Analysis
- max time kernel
149s - max time network
147s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
09/08/2026, 15:12
General
- Target cfb961347c192bd6dfa4e8b86b9a6eb04fca7f29b51b577ffa1465e7a75c733d.exe
- Size 809KB
- Sample260809-slbatsttbz
- SHA256 cfb961347c192bd6dfa4e8b86b9a6eb04fca7f29b51b577ffa1465e7a75c733d
Malware Config
Extracted
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djvu
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http://zexeq.com/test2/get.php
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extension
.lomx
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offline_id
NrqpaQRhQqq5l2tBPp1QS34I3ME2IKsAlZ0A9pt1
- payload_url
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ransomnote
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Signatures
- Family: Djvu Ransomware
Ransomware which is a variant of the STOP family.
- Detected Djvu ransomware 25 IoCs
- Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 4 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 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 4 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Program crash 1 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 9 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 31 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\cfb961347c192bd6dfa4e8b86b9a6eb04fca7f29b51b577ffa1465e7a75c733d.exe"C:\Users\Admin\AppData\Local\Temp\cfb961347c192bd6dfa4e8b86b9a6eb04fca7f29b51b577ffa1465e7a75c733d.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\cfb961347c192bd6dfa4e8b86b9a6eb04fca7f29b51b577ffa1465e7a75c733d.exe"C:\Users\Admin\AppData\Local\Temp\cfb961347c192bd6dfa4e8b86b9a6eb04fca7f29b51b577ffa1465e7a75c733d.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\bac554f2-2aab-4629-8a3a-1676680c9719" /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\cfb961347c192bd6dfa4e8b86b9a6eb04fca7f29b51b577ffa1465e7a75c733d.exe"C:\Users\Admin\AppData\Local\Temp\cfb961347c192bd6dfa4e8b86b9a6eb04fca7f29b51b577ffa1465e7a75c733d.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\cfb961347c192bd6dfa4e8b86b9a6eb04fca7f29b51b577ffa1465e7a75c733d.exe"C:\Users\Admin\AppData\Local\Temp\cfb961347c192bd6dfa4e8b86b9a6eb04fca7f29b51b577ffa1465e7a75c733d.exe" --Admin IsNotAutoStart IsNotTask4⤵
- System Location Discovery: System Language Discovery
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1604 -s 5685⤵
- Program crash
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C:\Users\Admin\AppData\Local\bac554f2-2aab-4629-8a3a-1676680c9719\cfb961347c192bd6dfa4e8b86b9a6eb04fca7f29b51b577ffa1465e7a75c733d.exeC:\Users\Admin\AppData\Local\bac554f2-2aab-4629-8a3a-1676680c9719\cfb961347c192bd6dfa4e8b86b9a6eb04fca7f29b51b577ffa1465e7a75c733d.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\bac554f2-2aab-4629-8a3a-1676680c9719\cfb961347c192bd6dfa4e8b86b9a6eb04fca7f29b51b577ffa1465e7a75c733d.exeC:\Users\Admin\AppData\Local\bac554f2-2aab-4629-8a3a-1676680c9719\cfb961347c192bd6dfa4e8b86b9a6eb04fca7f29b51b577ffa1465e7a75c733d.exe2⤵
- Checks computer location settings
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\bac554f2-2aab-4629-8a3a-1676680c9719\cfb961347c192bd6dfa4e8b86b9a6eb04fca7f29b51b577ffa1465e7a75c733d.exe"C:\Users\Admin\AppData\Local\bac554f2-2aab-4629-8a3a-1676680c9719\cfb961347c192bd6dfa4e8b86b9a6eb04fca7f29b51b577ffa1465e7a75c733d.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\bac554f2-2aab-4629-8a3a-1676680c9719\cfb961347c192bd6dfa4e8b86b9a6eb04fca7f29b51b577ffa1465e7a75c733d.exe"C:\Users\Admin\AppData\Local\bac554f2-2aab-4629-8a3a-1676680c9719\cfb961347c192bd6dfa4e8b86b9a6eb04fca7f29b51b577ffa1465e7a75c733d.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1604 -ip 16041⤵
Network
MITRE ATT&CK Enterprise v16
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Replay Monitor
Loading Replay Monitor...
Downloads
70825F0EABF2526E540CA0F7C268D189
8B2B9A00839EED1DFDCCC3BFC2F5DF12
B46811C17859FFB409CF0E904A4AA8F8
70825F0EABF2526E540CA0F7C268D189
8B2B9A00839EED1DFDCCC3BFC2F5DF12
B46811C17859FFB409CF0E904A4AA8F8
cfb961347c192bd6dfa4e8b86b9a6eb04fca7f29b51b577ffa1465e7a75c733d.exe
bowsakkdestx.txt
memory/1604-20-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1604-22-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1604-19-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2184-1-0x00000000025B0000-0x000000000264F000-memory.dmp
memory/2184-2-0x0000000002650000-0x000000000276B000-memory.dmp
memory/3308-30-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3308-31-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3308-43-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3316-60-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3316-71-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3316-77-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3316-76-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3316-74-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3316-50-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3316-75-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3316-72-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3316-59-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3316-58-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3316-57-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3316-48-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3316-64-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3912-5-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3912-3-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3912-4-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3912-6-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3912-15-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4436-23-0x0000000000400000-0x000000000097C000-memory.dmp
memory/4436-17-0x0000000000400000-0x000000000097C000-memory.dmp