MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan' and an ML classifier indicating maliciousness. The 'SE_CALLBACK_LURE' heuristic strongly suggests a callback phishing or tech-support scam pretext, aiming to trick users into calling a fraudulent number. While no scripts were explicitly extracted, the presence of numerous external URLs and the nature of the heuristics point towards a phishing or social engineering attack vector, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
Heuristics 6
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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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://medvor.ru/uplcv?utm_term=unless+a+wheat+grain+falls+on+the+ground+and+dies PDF link annotation
- http://exosportsante.fr/ckfinder/userfiles/files/21337242141.pdfIn PDF document text
- http://seibyou-koujien.com/files/files/97600949316.pdfIn PDF document text
- http://kanoonkaraj.ir/dbmanager/filebank/htmlgallery/file///60352222935.pdfIn PDF document text
- https://nusantarabet4d1.com/contents/files/mudesebix.pdfIn PDF document text
- https://kop-trans.pl/uploads/userfiles/files/zevepixukulabopatu.pdfIn PDF document text
- https://hunglivet.com/uploads/files/202109072253596765.pdfIn PDF document text
- http://sweet-sugar.de/images/uploadedimages/file/kezufivomowuxudomiwubov.pdfIn PDF document text
- http://relaxzenter.com/uploads/files/dexedikolorir.pdfIn PDF document text
- http://dopuskvsro.ru/UserFiles/32638559681.pdfIn PDF document text
- http://pressvaluation.net/FCKeditor/editor/filemanager/connectors/userfiles/file/39861506264.pdfIn PDF document text
- http://palaciodelosnavas.com/userfiles/file/metelugip.pdfIn PDF document text
- http://crosswaysrecruitment.com/userfiles/file/55762244769.pdfIn PDF document text
- https://zenmobile.in/jaipriyart/uploads/files/xifepusig.pdfIn PDF document text
- https://griby.biz/ckfinder/userfiles/files/kifutudilinizefaxinoxem.pdfIn PDF document text
- https://hoangvan.vn/wp-content/uploads/files/molofikitowud.pdfIn PDF document text
- http://italiangreyhound.pl/img1/userfiles/file/goveberunu.pdfIn PDF document text
- http://festacreativita.org/userfiles/file/16762851795.pdfIn PDF document text
- http://www.rebranded.tv/wp-content/plugins/formcraft/file-upload/server/content/files/1614403b2f359e---lotenaxemikalozoxagevetob.pdfIn PDF document text
- http://sinners-party.de/media/file/26817890636.pdfIn PDF document text
- https://ghadir-eng.com/userfiles/files/zelabukekus.pdfIn PDF document text
- https://aporpeter.ro/userfiles/file/90420459576.pdfIn PDF document text
- http://besttailor.info/ckfinder/userfiles/files/33709977149.pdfIn PDF document text
- https://villatoscana-pi.it/userfiles/file/bexajoradunajigosofamo.pdfIn PDF document text
- http://happyhanool.com/ckupload/files/mebuporaxelifow.pdfIn PDF document text
- https://newsale.linyn.mobi/upload/ckeditor/pages/files/60032888255.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_off0000d5d8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD5D8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000edef.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDEF | 10828 bytes |
SHA-256: b94956ee6cd362b1f78a7669021aec3822716779d7fe44340cf7f8ea48a06d53 |
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font_02_sfnt_off000106b8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x106B8 | 18856 bytes |
SHA-256: aed4116825043963c1c29999fa81d961c6c6fb2ba8943991c9b0a3e40301d134 |
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