MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link farm pointing to multiple domains, many of which are hosted on disposable infrastructure, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. The presence of embedded URLs and the PDF_SEO_DISPOSABLE_LINK_FARM heuristic further support the conclusion that this document is designed to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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://lachina.cn/upload/file/3099284015.pdf In PDF document text
- https://cet.sk/res/file/vovevukagukojasopurerol.pdfIn PDF document text
- https://makiriaszto.hu/ckfinder/userfiles/files/tomenufosujunebij.pdfIn PDF document text
- https://euroialinsol.ro/userfiles/file/24017674744.pdfIn PDF document text
- http://drapa-technika.cz/UserFiles/File/19956426940.pdfIn PDF document text
- http://aktifithalat.com/resimlerfiles/lijefaxetonarosoloxi.pdfIn PDF document text
- https://hydratrend.com/application/third_party/ckfinder/userfiles/files/57013037569.pdfIn PDF document text
- http://www.centrosanmarco.eu/img/news/files/97403921885.pdfIn PDF document text
- http://affordableadobe.com/ckfinder/userfiles/files/tuluzenarizitaro.pdfIn PDF document text
- http://chanhungcorp.com/images/uploads/files/18430837075.pdfIn PDF document text
- https://www.advids.io/wp-content/plugins/formcraft/file-upload/server/content/files/161358242a8cb4---88042973924.pdfIn PDF document text
- http://asremajazi.com/uploads/files/zukupinima.pdfIn PDF document text
- https://calienglish.com/ckfinder/images_store/files/kivobodalin.pdfIn PDF document text
- http://vandervalk.reviews/app/webroot/files/userfiles/files/56697613686.pdfIn PDF document text
- https://paloaltospeakerseries.com/wp-content/plugins/super-forms/uploads/php/files/f5efc4a3ae1494f851fce410b5bc1739/65948732502.pdfIn PDF document text
- https://tasleemdubai.com/userfiles/files/bukekoridilosadizizaga.pdfIn PDF document text
- http://glampingcaravan.com/userfiles/file/20210905095655.pdfIn PDF document text
- https://neoville.ru/wp-content/plugins/super-forms/uploads/php/files/d0096d2bb7b7da1ea30621a98e26a708/24427586619.pdfIn PDF document text
- https://buildingexpertsdirectory.com/ckfinder/userfiles/files/35557588864.pdfIn PDF document text
- http://metall-press.ru/files/wuxezirifilugaron.pdfIn PDF document text
- http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133540b57ce9---9470115329.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=fifa+20+download+obb+filePDF link annotation
- 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_off0000d554.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD554 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ed6b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED6B | 10424 bytes |
SHA-256: 168711d2fb2e66d60fd477efeb4f9db04685cec02804c2e814e15b7740f61d86 |
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font_02_sfnt_off0001052a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1052A | 17568 bytes |
SHA-256: fc048a8d71674443a1feddbe93e0df7b1094137070480e13acb92a9a718ca93b |
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