Analysis
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max time kernel
150s -
max time network
149s -
platform
windows10_x64 -
resource
win10v20210410 -
submitted
16-05-2021 03:05
Static task
static1
Behavioral task
behavioral1
Sample
a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe
Resource
win7v20210408
General
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Target
a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe
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Size
252KB
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MD5
7e41570ab9678e9ab7d4ed8c7f1a008d
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SHA1
0d9bb329e6c5d4ba4005a7ec7431c16c28df20e6
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SHA256
a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8
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SHA512
63bcb5b37eda11106eac97fb63eaec57b1119b78a45d6aaf4ae0801e43e6c75c9f206dce4439bbd9fb57f4f3f4cdbb9f781beb02b8a4d60e05d956d8c915f1a6
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
Processes:
a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\Programs\\MSDCSC\\msdcsc.exe" a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe -
Modifies firewall policy service 2 TTPs 3 IoCs
Processes:
msdcsc.exedescription ioc process Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile msdcsc.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0" msdcsc.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0" msdcsc.exe -
Modifies security service 2 TTPs 1 IoCs
Processes:
msdcsc.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Start = "4" msdcsc.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 2796 msdcsc.exe -
Processes:
resource yara_rule C:\ProgramData\Microsoft\Windows\Start Menu\Programs\MSDCSC\msdcsc.exe upx C:\ProgramData\Microsoft\Windows\Start Menu\Programs\MSDCSC\msdcsc.exe upx -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Control Panel\International\Geo\Nation a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe -
Deletes itself 1 IoCs
Processes:
notepad.exepid process 2608 notepad.exe -
Processes:
msdcsc.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" msdcsc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" msdcsc.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exemsdcsc.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows = "C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\Programs\\MSDCSC\\msdcsc.exe" a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe Set value (str) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows = "C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\Programs\\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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Modifies registry class 1 IoCs
Processes:
a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
msdcsc.exepid process 2796 msdcsc.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
Processes:
a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exemsdcsc.exedescription pid process Token: SeIncreaseQuotaPrivilege 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe Token: SeSecurityPrivilege 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe Token: SeTakeOwnershipPrivilege 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe Token: SeLoadDriverPrivilege 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe Token: SeSystemProfilePrivilege 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe Token: SeSystemtimePrivilege 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe Token: SeProfSingleProcessPrivilege 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe Token: SeIncBasePriorityPrivilege 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe Token: SeCreatePagefilePrivilege 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe Token: SeBackupPrivilege 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe Token: SeRestorePrivilege 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe Token: SeShutdownPrivilege 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe Token: SeDebugPrivilege 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe Token: SeSystemEnvironmentPrivilege 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe Token: SeChangeNotifyPrivilege 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe Token: SeRemoteShutdownPrivilege 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe Token: SeUndockPrivilege 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe Token: SeManageVolumePrivilege 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe Token: SeImpersonatePrivilege 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe Token: SeCreateGlobalPrivilege 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe