Analysis
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max time kernel
150s -
max time network
11s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
15-11-2020 22:45
Static task
static1
Behavioral task
behavioral1
Sample
84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe
Resource
win7v20201028
General
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Target
84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe
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Size
252KB
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MD5
256af85b0eddc2327bab24817097194a
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SHA1
215e426721e69b35e3535f1dc8a868ab06f12389
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SHA256
84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43
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SHA512
54d006945b25fe51921c449a8d164c7c1c8c5ce48b51e42c6a32d26f26f412b7306856c8a44e73772f659c85dc989bc57f250f5aed9e0747fbe627d682db2a9c
Malware Config
Extracted
darkcomet
lox
logan.bounceme.net:1604
DC_MUTEX-HKYPFJY
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InstallPath
MSDCSC\msdcsc.exe
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gencode
UoVSUsqvZCVe
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install
true
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offline_keylogger
true
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persistence
true
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reg_key
vshost
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
Processes:
84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.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" 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe -
Modifies firewall policy service 2 TTPs 6 IoCs
Processes:
msdcsc.exeiexplore.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0" msdcsc.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile iexplore.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0" iexplore.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0" iexplore.exe 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 -
Modifies security service 2 TTPs 2 IoCs
Processes:
msdcsc.exeiexplore.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wscsvc\Start = "4" msdcsc.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wscsvc\Start = "4" iexplore.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 2024 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 behavioral1/memory/1972-8-0x0000000000400000-0x00000000004B7000-memory.dmp upx behavioral1/memory/1972-10-0x0000000000400000-0x00000000004B7000-memory.dmp upx behavioral1/memory/1972-11-0x0000000000400000-0x00000000004B7000-memory.dmp upx -
Deletes itself 1 IoCs
Processes:
notepad.exepid process 1900 notepad.exe -
Loads dropped DLL 2 IoCs
Processes:
84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exepid process 748 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe 748 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.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 3 IoCs
Processes:
84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exemsdcsc.exeiexplore.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Windows\CurrentVersion\Run\vshost = "C:\\Users\\Admin\\AppData\\Roaming\\MSDCSC\\msdcsc.exe" 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe Set value (str) \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Windows\CurrentVersion\Run\vshost = "C:\\Users\\Admin\\AppData\\Roaming\\MSDCSC\\msdcsc.exe" msdcsc.exe Set value (str) \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Windows\CurrentVersion\Run\vshost = "C:\\Users\\Admin\\AppData\\Roaming\\MSDCSC\\msdcsc.exe" iexplore.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
msdcsc.exedescription pid process target process PID 2024 set thread context of 1972 2024 msdcsc.exe iexplore.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 64 IoCs
Processes:
84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exemsdcsc.exeiexplore.exedescription pid process Token: SeIncreaseQuotaPrivilege 748 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe Token: SeSecurityPrivilege 748 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe Token: SeTakeOwnershipPrivilege 748 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe Token: SeLoadDriverPrivilege 748 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe Token: SeSystemProfilePrivilege 748 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe Token: SeSystemtimePrivilege 748 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe Token: SeProfSingleProcessPrivilege 748 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe