Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
09/08/2026, 16:10
General
- Target 9a203a1f050818238d950b70465e679c6475cf974e7c823d188645ba6aec01ae.exe
- Size 738KB
- Sample260809-tmceys1fjf
- SHA256 9a203a1f050818238d950b70465e679c6475cf974e7c823d188645ba6aec01ae
Malware Config
Extracted
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djvu
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http://zexeq.com/test2/get.php
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extension
.ptrz
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offline_id
43WPLl8Cnh3dZoiWhf8tP8Q9CrMBVUL2dwHB2Rt1
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payload_url
http://colisumy.com/dl/build2.exe
http://zexeq.com/files/1/build3.exe
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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 21 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 5 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\9a203a1f050818238d950b70465e679c6475cf974e7c823d188645ba6aec01ae.exe"C:\Users\Admin\AppData\Local\Temp\9a203a1f050818238d950b70465e679c6475cf974e7c823d188645ba6aec01ae.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\9a203a1f050818238d950b70465e679c6475cf974e7c823d188645ba6aec01ae.exe"C:\Users\Admin\AppData\Local\Temp\9a203a1f050818238d950b70465e679c6475cf974e7c823d188645ba6aec01ae.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\cbc5adf2-b13a-4deb-a96f-03522376f5d0" /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\9a203a1f050818238d950b70465e679c6475cf974e7c823d188645ba6aec01ae.exe"C:\Users\Admin\AppData\Local\Temp\9a203a1f050818238d950b70465e679c6475cf974e7c823d188645ba6aec01ae.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\9a203a1f050818238d950b70465e679c6475cf974e7c823d188645ba6aec01ae.exe"C:\Users\Admin\AppData\Local\Temp\9a203a1f050818238d950b70465e679c6475cf974e7c823d188645ba6aec01ae.exe" --Admin IsNotAutoStart IsNotTask4⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
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-
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C:\Users\Admin\AppData\Local\cbc5adf2-b13a-4deb-a96f-03522376f5d0\9a203a1f050818238d950b70465e679c6475cf974e7c823d188645ba6aec01ae.exeC:\Users\Admin\AppData\Local\cbc5adf2-b13a-4deb-a96f-03522376f5d0\9a203a1f050818238d950b70465e679c6475cf974e7c823d188645ba6aec01ae.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\cbc5adf2-b13a-4deb-a96f-03522376f5d0\9a203a1f050818238d950b70465e679c6475cf974e7c823d188645ba6aec01ae.exeC:\Users\Admin\AppData\Local\cbc5adf2-b13a-4deb-a96f-03522376f5d0\9a203a1f050818238d950b70465e679c6475cf974e7c823d188645ba6aec01ae.exe2⤵
- 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
bowsakkdestx.txt
9a203a1f050818238d950b70465e679c6475cf974e7c823d188645ba6aec01ae.exe
memory/4136-42-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4136-39-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4396-48-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4396-23-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4396-25-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4396-64-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4396-35-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4396-36-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4396-63-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4396-62-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4396-61-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4396-59-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4396-44-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4396-58-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4396-51-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4680-2-0x0000000004A50000-0x0000000004B6B000-memory.dmp
memory/4680-1-0x0000000004980000-0x0000000004A21000-memory.dmp
memory/4932-3-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4932-4-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4932-5-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4932-6-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4932-20-0x0000000000400000-0x0000000000537000-memory.dmp