MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs pointing to disposable domains, a common tactic for phishing or distributing further malware. The ML classifier and ClamAV detection strongly indicate malicious intent. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' specifically identifies the document's structure as a link farm on disposable hosting, reinforcing the phishing or malware distribution pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
Heuristics 5
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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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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://krisoc.ru/uplcv?utm_term=win7+windows+7+reference+apk PDF link annotation
- http://xn--49s538bo8ux8c.net/userfiles/file/80888291634.pdfIn PDF document text
- https://jakspravnenapsa.cz/userfiles/file/74886571415.pdfIn PDF document text
- https://qamarapps.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f3b7b5885b---fexusazunovi.pdfIn PDF document text
- https://kamwalibais.com/userfiles/file/betunimovewisafof.pdfIn PDF document text
- http://banquat.com/userfiles/files/77789620899.pdfIn PDF document text
- http://anonelectronics.com/admin/fckeditor/editor/filemanager/connectors/php/upload_jpg/file/202109091612063199.pdfIn PDF document text
- https://phoenixturkey.com/upload/ckfinder/files/835658152.pdfIn PDF document text
- https://hsse.hssanesteban.cl/files/jafewubesexaviru.pdfIn PDF document text
- http://classicalgardenornaments.com/uplds/file/buwemegux.pdfIn PDF document text
- https://relleno-acidohialuronico.com/wp-content/plugins/super-forms/uploads/php/files/9321a4ecd9804f23961729120b41acd4/pokewikiroderuwotajiji.pdfIn PDF document text
- http://lerucherdesanges.fr/userfiles/file/46955094334.pdfIn PDF document text
- https://www.afoa.org.ar/backend/ckfinder/userfiles/files/zibosivimarekud.pdfIn PDF document text
- http://chernogolovka.inhome360.ru/admin/ckfinder/userfiles/files/86704808539.pdfIn PDF document text
- https://beautydiction.com/ckfinder/userfiles/files/21202325775.pdfIn PDF document text
- https://ww150002.linebot.net/upfile/files/20210904130012.pdfIn PDF document text
- http://cec-intl.ru/app/webroot/files/file/26419227944.pdfIn PDF document text
- https://flcevent.fcu.edu.tw/plugin/ce1/ckfinder/userfiles/files/20210908171708.pdfIn PDF document text
- http://pes.edu.mn/ckfinder/userfiles/files/24578608698.pdfIn PDF document text
- http://bbpcosmetics.com/admin/upFiles/2021-9/file/kufivibapirabotitubu.pdfIn PDF document text
- https://angem.fr/userfiles/file/tolitexizefalurarek.pdfIn PDF document text
- http://top-rubber.com/admin/fckeditor/editor/filemanager/connectors/upload/file/filik.pdfIn PDF document text
- http://www.psychophonie-tarbes.com/ckfinder/userfiles/files/59248031656.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_off0000bed4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBED4 | 10688 bytes |
SHA-256: 69af44f98aa93ee4b4568edcf789e013821f3f6e82889cf3a30f407892c31272 |
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font_01_sfnt_off0000d78d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD78D | 16568 bytes |
SHA-256: fbf9c80e5cbe3539fbcf0de04b56606c052316be0208e599cdc1d888f289372d |
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font_02_sfnt_off00010248.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10248 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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