Analysis
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max time kernel
150s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system -
submitted
17-04-2024 14:34
Behavioral task
behavioral1
Sample
9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe
Resource
win7-20240319-en
General
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Target
9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe
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Size
659KB
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MD5
21cb738e372351de0abf0f5bc532ab2c
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SHA1
af006c081c76f91866f377059db52576478aab82
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SHA256
9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165
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SHA512
308150556c89f262b74130c0548c134bc1e0ad4e29dd04500e297f53b15988fb3f79cda8a0dafeb225a8ceac1bec5ccfd57a88d02d16dbb82e29d5d703e4cde8
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SSDEEP
12288:O9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hy:aZ1xuVVjfFoynPaVBUR8f+kN10EBA
Malware Config
Extracted
darkcomet
Sazan
sussysdfffdfff343.duckdns.org:1604
DC_MUTEX-TUY24DX
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InstallPath
MSDCSC\msdcsc.exe
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gencode
TPTxFZiBzSR9
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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:
9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.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" 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.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 -
Sets file to hidden 1 TTPs 2 IoCs
Modifies file attributes to stop it showing in Explorer etc.
Processes:
attrib.exeattrib.exepid Process 180 attrib.exe 4892 attrib.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-553605503-2331009851-2137262461-1000\Control Panel\International\Geo\Nation 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe -
Deletes itself 1 IoCs
Processes:
notepad.exepid Process 1952 notepad.exe -
Executes dropped EXE 1 IoCs
Processes:
msdcsc.exepid Process 4240 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 -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exemsdcsc.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-553605503-2331009851-2137262461-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe Set value (str) \REGISTRY\USER\S-1-5-21-553605503-2331009851-2137262461-1000\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:
9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exedescription ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
msdcsc.exepid Process 4240 msdcsc.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
Processes:
9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exemsdcsc.exedescription pid Process Token: SeIncreaseQuotaPrivilege 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe Token: SeSecurityPrivilege 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe Token: SeTakeOwnershipPrivilege 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe Token: SeLoadDriverPrivilege 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe Token: SeSystemProfilePrivilege 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe Token: SeSystemtimePrivilege 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe Token: SeProfSingleProcessPrivilege 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe Token: SeIncBasePriorityPrivilege 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe Token: SeCreatePagefilePrivilege 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe Token: SeBackupPrivilege 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe Token: SeRestorePrivilege 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe Token: SeShutdownPrivilege 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe Token: SeDebugPrivilege 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe Token: SeSystemEnvironmentPrivilege 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe Token: SeChangeNotifyPrivilege 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe Token: SeRemoteShutdownPrivilege 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe Token: SeUndockPrivilege 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe Token: SeManageVolumePrivilege 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe Token: SeImpersonatePrivilege 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe Token: SeCreateGlobalPrivilege 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe Token: 33 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe Token: 34 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe Token: 35 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe Token: 36 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe Token: SeIncreaseQuotaPrivilege 4240 msdcsc.exe Token: SeSecurityPrivilege 4240 msdcsc.exe Token: SeTakeOwnershipPrivilege 4240 msdcsc.exe Token: SeLoadDriverPrivilege 4240 msdcsc.exe Token: SeSystemProfilePrivilege 4240 msdcsc.exe Token: SeSystemtimePrivilege 4240 msdcsc.exe Token: SeProfSingleProcessPrivilege 4240 msdcsc.exe Token: SeIncBasePriorityPrivilege 4240 msdcsc.exe Token: SeCreatePagefilePrivilege 4240 msdcsc.exe Token: SeBackupPrivilege 4240 msdcsc.exe Token: SeRestorePrivilege 4240 msdcsc.exe Token: SeShutdownPrivilege 4240 msdcsc.exe Token: SeDebugPrivilege 4240 msdcsc.exe Token: SeSystemEnvironmentPrivilege 4240 msdcsc.exe Token: SeChangeNotifyPrivilege 4240 msdcsc.exe Token: SeRemoteShutdownPrivilege 4240 msdcsc.exe Token: SeUndockPrivilege 4240 msdcsc.exe Token: SeManageVolumePrivilege 4240 msdcsc.exe Token: SeImpersonatePrivilege 4240 msdcsc.exe Token: SeCreateGlobalPrivilege 4240 msdcsc.exe Token: 33 4240 msdcsc.exe Token: 34 4240 msdcsc.exe Token: 35 4240 msdcsc.exe Token: 36 4240 msdcsc.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
msdcsc.exepid Process 4240 msdcsc.exe -
Suspicious use of WriteProcessMemory 59 IoCs
Processes:
