Analysis
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max time kernel
150s -
max time network
12s -
platform
windows7_x64 -
resource
win7v20210408 -
submitted
05-05-2021 02:07
Static task
static1
Behavioral task
behavioral1
Sample
fa77365a2b757aa8e3c0dea845aeb2e0ac77ab0f6138c140fd165da72ebbf098.exe
Resource
win7v20210408
Behavioral task
behavioral2
Sample
fa77365a2b757aa8e3c0dea845aeb2e0ac77ab0f6138c140fd165da72ebbf098.exe
Resource
win10v20210410
General
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Target
fa77365a2b757aa8e3c0dea845aeb2e0ac77ab0f6138c140fd165da72ebbf098.exe
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Size
658KB
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MD5
d3d964677264a3cb1c7a6a4e507f513d
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SHA1
5a725d084eb47e796fba25498095be7c0f49061b
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SHA256
fa77365a2b757aa8e3c0dea845aeb2e0ac77ab0f6138c140fd165da72ebbf098
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SHA512
87c8100ef3973bda93d327ba90563d9b99fd808bbdfa1b6008b4bf28fd410835141b85016a7eac50133f5c590a5bfceb5e3a702d0b463d6a2b09ade26687c6a6
Malware Config
Extracted
darkcomet
Guest16_min
127.0.0.1:1604
DCMIN_MUTEX-ZAM848X
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InstallPath
DCSCMIN\IMDCSC.exe
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gencode
Lwy69h3CzB9T
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install
true
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offline_keylogger
true
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persistence
false
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reg_key
DarkComet RAT
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
Processes:
fa77365a2b757aa8e3c0dea845aeb2e0ac77ab0f6138c140fd165da72ebbf098.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\Documents\\DCSCMIN\\IMDCSC.exe" fa77365a2b757aa8e3c0dea845aeb2e0ac77ab0f6138c140fd165da72ebbf098.exe -
Executes dropped EXE 1 IoCs
Processes:
IMDCSC.exepid process 1164 IMDCSC.exe -
Loads dropped DLL 2 IoCs
Processes:
fa77365a2b757aa8e3c0dea845aeb2e0ac77ab0f6138c140fd165da72ebbf098.exepid process 736 fa77365a2b757aa8e3c0dea845aeb2e0ac77ab0f6138c140fd165da72ebbf098.exe 736 fa77365a2b757aa8e3c0dea845aeb2e0ac77ab0f6138c140fd165da72ebbf098.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
fa77365a2b757aa8e3c0dea845aeb2e0ac77ab0f6138c140fd165da72ebbf098.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\DarkComet RAT = "C:\\Users\\Admin\\Documents\\DCSCMIN\\IMDCSC.exe" fa77365a2b757aa8e3c0dea845aeb2e0ac77ab0f6138c140fd165da72ebbf098.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 46 IoCs
Processes:
