MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was flagged by multiple heuristics, including a critical ClamAV detection for Pdf.Phishing.Trojan. The presence of numerous external URIs and a heuristic indicating a link farm on disposable hosting suggests a phishing or malware distribution attempt. The document body is heavily obfuscated, but the overall structure and URL patterns are consistent with malicious lures.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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://nomylo.ru/uplcv?utm_term=cara+naikkan+followers+instagram+free+2020 PDF link annotation
- http://yugreat.com/filespath/files/20210909230206.pdfIn PDF document text
- https://vcubusinesssolutions.com/userfiles/file/6413737064.pdfIn PDF document text
- http://www.luminicaambiental.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614381cf89150---pewulomabesifoduz.pdfIn PDF document text
- https://shotclock.ca/wp-content/plugins/super-forms/uploads/php/files/1d7d14494e061a2bd7f091c92762b131/jabiwetufo.pdfIn PDF document text
- http://quangcaosmsgiare.com/media/ftp/file/3432291964.pdfIn PDF document text
- http://agataklimowska.pl/userfiles/file/nejalagabuwopotejuv.pdfIn PDF document text
- https://uclerbaklava.com/resources/file/57772853023.pdfIn PDF document text
- http://studioingegneramato.com/userfiles/files/jezabuxokotekagexomibud.pdfIn PDF document text
- http://tunglamgarden.com/images/fck/file/rivijaluxirogenes.pdfIn PDF document text
- http://metisentry.net/ckfinder/userfiles/files/xegavexolep.pdfIn PDF document text
- https://soccerauquebec.com/userfiles/file/51900405056.pdfIn PDF document text
- http://stacjaregeneracja.pl/userfiles/file/palupexuriguw.pdfIn PDF document text
- https://foodsafebox.com/ckfinder/userfiles/files/zibel.pdfIn PDF document text
- http://www.tiande-global.com/ckfinder/userfiles/files/tizifulolekubatisofuk.pdfIn PDF document text
- http://oldmotorsclub.com/files/file/pipagugabijoxiwowomexurud.pdfIn PDF document text
- http://insuralead.com/userfiles/file/73525641795.pdfIn PDF document text
- https://bwhe.in/ckfinder/userfiles/files/76108440884.pdfIn PDF document text
- https://daotaolaixesontay.com/uploads/file/taranudovarafaxofezaba.pdfIn PDF document text
- https://digireg.ru/upload/zevira.pdfIn PDF document text
- http://thegioichuyendong.info/app/webroot/upload/files/towakuzej.pdfIn PDF document text
- http://shimamura-mail-order.com/userfiles/file/1847866284.pdfIn PDF document text
- https://cafesca.org/ckfinder/userfiles/files/fegixebimowuda.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_off0000aeb1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAEB1 | 11008 bytes |
SHA-256: 5399380177efbe7766465b431565409d3a86cc1ccab8b04ba65ccbf2df317054 |
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font_01_sfnt_off0000c868.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC868 | 15888 bytes |
SHA-256: 50392dc31397d8f8f7be30168060fd5fd2f88f2d4f3e562ae87ffd81daa0ea5e |
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font_02_sfnt_off0000f07d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF07D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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