9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.execmd.execmd.exemsdcsc.exedescription pid Process procid_target PID 4232 wrote to memory of 1776 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe 88 PID 4232 wrote to memory of 1776 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe 88 PID 4232 wrote to memory of 1776 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe 88 PID 4232 wrote to memory of 3852 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe 90 PID 4232 wrote to memory of 3852 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe 90 PID 4232 wrote to memory of 3852 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe 90 PID 4232 wrote to memory of 1952 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe 91 PID 4232 wrote to memory of 1952 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe 91 PID 4232 wrote to memory of 1952 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe 91 PID 4232 wrote to memory of 1952 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe 91 PID 4232 wrote to memory of 1952 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe 91 PID 4232 wrote to memory of 1952 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe 91 PID 4232 wrote to memory of 1952 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe 91 PID 4232 wrote to memory of 1952 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe 91 PID 4232 wrote to memory of 1952 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe 91 PID 4232 wrote to memory of 1952 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe 91 PID 4232 wrote to memory of 1952 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe 91 PID 4232 wrote to memory of 1952 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe 91 PID 4232 wrote to memory of 1952 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe 91 PID 4232 wrote to memory of 1952 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe 91 PID 4232 wrote to memory of 1952 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe 91 PID 4232 wrote to memory of 1952 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe 91 PID 4232 wrote to memory of 1952 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe 91 PID 1776 wrote to memory of 4892 1776 cmd.exe 93 PID 1776 wrote to memory of 4892 1776 cmd.exe 93 PID 1776 wrote to memory of 4892 1776 cmd.exe 93 PID 3852 wrote to memory of 180 3852 cmd.exe 94 PID 3852 wrote to memory of 180 3852 cmd.exe 94 PID 3852 wrote to memory of 180 3852 cmd.exe 94 PID 4232 wrote to memory of 4240 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe 95 PID 4232 wrote to memory of 4240 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe 95 PID 4232 wrote to memory of 4240 4232 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe 95 PID 4240 wrote to memory of 1100 4240 msdcsc.exe 96 PID 4240 wrote to memory of 1100 4240 msdcsc.exe 96 PID 4240 wrote to memory of 1100 4240 msdcsc.exe 96 PID 4240 wrote to memory of 3376 4240 msdcsc.exe 97 PID 4240 wrote to memory of 3376 4240 msdcsc.exe 97 PID 4240 wrote to memory of 4700 4240 msdcsc.exe 98 PID 4240 wrote to memory of 4700 4240 msdcsc.exe 98 PID 4240 wrote to memory of 4700 4240 msdcsc.exe 98 PID 4240 wrote to memory of 4700 4240 msdcsc.exe 98 PID 4240 wrote to memory of 4700 4240 msdcsc.exe 98 PID 4240 wrote to memory of 4700 4240 msdcsc.exe 98 PID 4240 wrote to memory of 4700 4240 msdcsc.exe 98 PID 4240 wrote to memory of 4700 4240 msdcsc.exe 98 PID 4240 wrote to memory of 4700 4240 msdcsc.exe 98 PID 4240 wrote to memory of 4700 4240 msdcsc.exe 98 PID 4240 wrote to memory of 4700 4240 msdcsc.exe 98 PID 4240 wrote to memory of 4700 4240 msdcsc.exe 98 PID 4240 wrote to memory of 4700 4240 msdcsc.exe 98 PID 4240 wrote to memory of 4700 4240 msdcsc.exe 98 PID 4240 wrote to memory of 4700 4240 msdcsc.exe 98 PID 4240 wrote to memory of 4700 4240 msdcsc.exe 98 PID 4240 wrote to memory of 4700 4240 msdcsc.exe 98 PID 4240 wrote to memory of 4700 4240 msdcsc.exe 98 PID 4240 wrote to memory of 4700 4240 msdcsc.exe 98 PID 4240 wrote to memory of 4700 4240 msdcsc.exe 98 PID 4240 wrote to memory of 4700 4240 msdcsc.exe 98 PID 4240 wrote to memory of 4700 4240 msdcsc.exe 98 -
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 4892 attrib.exe 180 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe"C:\Users\Admin\AppData\Local\Temp\9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.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:4232 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe" +s +h2⤵
- Suspicious use of WriteProcessMemory
PID:1776 -
C:\Windows\SysWOW64\attrib.exeattrib "C:\Users\Admin\AppData\Local\Temp\9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165.exe" +s +h3⤵
- Sets file to hidden
- Views/modifies file attributes
PID:4892
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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:3852 -
C:\Windows\SysWOW64\attrib.exeattrib "C:\Users\Admin\AppData\Local\Temp" +s +h3⤵
- Sets file to hidden
- Views/modifies file attributes
PID:180
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C:\Windows\SysWOW64\notepad.exenotepad2⤵
- Deletes itself
PID:1952
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C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"2⤵
- Modifies security service
- Windows security bypass
- 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:4240 -
C:\Program Files (x86)\Internet Explorer\iexplore.exe"C:\Program Files (x86)\Internet Explorer\iexplore.exe"3⤵PID:1100
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C:\Windows\explorer.exe"C:\Windows\explorer.exe"3⤵PID:3376
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C:\Windows\SysWOW64\notepad.exenotepad3⤵PID:4700
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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
1Windows Service
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Create or Modify System Process
1Windows Service
1Replay Monitor
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Downloads
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Filesize
659KB
MD521cb738e372351de0abf0f5bc532ab2c
SHA1af006c081c76f91866f377059db52576478aab82
SHA2569f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165
SHA512308150556c89f262b74130c0548c134bc1e0ad4e29dd04500e297f53b15988fb3f79cda8a0dafeb225a8ceac1bec5ccfd57a88d02d16dbb82e29d5d703e4cde8