Analysis
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max time kernel
147s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
30-01-2023 04:29
Static task
static1
Behavioral task
behavioral1
Sample
c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe
Resource
win10v2004-20220812-en
General
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Target
c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe
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Size
982KB
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MD5
8d4ca9867e0f2f59057a0a5ab23442de
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SHA1
74aaa823e441bcd0e1075652bce2c234f702f8cf
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SHA256
c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be
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SHA512
40c0650470360868cac3624cabbfa7ed7ccbb0954e5f80866825aa87d9a61aca5c6af0d8d2db8617fe1f2265938beb7b6dbf268774de95d5dd0544f484cfe5ba
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SSDEEP
24576:wvh/9klHiSFnRdP3QYSel9Z+m8a6rsYShuOAq:gh87j4ax6ghuw
Malware Config
Signatures
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ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
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Processes:
mstwain32.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" mstwain32.exe -
ModiLoader Second Stage 10 IoCs
Processes:
resource yara_rule behavioral2/memory/4764-135-0x0000000000000000-mapping.dmp modiloader_stage2 behavioral2/memory/4764-136-0x0000000000400000-0x0000000000444000-memory.dmp modiloader_stage2 behavioral2/memory/4764-137-0x0000000000400000-0x0000000000444000-memory.dmp modiloader_stage2 behavioral2/memory/4764-139-0x0000000000400000-0x0000000000444000-memory.dmp modiloader_stage2 behavioral2/memory/4764-140-0x0000000000400000-0x0000000000444000-memory.dmp modiloader_stage2 behavioral2/memory/4764-144-0x0000000000400000-0x0000000000444000-memory.dmp modiloader_stage2 behavioral2/memory/2032-149-0x0000000000000000-mapping.dmp modiloader_stage2 behavioral2/memory/2032-154-0x0000000000400000-0x0000000000444000-memory.dmp modiloader_stage2 behavioral2/memory/2032-157-0x0000000000400000-0x0000000000444000-memory.dmp modiloader_stage2 behavioral2/memory/2032-160-0x0000000000400000-0x0000000000444000-memory.dmp modiloader_stage2 -
Executes dropped EXE 2 IoCs
Processes:
mstwain32.exemstwain32.exepid process 1984 mstwain32.exe 2032 mstwain32.exe -
Checks BIOS information in registry 2 TTPs 4 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exemstwain32.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate mstwain32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion mstwain32.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe -
Loads dropped DLL 2 IoCs
Processes:
mstwain32.exepid process 2032 mstwain32.exe 2032 mstwain32.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
mstwain32.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ mstwain32.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mstwain32 = "C:\\Windows\\mstwain32.exe" mstwain32.exe -
Processes:
c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exemstwain32.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA mstwain32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" mstwain32.exe -
Suspicious use of SetThreadContext 2 IoCs
Processes:
c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exemstwain32.exedescription pid process target process PID 1048 set thread context of 4764 1048 c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe PID 1984 set thread context of 2032 1984 mstwain32.exe mstwain32.exe -
Drops file in Windows directory 3 IoCs
Processes:
c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exemstwain32.exedescription ioc process File created C:\Windows\mstwain32.exe c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe File opened for modification C:\Windows\mstwain32.exe c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe File created C:\Windows\ntdtcstp.dll mstwain32.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Enumerates system info in registry 2 TTPs 2 IoCs
Processes:
c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exemstwain32.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier mstwain32.exe -
Modifies registry class 4 IoCs
Processes:
mstwain32.exec9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\lf1186604961l.ixw mstwain32.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\lf1186604961l.ixw\ = f6440b00000000009ca3045187f3e540 mstwain32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\lf1186604961l.ixw c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\lf1186604961l.ixw\ = dee356aadd803d5d8e29125ad22c63bb c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe -
Suspicious use of AdjustPrivilegeToken 5 IoCs
Processes:
c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exevssvc.exemstwain32.exedescription pid process Token: SeDebugPrivilege 4764 c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe Token: SeBackupPrivilege 4392 vssvc.exe Token: SeRestorePrivilege 4392 vssvc.exe Token: SeAuditPrivilege 4392 vssvc.exe Token: SeDebugPrivilege 2032 mstwain32.exe -
Suspicious use of SetWindowsHookEx 5 IoCs
Processes:
c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exemstwain32.exemstwain32.exepid process 1048 c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe 1048 c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe 1984 mstwain32.exe 1984 mstwain32.exe 2032 mstwain32.exe -
Suspicious use of WriteProcessMemory 29 IoCs
Processes:
