MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. It contains numerous embedded URLs, many of which point to disposable hosting and are part of a link farm, a common tactic for phishing or distributing further malware. The heuristic 'SE_LOLBIN_RUN_COMMAND' also suggests suspicious command-like sequences within the document text, potentially related to execution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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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LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMANDExtracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
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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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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=how+to+change+your+tablet+password PDF link annotation
- http://ateliergermain.club/sites/default/files/file/22844041461.pdfIn PDF document text
- http://dgxzz.com/uploadfile/file/vavanowikixabud.pdfIn PDF document text
- http://www.tivafa.hu/upload/file/69058156559.pdfIn PDF document text
- http://descanso.verareyes.com/ckfinder/userfiles/files/28593382567.pdfIn PDF document text
- http://giadinhmedia.com/uploads/files/pipaxofoxakuden.pdfIn PDF document text
- http://angelofthewinds.org/ckfinder/userfiles/files/2950289748.pdfIn PDF document text
- http://www.iuoelocal870.com/kaizen/ckfinder/userfiles/files/10620547523.pdfIn PDF document text
- http://jamalcar.com/userfiles/file/57884191847.pdfIn PDF document text
- http://szjglaw.com/uploadfile/file/2021090607212273499.pdfIn PDF document text
- http://gillsandgeckos.com/userfiles/file/28183538446.pdfIn PDF document text
- http://charmingcurls.se/upload/file/runufexipig.pdfIn PDF document text
- http://iberia-ex.com/images/blog/file/bumoboz.pdfIn PDF document text
- https://sapporopools.com/contents/files/57377349583.pdfIn macro / runtime command snippet
- http://vikingpaint.com/user_file/file/sobopapugogawewuboli.pdfIn macro / runtime command snippet
- http://irinaburmistrova.ru/files/zitokixidowubowibiku.pdfIn PDF document text
- https://hsse.cl/files/redorasod.pdfIn PDF document text
- https://ateliersmq.com/pevron/www/img/file/wanagiravidexogamodefa.pdfIn PDF document text
- http://stringladies.cz/userfiles/guxugeliwetakufudewilifu.pdfIn PDF document text
- http://studiomistretta.com/userfiles/files/mejotodunujamolaw.pdfIn PDF document text
- http://proleague.dk/userfiles/file/35060101234.pdfIn PDF document text
- http://ooexperience.be/assets/Image/files/76152640136.pdfIn PDF document text
- https://guptajimarriagebureau.com/userfiles/file/xetotebipalon.pdfIn PDF document text
- http://easytravel63.ru/ckfinder/userfiles/files/lenetuvoxij.pdfIn PDF document text
- http://iberia-ex.com/imIn macro / runtime command snippet
- 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_off0000c7b1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC7B1 | 17808 bytes |
SHA-256: 2eafa12476564864be6a03abf3c2a99c64f489fa096e25e14a63d8374bb2e9de |
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font_01_sfnt_off0000f5cc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5CC | 11132 bytes |
SHA-256: 3c4ab19e10a9ef428dfb98d607b022d696e9ba6f899477d55dc1f6acb0ad1706 |
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font_02_sfnt_off00010f60.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F60 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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