Analysis
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max time kernel
161s -
max time network
169s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
25-11-2022 07:20
Static task
static1
Behavioral task
behavioral1
Sample
a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe
Resource
win10v2004-20221111-en
General
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Target
a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe
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Size
1.1MB
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MD5
df3eb70752175bd0f8391f9524874fa4
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SHA1
0006c5e7d2681a7d8fd5e3bafc7be27bd6a9b5f9
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SHA256
a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e
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SHA512
2feac4e3451c5bf6661d4d9a47827e66ef4de9781649667af2895059f29076304f684b6624ac73190ff90bf959d033cd57e3d45749ee8e3486f1391c04bbcebc
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SSDEEP
24576:xf9I2Wjiv0j/yaMctr1SdWHJXLr1TO+qoDJd46:xFNWjiceCrkkpXP1fqWZ
Malware Config
Signatures
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Executes dropped EXE 2 IoCs
Processes:
mvchost.exemvchost.exepid process 1848 mvchost.exe 2776 mvchost.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
mvchost.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\CNS = "C:\\Users\\Admin\\AppData\\Local\\Microsoft\\mvchost.exe" mvchost.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 30 IoCs
Processes:
a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exemvchost.exepid process 1172 a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe 1172 a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe 1172 a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe 1848 mvchost.exe 1848 mvchost.exe 1172 a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe 1848 mvchost.exe 1172 a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe 1848 mvchost.exe 1172 a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe 1848 mvchost.exe 1172 a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe 1848 mvchost.exe 1172 a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe 1848 mvchost.exe 1172 a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe 1848 mvchost.exe 1172 a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe 1848 mvchost.exe 1172 a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe 1848 mvchost.exe 1172 a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe 1848 mvchost.exe 1172 a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe 1848 mvchost.exe 1172 a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe 1848 mvchost.exe 1172 a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe 1848 mvchost.exe 1172 a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe -
Suspicious use of SetThreadContext 2 IoCs
Processes:
a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exemvchost.exedescription pid process target process PID 1172 set thread context of 2880 1172 a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe PID 1848 set thread context of 2776 1848 mvchost.exe mvchost.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Modifies registry class 1 IoCs
Processes:
a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
mvchost.exedescription pid process Token: SeDebugPrivilege 2776 mvchost.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exemvchost.exepid process 1172 a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe 1848 mvchost.exe -
Suspicious use of WriteProcessMemory 31 IoCs
Processes:
a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exea378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exemvchost.exedescription pid process target process PID 1172 wrote to memory of 2880 1172 a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe PID 1172 wrote to memory of 2880 1172 a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe PID 1172 wrote to memory of 2880 1172 a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe PID 1172 wrote to memory of 2880 1172 a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe PID 1172 wrote to memory of 2880 1172 a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe PID 1172 wrote to memory of 2880 1172 a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe PID 1172 wrote to memory of 2880 1172 a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe PID 1172 wrote to memory of 2880 1172 a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe PID 1172 wrote to memory of 2880 1172 a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe PID 1172 wrote to memory of 2880 1172 a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe PID 1172 wrote to memory of 2880 1172 a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe PID 1172 wrote to memory of 2880 1172 a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe PID 1172 wrote to memory of 2880 1172 a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe PID 1172 wrote to memory of 2880 1172 a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe PID 2880 wrote to memory of 1848 2880 a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe