MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF document containing embedded JavaScript, which is a common technique for delivering malicious content. It also features numerous external links, many pointing to compromised or disposable hosting, suggesting a link farm designed to redirect users to potentially malicious sites. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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://oniceh.ru/uplcv?utm_term=english+comprehension+passages+with+questions+and+answers+for+grade+7
- http://casier-a-bouteilles.fr/file/kikegowazanewalejup.pdf
- https://rubenoferro.com/userfiles/file/71712238421.pdf
- http://jamoncup.es/wp-content/plugins/formcraft/file-upload/server/content/files/160eca4e45d383---tunizevukama.pdf
- http://www.llmhospital.com/www/js/ckfinder/userfiles/files/37936147249.pdf
- https://namdolove.com/FileData/ckfinder/files/20210605_0E93C255AD3FCCDF.pdf
- http://www.expo-hotel.com/english/wp-content/plugins/formcraft/file-upload/server/content/files/16088468d62fdd---77036213387.pdf
- http://amuseonline.com/absite/userfiles/file/relinabaw.pdf
- http://phutungvespaco.com/luutru/files/67602826410.pdf
- http://agnieszkapawlik.com/userfiles/file/902688400.pdf
- http://bijverhoeven.nl/uploads/files/59458739825.pdf
- https://gresathouse.com/wp-content/plugins/super-forms/uploads/php/files/7767209a2c9345e45ec26e8aa0560c72/23256083717.pdf
- https://apparel.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/94c6f128d9c6d75c6f3927b220d41a16/33772164238.pdf
- http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/8d58ah6pnfpl812fvbtkkgouj0/geniziremadejokekafu.pdf
- https://spaslask.pl/wp-content/plugins/super-forms/uploads/php/files/hq50fd7qegiorafslt9jjq8vdk/36030711390.pdf
- https://hacunamatata.ru/wp-content/plugins/super-forms/uploads/php/files/9a7e14e852078de4fedd0f24dfc170c9/2053468456.pdf
- http://shsclassof1959.com/clients/a/a7/a7a82b2a6025f7fafce5d77be70bf845/File/jelidafuluwaxiwetonizew.pdf
- http://amazingindiaphotos.com/amazingindiaphotos//upload/fckimage/file/89046766003.pdf
- http://seja.lv/assets/ckfinder/core/connector/php/uploads/files/marolitupat.pdf
- http://klefmarken.se/upload/file/44989368541.pdf
- http://modellszerviz.hu/userfiles/file/39060047590.pdf
- http://hophungvietnam.com/app/webroot/uploads/files/81528950088.pdf
- https://urbanplace.me/wp-content/plugins/super-forms/uploads/php/files/3558edf29775552d456aea3967844c6e/vevatuxudalutativugadi.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608803a79fe69---jalisibemegiwulaniri.pdf
- http://www.gainerwindows.ca/wp-content/plugins/super-forms/uploads/php/files/dktr0l7tgo4aa54s621c7imks4/pajaludodagedujodunexe.pdf
- http://www.northeastmarquees.com/wp-content/plugins/super-forms/uploads/php/files/f82bea4e6992efad171fc8bab8a9a7ae/tatabawevaxulugaxapif.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_off0000fad9.bin78bb022a12e7db7ec557a7504797e4d28a61f231aef116c8e29ec1559af6c15c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFAD9 | 11432 bytes |
font_01_sfnt_off00011533.bin218eae797e4eefa81d87de3323fe1a866d99c72ad0fe30b69f4b65264f433a32 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11533 | 17192 bytes |
font_02_sfnt_off000141ed.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x141ED | 16792 bytes |
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