MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is a common technique for executing malicious code. The PDF also contains numerous external URIs pointing to disposable domains, suggesting a phishing or link-farming operation. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to redirect users to malicious sites or download further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 6
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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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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://smidgel.ru/uplcv?utm_term=applock+fingerprint+apk PDF link annotation
- http://yaqeen-eg.com/userfiles/file/gopaxoduzebuvafa.pdfIn PDF document text
- http://elcolono.net/userfiles/files/70866558033.pdfIn PDF document text
- http://redactron.com/userfiles/file/37154398622.pdfIn PDF document text
- http://machi-tomo.xyz/js/ckfinder/userfiles/files/6814531196.pdfIn PDF document text
- https://europacreativaeuskadi.eu/files/galeria/files/bibatovofifo.pdfIn PDF document text
- https://www.lang-mayer.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613a795d4008d---41695497247.pdfIn PDF document text
- http://jpsacademy.com/slbdavbatala/userfiles/file/guxelebunuxiweboxenaxivu.pdfIn PDF document text
- https://onutglen.com/caningest/images/file/sulebuxuvot.pdfIn PDF document text
- http://swiss-ex.com/images/blog/file/46275836245.pdfIn PDF document text
- https://rubenoferro.com/userfiles/file/jopitizajabanowarepena.pdfIn PDF document text
- http://eyela.kr/uploadfile/fckeditor/file/tudetazozusuluperi.pdfIn PDF document text
- http://tajesink.com/Uploadfiles/files/koxabiwamesidukizepeziruk.pdfIn PDF document text
- https://kolorubursztynu.kolorubursztynu.pl/web/uploads/files/8045456292.pdfIn PDF document text
- http://dogomanhnghia.com/uploads/files/91039246671.pdfIn PDF document text
- http://itaxabc.com/userfiles/file/20210903000239_24520735.pdfIn PDF document text
- http://ildongwire.com/userfiles/file/livojulijukutaxo.pdfIn PDF document text
- http://www.armstrongre.com/files/files/kusesiboresip.pdfIn PDF document text
- https://everywheregenes.com/uploadfile/qu26_qu106_com/files/xipulasilamobosan.pdfIn PDF document text
- http://www.novosib-sport.ru/ckfinder/userfiles/files/vogizejujolotak.pdfIn PDF document text
- https://earthchartercities.org/wp-content/plugins/formcraft/file-upload/server/content/files/16138666399797---41502233709.pdfIn PDF document text
- https://learnrkb.jugalbandiresearch.com/ckfinder/userfiles/files/87550242265.pdfIn PDF document text
- https://www.savininkai.lt/ckfinder/userfiles/files/81669217773.pdfIn PDF document text
- https://hotelmitrutarija.com/uploaded/files/16617024428.pdfIn PDF document text
- http://tiquital.com/documentos/file/mowutamoju.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_off0000d33c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD33C | 18964 bytes |
SHA-256: 2dd2249963ee9b07eeadc2a6cae0dfaf369fcdbcd9bc3a0bab56788a952fb1b7 |
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font_01_sfnt_off0001052c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1052C | 10560 bytes |
SHA-256: 5c0f3bd09399ecaa6d5de6d1008ca904ebc12865f52f8d3e811a8b4584403ac9 |
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font_02_sfnt_off00011d71.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D71 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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