Analysis
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max time kernel
150s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20240220-en -
resource tags
arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system -
submitted
13-04-2024 18:45
Behavioral task
behavioral1
Sample
1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exe
Resource
win7-20240220-en
General
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Target
1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exe
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Size
283KB
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MD5
dd58cddd601ba0d1d7fc157136a8a1c5
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SHA1
344292fb97107016fb925d93ff81cea9a7e92493
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SHA256
1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52
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SHA512
111e77ca531c6c5ccbb4d27308a4209014b9503a220e1e0b48bb63cde0200013a03963ebaa6e63bb0957e4038c5709e4017228934f74a16e1f3517381257a872
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SSDEEP
6144:7cNYk1yuwEDBum3qYWnl0pd0EX3Zq2b6wfIDYm0P0GT:7cWkbgTYWnYnt/IDYhP0GT
Malware Config
Extracted
darkcomet
220
strateg.ddns.net:220
DC_MUTEX-17TCUZ8
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InstallPath
MSDCSC\explorer.exe
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gencode
ECU92camneaf
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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:
1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.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\\explorer.exe" 1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exe -
Modifies firewall policy service 2 TTPs 3 IoCs
Processes:
explorer.exedescription ioc process Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile explorer.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0" explorer.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0" explorer.exe -
Modifies security service 2 TTPs 1 IoCs
Processes:
explorer.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wscsvc\Start = "4" explorer.exe -
Processes:
explorer.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" explorer.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" explorer.exe -
UPX dump on OEP (original entry point) 20 IoCs
Processes:
resource yara_rule behavioral1/memory/1028-0-0x0000000000400000-0x00000000004C7000-memory.dmp UPX \Users\Admin\Documents\MSDCSC\explorer.exe UPX behavioral1/memory/2476-14-0x0000000000400000-0x00000000004C7000-memory.dmp UPX behavioral1/memory/1028-12-0x00000000040E0000-0x00000000041A7000-memory.dmp UPX behavioral1/memory/1028-51-0x0000000000400000-0x00000000004C7000-memory.dmp UPX behavioral1/memory/2476-52-0x0000000000400000-0x00000000004C7000-memory.dmp UPX behavioral1/memory/2476-53-0x0000000000400000-0x00000000004C7000-memory.dmp UPX behavioral1/memory/2476-54-0x0000000000400000-0x00000000004C7000-memory.dmp UPX behavioral1/memory/2476-55-0x0000000000400000-0x00000000004C7000-memory.dmp UPX behavioral1/memory/2476-56-0x0000000000400000-0x00000000004C7000-memory.dmp UPX behavioral1/memory/2476-57-0x0000000000400000-0x00000000004C7000-memory.dmp UPX behavioral1/memory/2476-58-0x0000000000400000-0x00000000004C7000-memory.dmp UPX behavioral1/memory/2476-59-0x0000000000400000-0x00000000004C7000-memory.dmp UPX behavioral1/memory/2476-60-0x0000000000400000-0x00000000004C7000-memory.dmp UPX behavioral1/memory/2476-61-0x0000000000400000-0x00000000004C7000-memory.dmp UPX behavioral1/memory/2476-62-0x0000000000400000-0x00000000004C7000-memory.dmp UPX behavioral1/memory/2476-63-0x0000000000400000-0x00000000004C7000-memory.dmp UPX behavioral1/memory/2476-64-0x0000000000400000-0x00000000004C7000-memory.dmp UPX behavioral1/memory/2476-65-0x0000000000400000-0x00000000004C7000-memory.dmp UPX behavioral1/memory/2476-66-0x0000000000400000-0x00000000004C7000-memory.dmp UPX -
Disables RegEdit via registry modification 1 IoCs
Processes:
explorer.exedescription ioc process Set value (int) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" explorer.exe -
Sets file to hidden 1 TTPs 2 IoCs
Modifies file attributes to stop it showing in Explorer etc.
