Analysis
- max time kernel
148s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
09/08/2026, 15:27
General
- Target 347c3b434e770b38ce06819cad853f93cb139fb4304e40a78933d92f56749d12.exe
- Size 778KB
- Sample260809-sv96hsba98
- SHA256 347c3b434e770b38ce06819cad853f93cb139fb4304e40a78933d92f56749d12
Malware Config
Extracted
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djvu
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http://zexeq.com/test2/get.php
-
extension
.nbwr
-
offline_id
csCsb6cUvy0iMa6NgGCGH0hSfXQlGjZVEmFVkgt1
- payload_url
-
ransomnote
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Signatures
- Family: Djvu Ransomware
Ransomware which is a variant of the STOP family.
- Detected Djvu ransomware 12 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 2 IoCs
- Modifies file permissions 1 TTPs 1 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Looks up external IP address via web service 1 TTPs 4 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 3 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 7 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 6 IoCs
- Suspicious use of WriteProcessMemory 23 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\347c3b434e770b38ce06819cad853f93cb139fb4304e40a78933d92f56749d12.exe"C:\Users\Admin\AppData\Local\Temp\347c3b434e770b38ce06819cad853f93cb139fb4304e40a78933d92f56749d12.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\347c3b434e770b38ce06819cad853f93cb139fb4304e40a78933d92f56749d12.exe"C:\Users\Admin\AppData\Local\Temp\347c3b434e770b38ce06819cad853f93cb139fb4304e40a78933d92f56749d12.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\b1487bee-2485-4ca0-83df-58cb111ae0d0" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
- System Location Discovery: System Language Discovery
-
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C:\Users\Admin\AppData\Local\Temp\347c3b434e770b38ce06819cad853f93cb139fb4304e40a78933d92f56749d12.exe"C:\Users\Admin\AppData\Local\Temp\347c3b434e770b38ce06819cad853f93cb139fb4304e40a78933d92f56749d12.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\347c3b434e770b38ce06819cad853f93cb139fb4304e40a78933d92f56749d12.exe"C:\Users\Admin\AppData\Local\Temp\347c3b434e770b38ce06819cad853f93cb139fb4304e40a78933d92f56749d12.exe" --Admin IsNotAutoStart IsNotTask4⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
-
-
-
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C:\Users\Admin\AppData\Local\b1487bee-2485-4ca0-83df-58cb111ae0d0\347c3b434e770b38ce06819cad853f93cb139fb4304e40a78933d92f56749d12.exeC:\Users\Admin\AppData\Local\b1487bee-2485-4ca0-83df-58cb111ae0d0\347c3b434e770b38ce06819cad853f93cb139fb4304e40a78933d92f56749d12.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\b1487bee-2485-4ca0-83df-58cb111ae0d0\347c3b434e770b38ce06819cad853f93cb139fb4304e40a78933d92f56749d12.exeC:\Users\Admin\AppData\Local\b1487bee-2485-4ca0-83df-58cb111ae0d0\347c3b434e770b38ce06819cad853f93cb139fb4304e40a78933d92f56749d12.exe2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
-
Network
MITRE ATT&CK Enterprise v16
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Replay Monitor
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Downloads
70825F0EABF2526E540CA0F7C268D189
8B2B9A00839EED1DFDCCC3BFC2F5DF12
B46811C17859FFB409CF0E904A4AA8F8
70825F0EABF2526E540CA0F7C268D189
8B2B9A00839EED1DFDCCC3BFC2F5DF12
B46811C17859FFB409CF0E904A4AA8F8
347c3b434e770b38ce06819cad853f93cb139fb4304e40a78933d92f56749d12.exe
memory/2044-20-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2044-3-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2044-5-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2044-4-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2044-6-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2260-1-0x0000000002810000-0x00000000028A8000-memory.dmp
memory/2260-2-0x00000000029C0000-0x0000000002ADB000-memory.dmp
memory/3568-31-0x0000000000400000-0x0000000000C1D000-memory.dmp
memory/3568-46-0x0000000000400000-0x0000000000C1D000-memory.dmp
memory/3804-30-0x0000000000400000-0x0000000000C1D000-memory.dmp
memory/3804-24-0x0000000000400000-0x0000000000C1D000-memory.dmp
memory/4468-26-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4468-27-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4468-29-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4468-43-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4844-34-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4844-44-0x0000000000400000-0x0000000000537000-memory.dmp