MALICIOUS
142
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript and numerous external URIs, indicating an attempt to download and execute a secondary payload. The presence of a 'download button' heuristic and the ML classifier's high confidence score further support its malicious nature. The ClamAV detection as 'Pdf.Phishing.Trojan' strongly suggests a phishing or trojan distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://allytemp.ru/uplcv?utm_term=death+worm+free+mod+apk PDF link annotation
- https://francemonde.news/UserFiles/file/nivogakasoma.pdfIn PDF document text
- https://vietnaminsight.biz/ckfinder/userfiles/files/vuxozofidujiki.pdfIn PDF document text
- http://tomei4x4.jp/js/upload/files/kikoxokizokekefilofu.pdfIn PDF document text
- http://prodesign31.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1612f354633138---zixuliwenunaripugoz.pdfIn PDF document text
- https://eetravel.net/file/58274883771.pdfIn PDF document text
- http://formpart.com/upload/ckfinder/files/wenasiminozitawepawa.pdfIn PDF document text
- http://lnv-cnc.gr/userfiles/file/nuwijetasoritije.pdfIn PDF document text
- https://vanvoorst.info/uploaded/file/xovubibaredagagonefoju.pdfIn PDF document text
- https://360clothing.in/home/www360cl/public_html/uploads/images/files/rededojilubuva.pdfIn PDF document text
- http://27derajat.com/assets/ckfinder/core/connector/php/uploads/files/82220445033.pdfIn PDF document text
- http://abwingsjanaf.com/uploads/files/86492247864.pdfIn PDF document text
- https://www.auto-ecole-acm.com/ckfinder/userfiles/files/pokenifexusezetu.pdfIn PDF document text
- https://nyig.com/files/file/dokojewe.pdfIn PDF document text
- http://mishor-uvk.com/uploads/files/87095378346.pdfIn PDF document text
- http://milwaukee.center/userfiles/file/20458082753.pdfIn PDF document text
- https://biholka.cz/uploades/userfiles/file/41560147655.pdfIn PDF document text
- https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/161406be01c538---11064997364.pdfIn PDF document text
- http://owop.challengersports.com/ckfinder/userfiles/files/36759571081.pdfIn PDF document text
- http://amongelite.com/ci/userfiles/files/56325002835.pdfIn PDF document text
- http://linza-market.ru/upload/files/7602094162.pdfIn PDF document text
- http://7166867.ru/ckfinder/userfiles/files/98130508861.pdfIn PDF document text
- https://pvesc.vn/uploaded/file/89774756473.pdfIn PDF document text
- http://hongsung114.com/files/fckeditor/file/8249121036.pdfIn PDF document text
- http://vertex-decor.com/userfiles/file/82439651652.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_off0000daa0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDAA0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f2b7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2B7 | 10532 bytes |
SHA-256: 3ada436f0f5d6eec8167a76db946421aefb043d2ae57ba10a5a7bd1ba9eae638 |
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font_02_sfnt_off00010ac6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10AC6 | 18048 bytes |
SHA-256: 26b2ccdbfd690f5ceff1f74af67ae5d02adfb46f251c6a0e55f06d227aa47e7f |
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