Analysis
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max time kernel
152s -
max time network
156s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-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-1-5-21-3808065738-1666277613-1125846146-1000\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 1188 attrib.exe 4264 attrib.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
AzoteClient.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation AzoteClient.exe -
Deletes itself 1 IoCs
Processes:
notepad.exepid Process 1996 notepad.exe -
Executes dropped EXE 1 IoCs
Processes:
msdcsc.exepid Process 3148 msdcsc.exe -
Processes:
resource yara_rule behavioral2/memory/864-0-0x0000000000400000-0x00000000004E8000-memory.dmp upx behavioral2/files/0x0008000000023264-7.dat upx behavioral2/memory/3148-64-0x0000000000400000-0x00000000004E8000-memory.dmp upx behavioral2/memory/864-67-0x0000000000400000-0x00000000004E8000-memory.dmp upx behavioral2/memory/3148-69-0x0000000000400000-0x00000000004E8000-memory.dmp upx behavioral2/memory/3148-70-0x0000000000400000-0x00000000004E8000-memory.dmp upx behavioral2/memory/3148-73-0x0000000000400000-0x00000000004E8000-memory.dmp upx behavioral2/memory/3148-75-0x0000000000400000-0x00000000004E8000-memory.dmp upx behavioral2/memory/3148-77-0x0000000000400000-0x00000000004E8000-memory.dmp upx behavioral2/memory/3148-79-0x0000000000400000-0x00000000004E8000-memory.dmp upx behavioral2/memory/3148-81-0x0000000000400000-0x00000000004E8000-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-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" AzoteClient.exe Set value (str) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\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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Modifies registry class 1 IoCs
Processes:
AzoteClient.exedescription ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ AzoteClient.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
msdcsc.exepid Process 3148 msdcsc.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
Processes:
AzoteClient.exemsdcsc.exedescription pid Process Token: SeIncreaseQuotaPrivilege 864 AzoteClient.exe Token: SeSecurityPrivilege 864 AzoteClient.exe Token: SeTakeOwnershipPrivilege 864 AzoteClient.exe Token: SeLoadDriverPrivilege 864 AzoteClient.exe Token: SeSystemProfilePrivilege 864 AzoteClient.exe Token: SeSystemtimePrivilege 864 AzoteClient.exe Token: SeProfSingleProcessPrivilege 864 AzoteClient.exe Token: SeIncBasePriorityPrivilege 864 AzoteClient.exe Token: SeCreatePagefilePrivilege 864 AzoteClient.exe Token: SeBackupPrivilege 864 AzoteClient.exe Token: SeRestorePrivilege 864 AzoteClient.exe Token: SeShutdownPrivilege 864 AzoteClient.exe Token: SeDebugPrivilege 864 AzoteClient.exe Token: SeSystemEnvironmentPrivilege 864 AzoteClient.exe Token: SeChangeNotifyPrivilege 864 AzoteClient.exe Token: SeRemoteShutdownPrivilege 864 AzoteClient.exe Token: SeUndockPrivilege 864 AzoteClient.exe Token: SeManageVolumePrivilege 864 AzoteClient.exe Token: SeImpersonatePrivilege 864 AzoteClient.exe Token: SeCreateGlobalPrivilege 864 AzoteClient.exe Token: 33 864 AzoteClient.exe Token: 34 864 AzoteClient.exe Token: 35 864 AzoteClient.exe Token: 36 864 AzoteClient.exe Token: SeIncreaseQuotaPrivilege 3148 msdcsc.exe Token: SeSecurityPrivilege 3148 msdcsc.exe Token: SeTakeOwnershipPrivilege 3148 msdcsc.exe Token: SeLoadDriverPrivilege 3148 msdcsc.exe Token: SeSystemProfilePrivilege 3148 msdcsc.exe Token: SeSystemtimePrivilege 3148 msdcsc.exe Token: SeProfSingleProcessPrivilege 3148 msdcsc.exe Token: SeIncBasePriorityPrivilege 3148 msdcsc.exe Token: SeCreatePagefilePrivilege 3148 msdcsc.exe Token: SeBackupPrivilege 3148 msdcsc.exe Token: SeRestorePrivilege 3148 msdcsc.exe Token: SeShutdownPrivilege 3148 msdcsc.exe Token: SeDebugPrivilege 3148 msdcsc.exe Token: SeSystemEnvironmentPrivilege 3148 msdcsc.exe Token: SeChangeNotifyPrivilege 3148 msdcsc.exe Token: SeRemoteShutdownPrivilege 3148 msdcsc.exe Token: SeUndockPrivilege 3148 msdcsc.exe Token: SeManageVolumePrivilege 3148 msdcsc.exe Token: SeImpersonatePrivilege 3148 msdcsc.exe Token: SeCreateGlobalPrivilege 3148 msdcsc.exe Token: 33 3148 msdcsc.exe Token: 34 3148 msdcsc.exe Token: 35 3148 msdcsc.exe Token: 36 3148 msdcsc.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
msdcsc.exepid Process 3148 msdcsc.exe -
Suspicious use of WriteProcessMemory 59 IoCs
Processes:
