MALICIOUS
74
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, a common technique for executing malicious code within documents. The ML classifier strongly indicated maliciousness. The sample also exhibits characteristics of a link farm, with numerous external URLs pointing to PDF files, suggesting a potential phishing or malware distribution campaign. The embedded JavaScript likely facilitates the redirection to these external resources.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 5
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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://itandem.net/ckfinder/userfiles/files/jifusereruputowudafej.pdf In PDF document text
- http://thanhnienxp.com/vietkiendo/upload/file/50217375549.pdfIn PDF document text
- http://dekobonner.de/userfiles/file/57032678504.pdfIn PDF document text
- http://combatkuntao.com/ckeditor/ckfinder/userfiles/files/24337405302.pdfIn PDF document text
- http://khojedu.net/userfiles/file/xubixewujam.pdfIn PDF document text
- http://apsons.eu/files/file/wixonavezebedixikozetovum.pdfIn PDF document text
- http://luluscafeonline.com/uploads/files/95387534706.pdfIn PDF document text
- http://ljjxmining.com/uploadfile/file///2021092909562970.pdfIn PDF document text
- http://hak-al.com/resimler/files/zewewa.pdfIn PDF document text
- http://www.kizkulesikizogrenciyurdu.com/public/ckfinderuploads/files/6599576417.pdfIn PDF document text
- https://diedacorporation.net/freesiafiles/file/10369692108.pdfIn PDF document text
- http://www.ccengis.be/applications/ckeditor/addons/ckeditor/ckfinder/userfiles/files/midagapademu.pdfIn PDF document text
- http://rulife.ru/ckfinder/userfiles/files/93387533701.pdfIn PDF document text
- http://rasciindia.com/firetech/ckupload/files/78310000180.pdfIn PDF document text
- http://furkansigorta.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1615f95909db0b---puzufeturizutegadowigil.pdfIn PDF document text
- https://conexus-study-abroad-travel.com/ckfinder/userfiles/file/tesezalaxixelavijazet.pdfIn PDF document text
- http://rgn2u.com/userfiles/files/87982814635.pdfIn PDF document text
- https://radmangroup-ye.com/rgfiles/file/31703096795.pdfIn PDF document text
- http://cleanyachts.it/writable/public/userfiles/file/33056489711.pdfIn PDF document text
- http://bookblog.kr/data/file/files/69162044875.pdfIn PDF document text
- https://www.travelknowhowscotland.co.uk/assets/js/ckfinder/userfiles/files/28734414539.pdfIn PDF document text
- http://kaizousha.com/js/upload/files/fepiwazekem.pdfIn PDF document text
- http://sbkf.org/files/files/49768074145.pdfIn PDF document text
- http://mfo-fond.ru/ckeditor/ckfinder/userfiles/Images/files/monifajupanod.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=how+many+days+pregnant+is+full+termPDF link annotation
- https://lapdonline.org/file/todisekiligez.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_off0000b694.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB694 | 15772 bytes |
SHA-256: fc09ad153eb8be0d892624f4bdc184c15f7bb76a51d20f2736eb5ffbc1788062 |
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font_01_sfnt_off0000de86.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE86 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f69d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF69D | 11132 bytes |
SHA-256: 4bde4f7bee76d81bf749ffb6be1f29978d8ebffeb782eaef595fcfc63750943e |
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