MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous embedded URLs that form a link farm, with several pointing to compromised WordPress upload directories and disposable hosting. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure suggests it's designed to redirect users to potentially malicious content hosted on these external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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 https://synerhu.ru/uplcv?utm_term=penyebab+game+force+close+di+android PDF link annotation
- http://kangmeideyiliao.com/uploadfile/file///2021090316544471.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161401920b4fc1---tutajokekevipitubofusaw.pdfIn PDF document text
- http://www.leesii.com/wp-content/plugins/formcraft/file-upload/server/content/files/161407e0564eb1---duwosejeboxi.pdfIn PDF document text
- http://cottoneauto.it/userfiles/files/vated.pdfIn PDF document text
- http://cdenito.net/userfiles/file/57368911488.pdfIn PDF document text
- https://emenu.hu/editor_up/guxoma.pdfIn PDF document text
- http://www.danvillern.com/wp-content/plugins/super-forms/uploads/php/files/0dcd03d0e45b98a07ee33925f48a1ac0/71862645456.pdfIn PDF document text
- http://mq-water.net/upload/36101567482.pdfIn PDF document text
- https://auto826.vnpec.xyz/uploads/files/dirore.pdfIn PDF document text
- http://hstairan.com/FCKeditor/editor/filemanager/connectors/php/userfiles/file/84025048467.pdfIn PDF document text
- http://trufeel.com/ckeditor/ckfinder/uploadfile/files/26733429735.pdfIn PDF document text
- http://bakefruit.com/uploads/files/202109072057541541.pdfIn PDF document text
- http://jerseybankruptcylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/xofidija.pdfIn PDF document text
- https://wheelmartthailand.com/image/upload/File/4456035003.pdfIn PDF document text
- http://amongelite.com/ci/userfiles/files/jexizepexurilusozul.pdfIn PDF document text
- https://brylka-kfz.de/wp-content/plugins/formcraft/file-upload/server/content/files/161380fc9d638a---83084154145.pdfIn PDF document text
- http://www.ecrivains-consult.fr/easyonline/ckfinder/userfiles/files/62844393664.pdfIn PDF document text
- http://cwesp.biz/upload/file/47916475321.pdfIn PDF document text
- http://eqletstalk.com/uploads/files/202109070213102968.pdfIn PDF document text
- http://form4concrete.ru/pics/cont/file/nareduzuxajemesaziwi.pdfIn PDF document text
- https://ecpa.fr/uploaded/file/45160363138.pdfIn PDF document text
- https://ddmmaze.altruistictech.org/documents/img/upload/files/62938381876.pdfIn PDF document text
- http://cafesezony.ru/fck_editor_files/files/lidowagumixoxomum.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_off0000dd42.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD42 | 19828 bytes |
SHA-256: 7afba33768e3d4a6df4245d0d19e7f6bddb12de0a2e71068398a147a61586209 |
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font_01_sfnt_off0001111c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1111C | 10976 bytes |
SHA-256: 736329da035be3681c91bc1f35ff112442dd4ed763fb49f139f06a595be68776 |
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font_02_sfnt_off00012a5d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A5D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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