Analysis
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max time kernel
136s -
max time network
147s -
platform
windows10_x64 -
resource
win10v200430 -
submitted
14-07-2020 22:10
Static task
static1
Behavioral task
behavioral1
Sample
dc.ex_.exe
Resource
win7
Behavioral task
behavioral2
Sample
dc.ex_.exe
Resource
win10v200430
General
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Target
dc.ex_.exe
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Size
232KB
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MD5
723b2c572628265eac3aae9e9a447632
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SHA1
3a216ecf10f6973740f2dba2080f740d8b7d208a
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SHA256
441da136f0710485983eb1bc04622fbea2b7b97889242f62c5bee39e1116b88f
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SHA512
99dd2c715304e4bb1649c7fd00b45a77e54be398f2e501d3699bcfa6abf91746f14adf312189e032c75298ed12661c7f9e59ef2cff17ddc906ac94ab75efe05e
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
Processes:
dc.ex_.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\\DCSCMIN\\IMDCSC.exe" dc.ex_.exe -
Executes dropped EXE 1 IoCs
Processes:
IMDCSC.exepid process 2596 IMDCSC.exe -
Processes:
resource yara_rule C:\Users\Admin\AppData\Local\Temp\DCSCMIN\IMDCSC.exe upx C:\Users\Admin\AppData\Local\Temp\DCSCMIN\IMDCSC.exe upx -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
dc.ex_.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1231583446-2617009595-2137880041-1000\Software\Microsoft\Windows\CurrentVersion\Run\autoupdatepath = "C:\\Users\\Admin\\AppData\\Local\\Temp\\DCSCMIN\\IMDCSC.exe" dc.ex_.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 48 IoCs
Processes:
dc.ex_.exeIMDCSC.exedescription pid process Token: SeIncreaseQuotaPrivilege 3036 dc.ex_.exe Token: SeSecurityPrivilege 3036 dc.ex_.exe Token: SeTakeOwnershipPrivilege 3036 dc.ex_.exe Token: SeLoadDriverPrivilege 3036 dc.ex_.exe Token: SeSystemProfilePrivilege 3036 dc.ex_.exe Token: SeSystemtimePrivilege 3036 dc.ex_.exe Token: SeProfSingleProcessPrivilege 3036 dc.ex_.exe Token: SeIncBasePriorityPrivilege 3036 dc.ex_.exe Token: SeCreatePagefilePrivilege 3036 dc.ex_.exe Token: SeBackupPrivilege 3036 dc.ex_.exe Token: SeRestorePrivilege 3036 dc.ex_.exe Token: SeShutdownPrivilege 3036 dc.ex_.exe Token: SeDebugPrivilege 3036 dc.ex_.exe Token: SeSystemEnvironmentPrivilege 3036 dc.ex_.exe Token: SeChangeNotifyPrivilege 3036 dc.ex_.exe Token: SeRemoteShutdownPrivilege 3036 dc.ex_.exe Token: SeUndockPrivilege 3036 dc.ex_.exe Token: SeManageVolumePrivilege 3036 dc.ex_.exe Token: SeImpersonatePrivilege 3036 dc.ex_.exe Token: SeCreateGlobalPrivilege 3036 dc.ex_.exe Token: 33 3036 dc.ex_.exe Token: 34 3036 dc.ex_.exe Token: 35 3036 dc.ex_.exe Token: 36 3036 dc.ex_.exe Token: SeIncreaseQuotaPrivilege 2596 IMDCSC.exe Token: SeSecurityPrivilege 2596 IMDCSC.exe Token: SeTakeOwnershipPrivilege 2596 IMDCSC.exe Token: SeLoadDriverPrivilege 2596 IMDCSC.exe Token: SeSystemProfilePrivilege 2596 IMDCSC.exe Token: SeSystemtimePrivilege 2596 IMDCSC.exe Token: SeProfSingleProcessPrivilege 2596 IMDCSC.exe Token: SeIncBasePriorityPrivilege 2596 IMDCSC.exe Token: SeCreatePagefilePrivilege 2596 IMDCSC.exe Token: SeBackupPrivilege 2596 IMDCSC.exe Token: SeRestorePrivilege 2596 IMDCSC.exe Token: SeShutdownPrivilege 2596 IMDCSC.exe Token: SeDebugPrivilege 2596 IMDCSC.exe Token: SeSystemEnvironmentPrivilege 2596 IMDCSC.exe Token: SeChangeNotifyPrivilege 2596 IMDCSC.exe Token: SeRemoteShutdownPrivilege 2596 IMDCSC.exe Token: SeUndockPrivilege 2596 IMDCSC.exe Token: SeManageVolumePrivilege 2596 IMDCSC.exe Token: SeImpersonatePrivilege 2596 IMDCSC.exe Token: SeCreateGlobalPrivilege 2596 IMDCSC.exe Token: 33 2596 IMDCSC.exe Token: 34 2596 IMDCSC.exe Token: 35 2596 IMDCSC.exe Token: 36 2596 IMDCSC.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
IMDCSC.exepid process 2596 IMDCSC.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
dc.ex_.exedescription pid process target process PID 3036 wrote to memory of 2596 3036 dc.ex_.exe IMDCSC.exe PID 3036 wrote to memory of 2596 3036 dc.ex_.exe IMDCSC.exe PID 3036 wrote to memory of 2596 3036 dc.ex_.exe IMDCSC.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\dc.ex_.exe"C:\Users\Admin\AppData\Local\Temp\dc.ex_.exe"1⤵
- Modifies WinLogon for persistence
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3036 -
C:\Users\Admin\AppData\Local\Temp\DCSCMIN\IMDCSC.exe"C:\Users\Admin\AppData\Local\Temp\DCSCMIN\IMDCSC.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2596
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\DCSCMIN\IMDCSC.exeMD5
723b2c572628265eac3aae9e9a447632
SHA13a216ecf10f6973740f2dba2080f740d8b7d208a
SHA256441da136f0710485983eb1bc04622fbea2b7b97889242f62c5bee39e1116b88f
SHA51299dd2c715304e4bb1649c7fd00b45a77e54be398f2e501d3699bcfa6abf91746f14adf312189e032c75298ed12661c7f9e59ef2cff17ddc906ac94ab75efe05e
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C:\Users\Admin\AppData\Local\Temp\DCSCMIN\IMDCSC.exeMD5
723b2c572628265eac3aae9e9a447632
SHA13a216ecf10f6973740f2dba2080f740d8b7d208a
SHA256441da136f0710485983eb1bc04622fbea2b7b97889242f62c5bee39e1116b88f
SHA51299dd2c715304e4bb1649c7fd00b45a77e54be398f2e501d3699bcfa6abf91746f14adf312189e032c75298ed12661c7f9e59ef2cff17ddc906ac94ab75efe05e
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memory/2596-0-0x0000000000000000-mapping.dmp