MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The file contains numerous embedded URLs that point to compromised websites and disposable hosting, indicating a link farm designed to redirect users to malicious content. The presence of these URLs and the overall structure suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://chcial.ru/uplcv?utm_term=brain+wash+amazing+jigsaw+thinking+game+apk PDF link annotation
- http://chernogolovka.inhome360.ru/admin/ckfinder/userfiles/files/45131350722.pdfIn PDF document text
- http://cuadepthanglong.com/images/ckeditor/files/13592075218.pdfIn PDF document text
- http://smartmedicaleg.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132af4ac47fd---68793457845.pdfIn PDF document text
- https://www.fyna.com.au/application/third_party/ckfinder/userfiles/files/73918537697.pdfIn PDF document text
- http://ncdesign.it/userfiles/files/romusexifixatogekodewo.pdfIn PDF document text
- https://bamfieldrental.com/userfiles/file/gijamisixatupidazowerewa.pdfIn PDF document text
- https://zifu-tech.com/app/webroot/userfiles/files/zujuruvizawuvoxanakiwok.pdfIn PDF document text
- http://hebammenglueck.de/ckfinder/userfiles/files/lifofizokawe.pdfIn PDF document text
- http://texmet.pl/userimages/file/mibarulubulul.pdfIn PDF document text
- https://duragloss.pl/userfiles/file/botubosobin.pdfIn PDF document text
- https://www.sabiamente.es/wp-content/plugins/formcraft/file-upload/server/content/files/1613608ff20e43---73043600408.pdfIn PDF document text
- https://zenithservicos.com/userfiles/files/67213126224.pdfIn PDF document text
- https://kaisar168.com/contents/files/lovefinegabatinojera.pdfIn PDF document text
- https://lacausedeslivres.com/userfiles/file/73048846217.pdfIn PDF document text
- https://thai-airpark.com/ckfinder/userfiles/files/satabimokisowekux.pdfIn PDF document text
- http://metall-press.ru/files/87842780818.pdfIn PDF document text
- https://ryokanclub.com/FileData/ckfinder/files/20210909_FA928360AE5C4F9D.pdfIn PDF document text
- http://cegled.varosom.hu/userfiles/files/zisugo.pdfIn PDF document text
- http://omniatel.it/wp-content/plugins/formcraft/file-upload/server/content/files/161393f4e245d6---29848457569.pdfIn PDF document text
- http://phanphoiongnhuahoasen.vn/upload/files/2577496433.pdfIn PDF document text
- https://farmacieitaliane.com/documenti/file/37552131467.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_off0000b156.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB156 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c968.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC968 | 16052 bytes |
SHA-256: 0d76f5a16ef0d37c6921108a5ff26a2ad3a1f16329b0031a84a737ed566b614e |
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font_02_sfnt_off0000f254.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF254 | 10956 bytes |
SHA-256: 1062cc96edd6069cd5b13cf0af1d6eb7f23d7f74fd16b5212da17a5738381c6a |
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