Token: 33 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe Token: 34 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe Token: 35 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe Token: 36 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe Token: SeIncreaseQuotaPrivilege 2796 msdcsc.exe Token: SeSecurityPrivilege 2796 msdcsc.exe Token: SeTakeOwnershipPrivilege 2796 msdcsc.exe Token: SeLoadDriverPrivilege 2796 msdcsc.exe Token: SeSystemProfilePrivilege 2796 msdcsc.exe Token: SeSystemtimePrivilege 2796 msdcsc.exe Token: SeProfSingleProcessPrivilege 2796 msdcsc.exe Token: SeIncBasePriorityPrivilege 2796 msdcsc.exe Token: SeCreatePagefilePrivilege 2796 msdcsc.exe Token: SeBackupPrivilege 2796 msdcsc.exe Token: SeRestorePrivilege 2796 msdcsc.exe Token: SeShutdownPrivilege 2796 msdcsc.exe Token: SeDebugPrivilege 2796 msdcsc.exe Token: SeSystemEnvironmentPrivilege 2796 msdcsc.exe Token: SeChangeNotifyPrivilege 2796 msdcsc.exe Token: SeRemoteShutdownPrivilege 2796 msdcsc.exe Token: SeUndockPrivilege 2796 msdcsc.exe Token: SeManageVolumePrivilege 2796 msdcsc.exe Token: SeImpersonatePrivilege 2796 msdcsc.exe Token: SeCreateGlobalPrivilege 2796 msdcsc.exe Token: 33 2796 msdcsc.exe Token: 34 2796 msdcsc.exe Token: 35 2796 msdcsc.exe Token: 36 2796 msdcsc.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
msdcsc.exepid process 2796 msdcsc.exe -
Suspicious use of WriteProcessMemory 54 IoCs
Processes:
a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.execmd.execmd.exemsdcsc.exedescription pid process target process PID 3724 wrote to memory of 2368 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe cmd.exe PID 3724 wrote to memory of 2368 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe cmd.exe PID 3724 wrote to memory of 2368 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe cmd.exe PID 3724 wrote to memory of 2408 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe cmd.exe PID 3724 wrote to memory of 2408 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe cmd.exe PID 3724 wrote to memory of 2408 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe cmd.exe PID 3724 wrote to memory of 2608 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe notepad.exe PID 3724 wrote to memory of 2608 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe notepad.exe PID 3724 wrote to memory of 2608 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe notepad.exe PID 3724 wrote to memory of 2608 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe notepad.exe PID 3724 wrote to memory of 2608 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe notepad.exe PID 3724 wrote to memory of 2608 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe notepad.exe PID 3724 wrote to memory of 2608 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe notepad.exe PID 3724 wrote to memory of 2608 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe notepad.exe PID 3724 wrote to memory of 2608 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe notepad.exe PID 3724 wrote to memory of 2608 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe notepad.exe PID 3724 wrote to memory of 2608 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe notepad.exe PID 3724 wrote to memory of 2608 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe notepad.exe PID 3724 wrote to memory of 2608 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe notepad.exe PID 3724 wrote to memory of 2608 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe notepad.exe PID 3724 wrote to memory of 2608 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe notepad.exe PID 3724 wrote to memory of 2608 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe notepad.exe PID 3724 wrote to memory of 2608 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe notepad.exe PID 2408 wrote to memory of 3984 2408 cmd.exe attrib.exe PID 2408 wrote to memory of 3984 2408 cmd.exe attrib.exe PID 2408 wrote to memory of 3984 2408 cmd.exe attrib.exe PID 3724 wrote to memory of 2796 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe msdcsc.exe PID 3724 wrote to memory of 2796 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe msdcsc.exe PID 3724 wrote to memory of 2796 3724 a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe msdcsc.exe PID 2368 wrote to memory of 2336 2368 cmd.exe attrib.exe PID 2368 wrote to memory of 2336 2368 cmd.exe attrib.exe PID 2368 wrote to memory of 2336 2368 cmd.exe attrib.exe PID 2796 wrote to memory of 1356 2796 msdcsc.exe notepad.exe PID 2796 wrote to memory of 1356 2796 msdcsc.exe notepad.exe PID 2796 wrote to memory of 1356 2796 msdcsc.exe notepad.exe PID 2796 wrote to memory of 1356 2796 msdcsc.exe notepad.exe PID 2796 wrote to memory of 1356 