MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics, including ML classification and ClamAV, indicating malicious intent. The presence of numerous external URIs, some pointing to link farms on disposable hosting, suggests a phishing or malware distribution campaign. Although no scripts were extracted, the document body's structure and the heuristic 'SE_URGENCY_LURE' imply a social engineering tactic to prompt user interaction with the embedded links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
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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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://queure.ru/uplcv?utm_term=android+step+counter+built+in PDF link annotation
- https://shen-su.eu/gfx/userfiles/files/marimagatulewu.pdfIn PDF document text
- https://recapress.com/ckfinder/userfiles/files/ritijofuvaliravet.pdfIn PDF document text
- http://abwingstop.com/uploads/files/salosizugisemazuguvofoku.pdfIn PDF document text
- http://sherwoodonionfestival.com/ckfinder/userfiles/files/bikugowazofutoxevijebof.pdfIn PDF document text
- http://taociren.com/upload/file/210906051949087627322g548iazn7.pdfIn PDF document text
- http://capitolmetrophysicaltherapy.com/userfiles/file/75400146937.pdfIn PDF document text
- http://hide-bo.com/img/tmp/file/1990747643.pdfIn PDF document text
- http://djpress.pl/Image/files/muxazonodolurut.pdfIn PDF document text
- https://delphin-bau.com/ckfinder/upload/files/90390804518.pdfIn PDF document text
- http://perfekt-dom.pl/designhome/admin/userfiles/file/ziroseragemakirevofejite.pdfIn PDF document text
- https://veneziashowroom.ro/app/webroot/files/userfiles/files/wesopuva.pdfIn PDF document text
- http://launensia.cz/ckfinder/userfiles/files/27017451353.pdfIn PDF document text
- http://for-rent-aalst.com/wp-content/plugins/formcraft/file-upload/server/content/files/161496b8851f04---tepus.pdfIn PDF document text
- http://yourbuilding.ru/userfiles/files/92480913204.pdfIn PDF document text
- http://www.mondzorgvesa-voorschoten.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613bd420bceac---20741080909.pdfIn PDF document text
- https://huanghecables.com/d/files/lojoveveloleva.pdfIn PDF document text
- http://szyqjsj.com/UploadFile/file/20210919023405525.pdfIn PDF document text
- https://kalashad.com/userfiles/file/pijexom.pdfIn PDF document text
- https://0800-707-808.com/upload/ckfinder_temp/files/20210902135510.pdfIn PDF document text
- http://thaide.org/userfiles/file/mujigarapil.pdfIn PDF document text
- http://archgeo-leszno.pl/uploads/userfiles/files/9418574082.pdfIn PDF document text
- http://mq-water.net/upload/44089971951.pdfIn PDF document text
- http://baovephuongtroi.com/vietkiendo/upload/file/79691914559.pdfIn PDF document text
- http://giustizianuova.it/userfiles/file/18074526314.pdfIn PDF document text
- https://myclubowners.travelenvogue.com/userfiles/files/62853542251.pdfIn PDF document text
- http://we-women.de/default/files/uploads/file/16392964497.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_off0000eabe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEABE | 10568 bytes |
SHA-256: c27eb710333ccc28ec9d8f1a6daf273c709ccf3163cb5b220ec3e75f227d1cd0 |
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font_01_sfnt_off000102bf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x102BF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011ad1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11AD1 | 18452 bytes |
SHA-256: fa9a48df272f9cddb812057e51d838fc7028ace29dee75c70e2339229c6e98a9 |
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