MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a link farm with numerous external URIs, many pointing to compromised CMS uploads and disposable hosting, suggesting a phishing or redirection scheme. Embedded JavaScript was also detected, which could be used to further exploit the user or facilitate the redirection.
Machine Learning
- Nyx PDF Classifier malicious score 0.9905
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://kalikraft.com/images/file/kesoz.pdf
- https://simpangkanan.com/contents/files/57550203995.pdf
- https://natyabio.com/uploadfiles/lasunerabodekovetaxuge.pdf
- http://musikpark-live.de/userfiles/file/xiwomijesatu.pdf
- https://www.modianodesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136103f8dd27---87959949465.pdf
- https://www.grecosalesinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/161419b97d0d85---nulelalodosajasuxize.pdf
- https://cosmopolitanhotelbg.com/uploads/wysiwyg/files/27388313241.pdf
- http://kientrucphatloc.com/upload/files/putexaletuxoxiwifilez.pdf
- http://dorrstrechy.cz/UserFiles/File/fededase.pdf
- https://mollis.rs/files/72365133637.pdf
- https://toptenstudy.com/upload/files/BodyFile__6144963FE9564.pdf
- http://cermak-expo.cz/data/files/file/fewemobozikajafove.pdf
- http://www.wallisandemmanuel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613292100bd93---karosezazon.pdf
- https://thuanxuongmonmb.com/admin/webroot/upload/image/files/60213677492.pdf
- https://hlj-vibration.com/uploads/image/20210913/files/20210913135100.pdf
- https://www.orthovision-lublin.pl/ckfinder/userfiles/files/xitafutojugujimixoki.pdf
- http://mayinmaunhat.com/upload/files/24401429723.pdf
- https://manhremhoangvan.vn/wp-content/uploads/files/nebixukopak.pdf
- http://allaboutdowney.com/userimages/37709939753.pdf
- http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613cb35c2049d---bewagal.pdf
- http://technoauto.jp/js/upload/files/76441268090.pdf
- http://kahsport.cz/userfiles/file/44066330572.pdf
- https://trsbarriersdirect.com/wp-content/plugins/super-forms/uploads/php/files/12hfrj42l7blp9b7ni55pne0mo/sesapeboge.pdf
- http://pedraferro.com/files/files/83464296745.pdf
- https://www.yoursurveysurveyors.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161396b205315b---91030701665.pdf
- https://nnt52.ru/userfiles/file/fuvusebefojotiva.pdf
- http://chinalabware.es/d/files/jowegopasaxazunalifonunil.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=rick+stein+fish+pie+with+panko+breadcrumbs
- 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_off0000eeb3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEB3 | 16792 bytes |
font_01_sfnt_off000106ca.binaf2c405f3df654a99b9262d67bca5902067bc7b26b320b6441f79c45a6f7a278 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x106CA | 11300 bytes |
font_02_sfnt_off00012101.binef6b7c73986334cef0937efe7a8f8267c83d91bdb2882b665de90230df80f9de |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12101 | 18880 bytes |
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