MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised CMS upload directories 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 0.9947
Heuristics 7
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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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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://crewmak.ru/uplcv?utm_term=roblox+mod+apk+android+1
- http://museodegliarazzimarsala.com/userfiles/files/lazefonifofixura.pdf
- http://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/161561c7e7ab3c---11612230761.pdf
- http://blackhorsesc.pl/userfiles/file/11795585312.pdf
- https://bisnismedsos.com/userfiles/file/vudaxakokaxadifidolejit.pdf
- http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/27oldjknqgimg31tuuf4m7uvg7/pobizuwit.pdf
- http://shouquan.scarclinic-cn.com/uploadfile/file///bamivukiripasasibukukodop.pdf
- http://aiswaryamatrimonials.com/fck_uploads/file/zurovirelebegufek.pdf
- http://zabradli-znerezu.cz/userfiles/file/marobafovujeradevow.pdf
- http://3duct.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614aeeea6baaa---70656127632.pdf
- http://lapmaymn.samdigroup.vn/app/webroot/upload/files/jivitojudazilisego.pdf
- https://auto-rujo.com/images-editor/file/50046675290.pdf
- https://digbijoynath.in/uploads/userfiles/files/rimajivuruwoxilevelevuvik.pdf
- https://demetraproject.eu/ckfinder/userfiles/files/nekabaxudixuloza.pdf
- http://landroverbh.com/ckfinder/userfiles/files/famitufuxukanagujatunugi.pdf
- https://voicelux.ru/wp-content/plugins/super-forms/uploads/php/files/68d92716ae769f8196234c6e0759100f/venukotofamekukutufuwe.pdf
- http://avatars.ru/userfiles/file/kulutanamesepubapowiz.pdf
- http://vdtonline.vn/static/uploads/editor/files/faparatugud.pdf
- http://zpkprzemysl.pl/ckfinder/userfiles/files/79271961857.pdf
- https://beta.nhatthiengroup.com/files/uploaded/files/42128708932.pdf
- https://southafricapools.com/contents/files/vibepiworibupepafubedow.pdf
- http://www.santamyoga.be/images/file/ruwenexesasobiwef.pdf
- https://atx-stroy.ru/wp-content/plugins/super-forms/uploads/php/files/f4b59cf3552efa8d6ba28b42ed1ddf6a/24489218306.pdf
- https://alhurwallpaper.com/Files/files/pezuwivibetegagip.pdf
- https://chachachat.info/js/ckfinder/userfiles/files/20243127889.pdf
- http://nemdanangpho.com/uploads/2021-09-05/images/files/neridezamovetit.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_off0000b151.bina1e35d94a1ed113ad9386ee12e4ffc7674de06ca6be990d12a9079591bc48641 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB151 | 10588 bytes |
font_01_sfnt_off0000c932.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC932 | 16792 bytes |
font_02_sfnt_off0000e144.bin724ed359f11458fac440a571b7c32ec15949754ac697c37573ee3bd11a1338cf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE144 | 14784 bytes |
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