mvchost.exe PID 2880 wrote to memory of 1848 2880 a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe mvchost.exe PID 2880 wrote to memory of 1848 2880 a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe mvchost.exe PID 1848 wrote to memory of 2776 1848 mvchost.exe mvchost.exe PID 1848 wrote to memory of 2776 1848 mvchost.exe mvchost.exe PID 1848 wrote to memory of 2776 1848 mvchost.exe mvchost.exe PID 1848 wrote to memory of 2776 1848 mvchost.exe mvchost.exe PID 1848 wrote to memory of 2776 1848 mvchost.exe mvchost.exe PID 1848 wrote to memory of 2776 1848 mvchost.exe mvchost.exe PID 1848 wrote to memory of 2776 1848 mvchost.exe mvchost.exe PID 1848 wrote to memory of 2776 1848 mvchost.exe mvchost.exe PID 1848 wrote to memory of 2776 1848 mvchost.exe mvchost.exe PID 1848 wrote to memory of 2776 1848 mvchost.exe mvchost.exe PID 1848 wrote to memory of 2776 1848 mvchost.exe mvchost.exe PID 1848 wrote to memory of 2776 1848 mvchost.exe mvchost.exe PID 1848 wrote to memory of 2776 1848 mvchost.exe mvchost.exe PID 1848 wrote to memory of 2776 1848 mvchost.exe mvchost.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe"C:\Users\Admin\AppData\Local\Temp\a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe"1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exeC:\Users\Admin\AppData\Local\Temp\a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe2⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Microsoft\mvchost.exe"C:\Users\Admin\AppData\Local\Microsoft\mvchost.exe"3⤵
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Microsoft\mvchost.exeC:\Users\Admin\AppData\Local\Microsoft\mvchost.exe4⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Microsoft\mvchost.exeFilesize
1.1MB
MD5df3eb70752175bd0f8391f9524874fa4
SHA10006c5e7d2681a7d8fd5e3bafc7be27bd6a9b5f9
SHA256a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e
SHA5122feac4e3451c5bf6661d4d9a47827e66ef4de9781649667af2895059f29076304f684b6624ac73190ff90bf959d033cd57e3d45749ee8e3486f1391c04bbcebc
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C:\Users\Admin\AppData\Local\Microsoft\mvchost.exeFilesize
1.1MB
MD5df3eb70752175bd0f8391f9524874fa4
SHA10006c5e7d2681a7d8fd5e3bafc7be27bd6a9b5f9
SHA256a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e
SHA5122feac4e3451c5bf6661d4d9a47827e66ef4de9781649667af2895059f29076304f684b6624ac73190ff90bf959d033cd57e3d45749ee8e3486f1391c04bbcebc
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C:\Users\Admin\AppData\Local\Microsoft\mvchost.exeFilesize
1.1MB
MD5df3eb70752175bd0f8391f9524874fa4
SHA10006c5e7d2681a7d8fd5e3bafc7be27bd6a9b5f9
SHA256a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e
SHA5122feac4e3451c5bf6661d4d9a47827e66ef4de9781649667af2895059f29076304f684b6624ac73190ff90bf959d033cd57e3d45749ee8e3486f1391c04bbcebc
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memory/1172-148-0x0000000000400000-0x00000000008B7000-memory.dmpFilesize
4.7MB
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memory/1172-133-0x0000000000400000-0x00000000008B7000-memory.dmpFilesize
4.7MB
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memory/1172-134-0x0000000000400000-0x00000000008B7000-memory.dmpFilesize
4.7MB
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memory/1172-132-0x0000000000400000-0x00000000008B7000-memory.dmpFilesize
4.7MB
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memory/1172-149-0x0000000000400000-0x00000000008B7000-memory.dmpFilesize
4.7MB
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memory/1848-169-0x0000000000400000-0x00000000008B7000-memory.dmpFilesize
4.7MB
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memory/1848-154-0x0000000000400000-0x00000000008B7000-memory.dmpFilesize
4.7MB
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memory/1848-150-0x0000000000000000-mapping.dmp
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memory/2776-155-0x0000000000000000-mapping.dmp
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memory/2880-137-0x0000000000400000-0x000000000042C000-memory.dmpFilesize
176KB
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memory/2880-147-0x0000000000400000-0x000000000042C000-memory.dmpFilesize
176KB
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memory/2880-146-0x0000000000400000-0x000000000042C000-memory.dmpFilesize
176KB
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memory/2880-144-0x0000000000400000-0x000000000042C000-memory.dmpFilesize
176KB
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memory/2880-143-0x0000000000400000-0x000000000042C000-memory.dmpFilesize
176KB
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memory/2880-142-0x0000000000400000-0x000000000042C000-memory.dmpFilesize
176KB
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memory/2880-140-0x0000000000400000-0x000000000042C000-memory.dmpFilesize
176KB
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memory/2880-138-0x0000000000400000-0x000000000042C000-memory.dmpFilesize
176KB
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memory/2880-136-0x0000000000400000-0x000000000042C000-memory.dmpFilesize
176KB
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memory/2880-135-0x0000000000000000-mapping.dmp