MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The presence of numerous embedded URLs, many pointing to disposable domains and employing UTM parameters, suggests a phishing or malware distribution campaign. While no scripts were explicitly extracted, the PDF structure and URL patterns are consistent with attempts to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
Heuristics 5
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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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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://krisoc.ru/uplcv?utm_term=preset+lightroom+mod+apk PDF link annotation
- http://www.39koratmachinery.com/file_upload/files/nerepeforipunilagaxa.pdfIn PDF document text
- http://cinebuzz.be/uploads/userfiles/files/vurizekorolawezid.pdfIn PDF document text
- https://manorhair.com/uploads/files/202109071447154686.pdfIn PDF document text
- https://magerp.org/upload/files/gepavanivavumaxanuxugada.pdfIn PDF document text
- http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/1613e2a7ba4302---nigoxivaxinoguge.pdfIn PDF document text
- http://uat.ideadunes.com/projects/ideadunes-portfolio-site/wp-content/plugins/formcraft/file-upload/server/content/files/161352605ca383---vakemip.pdfIn PDF document text
- http://www.emporiocaritaspisa.it/wordpress/wp-content/plugins/formcraft/file-upload/server/content/files/161392336b904f---24912766774.pdfIn PDF document text
- https://vantainoidia.vn/ci/userfiles/files/68029149801.pdfIn PDF document text
- https://tonere.shop/app/webroot/files/userfiles/files/58037773048.pdfIn PDF document text
- https://jiu-hang.com/upfiles/editor/files/67253559973.pdfIn PDF document text
- http://greentreeprep.com/cote_dor_import/admin/ckfinder/userfiles/files/82113667196.pdfIn PDF document text
- http://ski-experience-japan.com/images/blog/file/zines.pdfIn PDF document text
- http://buffagiuseppeinfissi.com/userfiles/files/biwojoxebipa.pdfIn PDF document text
- http://folientastaturen.pl/_data/file/80413184934.pdfIn PDF document text
- https://gruntbudowa.pl/files/file/salobadubuvebefobobix.pdfIn PDF document text
- http://sunil.kr/uploadfile/fckeditor/file/88082407121.pdfIn PDF document text
- http://www.cda.org.hk/ckfinder/userfiles/files/79472808675.pdfIn PDF document text
- https://kamionosnyelvlecke.hu/userfiles/file/kujafiwibagiw.pdfIn PDF document text
- http://highdeal.linkeo.net/ckfinder/userfiles/files/95748880434.pdfIn PDF document text
- http://superfasttv.com/uploads/files/gabawe.pdfIn PDF document text
- http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/161325ece091e4---tifatejiwujifuxozesa.pdfIn PDF document text
- http://chipgene.com/image/files/20210903_084943.pdfIn PDF document text
- https://franchisefarm.franchiseharbor.com/files/files/muvax.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_off0000d5f8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD5F8 | 10828 bytes |
SHA-256: bb497818b6a04c243a1ff553d71173cc70ca5066bfd2ec20b4910f68fe5b8339 |
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font_01_sfnt_off0000eec1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEC1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000106d3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x106D3 | 17244 bytes |
SHA-256: cfa456628b0b814ac59b2e06c6badc406863330f071a49e83def3d7197f4429f |
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