c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exec9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exemstwain32.exedescription pid process target process PID 1048 wrote to memory of 4764 1048 c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe PID 1048 wrote to memory of 4764 1048 c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe PID 1048 wrote to memory of 4764 1048 c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe PID 1048 wrote to memory of 4764 1048 c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe PID 1048 wrote to memory of 4764 1048 c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe PID 1048 wrote to memory of 4764 1048 c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe PID 1048 wrote to memory of 4764 1048 c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe PID 1048 wrote to memory of 4764 1048 c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe PID 1048 wrote to memory of 4764 1048 c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe PID 1048 wrote to memory of 4764 1048 c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe PID 1048 wrote to memory of 4764 1048 c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe PID 1048 wrote to memory of 4764 1048 c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe PID 1048 wrote to memory of 4764 1048 c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe PID 4764 wrote to memory of 1984 4764 c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe mstwain32.exe PID 4764 wrote to memory of 1984 4764 c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe mstwain32.exe PID 4764 wrote to memory of 1984 4764 c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe mstwain32.exe PID 1984 wrote to memory of 2032 1984 mstwain32.exe mstwain32.exe PID 1984 wrote to memory of 2032 1984 mstwain32.exe mstwain32.exe PID 1984 wrote to memory of 2032 1984 mstwain32.exe mstwain32.exe PID 1984 wrote to memory of 2032 1984 mstwain32.exe mstwain32.exe PID 1984 wrote to memory of 2032 1984 mstwain32.exe mstwain32.exe PID 1984 wrote to memory of 2032 1984 mstwain32.exe mstwain32.exe PID 1984 wrote to memory of 2032 1984 mstwain32.exe mstwain32.exe PID 1984 wrote to memory of 2032 1984 mstwain32.exe mstwain32.exe PID 1984 wrote to memory of 2032 1984 mstwain32.exe mstwain32.exe PID 1984 wrote to memory of 2032 1984 mstwain32.exe mstwain32.exe PID 1984 wrote to memory of 2032 1984 mstwain32.exe mstwain32.exe PID 1984 wrote to memory of 2032 1984 mstwain32.exe mstwain32.exe PID 1984 wrote to memory of 2032 1984 mstwain32.exe mstwain32.exe -
System policy modification 1 TTPs 1 IoCs
Processes:
mstwain32.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" mstwain32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe"C:\Users\Admin\AppData\Local\Temp\c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe"1⤵
- Checks BIOS information in registry
- Suspicious use of SetThreadContext
- Enumerates system info in registry
- Modifies registry class
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1048 -
C:\Users\Admin\AppData\Local\Temp\c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exeC:\Users\Admin\AppData\Local\Temp\c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be.exe2⤵
- Checks computer location settings
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4764 -
C:\Windows\mstwain32.exe"C:\Windows\mstwain32.exe"3⤵
- Executes dropped EXE
- Checks BIOS information in registry
- Suspicious use of SetThreadContext
- Enumerates system info in registry
- Modifies registry class
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1984 -
C:\Windows\mstwain32.exeC:\Windows\mstwain32.exe4⤵
- UAC bypass
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- System policy modification
PID:2032
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4392
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-2629973501-4017243118-3254762364-1000\c0528c2346cb928a9052304ef3ab8fd4_e32e1c79-b88e-4709-94fb-81034ca3398e
Filesize2KB
MD58882037a0674a329b5ab8c870e58c422
SHA1fa2b896ce7908548eb54f6897a57dfcc9a333a49
SHA256bf58499bf43bec8d41f04779dac5618a081455a657667c157de019657224fead
SHA512aae711e67cab35a320c533b2b939b1c171f9219b4813292f7ce0a64af785679ddc23dbd61a3d31876558fa19c4e88d3df845242c2210c226fb5d9d3daece6891
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Filesize
982KB
MD58d4ca9867e0f2f59057a0a5ab23442de
SHA174aaa823e441bcd0e1075652bce2c234f702f8cf
SHA256c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be
SHA51240c0650470360868cac3624cabbfa7ed7ccbb0954e5f80866825aa87d9a61aca5c6af0d8d2db8617fe1f2265938beb7b6dbf268774de95d5dd0544f484cfe5ba
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Filesize
982KB
MD58d4ca9867e0f2f59057a0a5ab23442de
SHA174aaa823e441bcd0e1075652bce2c234f702f8cf
SHA256c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be
SHA51240c0650470360868cac3624cabbfa7ed7ccbb0954e5f80866825aa87d9a61aca5c6af0d8d2db8617fe1f2265938beb7b6dbf268774de95d5dd0544f484cfe5ba
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Filesize
982KB
MD58d4ca9867e0f2f59057a0a5ab23442de
SHA174aaa823e441bcd0e1075652bce2c234f702f8cf
SHA256c9bfacf4a3cef8e1cc65b1b66d2b94fbf3a54cce4e3a65807df877a274ed75be
SHA51240c0650470360868cac3624cabbfa7ed7ccbb0954e5f80866825aa87d9a61aca5c6af0d8d2db8617fe1f2265938beb7b6dbf268774de95d5dd0544f484cfe5ba
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Filesize
11KB
MD5196221b916e29ff0eec2efcd33c52eac
SHA116f8665beb6fe2cf954153250c39ae90d5cbdaaa
SHA2562f88a767f47fff8fa5f97b59930c175f82fc0f176dee0bfc920057bebfc99211
SHA5128ce80e47f4b7426db7b1079c48088e11a75f613ec25cc99efe50b8d32db930d2fae5c859342b7ec481206e5ada52ee2b05a2b8c6ec38917dd3127bdce1843a12
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Filesize
11KB
MD5196221b916e29ff0eec2efcd33c52eac
SHA116f8665beb6fe2cf954153250c39ae90d5cbdaaa
SHA2562f88a767f47fff8fa5f97b59930c175f82fc0f176dee0bfc920057bebfc99211
SHA5128ce80e47f4b7426db7b1079c48088e11a75f613ec25cc99efe50b8d32db930d2fae5c859342b7ec481206e5ada52ee2b05a2b8c6ec38917dd3127bdce1843a12