Analysis
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max time kernel
143s -
max time network
142s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
13-11-2020 15:35
Static task
static1
Behavioral task
behavioral1
Sample
be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe
Resource
win7v20201028
General
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Target
be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe
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Size
252KB
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MD5
c59e571eb35a179093de7813abea3701
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SHA1
68932d08d79e587684b9bab2c2bbd67e70b6b40d
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SHA256
be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c
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SHA512
5d29fd11f7dff221ceaca9949301407655a18a1a1d5ea74461d922107430d66754da0574cbc5b47f2ceaab0941bf6146be33726d8e7d64625ee9b6ed6d2e9281
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
Processes:
be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\AppData\\Roaming\\MSDCSC\\msdcsc.exe" be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe -
Disables RegEdit via registry modification
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Disables Task Manager via registry modification
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Executes dropped EXE 1 IoCs
Processes:
msdcsc.exepid process 1100 msdcsc.exe -
Processes:
resource yara_rule \Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe upx \Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe upx C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe upx C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe upx -
Deletes itself 1 IoCs
Processes:
notepad.exepid process 1228 notepad.exe -
Loads dropped DLL 2 IoCs
Processes:
be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exepid process 1056 be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe 1056 be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exemsdcsc.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\MSDCSC\\msdcsc.exe" be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe Set value (str) \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\MSDCSC\\msdcsc.exe" msdcsc.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious use of AdjustPrivilegeToken 46 IoCs
Processes:
be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exemsdcsc.exedescription pid process Token: SeIncreaseQuotaPrivilege 1056 be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe Token: SeSecurityPrivilege 1056 be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe Token: SeTakeOwnershipPrivilege 1056 be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe Token: SeLoadDriverPrivilege 1056 be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe Token: SeSystemProfilePrivilege 1056 be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe Token: SeSystemtimePrivilege 1056 be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe Token: SeProfSingleProcessPrivilege 1056 be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe Token: SeIncBasePriorityPrivilege 1056 be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe Token: SeCreatePagefilePrivilege 1056 be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe Token: SeBackupPrivilege 1056 be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe Token: SeRestorePrivilege 1056 be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe Token: SeShutdownPrivilege 1056 be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe Token: SeDebugPrivilege 1056 be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe Token: SeSystemEnvironmentPrivilege 1056 be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe Token: SeChangeNotifyPrivilege 1056 be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe Token: SeRemoteShutdownPrivilege 1056 be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe Token: SeUndockPrivilege 1056 be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe Token: SeManageVolumePrivilege 1056 be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe Token: SeImpersonatePrivilege 1056 be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe Token: SeCreateGlobalPrivilege 1056 be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe Token: 33 1056 be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe Token: 34 1056 be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe Token: 35 1056 be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe Token: SeIncreaseQuotaPrivilege 1100 msdcsc.exe Token: SeSecurityPrivilege 1100 msdcsc.exe Token: SeTakeOwnershipPrivilege 1100 msdcsc.exe Token: SeLoadDriverPrivilege 1100 msdcsc.exe Token: SeSystemProfilePrivilege 1100 msdcsc.exe Token: SeSystemtimePrivilege 1100 msdcsc.exe Token: SeProfSingleProcessPrivilege 1100 msdcsc.exe Token: SeIncBasePriorityPrivilege 1100 msdcsc.exe Token: SeCreatePagefilePrivilege 1100 msdcsc.exe Token: SeBackupPrivilege 1100 msdcsc.exe Token: SeRestorePrivilege 1100 msdcsc.exe Token: SeShutdownPrivilege 1100 msdcsc.exe Token: SeDebugPrivilege 1100 msdcsc.exe Token: SeSystemEnvironmentPrivilege 1100 msdcsc.exe Token: SeChangeNotifyPrivilege 1100 msdcsc.exe Token: SeRemoteShutdownPrivilege 1100 msdcsc.exe Token: SeUndockPrivilege 1100 msdcsc.exe Token: SeManageVolumePrivilege 1100 msdcsc.exe Token: SeImpersonatePrivilege 1100 msdcsc.exe Token: SeCreateGlobalPrivilege 1100 msdcsc.exe Token: 33 1100 msdcsc.exe Token: 34 1100 msdcsc.exe Token: 35 1100 msdcsc.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
