MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous external links, with one specifically pointing to a URL containing 'windows 7 ultimate 64 bit loader download', suggesting a lure for pirated software. Heuristics indicate a password-protected archive lure and a visual download button, common tactics for phishing or malware delivery. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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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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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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://cructi.ru/uplcv?utm_term=windows+7+ultimate+64+bit+loader+daz+download PDF link annotation
- http://enricobarraco.com/files/mekuluvesasabo.pdfIn PDF document text
- https://dm288.com/slicice/file/56797216022.pdfIn PDF document text
- http://sunrui-ti.com/d/files/wilununovimu.pdfIn PDF document text
- http://th-hl.com///upload/files/92675425770.pdfIn PDF document text
- http://reafamily.lt/ckfinder/userfiles/files/zirejomakonosonidup.pdfIn PDF document text
- http://proclima-membranes.ru/userfiles/file/38704221241.pdfIn PDF document text
- http://stickerbarcode.com/file_media/file_image/file/65955111940.pdfIn PDF document text
- http://ipai-bg.eu/img/file/44243276595.pdfIn PDF document text
- http://zeci.nl/im/image/zakobusufe.pdfIn PDF document text
- http://hkalc.com/userfiles/ludinakilelu.pdfIn PDF document text
- http://getwealthythisyear.com/ckfinder/userfiles/files/11290116415.pdfIn PDF document text
- http://intproplaw.com/admin/uploads/file/99471841055.pdfIn PDF document text
- http://bellamy.tw/uploads/files/202109070848556441.pdfIn PDF document text
- http://bergfin.se/wp-content/plugins/formcraft/file-upload/server/content/files/16132a0f1a486e---jirev.pdfIn PDF document text
- https://preprodpcb.com/userfiles/files/vikexemebuzuzowibisunat.pdfIn PDF document text
- https://xn--80aaa1anac6cg.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/679c8fbcf4f53afb9a6a7cb3a397c524/45946547400.pdfIn PDF document text
- http://grawerlik.pl/userfiles/file/budugotobuwerufobomigeb.pdfIn PDF document text
- http://thementalhealthadvocates.org/files/userfiles/file/pewanubafivi.pdfIn PDF document text
- https://suacuachuyennghiep.com/uploads/files/pijuf.pdfIn PDF document text
- http://latiendasegura.com/contable_prueba/userfiles/file/76494010250.pdfIn PDF document text
- https://congthuonghotel.vn/app/webroot/files/images/pages/files/56770634804.pdfIn PDF document text
- http://almar-bus.pl/userfiles/file/10166065871.pdfIn PDF document text
- http://enidental.com/userfiles/file/20210907224512.pdfIn PDF document text
- https://nordavril.com/userfiles/file/78155090865.pdfIn PDF document text
- http://torgoborud.org/images/file/78660944548.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_off0000f200.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF200 | 11084 bytes |
SHA-256: 92695533694198b30bc4a400d373cbe9b6ad9e71fc75381e11aac4f35d896b1b |
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font_01_sfnt_off00010bf9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BF9 | 18776 bytes |
SHA-256: e86f815bdb733d03a23b63882fe7e4e68f6bcd5070467cb7c8b0abb6aa1537b0 |
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font_02_sfnt_off00013cc7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13CC7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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