MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: 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, directing users to multiple compromised or disposable hosting sites. The embedded URLs, such as http://daechienglishpark.com/ckfinder/userfiles/files/tafufujixoziva.pdf, are likely part of this malicious infrastructure designed to trick users into visiting potentially harmful websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9969
Heuristics 6
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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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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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 http://daechienglishpark.com/ckfinder/userfiles/files/tafufujixoziva.pdf
- https://markzone.az/wp-content/plugins/super-forms/uploads/php/files/ber0rekvrj4sp4pjdflvia4toj/44168043749.pdf
- http://www.farmaciapenil.es/userfiles/files/bizogirugopa.pdf
- http://yeosingol.com/FileData/ckfinder/files/20210903_7E972268FA32CBE9.pdf
- http://tpdw.pl/userfiles/file/rowakivuwenataz.pdf
- http://greece-ex.com/images/blog/file/93537387406.pdf
- http://an-professional.ru/img/files/file/26545982245.pdf
- http://qianlong99.org/ckfinder/userfiles/files/74342412730.pdf
- https://zenithservicos.com/userfiles/files/jirizulitegev.pdf
- https://sdhouse.info/ckfinder/userfiles/files/13612309673.pdf
- http://scherzerpc.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/61392262757.pdf
- http://arenda-v-novosibirske.ru/ckfinder/userfiles/files/juwil.pdf
- http://geobigoni.it/userfiles/files/sexatajagije.pdf
- https://htfcompact.com/wp-content/plugins/super-forms/uploads/php/files/8536c25dbe58ab8ec018a4eea44dea69/15898142488.pdf
- http://classicalgardenfountains.com/uplds/file/28855617193.pdf
- http://shardamedicalstore.com/singhania/downloads/file/sikezo.pdf
- http://www.asiacoservice.com/file/files/93764525157.pdf
- http://futimisdev.com/userfiles/file/2071947330.pdf
- https://artesapanaderia.xyz/aym_image/files/78621631087.pdf
- http://goldmustang.com/files/files/sutozuvafubex.pdf
- https://www.hotel-palladium.gr/wp-content/plugins/super-forms/uploads/php/files/mei9uuvfqds13r1315treo0ji5/kevivevomebogebexowam.pdf
- https://printjet.pl/pliki_user/File/11999604920.pdf
- http://perchegouet.com/ckfinder/userfiles/files/repilibirogunebazeduvuv.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=100+likes+free+instagram
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000105bc.bin790e5d8e6e476664436eea8caf41efa1ea6c0fd12ce1665ffe99e15d68832721 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105BC | 18744 bytes |
font_01_sfnt_off00013623.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13623 | 16792 bytes |
font_02_sfnt_off00014e3a.bin6dd24cc420bd0f5465e117e35ce6cf7b92c7960cf99488e2e434a72568cbd883 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14E3A | 10608 bytes |
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