Analysis
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max time kernel
149s -
max time network
139s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
15-04-2024 22:40
Behavioral task
behavioral1
Sample
AzoteClient.exe
Resource
win7-20240221-en
windows7-x64
21 signatures
150 seconds
Behavioral task
behavioral2
Sample
AzoteClient.exe
Resource
win10v2004-20240226-en
windows10-2004-x64
22 signatures
150 seconds
Behavioral task
behavioral3
Sample
out.exe
Resource
win7-20240221-en
windows7-x64
2 signatures
150 seconds
Behavioral task
behavioral4
Sample
out.exe
Resource
win10v2004-20240412-en
windows10-2004-x64
1 signatures
150 seconds
General
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Target
AzoteClient.exe
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Size
349KB
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MD5
c308d8df761a527ac0c103b8afbc2659
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SHA1
1e3da7a643041aae30fb6a35c6960cae7e25ac83
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SHA256
cbda73ebcf4af6763dded20544a0658366740bbaf9791baf177391514498072b
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SHA512
5a3a2f1f7f747f48631d58ad02599cfcdb71f27fddafebb7d1e5e84fd21ae98c56f6e69d560272cbb72617f3fa2ea4c71fc517c6beedd61fcd74665c98d9202d
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SSDEEP
6144:ZcNYS996KFifeVjBpeExgVTFSXFoMc5RhCaL37PFEZMA2ZChoJNrO:ZcW7KEZlPzCy37Pw2ZChoJNr
Malware Config
Extracted
Family
darkcomet
Botnet
Guest16
C2
maxcouille.zapto.org:1604
Mutex
DC_MUTEX-0P7P1F4
Attributes
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InstallPath
MSDCSC\msdcsc.exe
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gencode
oVS2Vy0Tib9G
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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:
AzoteClient.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" AzoteClient.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 -
Processes:
msdcsc.exedescription ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" msdcsc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" msdcsc.exe -
Disables RegEdit via registry modification 1 IoCs
Processes:
msdcsc.exedescription ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" msdcsc.exe -
Disables Task Manager via registry modification
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Sets file to hidden 1 TTPs 2 IoCs
Modifies file attributes to stop it showing in Explorer etc.
Processes:
attrib.exeattrib.exepid Process 2636 attrib.exe 2652 attrib.exe -
Deletes itself 1 IoCs
Processes:
notepad.exepid Process 3020 notepad.exe -
Executes dropped EXE 1 IoCs
Processes:
msdcsc.exepid Process 2444 msdcsc.exe -
Loads dropped DLL 2 IoCs
Processes:
AzoteClient.exepid Process 2212 AzoteClient.exe 2212 AzoteClient.exe -
Processes:
resource yara_rule behavioral1/memory/2212-0-0x0000000000400000-0x00000000004E8000-memory.dmp upx behavioral1/files/0x000d00000001269e-30.dat upx behavioral1/memory/2444-39-0x0000000000400000-0x00000000004E8000-memory.dmp upx behavioral1/memory/2212-74-0x0000000000400000-0x00000000004E8000-memory.dmp upx behavioral1/memory/2444-76-0x0000000000400000-0x00000000004E8000-memory.dmp upx behavioral1/memory/2444-79-0x0000000000400000-0x00000000004E8000-memory.dmp upx behavioral1/memory/2444-81-0x0000000000400000-0x00000000004E8000-memory.dmp upx -
Processes:
msdcsc.exedescription ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" msdcsc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" msdcsc.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
AzoteClient.exemsdcsc.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" AzoteClient.exe Set value (str) \REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\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).
