Analysis
- max time kernel
149s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
09/08/2026, 13:51
General
- Target d4b9f4354252a9c203a211d8d600113f9d236ecca6234f43b5aa02350b5b24cc.exe
- Size 793KB
- Sample260809-q5vgpsyfjf
- SHA256 d4b9f4354252a9c203a211d8d600113f9d236ecca6234f43b5aa02350b5b24cc
Malware Config
Extracted
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djvu
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http://habrafa.com/test2/get.php
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extension
.lkfr
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offline_id
OxV6DGl22io8sqMOW1zCCOlzPiv4f1Vqzw7Y8zt1
- payload_url
-
ransomnote
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Signatures
- Family: Djvu Ransomware
Ransomware which is a variant of the STOP family.
- Detected Djvu ransomware 23 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 6 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\d4b9f4354252a9c203a211d8d600113f9d236ecca6234f43b5aa02350b5b24cc.exe"C:\Users\Admin\AppData\Local\Temp\d4b9f4354252a9c203a211d8d600113f9d236ecca6234f43b5aa02350b5b24cc.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\d4b9f4354252a9c203a211d8d600113f9d236ecca6234f43b5aa02350b5b24cc.exe"C:\Users\Admin\AppData\Local\Temp\d4b9f4354252a9c203a211d8d600113f9d236ecca6234f43b5aa02350b5b24cc.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\a150b24d-f114-4340-a8dc-ed1f2045d6e3" /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\d4b9f4354252a9c203a211d8d600113f9d236ecca6234f43b5aa02350b5b24cc.exe"C:\Users\Admin\AppData\Local\Temp\d4b9f4354252a9c203a211d8d600113f9d236ecca6234f43b5aa02350b5b24cc.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\d4b9f4354252a9c203a211d8d600113f9d236ecca6234f43b5aa02350b5b24cc.exe"C:\Users\Admin\AppData\Local\Temp\d4b9f4354252a9c203a211d8d600113f9d236ecca6234f43b5aa02350b5b24cc.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 6020 -s 5685⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 6020 -ip 60201⤵
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C:\Users\Admin\AppData\Local\a150b24d-f114-4340-a8dc-ed1f2045d6e3\d4b9f4354252a9c203a211d8d600113f9d236ecca6234f43b5aa02350b5b24cc.exeC:\Users\Admin\AppData\Local\a150b24d-f114-4340-a8dc-ed1f2045d6e3\d4b9f4354252a9c203a211d8d600113f9d236ecca6234f43b5aa02350b5b24cc.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\a150b24d-f114-4340-a8dc-ed1f2045d6e3\d4b9f4354252a9c203a211d8d600113f9d236ecca6234f43b5aa02350b5b24cc.exeC:\Users\Admin\AppData\Local\a150b24d-f114-4340-a8dc-ed1f2045d6e3\d4b9f4354252a9c203a211d8d600113f9d236ecca6234f43b5aa02350b5b24cc.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\a150b24d-f114-4340-a8dc-ed1f2045d6e3\d4b9f4354252a9c203a211d8d600113f9d236ecca6234f43b5aa02350b5b24cc.exe"C:\Users\Admin\AppData\Local\a150b24d-f114-4340-a8dc-ed1f2045d6e3\d4b9f4354252a9c203a211d8d600113f9d236ecca6234f43b5aa02350b5b24cc.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\a150b24d-f114-4340-a8dc-ed1f2045d6e3\d4b9f4354252a9c203a211d8d600113f9d236ecca6234f43b5aa02350b5b24cc.exe"C:\Users\Admin\AppData\Local\a150b24d-f114-4340-a8dc-ed1f2045d6e3\d4b9f4354252a9c203a211d8d600113f9d236ecca6234f43b5aa02350b5b24cc.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
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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
d4b9f4354252a9c203a211d8d600113f9d236ecca6234f43b5aa02350b5b24cc.exe
memory/1472-2-0x0000000002220000-0x000000000233B000-memory.dmp
memory/1472-1-0x0000000002180000-0x0000000002214000-memory.dmp
memory/2044-28-0x0000000000400000-0x00000000004D6000-memory.dmp
memory/2044-34-0x0000000000400000-0x00000000004D6000-memory.dmp
memory/3684-44-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3684-53-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3684-40-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4168-37-0x0000000000400000-0x00000000004D6000-memory.dmp
memory/4168-41-0x0000000000400000-0x00000000004D6000-memory.dmp
memory/4868-61-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4868-66-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4868-74-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4868-73-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4868-71-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4868-72-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4868-69-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4868-59-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4868-67-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4868-64-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4868-65-0x0000000000400000-0x0000000000537000-memory.dmp
memory/6020-30-0x0000000000400000-0x0000000000537000-memory.dmp
memory/6020-31-0x0000000000400000-0x0000000000537000-memory.dmp
memory/6020-33-0x0000000000400000-0x0000000000537000-memory.dmp
memory/6080-3-0x0000000000400000-0x0000000000537000-memory.dmp
memory/6080-4-0x0000000000400000-0x0000000000537000-memory.dmp
memory/6080-5-0x0000000000400000-0x0000000000537000-memory.dmp
memory/6080-6-0x0000000000400000-0x0000000000537000-memory.dmp
memory/6080-26-0x0000000000400000-0x0000000000537000-memory.dmp