2796 msdcsc.exe notepad.exe PID 2796 wrote to memory of 1356 2796 msdcsc.exe notepad.exe PID 2796 wrote to memory of 1356 2796 msdcsc.exe notepad.exe PID 2796 wrote to memory of 1356 2796 msdcsc.exe notepad.exe PID 2796 wrote to memory of 1356 2796 msdcsc.exe notepad.exe PID 2796 wrote to memory of 1356 2796 msdcsc.exe notepad.exe PID 2796 wrote to memory of 1356 2796 msdcsc.exe notepad.exe PID 2796 wrote to memory of 1356 2796 msdcsc.exe notepad.exe PID 2796 wrote to memory of 1356 2796 msdcsc.exe notepad.exe PID 2796 wrote to memory of 1356 2796 msdcsc.exe notepad.exe PID 2796 wrote to memory of 1356 2796 msdcsc.exe notepad.exe PID 2796 wrote to memory of 1356 2796 msdcsc.exe notepad.exe PID 2796 wrote to memory of 1356 2796 msdcsc.exe notepad.exe PID 2796 wrote to memory of 1356 2796 msdcsc.exe notepad.exe PID 2796 wrote to memory of 1356 2796 msdcsc.exe notepad.exe PID 2796 wrote to memory of 1356 2796 msdcsc.exe notepad.exe PID 2796 wrote to memory of 1356 2796 msdcsc.exe notepad.exe PID 2796 wrote to memory of 1356 2796 msdcsc.exe notepad.exe -
System policy modification 1 TTPs 3 IoCs
Processes:
msdcsc.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern\NoControlPanel = "1" msdcsc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion msdcsc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern msdcsc.exe -
Views/modifies file attributes 1 TTPs 2 IoCs
Processes:
attrib.exeattrib.exepid process 3984 attrib.exe 2336 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe"C:\Users\Admin\AppData\Local\Temp\a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.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\cmd.exe"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe" +s +h2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\attrib.exeattrib "C:\Users\Admin\AppData\Local\Temp\a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8.exe" +s +h3⤵
- Views/modifies file attributes
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\attrib.exeattrib "C:\Users\Admin\AppData\Local\Temp" +s +h3⤵
- Views/modifies file attributes
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C:\Windows\SysWOW64\notepad.exenotepad2⤵
- Deletes itself
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C:\ProgramData\Microsoft\Windows\Start Menu\Programs\MSDCSC\msdcsc.exe"C:\ProgramData\Microsoft\Windows\Start Menu\Programs\MSDCSC\msdcsc.exe"2⤵
- Modifies firewall policy service
- Modifies security service
- Executes dropped EXE
- Windows security modification
- Adds Run key to start application
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- System policy modification
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C:\Windows\SysWOW64\notepad.exenotepad3⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\ProgramData\Microsoft\Windows\Start Menu\Programs\MSDCSC\msdcsc.exeMD5
7e41570ab9678e9ab7d4ed8c7f1a008d
SHA10d9bb329e6c5d4ba4005a7ec7431c16c28df20e6
SHA256a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8
SHA51263bcb5b37eda11106eac97fb63eaec57b1119b78a45d6aaf4ae0801e43e6c75c9f206dce4439bbd9fb57f4f3f4cdbb9f781beb02b8a4d60e05d956d8c915f1a6
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C:\ProgramData\Microsoft\Windows\Start Menu\Programs\MSDCSC\msdcsc.exeMD5
7e41570ab9678e9ab7d4ed8c7f1a008d
SHA10d9bb329e6c5d4ba4005a7ec7431c16c28df20e6
SHA256a796c6a97f238d9c70c96069464ed124c93106366f21d101b299d5fcc611f8d8
SHA51263bcb5b37eda11106eac97fb63eaec57b1119b78a45d6aaf4ae0801e43e6c75c9f206dce4439bbd9fb57f4f3f4cdbb9f781beb02b8a4d60e05d956d8c915f1a6
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memory/1356-124-0x0000000000000000-mapping.dmp
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memory/1356-126-0x0000000000710000-0x0000000000711000-memory.dmpFilesize
4KB
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memory/2336-123-0x0000000000000000-mapping.dmp
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memory/2368-115-0x0000000000000000-mapping.dmp
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memory/2408-116-0x0000000000000000-mapping.dmp
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memory/2608-117-0x0000000000000000-mapping.dmp
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memory/2608-119-0x0000000002FE0000-0x0000000002FE1000-memory.dmpFilesize
4KB
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memory/2796-120-0x0000000000000000-mapping.dmp
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memory/2796-125-0x0000000000510000-0x000000000065A000-memory.dmpFilesize
1.3MB
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memory/3724-114-0x0000000000C10000-0x0000000000C11000-memory.dmpFilesize
4KB
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memory/3984-118-0x0000000000000000-mapping.dmp