Token: SeIncBasePriorityPrivilege 748 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe Token: SeCreatePagefilePrivilege 748 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe Token: SeBackupPrivilege 748 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe Token: SeRestorePrivilege 748 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe Token: SeShutdownPrivilege 748 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe Token: SeDebugPrivilege 748 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe Token: SeSystemEnvironmentPrivilege 748 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe Token: SeChangeNotifyPrivilege 748 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe Token: SeRemoteShutdownPrivilege 748 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe Token: SeUndockPrivilege 748 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe Token: SeManageVolumePrivilege 748 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe Token: SeImpersonatePrivilege 748 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe Token: SeCreateGlobalPrivilege 748 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe Token: 33 748 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe Token: 34 748 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe Token: 35 748 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe Token: SeIncreaseQuotaPrivilege 2024 msdcsc.exe Token: SeSecurityPrivilege 2024 msdcsc.exe Token: SeTakeOwnershipPrivilege 2024 msdcsc.exe Token: SeLoadDriverPrivilege 2024 msdcsc.exe Token: SeSystemProfilePrivilege 2024 msdcsc.exe Token: SeSystemtimePrivilege 2024 msdcsc.exe Token: SeProfSingleProcessPrivilege 2024 msdcsc.exe Token: SeIncBasePriorityPrivilege 2024 msdcsc.exe Token: SeCreatePagefilePrivilege 2024 msdcsc.exe Token: SeBackupPrivilege 2024 msdcsc.exe Token: SeRestorePrivilege 2024 msdcsc.exe Token: SeShutdownPrivilege 2024 msdcsc.exe Token: SeDebugPrivilege 2024 msdcsc.exe Token: SeSystemEnvironmentPrivilege 2024 msdcsc.exe Token: SeChangeNotifyPrivilege 2024 msdcsc.exe Token: SeRemoteShutdownPrivilege 2024 msdcsc.exe Token: SeUndockPrivilege 2024 msdcsc.exe Token: SeManageVolumePrivilege 2024 msdcsc.exe Token: SeImpersonatePrivilege 2024 msdcsc.exe Token: SeCreateGlobalPrivilege 2024 msdcsc.exe Token: 33 2024 msdcsc.exe Token: 34 2024 msdcsc.exe Token: 35 2024 msdcsc.exe Token: SeIncreaseQuotaPrivilege 1972 iexplore.exe Token: SeSecurityPrivilege 1972 iexplore.exe Token: SeTakeOwnershipPrivilege 1972 iexplore.exe Token: SeLoadDriverPrivilege 1972 iexplore.exe Token: SeSystemProfilePrivilege 1972 iexplore.exe Token: SeSystemtimePrivilege 1972 iexplore.exe Token: SeProfSingleProcessPrivilege 1972 iexplore.exe Token: SeIncBasePriorityPrivilege 1972 iexplore.exe Token: SeCreatePagefilePrivilege 1972 iexplore.exe Token: SeBackupPrivilege 1972 iexplore.exe Token: SeRestorePrivilege 1972 iexplore.exe Token: SeShutdownPrivilege 1972 iexplore.exe Token: SeDebugPrivilege 1972 iexplore.exe Token: SeSystemEnvironmentPrivilege 1972 iexplore.exe Token: SeChangeNotifyPrivilege 1972 iexplore.exe Token: SeRemoteShutdownPrivilege 1972 iexplore.exe Token: SeUndockPrivilege 1972 iexplore.exe Token: SeManageVolumePrivilege 1972 iexplore.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
iexplore.exepid process 1972 iexplore.exe -
Suspicious use of WriteProcessMemory 28 IoCs
Processes:
84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exemsdcsc.exedescription pid process target process PID 748 wrote to memory of 1900 748 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe notepad.exe PID 748 wrote to memory of 1900 748 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe notepad.exe PID 748 wrote to memory of 1900 748 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe notepad.exe PID 748 wrote to memory of 1900 748 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe notepad.exe PID 748 wrote to memory of 1900 748 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe notepad.exe PID 748 wrote to memory of 1900 748 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe notepad.exe PID 748 wrote to memory of 1900 748 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe notepad.exe PID 748 wrote to memory of 1900 748 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe notepad.exe PID 748 wrote to memory of 1900 748 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe notepad.exe PID 748 wrote to memory of 1900 748 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe notepad.exe PID 748 wrote to memory of 1900 748 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe notepad.exe PID 748 wrote to memory of 1900 748 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe