Analysis
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max time kernel
115s -
max time network
104s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
17-08-2024 13:26
Static task
static1
Behavioral task
behavioral1
Sample
8a73d26dc3f22b5c46533ed612c7b990N.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
8a73d26dc3f22b5c46533ed612c7b990N.exe
Resource
win10v2004-20240802-en
General
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Target
8a73d26dc3f22b5c46533ed612c7b990N.exe
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Size
237KB
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MD5
8a73d26dc3f22b5c46533ed612c7b990
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SHA1
811c2f0666e087cc92cedf8e1f058298a0503175
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SHA256
39e9cb7ea3d74938d9f1daeb24e3540e07e906bdf1280d57020e6401df6cc1b4
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SHA512
8d0cdca73c45c80ce852b088475ed7b01aa823a9d3116a325f732c1e52f333dade9523c41364ef9c94b4592758f1b1d9af0ae364eb55434bbbb9eaba3b53d2b8
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SSDEEP
6144:5A2P27yTAnKGw0hjFhSR/W1nyAJ9v0pMtRCpYQ:5ATuTAnKGwUAWVycQqgj
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 4760 3200 WerFault.exe winver.exe 2952 2036 WerFault.exe 8a73d26dc3f22b5c46533ed612c7b990N.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:
8a73d26dc3f22b5c46533ed612c7b990N.exewinver.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 8a73d26dc3f22b5c46533ed612c7b990N.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:
8a73d26dc3f22b5c46533ed612c7b990N.exepid process 2036 8a73d26dc3f22b5c46533ed612c7b990N.exe 2036 8a73d26dc3f22b5c46533ed612c7b990N.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes:
Explorer.EXEdescription pid process Token: SeShutdownPrivilege 3464 Explorer.EXE Token: SeCreatePagefilePrivilege 3464 Explorer.EXE Token: SeShutdownPrivilege 3464 Explorer.EXE Token: SeCreatePagefilePrivilege 3464 Explorer.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
winver.exe8a73d26dc3f22b5c46533ed612c7b990N.exepid process 3200 winver.exe 2036 8a73d26dc3f22b5c46533ed612c7b990N.exe -
Suspicious use of UnmapMainImage 1 IoCs
Processes:
Explorer.EXEpid process 3464 Explorer.EXE -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
8a73d26dc3f22b5c46533ed612c7b990N.exewinver.exedescription pid process target process PID 2036 wrote to memory of 3200 2036 8a73d26dc3f22b5c46533ed612c7b990N.exe winver.exe PID 2036 wrote to memory of 3200 2036 8a73d26dc3f22b5c46533ed612c7b990N.exe winver.exe PID 2036 wrote to memory of 3200 2036 8a73d26dc3f22b5c46533ed612c7b990N.exe winver.exe PID 2036 wrote to memory of 3200 2036 8a73d26dc3f22b5c46533ed612c7b990N.exe winver.exe PID 3200 wrote to memory of 3464 3200 winver.exe Explorer.EXE PID 2036 wrote to memory of 3464 2036 8a73d26dc3f22b5c46533ed612c7b990N.exe Explorer.EXE PID 2036 wrote to memory of 2644 2036 8a73d26dc3f22b5c46533ed612c7b990N.exe sihost.exe
Processes
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C:\Windows\system32\sihost.exesihost.exe1⤵PID:2644
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3464 -
C:\Users\Admin\AppData\Local\Temp\8a73d26dc3f22b5c46533ed612c7b990N.exe"C:\Users\Admin\AppData\Local\Temp\8a73d26dc3f22b5c46533ed612c7b990N.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2036 -
C:\Windows\SysWOW64\winver.exewinver3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:3200 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3200 -s 3004⤵
- Program crash
PID:4760 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2036 -s 8643⤵
- Program crash
PID:2952
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman1⤵
- Modifies data under HKEY_USERS
PID:3272
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 3200 -ip 32001⤵PID:2300
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2036 -ip 20361⤵PID:4400