Analysis
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max time kernel
118s -
max time network
114s -
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 08:48
Behavioral task
behavioral1
Sample
c8c4fa472338d372697661942bbac360N.exe
Resource
win7-20240708-en
General
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Target
c8c4fa472338d372697661942bbac360N.exe
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Size
45KB
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MD5
c8c4fa472338d372697661942bbac360
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SHA1
b236b415bc66818739f5a0730eded9ff414fae02
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SHA256
52fd3a302b0381ff26184c0253080ea368c5d7d4b4920cf74f8bc08fe555651e
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SHA512
d94fe370e28c69302fbce5a56439551ce2f96c59c553b169a12c909b9929890055fb03257c020cae14d7592c756a0f1d89c15ecef646980a9502b55a9cb623f9
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SSDEEP
768:EhP0kDE9N5dCA8J7VHXdrIniQaBTT+QQ+r1n4K8+C9TtIuCjaqUODvJVQ2f:osWE9N5dFu53dsniQaB/xZ14n7zIF+qr
Malware Config
Signatures
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Processes:
resource yara_rule behavioral2/memory/4316-0-0x0000000000400000-0x000000000041D000-memory.dmp upx -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
winver.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ECBD8F1D = "C:\\Users\\Admin\\AppData\\Roaming\\ECBD8F1D\\bin.exe" winver.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 2416 4020 WerFault.exe winver.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:
c8c4fa472338d372697661942bbac360N.exewinver.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language c8c4fa472338d372697661942bbac360N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language winver.exe -
Modifies registry class 1 IoCs
Processes:
Explorer.EXEdescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ Explorer.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
winver.exepid process 4020 winver.exe 4020 winver.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
Processes:
Explorer.EXEdescription pid process Token: SeShutdownPrivilege 3452 Explorer.EXE Token: SeCreatePagefilePrivilege 3452 Explorer.EXE Token: SeShutdownPrivilege 3452 Explorer.EXE Token: SeCreatePagefilePrivilege 3452 Explorer.EXE Token: SeShutdownPrivilege 3452 Explorer.EXE Token: SeCreatePagefilePrivilege 3452 Explorer.EXE -
Suspicious use of FindShellTrayWindow 3 IoCs
Processes:
winver.exeExplorer.EXEpid process 4020 winver.exe 3452 Explorer.EXE 3452 Explorer.EXE -
Suspicious use of UnmapMainImage 1 IoCs
Processes:
Explorer.EXEpid process 3452 Explorer.EXE -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
c8c4fa472338d372697661942bbac360N.exewinver.exedescription pid process target process PID 4316 wrote to memory of 4020 4316 c8c4fa472338d372697661942bbac360N.exe winver.exe PID 4316 wrote to memory of 4020 4316 c8c4fa472338d372697661942bbac360N.exe winver.exe PID 4316 wrote to memory of 4020 4316 c8c4fa472338d372697661942bbac360N.exe winver.exe PID 4316 wrote to memory of 4020 4316 c8c4fa472338d372697661942bbac360N.exe winver.exe PID 4020 wrote to memory of 3452 4020 winver.exe Explorer.EXE PID 4020 wrote to memory of 2832 4020 winver.exe sihost.exe
Processes
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C:\Windows\system32\sihost.exesihost.exe1⤵PID:2832
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of UnmapMainImage
PID:3452 -
C:\Users\Admin\AppData\Local\Temp\c8c4fa472338d372697661942bbac360N.exe"C:\Users\Admin\AppData\Local\Temp\c8c4fa472338d372697661942bbac360N.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4316 -
C:\Windows\SysWOW64\winver.exewinver3⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4020 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4020 -s 3524⤵
- Program crash
PID:2416
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4020 -ip 40201⤵PID:5104