MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains numerous embedded links, many pointing to unknown domains, suggesting a link farm or phishing lure. The presence of PDF_SEO_DISPOSABLE_LINK_FARM heuristic further supports this, indicating a strategy to obscure the true destination or host a large number of redirects. No scripts were extracted, but the overall structure points to a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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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://satbietthu.com/luutru/files/gisevur.pdf In PDF document text
- http://www.zaluziemalina.cz/userfiles/file/96152015482.pdfIn PDF document text
- http://alburigiott.it/userfiles/files/sajazulorol.pdfIn PDF document text
- http://csc-0898.com/userfiles/file/20210902164727_1h98vs.pdfIn PDF document text
- http://maynenkhiinverter.com/media/ftp/file/jujomipifazegane.pdfIn PDF document text
- http://hermandadperdon.es/userfiles/file/mulavanu.pdfIn PDF document text
- http://angelofthewinds.net/ckfinder/userfiles/files/31961920436.pdfIn PDF document text
- http://gtshotel.it/images/file/pemixududimizimovi.pdfIn PDF document text
- http://surmounttravel.com/userfiles/files/dafositigudukasuvixu.pdfIn PDF document text
- https://marblo.com/app/webroot/img/files/fexutube.pdfIn PDF document text
- https://xn--pssa17sw71b.tw/upimages/files/jexexi.pdfIn PDF document text
- http://pwmtqatar.net/userfiles/file/ronoxukejukebupevuz.pdfIn PDF document text
- https://cowichanmusicfestival.com/userfiles/file/39565518270.pdfIn PDF document text
- https://ecoquimica.cl/dinamicos/uploads/file/12919960640.pdfIn PDF document text
- http://covina.crazyrockinsushi.com/uploads/files/29313022676.pdfIn PDF document text
- https://turkeyinsurance.info/images/file/magiwakalo.pdfIn PDF document text
- http://toyotarent.tw/FileData/ckfinder/files/20210904_27A2716304D513F3.pdfIn PDF document text
- http://antansconstructions.com/ckfinder/userfiles/files/lifegi.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613cdd9a581a0---tesikuduzigetepis.pdfIn PDF document text
- http://dmhu.eu/uploads/uplib/file/rewojazovedinakojamunevom.pdfIn PDF document text
- https://granitabrasive.com/editor_up/2030635737.pdfIn PDF document text
- https://keluargamimpi2.com/contents/files/bunapibadototufe.pdfIn PDF document text
- https://prospr.fr/ckfinder/userfiles/files/tifemikuzamipe.pdfIn PDF document text
- https://infravoip.com/wp-content/plugins/super-forms/uploads/php/files/310222a0371c36384ee6c63b4535a35d/tojirisomozofejuxi.pdfIn PDF document text
- http://julianina.de/upload/file/najunozotefu.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=use+barcode+scanner+androidPDF 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_off0000b835.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB835 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d04c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD04C | 10364 bytes |
SHA-256: 92f29a394c490b0e0a7a87aca30fef3f5f1d7d2f1f982897414632a8cf8974a5 |
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font_02_sfnt_off0000e7cf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE7CF | 16268 bytes |
SHA-256: f4f9019159745658e78f49caa01dc9937a700fa1369a2c828c62c4369ebb4caf |
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