Processes:
attrib.exeattrib.exepid process 2656 attrib.exe 2648 attrib.exe -
Executes dropped EXE 1 IoCs
Processes:
explorer.exepid process 2476 explorer.exe -
Loads dropped DLL 2 IoCs
Processes:
1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exepid process 1028 1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exe 1028 1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exe -
Processes:
resource yara_rule behavioral1/memory/1028-0-0x0000000000400000-0x00000000004C7000-memory.dmp upx \Users\Admin\Documents\MSDCSC\explorer.exe upx behavioral1/memory/2476-14-0x0000000000400000-0x00000000004C7000-memory.dmp upx behavioral1/memory/1028-12-0x00000000040E0000-0x00000000041A7000-memory.dmp upx behavioral1/memory/1028-51-0x0000000000400000-0x00000000004C7000-memory.dmp upx behavioral1/memory/2476-52-0x0000000000400000-0x00000000004C7000-memory.dmp upx behavioral1/memory/2476-53-0x0000000000400000-0x00000000004C7000-memory.dmp upx behavioral1/memory/2476-54-0x0000000000400000-0x00000000004C7000-memory.dmp upx behavioral1/memory/2476-55-0x0000000000400000-0x00000000004C7000-memory.dmp upx behavioral1/memory/2476-56-0x0000000000400000-0x00000000004C7000-memory.dmp upx behavioral1/memory/2476-57-0x0000000000400000-0x00000000004C7000-memory.dmp upx behavioral1/memory/2476-58-0x0000000000400000-0x00000000004C7000-memory.dmp upx behavioral1/memory/2476-59-0x0000000000400000-0x00000000004C7000-memory.dmp upx behavioral1/memory/2476-60-0x0000000000400000-0x00000000004C7000-memory.dmp upx behavioral1/memory/2476-61-0x0000000000400000-0x00000000004C7000-memory.dmp upx behavioral1/memory/2476-62-0x0000000000400000-0x00000000004C7000-memory.dmp upx behavioral1/memory/2476-63-0x0000000000400000-0x00000000004C7000-memory.dmp upx behavioral1/memory/2476-64-0x0000000000400000-0x00000000004C7000-memory.dmp upx behavioral1/memory/2476-65-0x0000000000400000-0x00000000004C7000-memory.dmp upx behavioral1/memory/2476-66-0x0000000000400000-0x00000000004C7000-memory.dmp upx -
Processes:
explorer.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" explorer.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" explorer.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exeexplorer.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\explorer.exe" 1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exe Set value (str) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\explorer.exe" explorer.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
explorer.exepid process 2476 explorer.exe -
Suspicious use of AdjustPrivilegeToken 46 IoCs
Processes:
1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exeexplorer.exedescription pid process Token: SeIncreaseQuotaPrivilege 1028 1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exe Token: SeSecurityPrivilege 1028 1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exe Token: SeTakeOwnershipPrivilege 1028 1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exe Token: SeLoadDriverPrivilege 1028 1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exe Token: SeSystemProfilePrivilege 1028 1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exe Token: SeSystemtimePrivilege 1028 1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exe Token: SeProfSingleProcessPrivilege 1028 1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exe Token: SeIncBasePriorityPrivilege 1028 1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exe Token: SeCreatePagefilePrivilege 1028 1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exe Token: SeBackupPrivilege 1028 1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exe Token: SeRestorePrivilege 1028 1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exe Token: SeShutdownPrivilege 1028 1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exe Token: SeDebugPrivilege 1028 1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exe Token: SeSystemEnvironmentPrivilege 1028 1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exe Token: SeChangeNotifyPrivilege 1028 1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exe Token: SeRemoteShutdownPrivilege 1028 1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exe Token: SeUndockPrivilege 1028 1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exe Token: SeManageVolumePrivilege 1028 1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exe Token: SeImpersonatePrivilege 1028 1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exe Token: SeCreateGlobalPrivilege 1028 1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exe Token: 33 1028 1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exe Token: 34 1028 1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exe Token: 35 1028 1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exe Token: SeIncreaseQuotaPrivilege 2476 explorer.exe Token: SeSecurityPrivilege 2476 explorer.exe Token: SeTakeOwnershipPrivilege 2476 explorer.exe Token: SeLoadDriverPrivilege 2476 explorer.exe Token: SeSystemProfilePrivilege 2476 explorer.exe Token: SeSystemtimePrivilege 2476 explorer.exe Token: SeProfSingleProcessPrivilege 2476 explorer.exe Token: SeIncBasePriorityPrivilege 2476 explorer.exe Token: SeCreatePagefilePrivilege 2476 explorer.exe Token: SeBackupPrivilege 2476 explorer.exe Token: SeRestorePrivilege 2476 explorer.exe Token: SeShutdownPrivilege 2476 explorer.exe Token: SeDebugPrivilege 2476 explorer.exe Token: SeSystemEnvironmentPrivilege 2476 explorer.exe Token: SeChangeNotifyPrivilege 2476 explorer.exe Token: SeRemoteShutdownPrivilege 2476 explorer.exe Token: SeUndockPrivilege 2476 explorer.exe Token: SeManageVolumePrivilege 2476 explorer.exe Token: SeImpersonatePrivilege 2476 explorer.exe Token: SeCreateGlobalPrivilege 2476 explorer.exe Token: 33 2476 explorer.exe Token: 34 2476 explorer.exe Token: 35 2476 explorer.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
