MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. It contains numerous external URIs and is identified as a link farm hosted on disposable domains, suggesting a phishing or malware distribution scheme. The presence of embedded URLs and the nature of the heuristics point towards an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://crysiq.ru/uplcv?utm_term=scr+screen+recorder+pro+apk PDF link annotation
- https://kenhquangcao.vn/uploads/files/ninoserokixavifudober.pdfIn PDF document text
- https://ppuhperspektywa.pl/files/edytor/file/38067404834.pdfIn PDF document text
- http://timavoshipsupply.it/userfiles/file/82241950168.pdfIn PDF document text
- http://xn--c1aejbdnke.xn--p1ai/admin/ckfinder/userfiles/files/xagolexa.pdfIn PDF document text
- http://cbelmira.com/wp-content/plugins/super-forms/uploads/php/files/3b6abfcdd83cddfed62f0aaf1863fa5c/xivalotaguwegimet.pdfIn PDF document text
- https://ukmalayalamnews.com/userfiles/file/barajuvowubamidir.pdfIn PDF document text
- http://www.oknookna.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16143df22c3284---gutelufu.pdfIn PDF document text
- http://xn----7sbbgprpk7biiq.xn--p1ai/admin/ckfinder/userfiles/files/38842866998.pdfIn PDF document text
- https://mk-sito.it/uploads/file/52427675223.pdfIn PDF document text
- https://gagiongvitgiong.com/ckfinder/userfiles/files/neguzerarulerivi.pdfIn PDF document text
- http://istihdamhaberleri.com/upload/ckfinder/files/bugozafamokogufe.pdfIn PDF document text
- https://vhssirimpanam.org/ckfinder/userfiles/files/makesuwevasirisesix.pdfIn PDF document text
- http://cerrutistudio.eu/userfiles/files/sewanakegoremovazasumiw.pdfIn PDF document text
- http://studiolegaletrotta.eu/userfiles/files/5916846296.pdfIn PDF document text
- https://mp2020.csysadmin.com/ckfinder/userfiles/files/68621790101.pdfIn PDF document text
- https://ofly.om-digitalsolutions.cn/upload/files/kuxoxe.pdfIn PDF document text
- http://lejonhund.com/upload/bibem.pdfIn PDF document text
- https://congchunghadong.com/uploads/files/41815156351.pdfIn PDF document text
- http://datcat.vn/2018/file/92013410474.pdfIn PDF document text
- http://bukhatirhomes.com/userfiles/file/86029992231.pdfIn PDF document text
- https://fnb-concepts.com/images/uploads/files/vupimepilusab.pdfIn PDF document text
- https://matao.ro/app/webroot/files/userfiles/files/60377163669.pdfIn PDF document text
- http://cheniou.handysociality.com/upload/files/83692134516.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_off0000c63a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC63A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000de51.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE51 | 10436 bytes |
SHA-256: 8f09a805127a0b26e2d6742d02708102cf872e3625a2f77f8de7efb456a3ac2b |
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font_02_sfnt_off0000f60f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF60F | 19280 bytes |
SHA-256: fec6e9552c119d213a0a5c71b3f6344405754842e762d7c36ab563e1f32a1d6a |
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