MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. The document contains numerous embedded URLs, many pointing to PDF files on various domains, suggesting a link farm designed to obscure the ultimate destination. The heuristic PDF_SEO_DISPOSABLE_LINK_FARM further supports this, indicating a strategy to distribute links across disposable hosting. No scripts were extracted from this sample.
Machine Learning
- Nyx PDF Classifier malicious score 0.9833
Heuristics 5
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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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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://ourconn.com/userfiles/file/202109030441317600.pdf In PDF document text
- https://playerpress.com/ckfinder/userfiles/files/65576993158.pdfIn PDF document text
- https://thieumaunao.vn/workspace/develop/uploads/ck_upload/files/5407267457.pdfIn PDF document text
- http://surmounttravel.com/userfiles/files/17266903295.pdfIn PDF document text
- http://xn----0tbbbfo0f.xn--p1ai/userfiles/file/larurejamu.pdfIn PDF document text
- http://vietsonplastic.com/uploads/userfiles/file/73320203419.pdfIn PDF document text
- https://valstybestarnyba.com/upckfinder/files/11971545465.pdfIn PDF document text
- http://dvg.asia/ckfinder/uploadfiles/files/fevezisago.pdfIn PDF document text
- https://kalitelivideoizle.com/resimler/files/xafajute.pdfIn PDF document text
- http://friulanapanini.com/images/file/domunematezil.pdfIn PDF document text
- http://ebbers-schilderwerken.nl/uploads/files/86857495383.pdfIn PDF document text
- http://pravkniga.ru/files/userfiles/files/70480326650.pdfIn PDF document text
- https://istanajp2.com/contents/files/80058276737.pdfIn PDF document text
- https://noithatkuongthinh.com/uploads/files/zerikejulesame.pdfIn PDF document text
- https://sts-cct.com/app/webroot/userfiles/files/33945281869.pdfIn PDF document text
- http://okfilm.kr/userData/board/file/pepita.pdfIn PDF document text
- http://papaicountrylodge-longstay.com/user_img/files/64792377936.pdfIn PDF document text
- https://yptea.com/data/fckeditor/files/lomidifegutada.pdfIn PDF document text
- http://yao-cheng.com/uploadfiles/20210915234608.pdfIn PDF document text
- https://centaur.vri.cz/docs/files/sitoxakasuvasez.pdfIn PDF document text
- http://fotofolliasanlazzaro.it/userfiles/files/87332846474.pdfIn PDF document text
- http://samwha.com/upload/userfiles/file/89231090289.pdfIn PDF document text
- http://dfwsedan.com/nbloom/fckuploads/file/temebasef.pdfIn PDF document text
- http://consulcongress.it/uploads/assets/file/16758287356.pdfIn PDF document text
- http://isystemlab.com/admin/ckfinder/userfiles/files/73853041059.pdfIn PDF document text
- https://izometal.net/mm/file/dixibaxirisujibeliwurem.pdfIn PDF document text
- https://www.heainc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613be7306851b---56914387565.pdfIn PDF document text
- https://yellowstonewildlife.com/26929009319.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=free+moving+wallpapers+pcPDF 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_off0000d478.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD478 | 17608 bytes |
SHA-256: dbf7249fdf87f669004371bb5a549457991d5257899b11634c738a153ba4d40f |
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font_01_sfnt_off0001022f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1022F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011a46.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A46 | 10748 bytes |
SHA-256: 038587fac5c22532dd7d0704fbe8d987b2fd58c63fedab008b9dc6bbd09e66f1 |
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