MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' indicates the document is designed to trick users into downloading a password-protected archive, a common tactic to bypass gateway security. The presence of numerous embedded URLs, many pointing to PDF files on various domains, suggests a link farm designed to obscure the true malicious intent and potentially host further stages of an attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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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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://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/161424e943cb3a---molosixobufuxuxuvaxivo.pdf
- http://vaness-sens.fr/ckfinder/userfiles/files/xalukivosa.pdf
- https://mlbcsimleague.com/ckfinder/userfiles/files/tusudizulitisewunon.pdf
- https://www.pharmawell.eu/ckfinder/userfiles/files/22241712744.pdf
- https://zlato-stribro-investice.com/upload/files/23826566947.pdf
- http://movitecnic.com/ressource/site-image/files/98755800511.pdf
- http://harrodsrentacar.com/public_html/userfiles/file/kudivulokozuxuretab.pdf
- https://marblobathware.com/app/webroot/img/files/mipiginunexalurose.pdf
- https://multimetrics.com/ckfinder/userfiles/files/66663291470.pdf
- http://cleannshieldflorida.com/wp-content/plugins/super-forms/uploads/php/files/8cb4e0105f7d1f00ed0cdf4c22af2454/89785520569.pdf
- http://alpes-de-haute-provence.proximeo.com/ckfinder/userfiles/files/28832022406.pdf
- https://vaynhanh365.net/contents/files/kidoxitudixasapomu.pdf
- https://marblo.marblobaths.ph/app/webroot/img/files/9773423331.pdf
- https://pharmawell.eu/ckfinder/userfiles/files/kafezaz.pdf
- http://xn--sanitrprofi-p8a.ch/fckeditor/editor/images/file/jewatux.pdf
- http://chothuethietbi.info/img/files/vewijerevipigoni.pdf
- http://criminisiepartners.it/userfiles/files/48295814517.pdf
- https://hongdung.vn/ckeditor/images/files/fakuwadavurugisamovu.pdf
- http://lotusromeo.fr/app/webroot/files/userfiles/files/bivasulumafexikanosaxoten.pdf
- http://weighlessthisyear.com/ckfinder/userfiles/files/fudilumijuwexasumi.pdf
- http://debandhelder.nl/ckfinder/userfiles/files/saninavebe.pdf
- http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/695153a77bc753e804ca21db7b9d9a7a/dabademako.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=how+to+retrieve+deleted+messages+on+messenger+android
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d573.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD573 | 16792 bytes |
font_01_sfnt_off0000ed85.binb22bb6122b351f066725610220304d5d23485ab5aae24f86f5cf171de042009a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED85 | 18728 bytes |
font_02_sfnt_off00011e15.bin82bc45ac1ddc001da9f59037d4faa22df9d28761a30bef74915841083b1324b9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E15 | 10732 bytes |
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