MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, containing numerous external URIs pointing to various domains, many of which are likely disposable. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure and heuristic firings strongly suggest a malicious intent to redirect users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9970
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://catamma.ru/uplcv?utm_term=battle+royale+game+under+100mb PDF link annotation
- http://njbeihang.com/uploadfile/file///2021090520273056.pdfIn PDF document text
- https://nordiskvillaventilation.dk/userfiles/file/xamovowuragabaf.pdfIn PDF document text
- http://bdnchem.com/upload/files/rutejomuvuterogudib.pdfIn PDF document text
- https://pensiunea-escape.ro/ckfinder/userfiles/files/mebiwoporiladofewiso.pdfIn PDF document text
- https://lotte-ppta.net/beta/assets/file/nawilagejozomidedazufena.pdfIn PDF document text
- http://asalsold.com/wp-content/plugins/formcraft/file-upload/server/content/files/16148f41c518d8---40665171285.pdfIn PDF document text
- http://hglobaltour.com/FileData/ckfinder/files/20210904_D3C42BE67A22BEC0.pdfIn PDF document text
- https://hahapediatric.com/uploads/files/202109092337242838.pdfIn PDF document text
- https://groupits.cm/uploads/fck/file/97094086023.pdfIn PDF document text
- http://sapientgenerator.ru/files/userfiles/files/27423955559.pdfIn PDF document text
- http://hzxf.com/images/upload/File/87053136350.pdfIn PDF document text
- http://xn--3e0b556bhrbowi6undva.com/ckupload/files/pusotobavavukazekut.pdfIn PDF document text
- http://nordicwalkingturak.hu/_user/file/xabuxukofumuv.pdfIn PDF document text
- http://kimsanghun.com/upload/userfiles/file/20219111034323938.pdfIn PDF document text
- http://speaklifeiamgreatness.com/files/files/mokukilupikobemon.pdfIn PDF document text
- https://kaplaitalia.it/userfiles/files/pakotimomudovigup.pdfIn PDF document text
- https://limblength-sldf.com/userfiles/file/misufiwobefaxogi.pdfIn PDF document text
- http://findusafranchise.com/files/files/97693751726.pdfIn PDF document text
- http://montagnobozzone.it/userfiles/files/10537649636.pdfIn PDF document text
- http://soepcentrale-dekeyser.be/userfiles/file/telanisibuzogasi.pdfIn PDF document text
- http://pradakshinam.com/fck_uploads/file/nonoturawile.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_off0000e5c4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5C4 | 18152 bytes |
SHA-256: ca20407588b1c4bee370252f8a93c7b5d9614bfa0bf4739cdbdafd26628f2841 |
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font_01_sfnt_off0001152a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1152A | 10912 bytes |
SHA-256: afe2dde4bae840fa07986adae5a625f95604c2b3ccf337c4593e75304080f8f1 |
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font_02_sfnt_off00012e51.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12E51 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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