MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded JavaScript stream and numerous external URIs, many of which point to compromised CMS uploads or disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://krisoc.ru/uplcv?utm_term=game+ppsspp+gta PDF link annotation
- https://galedo.cz/www/data/cms_files/files/81546733961.pdfIn PDF document text
- http://tatooazh.ru/files/files/raxejuzanezizumedikabu.pdfIn PDF document text
- http://kristiankutschera.de/userfiles/file/43786721170.pdfIn PDF document text
- http://redondoclassicburger.com/uploads/files/71270492019.pdfIn PDF document text
- https://lifo-sea.com/ckfinder/userfiles/files/kivakuwo.pdfIn PDF document text
- http://massintech.ru/img/outer/files/wosunedobovonozoxapawomu.pdfIn PDF document text
- http://hanasushichoice.com/uploads/files/89708833208.pdfIn PDF document text
- http://soskuwait.com/outscapes/admin/ckeditor/uploads/ck/files/42219037874.pdfIn PDF document text
- http://woodlandhills.ilovepokebar.com/uploads/files/22549885363.pdfIn PDF document text
- https://apexsafetyproducts.com/ckfinder/userfiles/files/87191516956.pdfIn PDF document text
- http://abwmechanicsville.com/uploads/files/lebaxuwili.pdfIn PDF document text
- https://www.digitalsofts.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613cba5e9e0b2---94742823083.pdfIn PDF document text
- http://www.goataxiservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140cce661a1e---sokamaxalixoxexu.pdfIn PDF document text
- https://heart-calligraphy.com/uploads/files/202109131920205041.pdfIn PDF document text
- http://shuimotongyuan.com/userfiles/file/56938587617.pdfIn PDF document text
- http://whuntex.ru/userfiles/file/joxikeriguxixorada.pdfIn PDF document text
- https://yifff.se/userfiles/file/lorubabebamirogiroduwidul.pdfIn PDF document text
- http://bestforfishing.com/wp-content/plugins/super-forms/uploads/php/files/082d66058798abf9f9719907ae3751f4/tifalodopudezije.pdfIn PDF document text
- http://studiomarazzi.eu/userfiles/files/82286821002.pdfIn PDF document text
- http://ndt-tl.ru/upload/file/xerifetarovukiwa.pdfIn PDF document text
- http://j-line.ca/fck_upload/file/25583580038.pdfIn PDF document text
- http://burningspearmarketplace.com/js/ckfinder/userfiles/files/lulele.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_off0000c290.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC290 | 10172 bytes |
SHA-256: 619d8a730c84ab6b4b098cdb4ff9c2c66f72fb2832d7a0a090751d1d735b683f |
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font_01_sfnt_off0000d968.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD968 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f17a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF17A | 17828 bytes |
SHA-256: 774c5c9415be3a3757b576ffdd2dc1d39751f8600d4724e6cd91b1de9664ed2f |
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