notepad.exe PID 748 wrote to memory of 1900 748 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe notepad.exe PID 748 wrote to memory of 1900 748 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe notepad.exe PID 748 wrote to memory of 1900 748 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe notepad.exe PID 748 wrote to memory of 1900 748 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe notepad.exe PID 748 wrote to memory of 1900 748 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe notepad.exe PID 748 wrote to memory of 1900 748 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe notepad.exe PID 748 wrote to memory of 2024 748 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe msdcsc.exe PID 748 wrote to memory of 2024 748 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe msdcsc.exe PID 748 wrote to memory of 2024 748 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe msdcsc.exe PID 748 wrote to memory of 2024 748 84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe msdcsc.exe PID 2024 wrote to memory of 1972 2024 msdcsc.exe iexplore.exe PID 2024 wrote to memory of 1972 2024 msdcsc.exe iexplore.exe PID 2024 wrote to memory of 1972 2024 msdcsc.exe iexplore.exe PID 2024 wrote to memory of 1972 2024 msdcsc.exe iexplore.exe PID 2024 wrote to memory of 1972 2024 msdcsc.exe iexplore.exe PID 2024 wrote to memory of 1972 2024 msdcsc.exe iexplore.exe -
System policy modification 1 TTPs 3 IoCs
Processes:
msdcsc.exedescription ioc process 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 Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern\NoControlPanel = "1" msdcsc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.exe"C:\Users\Admin\AppData\Local\Temp\84b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43.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⤵
- Modifies firewall policy service
- Modifies security service
- Executes dropped EXE
- Windows security modification
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
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C:\Program Files (x86)\Internet Explorer\iexplore.exe"C:\Program Files (x86)\Internet Explorer\iexplore.exe"3⤵
- Modifies firewall policy service
- Modifies security service
- 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
256af85b0eddc2327bab24817097194a
SHA1215e426721e69b35e3535f1dc8a868ab06f12389
SHA25684b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43
SHA51254d006945b25fe51921c449a8d164c7c1c8c5ce48b51e42c6a32d26f26f412b7306856c8a44e73772f659c85dc989bc57f250f5aed9e0747fbe627d682db2a9c
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C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exeMD5
256af85b0eddc2327bab24817097194a
SHA1215e426721e69b35e3535f1dc8a868ab06f12389
SHA25684b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43
SHA51254d006945b25fe51921c449a8d164c7c1c8c5ce48b51e42c6a32d26f26f412b7306856c8a44e73772f659c85dc989bc57f250f5aed9e0747fbe627d682db2a9c
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\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exeMD5
256af85b0eddc2327bab24817097194a
SHA1215e426721e69b35e3535f1dc8a868ab06f12389
SHA25684b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43
SHA51254d006945b25fe51921c449a8d164c7c1c8c5ce48b51e42c6a32d26f26f412b7306856c8a44e73772f659c85dc989bc57f250f5aed9e0747fbe627d682db2a9c
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\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exeMD5
256af85b0eddc2327bab24817097194a
SHA1215e426721e69b35e3535f1dc8a868ab06f12389
SHA25684b059d0b1c74fbbcb4bea1cc2da4adcbfc67de84ea9a8c37ee8da96100c5c43
SHA51254d006945b25fe51921c449a8d164c7c1c8c5ce48b51e42c6a32d26f26f412b7306856c8a44e73772f659c85dc989bc57f250f5aed9e0747fbe627d682db2a9c
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memory/1900-0-0x0000000000000000-mapping.dmp
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memory/1900-1-0x00000000001D0000-0x00000000001D1000-memory.dmpFilesize
4KB
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memory/1900-2-0x0000000000000000-mapping.dmp
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memory/1972-8-0x0000000000400000-0x00000000004B7000-memory.dmpFilesize
732KB
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memory/1972-9-0x00000000004B5850-mapping.dmp
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memory/1972-10-0x0000000000400000-0x00000000004B7000-memory.dmpFilesize
732KB
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memory/1972-11-0x0000000000400000-0x00000000004B7000-memory.dmpFilesize
732KB
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memory/2024-5-0x0000000000000000-mapping.dmp