MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external links, many pointing to compromised websites or disposable hosting, suggesting a link farm used to redirect users to malicious content. The presence of PDF-specific heuristics like 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' and 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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://queure.ru/uplcv?utm_term=analysing+stocks+pdf PDF link annotation
- http://studiosantese.eu/userfiles/files/pozonupisoru.pdfIn PDF document text
- http://cnokorea.com/userfiles/file/71477439398.pdfIn PDF document text
- https://client-sms.com/ckfinder/userfiles/files/sipaju.pdfIn PDF document text
- http://aotem.com/data/home/qxu1780220113/htdocs/uploadfile/files/35514320093.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ee7267cac8---21485900667.pdfIn PDF document text
- http://hurtglass.pl/upload/file/26921617204.pdfIn PDF document text
- https://swalaya.in/userfiles/file/33190947550.pdfIn PDF document text
- http://opuspointpartner.com/ckfinder/userfiles/files/vusineberivasebipegi.pdfIn PDF document text
- http://topoint.net/userfiles/fckFile/20210906094809.pdfIn PDF document text
- http://stfurnimart.com/file_media/file_image/file/75737140850.pdfIn PDF document text
- http://www.moyekolodin.com/files/48834897240.pdfIn PDF document text
- http://it-hair.com/userfiles/dugukubejawofanolesi.pdfIn PDF document text
- http://sergeybazarov.ru/file/20996380205.pdfIn PDF document text
- http://xn--80aafbladvtgxneccoge3bt.xn--p1ai/pict/file/pefoxibidajozusawu.pdfIn PDF document text
- http://eichler-kammerer.de/93307740196.pdfIn PDF document text
- http://lirealestatelitigator.com/wp-content/plugins/super-forms/uploads/php/files/fdce69adab6c168487505efacc1a40d5/42282914819.pdfIn PDF document text
- https://intelean.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134ffa3d0b94---69510651627.pdfIn PDF document text
- http://demenagements-remond.fr/userfiles/file/20210902085000.pdfIn PDF document text
- http://richmore.kr/uploadfile/fckeditor/file/mupalobovezavinozetarob.pdfIn PDF document text
- http://wcsps.com.tw/ckfinder/userfiles/files/22992356432.pdfIn PDF document text
- https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613184c07f576---88463436762.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_off0000c751.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC751 | 10748 bytes |
SHA-256: c8089bf43b77cd60c95c571f9985a49b50700bd4bfce9543982f5a0f07025ff6 |
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font_01_sfnt_off0000e004.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE004 | 17156 bytes |
SHA-256: ae7db2a64b7e1bb6cdc7b3365d930521970332fe7235c6cf3269e1b281bacd6d |
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font_02_sfnt_off00010c7c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C7C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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