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
msdcsc.exepid Process 2444 msdcsc.exe -
Suspicious use of AdjustPrivilegeToken 46 IoCs
Processes:
AzoteClient.exemsdcsc.exedescription pid Process Token: SeIncreaseQuotaPrivilege 2212 AzoteClient.exe Token: SeSecurityPrivilege 2212 AzoteClient.exe Token: SeTakeOwnershipPrivilege 2212 AzoteClient.exe Token: SeLoadDriverPrivilege 2212 AzoteClient.exe Token: SeSystemProfilePrivilege 2212 AzoteClient.exe Token: SeSystemtimePrivilege 2212 AzoteClient.exe Token: SeProfSingleProcessPrivilege 2212 AzoteClient.exe Token: SeIncBasePriorityPrivilege 2212 AzoteClient.exe Token: SeCreatePagefilePrivilege 2212 AzoteClient.exe Token: SeBackupPrivilege 2212 AzoteClient.exe Token: SeRestorePrivilege 2212 AzoteClient.exe Token: SeShutdownPrivilege 2212 AzoteClient.exe Token: SeDebugPrivilege 2212 AzoteClient.exe Token: SeSystemEnvironmentPrivilege 2212 AzoteClient.exe Token: SeChangeNotifyPrivilege 2212 AzoteClient.exe Token: SeRemoteShutdownPrivilege 2212 AzoteClient.exe Token: SeUndockPrivilege 2212 AzoteClient.exe Token: SeManageVolumePrivilege 2212 AzoteClient.exe Token: SeImpersonatePrivilege 2212 AzoteClient.exe Token: SeCreateGlobalPrivilege 2212 AzoteClient.exe Token: 33 2212 AzoteClient.exe Token: 34 2212 AzoteClient.exe Token: 35 2212 AzoteClient.exe Token: SeIncreaseQuotaPrivilege 2444 msdcsc.exe Token: SeSecurityPrivilege 2444 msdcsc.exe Token: SeTakeOwnershipPrivilege 2444 msdcsc.exe Token: SeLoadDriverPrivilege 2444 msdcsc.exe Token: SeSystemProfilePrivilege 2444 msdcsc.exe Token: SeSystemtimePrivilege 2444 msdcsc.exe Token: SeProfSingleProcessPrivilege 2444 msdcsc.exe Token: SeIncBasePriorityPrivilege 2444 msdcsc.exe Token: SeCreatePagefilePrivilege 2444 msdcsc.exe Token: SeBackupPrivilege 2444 msdcsc.exe Token: SeRestorePrivilege 2444 msdcsc.exe Token: SeShutdownPrivilege 2444 msdcsc.exe Token: SeDebugPrivilege 2444 msdcsc.exe Token: SeSystemEnvironmentPrivilege 2444 msdcsc.exe Token: SeChangeNotifyPrivilege 2444 msdcsc.exe Token: SeRemoteShutdownPrivilege 2444 msdcsc.exe Token: SeUndockPrivilege 2444 msdcsc.exe Token: SeManageVolumePrivilege 2444 msdcsc.exe Token: SeImpersonatePrivilege 2444 msdcsc.exe Token: SeCreateGlobalPrivilege 2444 msdcsc.exe Token: 33 2444 msdcsc.exe Token: 34 2444 msdcsc.exe Token: 35 2444 msdcsc.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
msdcsc.exepid Process 2444 msdcsc.exe -
Suspicious use of WriteProcessMemory 64 IoCs
Processes:
AzoteClient.execmd.execmd.exemsdcsc.exedescription pid Process procid_target PID 2212 wrote to memory of 2740 2212 AzoteClient.exe 28 PID 2212 wrote to memory of 2740 2212 AzoteClient.exe 28 PID 2212 wrote to memory of 2740 2212 AzoteClient.exe 28 PID 2212 wrote to memory of 2740 2212 AzoteClient.exe 28 PID 2212 wrote to memory of 2308 2212 AzoteClient.exe 30 PID 2212 wrote to memory of 2308 2212 AzoteClient.exe 30 PID 2212 wrote to memory of 2308 2212 AzoteClient.exe 30 PID 2212 wrote to memory of 2308 2212 AzoteClient.exe 30 PID 2212 wrote to memory of 3020 2212 AzoteClient.exe 32 PID 2212 wrote to memory of 3020 2212 AzoteClient.exe 32 PID 2212 wrote to memory of 3020 2212 AzoteClient.exe 32 PID 2212 wrote to memory of 3020 2212 AzoteClient.exe 32 PID 2212 wrote to memory of 3020 2212 AzoteClient.exe 32 PID 2308 wrote to memory of 2652 2308 cmd.exe 34 PID 2308 wrote to memory of 2652 2308 cmd.exe 34 PID 2308 wrote to memory of 2652 2308 cmd.exe 34 PID 2308 wrote to memory of 2652 2308 cmd.exe 34 PID 2740 wrote to memory of 2636 2740 cmd.exe 33 PID 2740 wrote to memory of 2636 2740 cmd.exe 33 PID 2740 wrote to memory of 2636 2740 cmd.exe 33 PID 2740 wrote to memory of 2636 2740 cmd.exe 33 PID 2212 wrote to memory of 3020 2212 AzoteClient.exe 32 PID 2212 wrote to memory of 3020 2212 AzoteClient.exe 32 PID 2212 wrote to memory of 3020 2212 AzoteClient.exe 32 PID 2212 wrote to memory of 3020 2212 AzoteClient.exe 32 PID 2212 wrote to memory of 3020 2212 AzoteClient.exe 32 PID 2212 wrote to memory of 3020 2212 AzoteClient.exe 32 PID 2212 wrote to memory