MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1059.007 JavaScript
T1566.001 Spearphishing Attachment
The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The presence of embedded JavaScript and a large number of external links, many pointing to potentially disposable domains, suggests a phishing or credential harvesting attempt. The document body is heavily obfuscated, preventing a clear understanding of its specific lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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 http://ahjygjg.com/upload_fck/file/2021-9-23/20210923211639181907.pdf In PDF document text
- http://tylincms.com/userfiles/files/feramosobupuwipopoz.pdfIn PDF document text
- https://emilline.dk/ckfinder/userfiles/files/gakatazubamezeti.pdfIn PDF document text
- https://www.karavanlakesfet.com/wp-content/plugins/super-forms/uploads/php/files/b8db5e442d00e4afb7652f0e8199418b/66364715502.pdfIn PDF document text
- http://ceraunavoltapizzeria.it/userfiles/files/11043394529.pdfIn PDF document text
- http://radio-salsa.fr/php/rs/filesupload/file/dejiwiw.pdfIn PDF document text
- http://m-s-g.ru/userfiles/files/sowifepubazepexam.pdfIn PDF document text
- https://silatur.com/js/ckfinder/userfiles/files/kumaxuru.pdfIn PDF document text
- http://cmtdental.com/upload/ckimg/files/16103882576.pdfIn PDF document text
- http://niengrangchuyensau.com/upload/contentFile/file/xefikarutekunosaloz.pdfIn PDF document text
- http://zerosquareonline.com/file/torexokebiwuj.pdfIn PDF document text
- http://ackerviewguesthouse.com/userfiles/file/liwonukijefekasolanipimej.pdfIn PDF document text
- http://kapalishakti.com/ckfinder/userfiles/files/69140396276.pdfIn PDF document text
- https://alakharia.com/public_html/userfiles/file/vexifefepedo.pdfIn PDF document text
- http://er-trans.com/img/produkty/files/94511753469.pdfIn PDF document text
- http://chickenwild.com/upload/contents/images/images/zobexosi.pdfIn PDF document text
- http://yoron.net/up/files/vaxezisulifatapajisevam.pdfIn PDF document text
- http://autosvanbeek.nl/mindcms/js/ckf/userfiles/files/pisexomawokowem.pdfIn PDF document text
- http://zehanbiopharma.com/upload/files/fulixuzedobalawabikufir.pdfIn PDF document text
- http://sarkanyhajo.hu/files/file/rilemumo.pdfIn PDF document text
- http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/8k3v4t12fuia4tra55ofeik6h6/moxokajowe.pdfIn PDF document text
- http://wamer.org/userfiles/file/4466040262.pdfIn PDF document text
- https://vinasimex.com/uploads/file/nerunodegusox.pdfIn PDF document text
- http://immobilieninvestors.net/userfiles/file/karomuwufokanojadap.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=lump+behind+2+year+old%27s+earPDF 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_off0000b1ea.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB1EA | 17100 bytes |
SHA-256: 193afb7a208277349c098e495e1fba07b5fff2787798516cd2d1a5ef2639f95f |
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font_01_sfnt_off0000dd21.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD21 | 11024 bytes |
SHA-256: c228e028d87c48749aff3be4aa7e8d34c89693ec09f291b82587db61af82d3ad |
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font_02_sfnt_off0000f665.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF665 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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