msdcsc.exepid process 1100 msdcsc.exe -
Suspicious use of WriteProcessMemory 22 IoCs
Processes:
be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exedescription pid process target process PID 1056 wrote to memory of 1228 1056 be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe notepad.exe PID 1056 wrote to memory of 1228 1056 be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe notepad.exe PID 1056 wrote to memory of 1228 1056 be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe notepad.exe PID 1056 wrote to memory of 1228 1056 be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe notepad.exe PID 1056 wrote to memory of 1228 1056 be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe notepad.exe PID 1056 wrote to memory of 1228 1056 be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe notepad.exe PID 1056 wrote to memory of 1228 1056 be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe notepad.exe PID 1056 wrote to memory of 1228 1056 be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe notepad.exe PID 1056 wrote to memory of 1228 1056 be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe notepad.exe PID 1056 wrote to memory of 1228 1056 be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe notepad.exe PID 1056 wrote to memory of 1228 1056 be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe notepad.exe PID 1056 wrote to memory of 1228 1056 be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe notepad.exe PID 1056 wrote to memory of 1228 1056 be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe notepad.exe PID 1056 wrote to memory of 1228 1056 be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe notepad.exe PID 1056 wrote to memory of 1228 1056 be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe notepad.exe PID 1056 wrote to memory of 1228 1056 be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe notepad.exe PID 1056 wrote to memory of 1228 1056 be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe notepad.exe PID 1056 wrote to memory of 1228 1056 be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe notepad.exe PID 1056 wrote to memory of 1100 1056 be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe msdcsc.exe PID 1056 wrote to memory of 1100 1056 be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe msdcsc.exe PID 1056 wrote to memory of 1100 1056 be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe msdcsc.exe PID 1056 wrote to memory of 1100 1056 be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe msdcsc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe"C:\Users\Admin\AppData\Local\Temp\be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c.exe"1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\notepad.exenotepad2⤵
- Deletes itself
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C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe"C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- 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:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exeMD5
c59e571eb35a179093de7813abea3701
SHA168932d08d79e587684b9bab2c2bbd67e70b6b40d
SHA256be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c
SHA5125d29fd11f7dff221ceaca9949301407655a18a1a1d5ea74461d922107430d66754da0574cbc5b47f2ceaab0941bf6146be33726d8e7d64625ee9b6ed6d2e9281
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C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exeMD5
c59e571eb35a179093de7813abea3701
SHA168932d08d79e587684b9bab2c2bbd67e70b6b40d
SHA256be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c
SHA5125d29fd11f7dff221ceaca9949301407655a18a1a1d5ea74461d922107430d66754da0574cbc5b47f2ceaab0941bf6146be33726d8e7d64625ee9b6ed6d2e9281
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\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exeMD5
c59e571eb35a179093de7813abea3701
SHA168932d08d79e587684b9bab2c2bbd67e70b6b40d
SHA256be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c
SHA5125d29fd11f7dff221ceaca9949301407655a18a1a1d5ea74461d922107430d66754da0574cbc5b47f2ceaab0941bf6146be33726d8e7d64625ee9b6ed6d2e9281
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\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exeMD5
c59e571eb35a179093de7813abea3701
SHA168932d08d79e587684b9bab2c2bbd67e70b6b40d
SHA256be7348ac661712d9c6ff32f570af43a435fa88015c48b6a421f3f68d944e943c
SHA5125d29fd11f7dff221ceaca9949301407655a18a1a1d5ea74461d922107430d66754da0574cbc5b47f2ceaab0941bf6146be33726d8e7d64625ee9b6ed6d2e9281
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memory/1100-5-0x0000000000000000-mapping.dmp
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memory/1228-0-0x0000000000000000-mapping.dmp
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memory/1228-1-0x0000000000200000-0x0000000000201000-memory.dmpFilesize
4KB
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memory/1228-2-0x0000000000000000-mapping.dmp