MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 User Execution: Malicious Link
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. Heuristics indicate the document functions as a link farm, directing users to multiple external websites, some hosted on compromised CMS platforms. The presence of numerous unknown URLs suggests a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://hensuyenpqa.traigiongthuha.com/ckfinder/userfiles/files/33255116523.pdf In PDF document text
- https://balajihighfields.in/userfiles/file/55291983786.pdfIn PDF document text
- http://aapltd.net/userfiles/file/tedikaxexepuzis.pdfIn PDF document text
- https://sv-fin.ru/wp-content/plugins/super-forms/uploads/php/files/a7e4fa34a41a728cd4f876e4c9453bdc/vamisogixixujelije.pdfIn PDF document text
- https://angkalaris.com/contents/files/89032905505.pdfIn PDF document text
- http://tiwtactic.com/userfiles/files/91247314398.pdfIn PDF document text
- https://senegal4d.com/contents/files/24724546211.pdfIn PDF document text
- https://hotelharmika.com/assets/userfiles/files/18822943706.pdfIn PDF document text
- https://webshopplus.nl/app/webroot/files/userfiles/files/rileduvudenisubotosozaw.pdfIn PDF document text
- http://dyccpharma.com/upload/files/wasanexozuwosodexarab.pdfIn PDF document text
- https://hitourkorea.com/FileData/ckfinder/files/20210905_8D85DEE0B26E614F.pdfIn PDF document text
- https://volnynaklad.cz/data/file/89302899377.pdfIn PDF document text
- http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/e0dgfa8red6jhg72ndjf2kp5c1/dubemozibulefokodagirutan.pdfIn PDF document text
- http://sevoir.hu/uploads/file/18850678494.pdfIn PDF document text
- http://www.egymast-segito.hu/uploaded/fck/file/8583753179.pdfIn PDF document text
- http://fantalife.nl/userfiles/file/4380235329.pdfIn PDF document text
- http://ayhancevik.com/images_upload/files/filorokax.pdfIn PDF document text
- https://daqing-jewelry.com/uploads/files/202109061307166531.pdfIn PDF document text
- https://sieuthimaycafe.vn/uploads/file/23983626391.pdfIn PDF document text
- http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134ea045581e---10726837669.pdfIn PDF document text
- http://studiotrusso.it/userfiles/files/toralobisatisadeko.pdfIn PDF document text
- http://tbff-bygg.se/img/files/76917348692.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=use+phone+as+usb+microphonePDF 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_off0000d67e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD67E | 17852 bytes |
SHA-256: 80b6223ea9d02e7290a47a6979f2d6db5610de4079f77195e416670f0b464d40 |
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font_01_sfnt_off0001049e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1049E | 10744 bytes |
SHA-256: de7e75297aa7bec621d4123ac65bd74abc377bd2108710974dacacb0dca0ac74 |
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font_02_sfnt_off00011cdc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11CDC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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