Analysis
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max time kernel
181s -
max time network
201s -
platform
windows10_x64 -
resource
win10-en-20211208 -
submitted
29-01-2022 21:18
Behavioral task
behavioral1
Sample
e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.exe
Resource
win7-en-20211208
General
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Target
e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.exe
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Size
663KB
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MD5
20cd25a7bce759a071678bdf8ec7d7bd
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SHA1
a486797a9e14fdaa1ca29a41510a7a431edb759d
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SHA256
e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2
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SHA512
5fd7c87832d1868c0cbb8b3bbc6bfb7082b46f68a6b37516602905f6ec0815f9c4f738d4de3dd62b49d10986f15569dcc5c4f2d6a503961c7fb36beeaacd1b1f
Malware Config
Extracted
darkcomet
Zombie
darkdaniblack.no-ip.biz:1604
DC_MUTEX-2F47BJV
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InstallPath
MSDCSC\msdcsc.exe
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gencode
GkM9fiMqtYcs
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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
MicroUpdate
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
Processes:
e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.exe -
Executes dropped EXE 1 IoCs
Processes:
msdcsc.exepid process 1768 msdcsc.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2361464256-2201551969-2316606395-1000\Control Panel\International\Geo\Nation e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.exemsdcsc.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2361464256-2201551969-2316606395-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.exe Set value (str) \REGISTRY\USER\S-1-5-21-2361464256-2201551969-2316606395-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\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:
e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
msdcsc.exepid process 1768 msdcsc.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
Processes:
e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.exemsdcsc.exedescription pid process Token: SeIncreaseQuotaPrivilege 3336 e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.exe Token: SeSecurityPrivilege 3336 e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.exe Token: SeTakeOwnershipPrivilege 3336 e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.exe Token: SeLoadDriverPrivilege 3336 e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.exe Token: SeSystemProfilePrivilege 3336 e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.exe Token: SeSystemtimePrivilege 3336 e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.exe Token: SeProfSingleProcessPrivilege 3336 e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.exe Token: SeIncBasePriorityPrivilege 3336 e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.exe Token: SeCreatePagefilePrivilege 3336 e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.exe Token: SeBackupPrivilege 3336 e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.exe Token: SeRestorePrivilege 3336 e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.exe Token: SeShutdownPrivilege 3336 e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.exe Token: SeDebugPrivilege 3336 e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.exe Token: SeSystemEnvironmentPrivilege 3336 e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.exe Token: SeChangeNotifyPrivilege 3336 e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.exe Token: SeRemoteShutdownPrivilege 3336 e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.exe Token: SeUndockPrivilege 3336 e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.exe Token: SeManageVolumePrivilege 3336 e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.exe Token: SeImpersonatePrivilege 3336 e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.exe Token: SeCreateGlobalPrivilege 3336 e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.exe Token: 33 3336 e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.exe Token: 34 3336 e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.exe Token: 35 3336 e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.exe Token: 36 3336 e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.exe Token: SeIncreaseQuotaPrivilege 1768 msdcsc.exe Token: SeSecurityPrivilege 1768 msdcsc.exe Token: SeTakeOwnershipPrivilege 1768 msdcsc.exe Token: SeLoadDriverPrivilege 1768 msdcsc.exe Token: SeSystemProfilePrivilege 1768 msdcsc.exe Token: SeSystemtimePrivilege 1768 msdcsc.exe Token: SeProfSingleProcessPrivilege 1768 msdcsc.exe Token: SeIncBasePriorityPrivilege 1768 msdcsc.exe Token: SeCreatePagefilePrivilege 1768 msdcsc.exe Token: SeBackupPrivilege 1768 msdcsc.exe Token: SeRestorePrivilege 1768 msdcsc.exe Token: SeShutdownPrivilege 1768 msdcsc.exe Token: SeDebugPrivilege 1768 msdcsc.exe Token: SeSystemEnvironmentPrivilege 1768 msdcsc.exe Token: SeChangeNotifyPrivilege 1768 msdcsc.exe Token: SeRemoteShutdownPrivilege 1768 msdcsc.exe Token: SeUndockPrivilege 1768 msdcsc.exe Token: SeManageVolumePrivilege 1768 msdcsc.exe Token: SeImpersonatePrivilege 1768 msdcsc.exe Token: SeCreateGlobalPrivilege 1768 msdcsc.exe Token: 33 1768 msdcsc.exe Token: 34 1768 msdcsc.exe Token: 35 1768 msdcsc.exe Token: 36 1768 msdcsc.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
