Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
28/08/2026, 16:29
General
- Target f18441f36ad1de8768368c59189c08f31a30c4e00393bb27eabea06730ee8d35.exe
- Size 412KB
- Sample260828-tzmrfscl21
- SHA256 f18441f36ad1de8768368c59189c08f31a30c4e00393bb27eabea06730ee8d35
Malware Config
Signatures
- Adds policy Run key to start application 2 TTPs 2 IoCs
- Creates a file in the Startup directory 1 TTPs 2 IoCs
A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.
- Deletes itself 1 IoCs
- Executes dropped EXE 2 IoCs
- Adds Run key to start application 2 TTPs 4 IoCs
- Drops file in Windows directory 2 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Modifies data under HKEY_USERS 26 IoCs
- Modifies registry class 1 IoCs
- Suspicious behavior: EnumeratesProcesses 8 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 17 IoCs
- Suspicious use of AdjustPrivilegeToken 15 IoCs
- Suspicious use of FindShellTrayWindow 5 IoCs
- Suspicious use of SendNotifyMessage 3 IoCs
- Suspicious use of UnmapMainImage 2 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\f18441f36ad1de8768368c59189c08f31a30c4e00393bb27eabea06730ee8d35.exe"C:\Users\Admin\AppData\Local\Temp\f18441f36ad1de8768368c59189c08f31a30c4e00393bb27eabea06730ee8d35.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\svchost.exeC:\Windows\SysWOW64\svchost.exe -k netsvcs2⤵
- Adds policy Run key to start application
- Creates a file in the Startup directory
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\dllcache\nslookup.exe"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\dllcache\nslookup.exe" "C:\Users\Admin\AppData\Local\Temp\f18441f36ad1de8768368c59189c08f31a30c4e00393bb27eabea06730ee8d35.exe"3⤵
- Deletes itself
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\svchost.exeC:\Windows\SysWOW64\svchost.exe -k netsvcs4⤵
- Adds policy Run key to start application
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
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C:\Windows\system32\efsui.exeefsui.exe /efs /keybackup1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\dllcache\nslookup.exe"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\dllcache\nslookup.exe"1⤵
- Executes dropped EXE
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
nslookup.lnk
nslookup.exe
nslookup.lnk
memory/740-102-0x00000000003C0000-0x000000000042C000-memory.dmp
memory/1104-13-0x0000000000510000-0x000000000058B000-memory.dmp
memory/1104-8-0x0000000000510000-0x000000000058B000-memory.dmp
memory/1104-10-0x0000000000430000-0x0000000000431000-memory.dmp
memory/1104-9-0x0000000000510000-0x000000000051E000-memory.dmp
memory/1104-4-0x0000000000510000-0x000000000058B000-memory.dmp
memory/1104-5-0x0000000000510000-0x000000000058B000-memory.dmp
memory/1104-36-0x0000000000510000-0x000000000058B000-memory.dmp
memory/1104-3-0x0000000000510000-0x000000000058B000-memory.dmp
memory/1104-1-0x0000000000510000-0x000000000058B000-memory.dmp
memory/1884-43-0x00000000003FD000-0x00000000003FE000-memory.dmp
memory/1884-52-0x00000000003C0000-0x000000000042C000-memory.dmp
memory/3056-599-0x00000108CB550000-0x00000108CB566000-memory.dmp
memory/4360-46-0x0000000000510000-0x000000000058B000-memory.dmp
memory/4360-65-0x0000000000510000-0x000000000058B000-memory.dmp
memory/4360-54-0x0000000000DB0000-0x0000000000DB1000-memory.dmp
memory/4360-57-0x0000000000510000-0x000000000058B000-memory.dmp
memory/4360-688-0x0000000000510000-0x000000000051E000-memory.dmp
memory/4360-48-0x0000000000510000-0x000000000058B000-memory.dmp
memory/4360-71-0x0000000000510000-0x000000000058B000-memory.dmp
memory/4360-70-0x0000000000510000-0x000000000058B000-memory.dmp
memory/4360-68-0x0000000000510000-0x000000000058B000-memory.dmp
memory/4360-53-0x0000000000510000-0x000000000058B000-memory.dmp
memory/4360-63-0x0000000000510000-0x000000000058B000-memory.dmp
memory/4360-60-0x0000000000510000-0x000000000058B000-memory.dmp
memory/4360-51-0x0000000000510000-0x000000000058B000-memory.dmp
memory/4360-101-0x0000000000510000-0x000000000058B000-memory.dmp
memory/4360-47-0x0000000000510000-0x000000000058B000-memory.dmp
memory/4360-604-0x0000000000510000-0x000000000058B000-memory.dmp
memory/4360-657-0x0000000000510000-0x000000000058B000-memory.dmp
memory/5084-0-0x0000000000CCD000-0x0000000000CCE000-memory.dmp