fa77365a2b757aa8e3c0dea845aeb2e0ac77ab0f6138c140fd165da72ebbf098.exeIMDCSC.exedescription pid process Token: SeIncreaseQuotaPrivilege 736 fa77365a2b757aa8e3c0dea845aeb2e0ac77ab0f6138c140fd165da72ebbf098.exe Token: SeSecurityPrivilege 736 fa77365a2b757aa8e3c0dea845aeb2e0ac77ab0f6138c140fd165da72ebbf098.exe Token: SeTakeOwnershipPrivilege 736 fa77365a2b757aa8e3c0dea845aeb2e0ac77ab0f6138c140fd165da72ebbf098.exe Token: SeLoadDriverPrivilege 736 fa77365a2b757aa8e3c0dea845aeb2e0ac77ab0f6138c140fd165da72ebbf098.exe Token: SeSystemProfilePrivilege 736 fa77365a2b757aa8e3c0dea845aeb2e0ac77ab0f6138c140fd165da72ebbf098.exe Token: SeSystemtimePrivilege 736 fa77365a2b757aa8e3c0dea845aeb2e0ac77ab0f6138c140fd165da72ebbf098.exe Token: SeProfSingleProcessPrivilege 736 fa77365a2b757aa8e3c0dea845aeb2e0ac77ab0f6138c140fd165da72ebbf098.exe Token: SeIncBasePriorityPrivilege 736 fa77365a2b757aa8e3c0dea845aeb2e0ac77ab0f6138c140fd165da72ebbf098.exe Token: SeCreatePagefilePrivilege 736 fa77365a2b757aa8e3c0dea845aeb2e0ac77ab0f6138c140fd165da72ebbf098.exe Token: SeBackupPrivilege 736 fa77365a2b757aa8e3c0dea845aeb2e0ac77ab0f6138c140fd165da72ebbf098.exe Token: SeRestorePrivilege 736 fa77365a2b757aa8e3c0dea845aeb2e0ac77ab0f6138c140fd165da72ebbf098.exe Token: SeShutdownPrivilege 736 fa77365a2b757aa8e3c0dea845aeb2e0ac77ab0f6138c140fd165da72ebbf098.exe Token: SeDebugPrivilege 736 fa77365a2b757aa8e3c0dea845aeb2e0ac77ab0f6138c140fd165da72ebbf098.exe Token: SeSystemEnvironmentPrivilege 736 fa77365a2b757aa8e3c0dea845aeb2e0ac77ab0f6138c140fd165da72ebbf098.exe Token: SeChangeNotifyPrivilege 736 fa77365a2b757aa8e3c0dea845aeb2e0ac77ab0f6138c140fd165da72ebbf098.exe Token: SeRemoteShutdownPrivilege 736 fa77365a2b757aa8e3c0dea845aeb2e0ac77ab0f6138c140fd165da72ebbf098.exe Token: SeUndockPrivilege 736 fa77365a2b757aa8e3c0dea845aeb2e0ac77ab0f6138c140fd165da72ebbf098.exe Token: SeManageVolumePrivilege 736 fa77365a2b757aa8e3c0dea845aeb2e0ac77ab0f6138c140fd165da72ebbf098.exe Token: SeImpersonatePrivilege 736 fa77365a2b757aa8e3c0dea845aeb2e0ac77ab0f6138c140fd165da72ebbf098.exe Token: SeCreateGlobalPrivilege 736 fa77365a2b757aa8e3c0dea845aeb2e0ac77ab0f6138c140fd165da72ebbf098.exe Token: 33 736 fa77365a2b757aa8e3c0dea845aeb2e0ac77ab0f6138c140fd165da72ebbf098.exe Token: 34 736 fa77365a2b757aa8e3c0dea845aeb2e0ac77ab0f6138c140fd165da72ebbf098.exe Token: 35 736 fa77365a2b757aa8e3c0dea845aeb2e0ac77ab0f6138c140fd165da72ebbf098.exe Token: SeIncreaseQuotaPrivilege 1164 IMDCSC.exe Token: SeSecurityPrivilege 1164 IMDCSC.exe Token: SeTakeOwnershipPrivilege 1164 IMDCSC.exe Token: SeLoadDriverPrivilege 1164 IMDCSC.exe Token: SeSystemProfilePrivilege 1164 IMDCSC.exe Token: SeSystemtimePrivilege 1164 IMDCSC.exe Token: SeProfSingleProcessPrivilege 1164 IMDCSC.exe Token: SeIncBasePriorityPrivilege 1164 IMDCSC.exe Token: SeCreatePagefilePrivilege 1164 IMDCSC.exe Token: SeBackupPrivilege 1164 IMDCSC.exe Token: SeRestorePrivilege 1164 IMDCSC.exe Token: SeShutdownPrivilege 1164 IMDCSC.exe Token: SeDebugPrivilege 1164 IMDCSC.exe Token: SeSystemEnvironmentPrivilege 1164 IMDCSC.exe Token: SeChangeNotifyPrivilege 1164 IMDCSC.exe Token: SeRemoteShutdownPrivilege 1164 IMDCSC.exe Token: SeUndockPrivilege 1164 IMDCSC.exe Token: SeManageVolumePrivilege 1164 IMDCSC.exe Token: SeImpersonatePrivilege 1164 IMDCSC.exe Token: SeCreateGlobalPrivilege 1164 IMDCSC.exe Token: 33 1164 IMDCSC.exe Token: 34 1164 IMDCSC.exe Token: 35 1164 IMDCSC.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
