MALICIOUS
134
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 and ClamAV detection strongly indicate malicious intent. The sample also exhibits characteristics of a link farm, with numerous external URLs pointing to PDF files, suggesting a phishing or malware distribution campaign. The embedded JavaScript likely facilitates the redirection to these external resources.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://tese.in/ckfinder/userfiles/files/23985854735.pdf In PDF document text
- http://viquadro.com/userfiles/files/75738938166.pdfIn PDF document text
- http://www.sctiec.com/up_files/FCK/file/kilepepokaw.pdfIn PDF document text
- http://viettruss.com/upload/file/kafirajajivelorofuveti.pdfIn PDF document text
- http://autothudo.vn/upload/fck/file/zomemamogepujujeroja.pdfIn PDF document text
- http://arc-en-cielproduce.com/ckfinder/userfiles/files/safikelekulelejaruzuxene.pdfIn PDF document text
- http://clerus.hu/files/file/kozekosikajijadidizaju.pdfIn PDF document text
- https://brazilairporttransfers.com/ckfinder/userfiles/files/ropimuretidajosubo.pdfIn PDF document text
- https://xn--64-mlcufjjaii0l.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/bc0d7723b74a32ad6022be0c71226439/wegufizatonofuzaweva.pdfIn PDF document text
- http://xn----7sbicwad4afgcgd5aph7d5e.xn--p1ai/ckfinder/userfiles/files/mewivip.pdfIn PDF document text
- http://fsnmmaterials.com/UPFILE/userfiles/files/21106432547.pdfIn PDF document text
- https://linhquan-group.com/upload/ck/files/mezup.pdfIn PDF document text
- http://meadescafe.com/userfiles/file/78672938600.pdfIn PDF document text
- http://eros-arena.name/eros/userfiles/file/jivudolilasa.pdfIn PDF document text
- http://eros-arena.de/eros/userfiles/file/83066481357.pdfIn PDF document text
- https://mmagame.com/userfiles/file/25288127137.pdfIn PDF document text
- http://tnslib.su/userfiles/files/milimuputizebabatuxidupit.pdfIn PDF document text
- https://ginecologmuresan.ro/ckfinder/userfiles/files/21455799958.pdfIn PDF document text
- https://raljob.com/userfiles/file/95680943243.pdfIn PDF document text
- http://haiqi-machine.com/d/files/27135508132.pdfIn PDF document text
- http://immodraft.nrw/images/architekten_agentur_images_/file/midatukepututiz.pdfIn PDF document text
- http://xn----7sbicwad4afgcgd5aph7d5e.xn--p1ai/ckfinder/userfiles/files/venegosumalotexi.pdfIn PDF document text
- http://piannocreativo.com/js/new/fckeditor/userfiles/file/21380824583.pdfIn PDF document text
- http://www.cpnatacao.pt/backoffice/ckfinder/userfiles/files/978096408.pdfIn PDF document text
- https://mystruggle.uk/indigo/ckfinder/userfiles/files/vimisokixomutu.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=nursing+foundation+book+by+potter+and+perry+pdf+free+downloadPDF link annotation
- 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_off0000e860.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE860 | 19344 bytes |
SHA-256: a70e378c57ec1b141f978ca48389f93db4bb7d7c31379e833ce4928ae5c50af4 |
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font_01_sfnt_off000119e6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119E6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000131fd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x131FD | 11180 bytes |
SHA-256: bc9b70a86ad20882b59e88a2e99bc962fcc06cfa5ecab3bd6f02d8a90dca0d89 |
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