MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. It contains numerous embedded URLs, many of which point to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users. The primary external URI found is https://synerhu.ru/uplcv?utm_term=zee+telugu+app+download+free, which likely serves as a lure for phishing or malware delivery.
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=zee+telugu+app+download+free PDF link annotation
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/16141417417645---19515335886.pdfIn PDF document text
- http://recko.ru/ckfinder/userfiles/files/segimexobawan.pdfIn PDF document text
- https://kme.pl/global/app/webroot/uploads/file/16314836137162.pdfIn PDF document text
- http://pokrowce-ochronne.pl/Upload/file/buxikesetafatujebew.pdfIn PDF document text
- https://acp-luxusingatlanok.hu/ckfinder/userfiles/files/27185909359.pdfIn PDF document text
- http://bentleyplemtech.ru/userfiles/file/12754632622.pdfIn PDF document text
- http://www.gainerwindows.ca/wp-content/plugins/super-forms/uploads/php/files/5ndpphg7f2uu3b5gf85d2fbts1/mikuxipatijekikedowaxa.pdfIn PDF document text
- http://daotaonhaccong.com/uploads/userfiles/file/pujuxoworawabegul.pdfIn PDF document text
- http://sanraimundo.cl/dyn/uploads/file/23731522172.pdfIn PDF document text
- https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/161396299ca7b3---41974016447.pdfIn PDF document text
- http://liveranigioielli.it/userfiles/files/xudopezizire.pdfIn PDF document text
- https://icicle-mountaineering.ltd.uk/ckfinder/userfiles/files/vozitugumada.pdfIn PDF document text
- https://grandiosieventinuziali.it/filesUploads/file/29940930086.pdfIn PDF document text
- https://xnkvinatimex.com/uploads/files/7097346963.pdfIn PDF document text
- http://hungthanhauto.com/luutru/files/22003383702.pdfIn PDF document text
- https://businessincasey.com.au/application/third_party/ckfinder/userfiles/files/13477534097.pdfIn PDF document text
- https://sikahaiphong.com/images/news/files/taxivoz.pdfIn PDF document text
- https://ecoinkworld.com/wp-content/plugins/super-forms/uploads/php/files/30384c592af98acad98dbd51458fdb42/biwolig.pdfIn PDF document text
- http://ateliergermain.club/sites/default/files/file/ditowufazixowagovol.pdfIn PDF document text
- https://olterus.org/contents/files/vezudasafaxezo.pdfIn PDF document text
- https://imagebrandstudio.com/userfiles/file/76415142375.pdfIn PDF document text
- http://allamericannursing.com/userfiles/file/kuleju.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_off0000d7b8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7B8 | 18220 bytes |
SHA-256: c17ab7964193cbad5dc2c7ec9b09aac63af88de339d1a994db8bab2e70c431ee |
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font_01_sfnt_off00010750.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10750 | 10564 bytes |
SHA-256: 06b5ec15228e04895708b707b4230dd5ba4dd40b691a3f69a10de9a8faa9dde0 |
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font_02_sfnt_off00011f6a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F6A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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