explorer.exepid process 2476 explorer.exe -
Suspicious use of WriteProcessMemory 43 IoCs
Processes:
1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.execmd.execmd.exeexplorer.exedescription pid process target process PID 1028 wrote to memory of 2512 1028 1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exe cmd.exe PID 1028 wrote to memory of 2512 1028 1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exe cmd.exe PID 1028 wrote to memory of 2512 1028 1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exe cmd.exe PID 1028 wrote to memory of 2512 1028 1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exe cmd.exe PID 1028 wrote to memory of 2520 1028 1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exe cmd.exe PID 1028 wrote to memory of 2520 1028 1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exe cmd.exe PID 1028 wrote to memory of 2520 1028 1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exe cmd.exe PID 1028 wrote to memory of 2520 1028 1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exe cmd.exe PID 2512 wrote to memory of 2648 2512 cmd.exe attrib.exe PID 2512 wrote to memory of 2648 2512 cmd.exe attrib.exe PID 2512 wrote to memory of 2648 2512 cmd.exe attrib.exe PID 2512 wrote to memory of 2648 2512 cmd.exe attrib.exe PID 2520 wrote to memory of 2656 2520 cmd.exe attrib.exe PID 2520 wrote to memory of 2656 2520 cmd.exe attrib.exe PID 2520 wrote to memory of 2656 2520 cmd.exe attrib.exe PID 2520 wrote to memory of 2656 2520 cmd.exe attrib.exe PID 1028 wrote to memory of 2476 1028 1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exe explorer.exe PID 1028 wrote to memory of 2476 1028 1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exe explorer.exe PID 1028 wrote to memory of 2476 1028 1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exe explorer.exe PID 1028 wrote to memory of 2476 1028 1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exe explorer.exe PID 2476 wrote to memory of 2628 2476 explorer.exe notepad.exe PID 2476 wrote to memory of 2628 2476 explorer.exe notepad.exe PID 2476 wrote to memory of 2628 2476 explorer.exe notepad.exe PID 2476 wrote to memory of 2628 2476 explorer.exe notepad.exe PID 2476 wrote to memory of 2628 2476 explorer.exe notepad.exe PID 2476 wrote to memory of 2628 2476 explorer.exe notepad.exe PID 2476 wrote to memory of 2628 2476 explorer.exe notepad.exe PID 2476 wrote to memory of 2628 2476 explorer.exe notepad.exe PID 2476 wrote to memory of 2628 2476 explorer.exe notepad.exe PID 2476 wrote to memory of 2628 2476 explorer.exe notepad.exe PID 2476 wrote to memory of 2628 2476 explorer.exe notepad.exe PID 2476 wrote to memory of 2628 2476 explorer.exe notepad.exe PID 2476 wrote to memory of 2628 2476 explorer.exe notepad.exe PID 2476 wrote to memory of 2628 2476 explorer.exe notepad.exe PID 2476 wrote to memory of 2628 2476 explorer.exe notepad.exe PID 2476 wrote to memory of 2628 2476 explorer.exe notepad.exe PID 2476 wrote to memory of 2628 2476 explorer.exe notepad.exe PID 2476 wrote to memory of 2628 2476 explorer.exe notepad.exe PID 2476 wrote to memory of 2628 2476 explorer.exe notepad.exe PID 2476 wrote to memory of 2628 2476 explorer.exe notepad.exe PID 2476 wrote to memory of 2628 2476 explorer.exe notepad.exe PID 2476 wrote to memory of 2628 2476 explorer.exe notepad.exe PID 2476 wrote to memory of 2628 2476 explorer.exe notepad.exe -
System policy modification 1 TTPs 3 IoCs
Processes:
explorer.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion explorer.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern explorer.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern\NoControlPanel = "1" explorer.exe -
Views/modifies file attributes 1 TTPs 2 IoCs
Processes:
attrib.exeattrib.exepid process 2648 attrib.exe 2656 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exe"C:\Users\Admin\AppData\Local\Temp\1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exe"1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1028 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exe" +s +h2⤵
- Suspicious use of WriteProcessMemory
PID:2512 -
C:\Windows\SysWOW64\attrib.exeattrib "C:\Users\Admin\AppData\Local\Temp\1305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52.exe" +s +h3⤵
- Sets file to hidden
- Views/modifies file attributes
PID:2648 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h2⤵
- Suspicious use of WriteProcessMemory
PID:2520 -
C:\Windows\SysWOW64\attrib.exeattrib "C:\Users\Admin\AppData\Local\Temp" +s +h3⤵
- Sets file to hidden
- Views/modifies file attributes
PID:2656 -
C:\Users\Admin\Documents\MSDCSC\explorer.exe"C:\Users\Admin\Documents\MSDCSC\explorer.exe"2⤵
- Modifies firewall policy service
- Modifies security service
- Windows security bypass
- Disables RegEdit via registry modification
- 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
PID:2476 -
C:\Windows\SysWOW64\notepad.exenotepad3⤵PID:2628
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Create or Modify System Process
2Windows Service
2Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Create or Modify System Process
2Windows Service
2Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
283KB
MD5dd58cddd601ba0d1d7fc157136a8a1c5
SHA1344292fb97107016fb925d93ff81cea9a7e92493
SHA2561305261a64890954599fb2d7578a5b20047ea415d00d5a219f7ae06c21c72a52
SHA512111e77ca531c6c5ccbb4d27308a4209014b9503a220e1e0b48bb63cde0200013a03963ebaa6e63bb0957e4038c5709e4017228934f74a16e1f3517381257a872