MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of numerous external URLs, including one with a 'utm_term' parameter suggesting tracking, points towards a phishing or credential harvesting attempt. The 'SE_URGENCY_LURE' heuristic further supports the phishing pretext, aiming to prompt immediate user action.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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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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://infrive.ru/uplcv?utm_term=michael+connelly+pdf PDF link annotation
- http://miyagi.chi-kara.net/Upload/files/50519062569.pdfIn PDF document text
- http://itfkarnataka.com/cvsprojects/SSK/Source/2.0.0/images/files/56806890640.pdfIn PDF document text
- http://gevenschoenen.nl/ckfinder/userfiles/files/91120013404.pdfIn PDF document text
- http://ktcyy.com/ckfinder/userfiles/files/47040414580.pdfIn PDF document text
- http://dharmapuridiocese.com/svnprojects/DHD/Source/images/files/39672680039.pdfIn PDF document text
- http://quatanggiabao.com/images/uploads/files/40257999706.pdfIn PDF document text
- https://servicio-mexico.com/images/file/velipo.pdfIn PDF document text
- http://arcos-eff.it/userfiles/files/rojisetulubaparovete.pdfIn PDF document text
- https://ancoraeducacion.com/images/63114620103.pdfIn PDF document text
- http://gr-chem.com/upload/files/9062174881.pdfIn PDF document text
- https://luxurybaths.marblobaths.ph/app/webroot/img/files/bofenogix.pdfIn PDF document text
- https://baxsporthorses.com/userfiles/file/25848915.pdfIn PDF document text
- http://konditsionery-reutov.ru/upload_picture/file/rumulirawurali.pdfIn PDF document text
- http://goodwill.pl/userfiles/file/norevatibevilub.pdfIn PDF document text
- https://www.xcelsus.de/wp-content/plugins/formcraft/file-upload/server/content/files/161531f6d1b019---6224815117.pdfIn PDF document text
- https://svenjakretschmer.com/ckfinder/userfiles/files/30676765786.pdfIn PDF document text
- https://magazinul-de-instalatii-sanitare.ro/app/webroot/files/userfiles/files/mojeloxoto.pdfIn PDF document text
- http://cistenivytahu.cz/upload/file/57401895922.pdfIn PDF document text
- http://xn--80aa5alfu.kz/file/likozusutakuwujutu.pdfIn PDF document text
- http://bajkolandia-leszno.pl/userfiles/file/1540678678.pdfIn PDF document text
- http://imapbook.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/bezirudigavupa.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_off0000d41e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD41E | 20048 bytes |
SHA-256: 8470f4c4954105b412ba8adf41a46ff8c100489cbe60a0b7b9385fcc00d50c9e |
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font_01_sfnt_off000107b7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x107B7 | 10456 bytes |
SHA-256: ca5b282274ef16059b3d1023225a920efaffce9ad34e56685fe5c29d03e2adb7 |
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font_02_sfnt_off00011f5f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F5F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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