plugins/ckfinder/userfiles/files/xixan.pdfIn PDF document text
- http://odumakus.com/uploads/files/lixozameda.pdfIn PDF document text
- http://maxgear.cz/webpagebuilder/ckfinder/userfiles/files/fopomerazarutuw.pdfIn PDF document text
- https://www.isnb.co.uk/wp-content/plugins/super-forms/uploads/php/files/ea0a54904858fc73d214a3afced0b449/bajuxisenelikaxegaf.pdfIn PDF document text
- http://foto-recepty.sk/images/fotky/kuzudunose.pdfIn PDF document text
- http://china-engine.net/ckfinder/userfiles/files/wemudeveturalovonepe.pdfIn PDF document text
- https://polytex.de/sites/default/files/29347247317.pdfIn PDF document text
- https://mollis.rs/files/xejusafovu.pdfIn PDF document text
- http://kbcsisa.com/upload/fckeditor/file/17140536695.pdfIn PDF document text
- http://dienlanhhuubinh.com/upload/files/69069255138.pdfIn PDF document text
- https://digireg.cn/upload/2555117835.pdfIn PDF document text
- https://habrit.tw/ckfinder/userfiles/files/kugomovarerolu.pdfIn PDF document text
- http://lifeline-sports.com/files/file/fijofon.pdfIn PDF document text
- http://kapsalonvogue.nl/files/file/44058592263.pdfIn PDF document text
- http://aptekadc.pl/userfiles/userfile/79263611989.pdfIn PDF document text
- http://drvision.org/wp-content/plugins/formcraft/file-upload/server/content/files/161313b7e78e84---84559122593.pdfIn PDF document text
- http://csc0512.com/userfiles/file/20210904101543_r7sgxp.pdfIn PDF document text
- http://abpjseah.news-read.com/upload/files/62089931280.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_off0000d7cb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7CB | 17776 bytes |
SHA-256: d6cd1734cb25f26496829bf5749958bb237b33c02aa9232faeac591514621d3f |
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font_01_sfnt_off000105b6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105B6 | 10852 bytes |
SHA-256: af7f7d4db55cfab74ca7e3142292f86ad3b1414c39c1b4fdfbf3575ea58402c6 |
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font_02_sfnt_off00011ec2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11EC2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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