MALICIOUS
94
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and multiple external URIs, indicating an attempt to redirect the user to malicious websites. The heuristic 'SE_CALLBACK_LURE' suggests a phishing or tech-support scam context, likely aiming to exploit the user's trust. The ML classifier strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 0.9923
Heuristics 6
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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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://cructi.ru/uplcv?utm_term=react+native+ios+example PDF link annotation
- http://gocreate.termall.pl/upload/fck/file/zefedojowuwigisilatuwaf.pdfIn PDF document text
- http://phubozena.pl/userfiles/file/62520347106.pdfIn PDF document text
- http://irvinenott.co.uk/ckfinder/userfiles/files/wexapedizesi.pdfIn PDF document text
- https://partnermind.cz/images/files/kexedexixib.pdfIn PDF document text
- http://amy-tsai.com/images_express/userfiles/files/6677313736.pdfIn PDF document text
- https://geneticapanama.com/userfiles/file/42936785484.pdfIn PDF document text
- http://yourtruck.be/upload/ckeditor/file/14010408492.pdfIn PDF document text
- http://www.stratcareerservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132e7371d582---xolaxidedipivexoxafokelu.pdfIn PDF document text
- http://sparan-art.ru/ckfinder/userfiles/files/kesopozogofut.pdfIn PDF document text
- http://fli.edu.mn/ckfinder/userfiles/files/46594187387.pdfIn PDF document text
- http://suachuamaydemtien.biz/userfiles/file/46167556764.pdfIn PDF document text
- http://pc580.cn/upload_fck/file/2021-9-5/20210905110333370729.pdfIn PDF document text
- https://memorybg.net/app/templates/js/ckfinder/userfiles/files/tobutirezawamiw.pdfIn PDF document text
- https://szabobuszrendeles.hu/files/files/tabasatunot.pdfIn PDF document text
- http://derkwoo.com/upload/editor/files/jowalogusot.pdfIn PDF document text
- http://ricettebiagi.it/uploads/assets/file/zapigisanige.pdfIn PDF document text
- https://cvssteelex.com/ckfinder/userfiles/files/jogafazifetowixoxezuvez.pdfIn PDF document text
- http://baodieptailor.com/uploads/2021-09-12/images/files/dufuzatikositolu.pdfIn PDF document text
- http://popnmusic.fr/userfiles/file/56645003150.pdfIn PDF document text
- http://kolaykanal.com/userfiles/files/97369128333.pdfIn PDF document text
- http://datong-travel.tw/upload/ckeditor/files/20210913060118.pdfIn PDF document text
- http://tiwtactic.com/userfiles/files/gotuzumived.pdfIn PDF document text
- https://ngaa.org.au/application/third_party/ckfinder/userfiles/files/81852259963.pdfIn PDF document text
- http://studiotecnicostradi.eu/userfiles/files/40902162831.pdfIn PDF document text
- http://jeykrishnaclub.com/images/file/69063410114.pdfIn PDF document text
- http://glassick.com/userfiles/file/lesetob.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_off000192be.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x192BE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0001aad0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1AAD0 | 20752 bytes |
SHA-256: e5d7931fce727f475e3a9564aa752b3c36300c9005a0145eaab8d8038776ab01 |
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font_02_sfnt_off0001e0ed.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1E0ED | 10648 bytes |
SHA-256: f6ec55fb641d8ea03b4cc52184b9ed4de4b91ea6acd5d7d6ec9972b35778bd43 |
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