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 PDF contains numerous links to external sites, many of which appear to be part of a link farm hosted on disposable domains, suggesting a phishing or credential harvesting operation. The presence of 'utm_term' parameters in some URLs further supports this, as they are often used for tracking marketing campaigns, which can be adapted for phishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://krisoc.ru/uplcv?utm_term=mv+master+app+original+version PDF link annotation
- http://npi-management.com/ressource/site-image/files/tukejekozoborize.pdfIn PDF document text
- http://dribblebar.pl/userfiles/file/xoniju.pdfIn PDF document text
- http://jrecchina.com/ckeditor/ckfinder/userfiles/files/gatufarasobixogogew.pdfIn PDF document text
- http://incomingmakedonia.com/files/files/veletanivokugojotodo.pdfIn PDF document text
- http://futimisdev.com/userfiles/file/karazuvunufa.pdfIn PDF document text
- http://grabnerestriche.at/tadadogu.pdfIn PDF document text
- http://ricarda-allegra.de/userfiles/file/45150686333.pdfIn PDF document text
- http://www.waetsukai.jp/system/ckfinder/userfiles/files/riletukenugumiz.pdfIn PDF document text
- http://lixupeng.com/uploads/files/tuvemapokidukoj.pdfIn PDF document text
- http://polymer-optix.de/userfiles/file/nimabasuve.pdfIn PDF document text
- http://nepodoshlo.kz/ckfinder/userfiles/files/tobegakoxitari.pdfIn PDF document text
- http://hyunsin.net/userfiles/file/turuvirekolakit.pdfIn PDF document text
- https://amartzon.store/wp-content/plugins/super-forms/uploads/php/files/f741754a98f4cfe68f6ab6b7a9cb7260/lufusejet.pdfIn PDF document text
- https://nikosdimos.gr/userfiles/file/dadoravowe.pdfIn PDF document text
- https://bravo-hk.com/userfiles/file/gakedaxupefifikelum.pdfIn PDF document text
- http://bilateralmatters.org/userfiles/file/16913420449.pdfIn PDF document text
- https://geya99.com/ckfinder/userfiles/files/vuzanuxupisox.pdfIn PDF document text
- http://tofuyatogo.com/uploads/files/4683737483.pdfIn PDF document text
- http://2girlstrippin.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139bdc9e4a29---pavilozagurezanopi.pdfIn PDF document text
- http://eis-pieschel.de/UserFiles/File/80072303509.pdfIn PDF document text
- http://giasuthanhdat.vn/Images_upload/files/92220885849.pdfIn PDF document text
- https://podimercrm.com/img/files/tamememif.pdfIn PDF document text
- https://art-gallery.mn/uploads/files/75601835584.pdfIn PDF document text
- https://kp-bs.ru/upload/files/jaduzufoxeruzaxel.pdfIn PDF document text
- http://status-go.net/gfx/userfiles/files/kofurajipovotileraf.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_off0000d19d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD19D | 10656 bytes |
SHA-256: 051674041bb1600bc6f99ff005e44477f758956463a7a852e88825c5ef646f9d |
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font_01_sfnt_off0000ea02.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA02 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010214.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10214 | 18800 bytes |
SHA-256: 1acfb820dbf2c6b249b4b6867ca780462e69a453d1e386f8d1e9faa31381ffc1 |
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