msdcsc.exepid process 1768 msdcsc.exe -
Suspicious use of WriteProcessMemory 37 IoCs
Processes:
e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.execmd.execmd.exemsdcsc.exedescription pid process target process PID 3336 wrote to memory of 1040 3336 e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.exe cmd.exe PID 3336 wrote to memory of 1040 3336 e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.exe cmd.exe PID 3336 wrote to memory of 1040 3336 e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.exe cmd.exe PID 3336 wrote to memory of 1112 3336 e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.exe cmd.exe PID 3336 wrote to memory of 1112 3336 e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.exe cmd.exe PID 3336 wrote to memory of 1112 3336 e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.exe cmd.exe PID 1040 wrote to memory of 2876 1040 cmd.exe attrib.exe PID 1112 wrote to memory of 2868 1112 cmd.exe attrib.exe PID 1112 wrote to memory of 2868 1112 cmd.exe attrib.exe PID 1040 wrote to memory of 2876 1040 cmd.exe attrib.exe PID 1112 wrote to memory of 2868 1112 cmd.exe attrib.exe PID 1040 wrote to memory of 2876 1040 cmd.exe attrib.exe PID 3336 wrote to memory of 1768 3336 e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.exe msdcsc.exe PID 3336 wrote to memory of 1768 3336 e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.exe msdcsc.exe PID 3336 wrote to memory of 1768 3336 e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.exe msdcsc.exe PID 1768 wrote to memory of 676 1768 msdcsc.exe notepad.exe PID 1768 wrote to memory of 676 1768 msdcsc.exe notepad.exe PID 1768 wrote to memory of 676 1768 msdcsc.exe notepad.exe PID 1768 wrote to memory of 676 1768 msdcsc.exe notepad.exe PID 1768 wrote to memory of 676 1768 msdcsc.exe notepad.exe PID 1768 wrote to memory of 676 1768 msdcsc.exe notepad.exe PID 1768 wrote to memory of 676 1768 msdcsc.exe notepad.exe PID 1768 wrote to memory of 676 1768 msdcsc.exe notepad.exe PID 1768 wrote to memory of 676 1768 msdcsc.exe notepad.exe PID 1768 wrote to memory of 676 1768 msdcsc.exe notepad.exe PID 1768 wrote to memory of 676 1768 msdcsc.exe notepad.exe PID 1768 wrote to memory of 676 1768 msdcsc.exe notepad.exe PID 1768 wrote to memory of 676 1768 msdcsc.exe notepad.exe PID 1768 wrote to memory of 676 1768 msdcsc.exe notepad.exe PID 1768 wrote to memory of 676 1768 msdcsc.exe notepad.exe PID 1768 wrote to memory of 676 1768 msdcsc.exe notepad.exe PID 1768 wrote to memory of 676 1768 msdcsc.exe notepad.exe PID 1768 wrote to memory of 676 1768 msdcsc.exe notepad.exe PID 1768 wrote to memory of 676 1768 msdcsc.exe notepad.exe PID 1768 wrote to memory of 676 1768 msdcsc.exe notepad.exe PID 1768 wrote to memory of 676 1768 msdcsc.exe notepad.exe PID 1768 wrote to memory of 676 1768 msdcsc.exe notepad.exe -
Views/modifies file attributes 1 TTPs 2 IoCs
Processes:
attrib.exeattrib.exepid process 2876 attrib.exe 2868 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.exe"C:\Users\Admin\AppData\Local\Temp\e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.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\e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.exe" +s +h2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\attrib.exeattrib "C:\Users\Admin\AppData\Local\Temp\e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2.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:\Users\Admin\Documents\MSDCSC\msdcsc.exe"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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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:\Users\Admin\Documents\MSDCSC\msdcsc.exeMD5
20cd25a7bce759a071678bdf8ec7d7bd
SHA1a486797a9e14fdaa1ca29a41510a7a431edb759d
SHA256e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2
SHA5125fd7c87832d1868c0cbb8b3bbc6bfb7082b46f68a6b37516602905f6ec0815f9c4f738d4de3dd62b49d10986f15569dcc5c4f2d6a503961c7fb36beeaacd1b1f
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C:\Users\Admin\Documents\MSDCSC\msdcsc.exeMD5
20cd25a7bce759a071678bdf8ec7d7bd
SHA1a486797a9e14fdaa1ca29a41510a7a431edb759d
SHA256e16b54b0e20b5fa20f57623f6ae72f0afd9f7d1857e880db71e2a4c468f519d2
SHA5125fd7c87832d1868c0cbb8b3bbc6bfb7082b46f68a6b37516602905f6ec0815f9c4f738d4de3dd62b49d10986f15569dcc5c4f2d6a503961c7fb36beeaacd1b1f
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memory/676-122-0x0000000002EB0000-0x0000000002EB1000-memory.dmpFilesize
4KB
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memory/1768-121-0x00000000020E0000-0x00000000020E1000-memory.dmpFilesize
4KB
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memory/3336-118-0x0000000002300000-0x0000000002301000-memory.dmpFilesize
4KB