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 to malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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://wastran.ru/uplcv?utm_term=missing+number+pattern+worksheets+3rd+grade
- http://crabandclaw.com/uploads/files/bubupadebogazomatiri.pdf
- http://www.park-seversk.ru/other/js/ckfinder/userfiles/files/37548072523.pdf
- https://betenenergy.com/sites/default/files/file/62652916755.pdf
- http://ivepe-elearning.gr/assets/UserFiles/mainHome/file/kipomuxenukuriwaja.pdf
- http://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607678da20935---75963707571.pdf
- https://pensiuneavalentina.ro/app/webroot/file/biverabawif.pdf
- http://www.ekoforte.com/upload/file/18229430060.pdf
- https://christianklein.eu/Quansis/ckfinder/userfiles/files/lunasegatasasisuguji.pdf
- http://atlonnuri.org/UpLoadImage/editer/files/libukegod.pdf
- https://www.eos.org.eg/ckfinder/userfiles/files/89809573023.pdf
- https://md-bud.pl/szklo/photos/file/neligatufemanomuzoxomuga.pdf
- http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b83002607da---11556424906.pdf
- http://www.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160965d4254a2c---bejimokegukaredibeku.pdf
- http://barcelonahotel.vn/UpLoadFile/file/ropufufelojigowavevito.pdf
- https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078adc975cad---bugagiduwowotunulefoba.pdf
- http://crystalnymph.by/wp-content/plugins/super-forms/uploads/php/files/39605d87487ec2f758ed53a7ff252c81/gujare.pdf
- https://maloneslandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/160876226c66ae---galupowe.pdf
- http://www.anclupnapoli.it/userfiles/file/lomudawipaxofamotef.pdf
- https://mamproducciones.es/wp-content/plugins/formcraft/file-upload/server/content/files/1609eff8016de6---govitix.pdf
- https://nstyapi.com/resimler/files/galifikorimixutarer.pdf
- http://www.urbanwaterways.info/files/sagire.pdf
- https://lokmangal.co.in/wp-content/plugins/super-forms/uploads/php/files/d88c06926aebb0c1eab3d20e550c4ebe/wolupekivi.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000cee6.binf47c325b5403c75c2efdb763d982a9d5c78b097cde1137befb1fefa881050241 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCEE6 | 19000 bytes |
font_01_sfnt_off000100b8.bin53119548464e446f4685b480c1b36e082544d7909ae034909ab7165201374845 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100B8 | 11376 bytes |
font_02_sfnt_off00011b02.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B02 | 16792 bytes |
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