AzoteClient.execmd.execmd.exemsdcsc.exedescription pid Process procid_target PID 864 wrote to memory of 4328 864 AzoteClient.exe 89 PID 864 wrote to memory of 4328 864 AzoteClient.exe 89 PID 864 wrote to memory of 4328 864 AzoteClient.exe 89 PID 864 wrote to memory of 2372 864 AzoteClient.exe 90 PID 864 wrote to memory of 2372 864 AzoteClient.exe 90 PID 864 wrote to memory of 2372 864 AzoteClient.exe 90 PID 864 wrote to memory of 1996 864 AzoteClient.exe 93 PID 864 wrote to memory of 1996 864 AzoteClient.exe 93 PID 864 wrote to memory of 1996 864 AzoteClient.exe 93 PID 864 wrote to memory of 1996 864 AzoteClient.exe 93 PID 864 wrote to memory of 1996 864 AzoteClient.exe 93 PID 864 wrote to memory of 1996 864 AzoteClient.exe 93 PID 864 wrote to memory of 1996 864 AzoteClient.exe 93 PID 864 wrote to memory of 1996 864 AzoteClient.exe 93 PID 864 wrote to memory of 1996 864 AzoteClient.exe 93 PID 864 wrote to memory of 1996 864 AzoteClient.exe 93 PID 864 wrote to memory of 1996 864 AzoteClient.exe 93 PID 864 wrote to memory of 1996 864 AzoteClient.exe 93 PID 864 wrote to memory of 1996 864 AzoteClient.exe 93 PID 864 wrote to memory of 1996 864 AzoteClient.exe 93 PID 864 wrote to memory of 1996 864 AzoteClient.exe 93 PID 864 wrote to memory of 1996 864 AzoteClient.exe 93 PID 864 wrote to memory of 1996 864 AzoteClient.exe 93 PID 4328 wrote to memory of 1188 4328 cmd.exe 94 PID 4328 wrote to memory of 1188 4328 cmd.exe 94 PID 4328 wrote to memory of 1188 4328 cmd.exe 94 PID 2372 wrote to memory of 4264 2372 cmd.exe 95 PID 2372 wrote to memory of 4264 2372 cmd.exe 95 PID 2372 wrote to memory of 4264 2372 cmd.exe 95 PID 864 wrote to memory of 3148 864 AzoteClient.exe 96 PID 864 wrote to memory of 3148 864 AzoteClient.exe 96 PID 864 wrote to memory of 3148 864 AzoteClient.exe 96 PID 3148 wrote to memory of 2236 3148 msdcsc.exe 97 PID 3148 wrote to memory of 2236 3148 msdcsc.exe 97 PID 3148 wrote to memory of 2236 3148 msdcsc.exe 97 PID 3148 wrote to memory of 2788 3148 msdcsc.exe 98 PID 3148 wrote to memory of 2788 3148 msdcsc.exe 98 PID 3148 wrote to memory of 2060 3148 msdcsc.exe 99 PID 3148 wrote to memory of 2060 3148 msdcsc.exe 99 PID 3148 wrote to memory of 2060 3148 msdcsc.exe 99 PID 3148 wrote to memory of 2060 3148 msdcsc.exe 99 PID 3148 wrote to memory of 2060 3148 msdcsc.exe 99 PID 3148 wrote to memory of 2060 3148 msdcsc.exe 99 PID 3148 wrote to memory of 2060 3148 msdcsc.exe 99 PID 3148 wrote to memory of 2060 3148 msdcsc.exe 99 PID 3148 wrote to memory of 2060 3148 msdcsc.exe 99 PID 3148 wrote to memory of 2060 3148 msdcsc.exe 99 PID 3148 wrote to memory of 2060 3148 msdcsc.exe 99 PID 3148 wrote to memory of 2060 3148 msdcsc.exe 99 PID 3148 wrote to memory of 2060 3148 msdcsc.exe 99 PID 3148 wrote to memory of 2060 3148 msdcsc.exe 99 PID 3148 wrote to memory of 2060 3148 msdcsc.exe 99 PID 3148 wrote to memory of 2060 3148 msdcsc.exe 99 PID 3148 wrote to memory of 2060 3148 msdcsc.exe 99 PID 3148 wrote to memory of 2060 3148 msdcsc.exe 99 PID 3148 wrote to memory of 2060 3148 msdcsc.exe 99 PID 3148 wrote to memory of 2060 3148 msdcsc.exe 99 PID 3148 wrote to memory of 2060 3148 msdcsc.exe 99 PID 3148 wrote to memory of 2060 3148 msdcsc.exe 99 -
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 1188 attrib.exe 4264 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
- Checks computer location settings
- Adds Run key to start application
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:864 -
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:4328 -
C:\Windows\SysWOW64\attrib.exeattrib "C:\Users\Admin\AppData\Local\Temp\AzoteClient.exe" +s +h3⤵
- Sets file to hidden
- Views/modifies file attributes
PID:1188
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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:2372 -
C:\Windows\SysWOW64\attrib.exeattrib "C:\Users\Admin\AppData\Local\Temp" +s +h3⤵
- Sets file to hidden
- Views/modifies file attributes
PID:4264
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C:\Windows\SysWOW64\notepad.exenotepad2⤵
- Deletes itself
PID:1996
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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:3148 -
C:\Program Files (x86)\Internet Explorer\iexplore.exe"C:\Program Files (x86)\Internet Explorer\iexplore.exe"3⤵PID:2236
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C:\Windows\explorer.exe"C:\Windows\explorer.exe"3⤵PID:2788
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C:\Windows\SysWOW64\notepad.exenotepad3⤵PID:2060
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3804 --field-trial-handle=2264,i,15001568551143786084,90255922961447677,262144 --variations-seed-version /prefetch:81⤵PID:1708
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