of 3020 2212 AzoteClient.exe 32 PID 2212 wrote to memory of 3020 2212 AzoteClient.exe 32 PID 2212 wrote to memory of 3020 2212 AzoteClient.exe 32 PID 2212 wrote to memory of 3020 2212 AzoteClient.exe 32 PID 2212 wrote to memory of 3020 2212 AzoteClient.exe 32 PID 2212 wrote to memory of 3020 2212 AzoteClient.exe 32 PID 2212 wrote to memory of 3020 2212 AzoteClient.exe 32 PID 2212 wrote to memory of 2444 2212 AzoteClient.exe 35 PID 2212 wrote to memory of 2444 2212 AzoteClient.exe 35 PID 2212 wrote to memory of 2444 2212 AzoteClient.exe 35 PID 2212 wrote to memory of 2444 2212 AzoteClient.exe 35 PID 2444 wrote to memory of 2092 2444 msdcsc.exe 36 PID 2444 wrote to memory of 2092 2444 msdcsc.exe 36 PID 2444 wrote to memory of 2092 2444 msdcsc.exe 36 PID 2444 wrote to memory of 2092 2444 msdcsc.exe 36 PID 2444 wrote to memory of 1708 2444 msdcsc.exe 37 PID 2444 wrote to memory of 1708 2444 msdcsc.exe 37 PID 2444 wrote to memory of 1708 2444 msdcsc.exe 37 PID 2444 wrote to memory of 1708 2444 msdcsc.exe 37 PID 2444 wrote to memory of 2912 2444 msdcsc.exe 38 PID 2444 wrote to memory of 2912 2444 msdcsc.exe 38 PID 2444 wrote to memory of 2912 2444 msdcsc.exe 38 PID 2444 wrote to memory of 2912 2444 msdcsc.exe 38 PID 2444 wrote to memory of 2912 2444 msdcsc.exe 38 PID 2444 wrote to memory of 2912 2444 msdcsc.exe 38 PID 2444 wrote to memory of 2912 2444 msdcsc.exe 38 PID 2444 wrote to memory of 2912 2444 msdcsc.exe 38 PID 2444 wrote to memory of 2912 2444 msdcsc.exe 38 PID 2444 wrote to memory of 2912 2444 msdcsc.exe 38 PID 2444 wrote to memory of 2912 2444 msdcsc.exe 38 PID 2444 wrote to memory of 2912 2444 msdcsc.exe 38 PID 2444 wrote to memory of 2912 2444 msdcsc.exe 38 PID 2444 wrote to memory of 2912 2444 msdcsc.exe 38 PID 2444 wrote to memory of 2912 2444 msdcsc.exe 38 PID 2444 wrote to memory of 2912 2444 msdcsc.exe 38 PID 2444 wrote to memory of 2912 2444 msdcsc.exe 38 PID 2444 wrote to memory of 2912 2444 msdcsc.exe 38 -
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 -
Views/modifies file attributes 1 TTPs 2 IoCs
Processes:
attrib.exeattrib.exepid Process 2636 attrib.exe 2652 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\AzoteClient.exe"C:\Users\Admin\AppData\Local\Temp\AzoteClient.exe"1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2212 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\AzoteClient.exe" +s +h2⤵
- Suspicious use of WriteProcessMemory
PID:2740 -
C:\Windows\SysWOW64\attrib.exeattrib "C:\Users\Admin\AppData\Local\Temp\AzoteClient.exe" +s +h3⤵
- Sets file to hidden
- Views/modifies file attributes
PID:2636
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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
PID:2308 -
C:\Windows\SysWOW64\attrib.exeattrib "C:\Users\Admin\AppData\Local\Temp" +s +h3⤵
- Sets file to hidden
- Views/modifies file attributes
PID:2652
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C:\Windows\SysWOW64\notepad.exenotepad2⤵
- Deletes itself
PID:3020
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C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"C:\Users\Admin\Documents\MSDCSC\msdcsc.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:2444 -
C:\Program Files (x86)\Internet Explorer\iexplore.exe"C:\Program Files (x86)\Internet Explorer\iexplore.exe"3⤵PID:2092
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C:\Windows\explorer.exe"C:\Windows\explorer.exe"3⤵PID:1708
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C:\Windows\SysWOW64\notepad.exenotepad3⤵PID:2912
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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
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Downloads
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Filesize
349KB
MD5c308d8df761a527ac0c103b8afbc2659
SHA11e3da7a643041aae30fb6a35c6960cae7e25ac83
SHA256cbda73ebcf4af6763dded20544a0658366740bbaf9791baf177391514498072b
SHA5125a3a2f1f7f747f48631d58ad02599cfcdb71f27fddafebb7d1e5e84fd21ae98c56f6e69d560272cbb72617f3fa2ea4c71fc517c6beedd61fcd74665c98d9202d