MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. Numerous external URLs were extracted, many pointing to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The PDF structure and embedded links are consistent with phishing or malware distribution campaigns.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
Heuristics 6
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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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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://synerhu.ru/uplcv?utm_term=hide+call+forwarding+notification+android PDF link annotation
- https://agronlogistics.com/userfiles/files/kefewekatovezu.pdfIn PDF document text
- http://www.satunatc.ac.th/ckfinder/userfiles/files/momodivufasuxovit.pdfIn PDF document text
- http://cicm2015.mist.ac.bd/app/webroot/ckfinder/userfiles/files/keluneluledusirubododizu.pdfIn PDF document text
- http://duythuc-bearing.vn/uploads/userfiles/file/76835611230.pdfIn PDF document text
- http://jamoncup.es/wp-content/plugins/formcraft/file-upload/server/content/files/16133ea32f11de---30140339859.pdfIn PDF document text
- http://christopherspubandgrille.com/userfiles/files/53685094718.pdfIn PDF document text
- http://asbufestival.com/uploads/FCK_files/file/90870163252.pdfIn PDF document text
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161381db85fd69---salabufixobivebu.pdfIn PDF document text
- http://artstudiodesign.it/userfiles/files/fojukofuniju.pdfIn PDF document text
- http://giovanniseneca.eu/userfiles/files/wakevukuriv.pdfIn PDF document text
- http://arebiatours.com/uploads/files/61545636901.pdfIn PDF document text
- https://webhosting4.net/media/file/tominibijivowiretuk.pdfIn PDF document text
- https://medsplus.us/admin/images/file/novutaparotep.pdfIn PDF document text
- https://petroblend.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134f08dd8124---99787445999.pdfIn PDF document text
- https://assurancemauricie.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138579f353c0---98513742164.pdfIn PDF document text
- http://detaycopymatbaa.com/userfiles/file/42947559635.pdfIn PDF document text
- http://sintellect.ru/Repository/file/38727813843.pdfIn PDF document text
- https://akproauto.com/nbloom/fckuploads/file/nerowokoratisobope.pdfIn PDF document text
- http://scherzerpc.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/vedogewikutowe.pdfIn PDF document text
- http://ebiocell.com/uploadfile/file///2021090808034334.pdfIn PDF document text
- https://stcatherine.ac.ug/wp-content/plugins/formcraft/file-upload/server/content/files/1613a22675479f---3958576655.pdfIn PDF document text
- https://sleepthai.com/piceditor/file/vigidudanobatugadofikub.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_off0000d51b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD51B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ed2d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED2D | 18272 bytes |
SHA-256: 87cb1c1ca1e0645e12f57cedf183e301c55a1b5086e5a5197410e69372c49293 |
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font_02_sfnt_off00011cd7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11CD7 | 10560 bytes |
SHA-256: a1e240b5edc5ba15eeca04a555ae012f1e024d5a6a9f6368b8bfef8b23dd651f |
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