MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains numerous external URIs, many of which are linked to disposable hosting and utilize UTM parameters, indicating a campaign to drive traffic to potentially malicious sites. The PDF structure itself is identified as a link farm, further supporting the lure-based attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
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://medvor.ru/uplcv?utm_term=android+modded+apps PDF link annotation
- https://niboparis.com/upload/fckeditor/file/1631129172_1.pdfIn PDF document text
- http://enjoyisagenix.com/ckfinder/userfiles/files/tepuvugetezedugoxoluwakan.pdfIn PDF document text
- http://st-johnson.com/Uploadfiles/files/jemed.pdfIn PDF document text
- https://nabijdefossa.nl/upload/files/46784429495.pdfIn PDF document text
- http://inlovehuahin.com/file_media/file_image/file/fojakasag.pdfIn PDF document text
- https://rimi.sk/userfiles/file/farogijutewafekoje.pdfIn PDF document text
- https://postelezmasivu-zlin.cz/ckfinder/userfiles/files/24783573340.pdfIn PDF document text
- http://hoadon-dientu.net/images/files/56453597976.pdfIn PDF document text
- http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1613841dab525a---buzuxodimokapojenunufu.pdfIn PDF document text
- https://directorvincentchow.com/fck_filemanager_upload/file/xakafinikumekovomevum.pdfIn PDF document text
- http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16130288e32e10---mukevokan.pdfIn PDF document text
- http://eastcoastbiker.de/sites/default/files/file/42735611169.pdfIn PDF document text
- https://hotelite.in/userfiles/file/debojipoz.pdfIn PDF document text
- http://bugaboo-buffalo.eu/UserFiles/File/66849425407.pdfIn PDF document text
- http://koopmankennedyfeller.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/dulegotunom.pdfIn PDF document text
- https://larustt.com/upload/ckfinder/files/9405380052.pdfIn PDF document text
- https://basisangka.com/contents/files/56038777045.pdfIn PDF document text
- https://rosettes.it/userfiles/file/favojuwinupawuwipobutal.pdfIn PDF document text
- http://portaldo.eu/contenuti/upload/file/bezupafulamoxadagi.pdfIn PDF document text
- http://booklandbooks.com/userfiles/file/xewazedikulinururigufon.pdfIn PDF document text
- http://www.cerel.eu/images/wyswig_images/file/25360241583.pdfIn PDF document text
- http://skupka54.ru/upload/m/5791776175.pdfIn PDF document text
- http://upoart.com/ckfinder/userfiles/files/49356091020.pdfIn PDF document text
- http://hoclaixebinhthuan.com/upload/contentFile/file/26800833925.pdfIn PDF document text
- http://matras-devison.ru/upload/file/ruxerosokarumitop.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_off0000ce61.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCE61 | 18144 bytes |
SHA-256: 8c0cac84db592f02ffd9c400d47d55f076c9ef8ad3d8d933290ed5f61f35edea |
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font_01_sfnt_off0000fd2c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD2C | 10388 bytes |
SHA-256: d1af08d2ab67ed3c8fee16055231435354892bc2a1fe9a7b482319739c0910b2 |
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font_02_sfnt_off00011497.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11497 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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