MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains embedded JavaScript and numerous external URIs, many of which point to compromised websites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The embedded JavaScript likely facilitates the redirection or exploits vulnerabilities to execute further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9927
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://queure.ru/uplcv?utm_term=scarlet+heart+ryeo+2+ep+1+eng+sub
- http://happypalettebnb.com/CKEdit/upload/files/35137502201.pdf
- https://naseeha.org/wp-content/plugins/super-forms/uploads/php/files/5a1c8d3554bb63f312f5cfd923ed322e/loxewijupebusipugisona.pdf
- http://cuacongtrinh.vn/upload/files/88107454976.pdf
- https://wupaojichangjia.com/d/files/4208764736.pdf
- http://chagatea.ru/wp-content/plugins/super-forms/uploads/php/files/0a7becc7f2613b5a17870f3f379ac14c/mopizesubime.pdf
- https://budapestpainter.hu/ckfinder/userfiles/files/11701107805.pdf
- http://jrpst.pl/userfiles/file/xitimixexa.pdf
- https://oazapiekna.com/zdjecia/fck/file/9163341139.pdf
- https://actorconseil.com/files/file/jelinodek.pdf
- https://farmaciasacoor.com/site/upload/file/76911523564.pdf
- https://digireg.pl/upload/90852587723.pdf
- https://www.sadcmedia.com/wp-content/plugins/super-forms/uploads/php/files/p4ukg99d41g59er0mauo28u82u/53982792604.pdf
- http://kingspec.su/wp-content/plugins/super-forms/uploads/php/files/9ufduta3du8l8cf93fpe93sq0c/8775999652.pdf
- http://meetburgerusa.com/uploads/files/89453908329.pdf
- http://ip-golubev.ru/ckfinder/userfiles/files/49154060875.pdf
- http://metabolit-plus.ru/files/file/65747566466.pdf
- https://aihr-iadh.org/uploads/FCK_files/file/popuzulozotadufugagoj.pdf
- https://holzhaus-suedtirol.it/wp-content/plugins/formcraft/file-upload/server/content/files/1606c863ee9556---sedoxezig.pdf
- http://indianspringhomes.net/userfiles/files/nobided.pdf
- http://conservativista.com/js/ckfinder/userfiles/files/lixezelilurimokivewujuwa.pdf
- https://xo-sound.ru/userfiles/file/nawepufilidaxupefozabe.pdf
- https://xlspandoek.nl/userfiles/file/gadiratedodetiwomejenob.pdf
- https://adm.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/d229d26a2d61c58db6d01690da10256f/91762200298.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b8a4.bine9028ea3c136b0ecb8b5e11d3d1cfbdcb1623a84e85bb09c57e9a3b163d20267 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB8A4 | 16320 bytes |
font_01_sfnt_off0000e272.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE272 | 16792 bytes |
font_02_sfnt_off0000fa7f.binf8baee5b470e29b3d8033753825dbc69eff683edfc858002b89eb075797a1058 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA7F | 3652 bytes |
font_03_sfnt_off000108bc.bin1c56132e21b1e16011fbe0a0161ff81bc0d4c17788bd2ac69ad98c8a0c60efbb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108BC | 11164 bytes |
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