Analysis
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max time kernel
118s -
max time network
108s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
25-08-2024 00:48
Static task
static1
Behavioral task
behavioral1
Sample
73a6b0a3fe8b73231c134b77a3e9b560N.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
73a6b0a3fe8b73231c134b77a3e9b560N.exe
Resource
win10v2004-20240802-en
General
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Target
73a6b0a3fe8b73231c134b77a3e9b560N.exe
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Size
225KB
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MD5
73a6b0a3fe8b73231c134b77a3e9b560
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SHA1
4aac3a4182098c4ab0f270acf7f6ef9be91d2eb7
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SHA256
44e32710a1fda553cf9aa12542d48e4aee813b2fa1f88d0f09fcd53ee18fdd4c
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SHA512
0641b2e5c6c5c768b08ddbb77e3c2fdffff02994298764af8b4b33b945a72eb35629d2974501e963d2233c35954456b5ec2c04b85d0ef15d66808cedd70cfe1d
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SSDEEP
6144:aA2P27yTAnKGw0hjFhSR/W11yAJ9v0pMtRCpYM:aATuTAnKGwUAW3ycQqgf
Malware Config
Signatures
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 2 IoCs
Processes:
WerFault.exeWerFault.exepid pid_target process target process 3576 3452 WerFault.exe winver.exe 3896 4168 WerFault.exe 73a6b0a3fe8b73231c134b77a3e9b560N.exe -
System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
73a6b0a3fe8b73231c134b77a3e9b560N.exewinver.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 73a6b0a3fe8b73231c134b77a3e9b560N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language winver.exe -
Modifies data under HKEY_USERS 1 IoCs
Processes:
svchost.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@%SystemRoot%\system32\hnetcfgclient.dll,-201 = "HNetCfg Client" svchost.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
73a6b0a3fe8b73231c134b77a3e9b560N.exepid process 4168 73a6b0a3fe8b73231c134b77a3e9b560N.exe 4168 73a6b0a3fe8b73231c134b77a3e9b560N.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes:
Explorer.EXEdescription pid process Token: SeShutdownPrivilege 3512 Explorer.EXE Token: SeCreatePagefilePrivilege 3512 Explorer.EXE Token: SeShutdownPrivilege 3512 Explorer.EXE Token: SeCreatePagefilePrivilege 3512 Explorer.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
winver.exe73a6b0a3fe8b73231c134b77a3e9b560N.exepid process 3452 winver.exe 4168 73a6b0a3fe8b73231c134b77a3e9b560N.exe -
Suspicious use of UnmapMainImage 1 IoCs
Processes:
Explorer.EXEpid process 3512 Explorer.EXE -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
73a6b0a3fe8b73231c134b77a3e9b560N.exewinver.exedescription pid process target process PID 4168 wrote to memory of 3452 4168 73a6b0a3fe8b73231c134b77a3e9b560N.exe winver.exe PID 4168 wrote to memory of 3452 4168 73a6b0a3fe8b73231c134b77a3e9b560N.exe winver.exe PID 4168 wrote to memory of 3452 4168 73a6b0a3fe8b73231c134b77a3e9b560N.exe winver.exe PID 4168 wrote to memory of 3452 4168 73a6b0a3fe8b73231c134b77a3e9b560N.exe winver.exe PID 3452 wrote to memory of 3512 3452 winver.exe Explorer.EXE PID 4168 wrote to memory of 3512 4168 73a6b0a3fe8b73231c134b77a3e9b560N.exe Explorer.EXE PID 4168 wrote to memory of 2912 4168 73a6b0a3fe8b73231c134b77a3e9b560N.exe sihost.exe
Processes
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C:\Windows\system32\sihost.exesihost.exe1⤵PID:2912
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3512 -
C:\Users\Admin\AppData\Local\Temp\73a6b0a3fe8b73231c134b77a3e9b560N.exe"C:\Users\Admin\AppData\Local\Temp\73a6b0a3fe8b73231c134b77a3e9b560N.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4168 -
C:\Windows\SysWOW64\winver.exewinver3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:3452 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3452 -s 3004⤵
- Program crash
PID:3576 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4168 -s 7803⤵
- Program crash
PID:3896
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman1⤵
- Modifies data under HKEY_USERS
PID:2552
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3452 -ip 34521⤵PID:3620
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 4168 -ip 41681⤵PID:3112