Analysis
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max time kernel
150s -
max time network
149s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
11-11-2020 11:41
Static task
static1
Behavioral task
behavioral1
Sample
22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe
Resource
win10v20201028
General
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Target
22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe
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Size
349KB
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MD5
61c6858c5ecd6f8c83bc8d318d9f9c5f
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SHA1
4599c48f5a2057c7f07327e14de76f878a6170f4
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SHA256
22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9
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SHA512
69b386ff6647d80beb1e6d3976819fd3bf9f07a9155dbb2895b5d2cceb7b9445df438eeb9723cfe13faccf97d04e6ecbd87209c26dc7b6413d5ad18ce87e90b0
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
Processes:
22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\AppData\\Local\\Temp\\windows\\msdcsc.exe" 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe -
Executes dropped EXE 1 IoCs
Processes:
msdcsc.exepid process 3824 msdcsc.exe -
Processes:
resource yara_rule C:\Users\Admin\AppData\Local\Temp\windows\msdcsc.exe upx C:\Users\Admin\AppData\Local\Temp\windows\msdcsc.exe upx -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Control Panel\International\Geo\Nation 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe -
Deletes itself 1 IoCs
Processes:
notepad.exepid process 1852 notepad.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exemsdcsc.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\windows\\msdcsc.exe" 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Set value (str) \REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\windows\\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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Modifies registry class 1 IoCs
Processes:
22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
Processes:
22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exemsdcsc.exedescription pid process Token: SeIncreaseQuotaPrivilege 3976 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Token: SeSecurityPrivilege 3976 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Token: SeTakeOwnershipPrivilege 3976 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Token: SeLoadDriverPrivilege 3976 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Token: SeSystemProfilePrivilege 3976 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Token: SeSystemtimePrivilege 3976 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Token: SeProfSingleProcessPrivilege 3976 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Token: SeIncBasePriorityPrivilege 3976 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Token: SeCreatePagefilePrivilege 3976 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Token: SeBackupPrivilege 3976 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Token: SeRestorePrivilege 3976 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Token: SeShutdownPrivilege 3976 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Token: SeDebugPrivilege 3976 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Token: SeSystemEnvironmentPrivilege 3976 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Token: SeChangeNotifyPrivilege 3976 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Token: SeRemoteShutdownPrivilege 3976 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Token: SeUndockPrivilege 3976 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Token: SeManageVolumePrivilege 3976 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Token: SeImpersonatePrivilege 3976 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Token: SeCreateGlobalPrivilege 3976 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Token: 33 3976 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Token: 34 3976 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Token: 35 3976 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Token: 36 3976 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Token: SeIncreaseQuotaPrivilege 3824 msdcsc.exe Token: SeSecurityPrivilege 3824 msdcsc.exe Token: SeTakeOwnershipPrivilege 3824 msdcsc.exe Token: SeLoadDriverPrivilege 3824 msdcsc.exe Token: SeSystemProfilePrivilege 3824 msdcsc.exe Token: SeSystemtimePrivilege 3824 msdcsc.exe Token: SeProfSingleProcessPrivilege 3824 msdcsc.exe Token: SeIncBasePriorityPrivilege 3824 msdcsc.exe Token: SeCreatePagefilePrivilege 3824 msdcsc.exe Token: SeBackupPrivilege 3824 msdcsc.exe Token: SeRestorePrivilege 3824 msdcsc.exe Token: SeShutdownPrivilege 3824 msdcsc.exe Token: SeDebugPrivilege 3824 msdcsc.exe Token: SeSystemEnvironmentPrivilege 3824 msdcsc.exe Token: SeChangeNotifyPrivilege 3824 msdcsc.exe Token: SeRemoteShutdownPrivilege 3824 msdcsc.exe Token: SeUndockPrivilege 3824 msdcsc.exe Token: SeManageVolumePrivilege 3824 msdcsc.exe Token: SeImpersonatePrivilege 3824 msdcsc.exe Token: SeCreateGlobalPrivilege 3824 msdcsc.exe Token: 33 3824 msdcsc.exe Token: 34 3824 msdcsc.exe Token: 35 3824 msdcsc.exe Token: 36 3824 msdcsc.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
msdcsc.exepid process 3824 msdcsc.exe -
Suspicious use of WriteProcessMemory 20 IoCs
Processes:
22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exedescription pid process target process PID 3976 wrote to memory of 1852 3976 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe notepad.exe PID 3976 wrote to memory of 1852 3976 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe notepad.exe PID 3976 wrote to memory of 1852 3976 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe notepad.exe PID 3976 wrote to memory of 1852 3976 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe notepad.exe PID 3976 wrote to memory of 1852 3976 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe notepad.exe PID 3976 wrote to memory of 1852 3976 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe notepad.exe PID 3976 wrote to memory of 1852 3976 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe notepad.exe PID 3976 wrote to memory of 1852 3976 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe notepad.exe PID 3976 wrote to memory of 1852 3976 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe notepad.exe PID 3976 wrote to memory of 1852 3976 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe notepad.exe PID 3976 wrote to memory of 1852 3976 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe notepad.exe PID 3976 wrote to memory of 1852 3976 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe notepad.exe PID 3976 wrote to memory of 1852 3976 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe notepad.exe PID 3976 wrote to memory of 1852 3976 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe notepad.exe PID 3976 wrote to memory of 1852 3976 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe notepad.exe PID 3976 wrote to memory of 1852 3976 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe notepad.exe PID 3976 wrote to memory of 1852 3976 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe notepad.exe PID 3976 wrote to memory of 3824 3976 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe msdcsc.exe PID 3976 wrote to memory of 3824 3976 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe msdcsc.exe PID 3976 wrote to memory of 3824 3976 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe msdcsc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe"C:\Users\Admin\AppData\Local\Temp\22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe"1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Modifies registry class
- 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\Local\Temp\windows\msdcsc.exe"C:\Users\Admin\AppData\Local\Temp\windows\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\Local\Temp\windows\msdcsc.exeMD5
61c6858c5ecd6f8c83bc8d318d9f9c5f
SHA14599c48f5a2057c7f07327e14de76f878a6170f4
SHA25622bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9
SHA51269b386ff6647d80beb1e6d3976819fd3bf9f07a9155dbb2895b5d2cceb7b9445df438eeb9723cfe13faccf97d04e6ecbd87209c26dc7b6413d5ad18ce87e90b0
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C:\Users\Admin\AppData\Local\Temp\windows\msdcsc.exeMD5
61c6858c5ecd6f8c83bc8d318d9f9c5f
SHA14599c48f5a2057c7f07327e14de76f878a6170f4
SHA25622bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9
SHA51269b386ff6647d80beb1e6d3976819fd3bf9f07a9155dbb2895b5d2cceb7b9445df438eeb9723cfe13faccf97d04e6ecbd87209c26dc7b6413d5ad18ce87e90b0
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memory/1852-1-0x00000000005B0000-0x00000000005B1000-memory.dmpFilesize
4KB
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memory/1852-0-0x0000000000000000-mapping.dmp
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memory/1852-2-0x0000000000000000-mapping.dmp
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memory/3824-3-0x0000000000000000-mapping.dmp