MALICIOUS
182
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file contains embedded JavaScript and multiple external URIs, indicating a malicious intent to redirect the user to potentially harmful content. The heuristic 'SE_SECURITY_BYPASS' suggests the document attempts to instruct the user to disable security software, a common tactic for malware delivery. The ML classifier and ClamAV detection further confirm its malicious nature, likely as a phishing or trojan delivery mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 8
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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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Security software disable instruction high SE_SECURITY_BYPASSDocument instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://philabc.ru/uplcv?utm_term=crash+bandicoot+trilogy+download PDF link annotation
- https://www.meditech.cz/ckfinder/userfiles/files/nerotitipukodimi.pdfIn PDF document text
- http://lube-stc.com/ckfinder/userfiles/files/97208111273.pdfIn PDF document text
- http://tuzoltosagmihald.hu/userfiles/file/rozuwuvap.pdfIn PDF document text
- https://alev.az/userfiles/file/66582808236.pdfIn PDF document text
- https://bookmyexcellence.com/bookmyexcellence/js/ckfinder/userfiles/files/wobutopotem.pdfIn PDF document text
- http://rld-carbon.ru/file/zijogu.pdfIn PDF document text
- http://everintelconsulting.com/upload/file/202109121245511224.pdfIn PDF document text
- https://edusfera.pl/upload/file/feguragekuli.pdfIn PDF document text
- https://skvely-kup.cz/files/file/walikogegizemovewuna.pdfIn PDF document text
- http://cuakeobinhduong.com/upload/files/79114416650.pdfIn PDF document text
- http://e-instar.com/userfiles/file/wusadupisisiwuw.pdfIn PDF document text
- http://skybuildinfraprojects.com/uploads/48497819611.pdfIn PDF document text
- https://eminenceconstruction.ca/viking1/uploads/files/5535473042.pdfIn PDF document text
- http://hebakotb.net/userfiles/file/xofixerexubuvem.pdfIn PDF document text
- http://anael.fr/fckeditor/userfiles/file/vuxelenulafeniperi.pdfIn PDF document text
- http://gianphoiduyloimodel.com/Images_upload/files/luxutisevuxopolusu.pdfIn PDF document text
- http://ongxoanhdpe.vn/upload/files/82615328745.pdfIn PDF document text
- http://canvangdientu.com/images/file/ronifiguresa.pdfIn PDF document text
- http://nepalbestcargo.com/userfiles/file/93313066729.pdfIn PDF document text
- https://ixiu-23.com/uploads/files/202108312347073770.pdfIn PDF document text
- http://eastcity.hu/ufiles/file/43439372821.pdfIn PDF document text
- http://japanbizkorea.com/userData/ebizro_board/file/54432633213.pdfIn PDF document text
- http://branonperformance.com/ckfinder/userfiles/files/8502771918.pdfIn PDF document text
- http://hnc2.com/userfiles/file/74293626264.pdfIn PDF document text
- http://findusafranchise.com/files/files/rinurizuxu.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_off0000db76.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB76 | 10888 bytes |
SHA-256: a7d6a790dc46114be8c90f9111c7a0bd2e01aa2f456f1318d741f253cb8e754c |
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font_01_sfnt_off0000f473.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF473 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010c85.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C85 | 19012 bytes |
SHA-256: e1ca426ce8b507a76f38b09e5f5b92f6a1b0c56ca450f632d3773ce96469e501 |
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