Analysis
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max time kernel
171s -
max time network
178s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
23-11-2022 23:45
Behavioral task
behavioral1
Sample
6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exe
Resource
win10v2004-20220812-en
General
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Target
6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exe
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Size
812KB
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MD5
5872996a80069af442c88f5cd6bb9020
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SHA1
b49e31d0aefded8fb0bc18045f635c1aa495e037
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SHA256
6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649
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SHA512
bbdae59d4c84506697cd84997075ccb20fe3d34354bfb2253e6140de7ae078b1416e1751974b5749b22e1ccd9733219bf0cec83a608b8bbc67363e31950a6cf4
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SSDEEP
12288:daAchpWsuVTv7ItY8XljyypHP7cOLBev03hlULsmWZ++09ZcKDVsgd0:4AEENIq8XwyVPQclDq/+WnpsS0
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
Processes:
6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Windupdt\\winupdate.exe" 6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exe -
Executes dropped EXE 1 IoCs
Processes:
winupdate.exepid process 1948 winupdate.exe -
Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exewinupdate.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate 6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate winupdate.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation 6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exe -
Adds Run key to start application 2 TTPs 3 IoCs
Processes:
6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exewinupdate.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run 6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windupdt\\winupdate.exe" 6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run winupdate.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Checks processor information in registry 2 TTPs 8 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
winupdate.exe6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString winupdate.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier winupdate.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier winupdate.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier 6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier 6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 winupdate.exe -
Enumerates system info in registry 2 TTPs 2 IoCs
Processes:
6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exewinupdate.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier 6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier winupdate.exe -
Modifies registry class 1 IoCs
Processes:
6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ 6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
winupdate.exepid process 1948 winupdate.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
Processes:
6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exewinupdate.exedescription pid process Token: SeIncreaseQuotaPrivilege 3216 6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exe Token: SeSecurityPrivilege 3216 6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exe Token: SeTakeOwnershipPrivilege 3216 6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exe Token: SeLoadDriverPrivilege 3216 6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exe Token: SeSystemProfilePrivilege 3216 6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exe Token: SeSystemtimePrivilege 3216 6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exe Token: SeProfSingleProcessPrivilege 3216 6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exe Token: SeIncBasePriorityPrivilege 3216 6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exe Token: SeCreatePagefilePrivilege 3216 6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exe Token: SeBackupPrivilege 3216 6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exe Token: SeRestorePrivilege 3216 6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exe Token: SeShutdownPrivilege 3216 6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exe Token: SeDebugPrivilege 3216 6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exe Token: SeSystemEnvironmentPrivilege 3216 6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exe Token: SeChangeNotifyPrivilege 3216 6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exe Token: SeRemoteShutdownPrivilege 3216 6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exe Token: SeUndockPrivilege 3216 6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exe Token: SeManageVolumePrivilege 3216 6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exe Token: SeImpersonatePrivilege 3216 6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exe Token: SeCreateGlobalPrivilege 3216 6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exe Token: 33 3216 6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exe Token: 34 3216 6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exe Token: 35 3216 6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exe Token: 36 3216 6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exe Token: SeIncreaseQuotaPrivilege 1948 winupdate.exe Token: SeSecurityPrivilege 1948 winupdate.exe Token: SeTakeOwnershipPrivilege 1948 winupdate.exe Token: SeLoadDriverPrivilege 1948 winupdate.exe Token: SeSystemProfilePrivilege 1948 winupdate.exe Token: SeSystemtimePrivilege 1948 winupdate.exe Token: SeProfSingleProcessPrivilege 1948 winupdate.exe Token: SeIncBasePriorityPrivilege 1948 winupdate.exe Token: SeCreatePagefilePrivilege 1948 winupdate.exe Token: SeBackupPrivilege 1948 winupdate.exe Token: SeRestorePrivilege 1948 winupdate.exe Token: SeShutdownPrivilege 1948 winupdate.exe Token: SeDebugPrivilege 1948 winupdate.exe Token: SeSystemEnvironmentPrivilege 1948 winupdate.exe Token: SeChangeNotifyPrivilege 1948 winupdate.exe Token: SeRemoteShutdownPrivilege 1948 winupdate.exe Token: SeUndockPrivilege 1948 winupdate.exe Token: SeManageVolumePrivilege 1948 winupdate.exe Token: SeImpersonatePrivilege 1948 winupdate.exe Token: SeCreateGlobalPrivilege 1948 winupdate.exe Token: 33 1948 winupdate.exe Token: 34 1948 winupdate.exe Token: 35 1948 winupdate.exe Token: 36 1948 winupdate.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
winupdate.exepid process 1948 winupdate.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exedescription pid process target process PID 3216 wrote to memory of 1948 3216 6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exe winupdate.exe PID 3216 wrote to memory of 1948 3216 6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exe winupdate.exe PID 3216 wrote to memory of 1948 3216 6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exe winupdate.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exe"C:\Users\Admin\AppData\Local\Temp\6f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649.exe"1⤵
- Modifies WinLogon for persistence
- Checks BIOS information in registry
- Checks computer location settings
- Adds Run key to start application
- Checks processor information in registry
- Enumerates system info in registry
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windupdt\winupdate.exe"C:\Windupdt\winupdate.exe"2⤵
- Executes dropped EXE
- Checks BIOS information in registry
- Adds Run key to start application
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Windupdt\winupdate.exeFilesize
812KB
MD55872996a80069af442c88f5cd6bb9020
SHA1b49e31d0aefded8fb0bc18045f635c1aa495e037
SHA2566f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649
SHA512bbdae59d4c84506697cd84997075ccb20fe3d34354bfb2253e6140de7ae078b1416e1751974b5749b22e1ccd9733219bf0cec83a608b8bbc67363e31950a6cf4
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C:\Windupdt\winupdate.exeFilesize
812KB
MD55872996a80069af442c88f5cd6bb9020
SHA1b49e31d0aefded8fb0bc18045f635c1aa495e037
SHA2566f37c0ab7515a676422d021d0cbdb629988149763fa5899fbf742f7791ea8649
SHA512bbdae59d4c84506697cd84997075ccb20fe3d34354bfb2253e6140de7ae078b1416e1751974b5749b22e1ccd9733219bf0cec83a608b8bbc67363e31950a6cf4
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memory/1948-132-0x0000000000000000-mapping.dmp