IMDCSC.exepid process 1164 IMDCSC.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
fa77365a2b757aa8e3c0dea845aeb2e0ac77ab0f6138c140fd165da72ebbf098.exedescription pid process target process PID 736 wrote to memory of 1164 736 fa77365a2b757aa8e3c0dea845aeb2e0ac77ab0f6138c140fd165da72ebbf098.exe IMDCSC.exe PID 736 wrote to memory of 1164 736 fa77365a2b757aa8e3c0dea845aeb2e0ac77ab0f6138c140fd165da72ebbf098.exe IMDCSC.exe PID 736 wrote to memory of 1164 736 fa77365a2b757aa8e3c0dea845aeb2e0ac77ab0f6138c140fd165da72ebbf098.exe IMDCSC.exe PID 736 wrote to memory of 1164 736 fa77365a2b757aa8e3c0dea845aeb2e0ac77ab0f6138c140fd165da72ebbf098.exe IMDCSC.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\fa77365a2b757aa8e3c0dea845aeb2e0ac77ab0f6138c140fd165da72ebbf098.exe"C:\Users\Admin\AppData\Local\Temp\fa77365a2b757aa8e3c0dea845aeb2e0ac77ab0f6138c140fd165da72ebbf098.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:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe"C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe"2⤵
- Executes dropped EXE
- 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\Documents\DCSCMIN\IMDCSC.exeMD5
d3d964677264a3cb1c7a6a4e507f513d
SHA15a725d084eb47e796fba25498095be7c0f49061b
SHA256fa77365a2b757aa8e3c0dea845aeb2e0ac77ab0f6138c140fd165da72ebbf098
SHA51287c8100ef3973bda93d327ba90563d9b99fd808bbdfa1b6008b4bf28fd410835141b85016a7eac50133f5c590a5bfceb5e3a702d0b463d6a2b09ade26687c6a6
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C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exeMD5
d3d964677264a3cb1c7a6a4e507f513d
SHA15a725d084eb47e796fba25498095be7c0f49061b
SHA256fa77365a2b757aa8e3c0dea845aeb2e0ac77ab0f6138c140fd165da72ebbf098
SHA51287c8100ef3973bda93d327ba90563d9b99fd808bbdfa1b6008b4bf28fd410835141b85016a7eac50133f5c590a5bfceb5e3a702d0b463d6a2b09ade26687c6a6
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\Users\Admin\Documents\DCSCMIN\IMDCSC.exeMD5
d3d964677264a3cb1c7a6a4e507f513d
SHA15a725d084eb47e796fba25498095be7c0f49061b
SHA256fa77365a2b757aa8e3c0dea845aeb2e0ac77ab0f6138c140fd165da72ebbf098
SHA51287c8100ef3973bda93d327ba90563d9b99fd808bbdfa1b6008b4bf28fd410835141b85016a7eac50133f5c590a5bfceb5e3a702d0b463d6a2b09ade26687c6a6
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\Users\Admin\Documents\DCSCMIN\IMDCSC.exeMD5
d3d964677264a3cb1c7a6a4e507f513d
SHA15a725d084eb47e796fba25498095be7c0f49061b
SHA256fa77365a2b757aa8e3c0dea845aeb2e0ac77ab0f6138c140fd165da72ebbf098
SHA51287c8100ef3973bda93d327ba90563d9b99fd808bbdfa1b6008b4bf28fd410835141b85016a7eac50133f5c590a5bfceb5e3a702d0b463d6a2b09ade26687c6a6
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memory/736-59-0x0000000075891000-0x0000000075893000-memory.dmpFilesize
8KB
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memory/736-60-0x0000000000240000-0x0000000000241000-memory.dmpFilesize
4KB
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memory/1164-63-0x0000000000000000-mapping.dmp
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memory/1164-67-0x0000000000240000-0x0000000000241000-memory.dmpFilesize
4KB