Analysis
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max time kernel
150s -
max time network
148s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
25-10-2024 01:23
Behavioral task
behavioral1
Sample
rwrqrqrq.exe
Resource
win7-20240903-en
windows7-x64
21 signatures
150 seconds
General
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Target
rwrqrqrq.exe
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Size
658KB
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MD5
68cb9c61d6eb5f11e8107b166fef83e2
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SHA1
106f56b444c63b0487eef32f53accb892a6beb0b
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SHA256
31c4d97466554dd0511b6226a4877f176a49d2f41a90656b399de3a3a1081245
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SHA512
b057bb8ba484657b1311351703bb15e4e6148f4e3f2827198f062706b65b5f998d34be658b21c3877c9bc87cf1745b8c5eb500f7f6c01996286f420686d393c9
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SSDEEP
12288:+9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hv:KZ1xuVVjfFoynPaVBUR8f+kN10EB9
Malware Config
Extracted
Family
darkcomet
Botnet
Guest16
C2
8.tcp.us-cal-1.ngrok.io:18582
Mutex
DC_MUTEX-84CFJ9A
Attributes
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InstallPath
MSDCSC\msdcsc.exe
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gencode
WlVKwcLuNaTo
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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
description 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" rwrqrqrq.exe -
Modifies firewall policy service 3 TTPs 3 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0" msdcsc.exe 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 -
Modifies security service 2 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wscsvc\Start = "4" msdcsc.exe -
description 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
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\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.
pid Process 1928 attrib.exe 2884 attrib.exe -
Executes dropped EXE 1 IoCs
pid Process 2316 msdcsc.exe -
Loads dropped DLL 2 IoCs
pid Process 1796 rwrqrqrq.exe 1796 rwrqrqrq.exe -
description 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
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" rwrqrqrq.exe Set value (str) \REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" msdcsc.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs
flow ioc 2 8.tcp.us-cal-1.ngrok.io 87 8.tcp.us-cal-1.ngrok.io 107 8.tcp.us-cal-1.ngrok.io -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 7 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rwrqrqrq.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language attrib.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language attrib.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language msdcsc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language notepad.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2316 msdcsc.exe -
Suspicious use of AdjustPrivilegeToken 46 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 1796 rwrqrqrq.exe Token: SeSecurityPrivilege 1796 rwrqrqrq.exe Token: SeTakeOwnershipPrivilege 1796 rwrqrqrq.exe Token: SeLoadDriverPrivilege 1796 rwrqrqrq.exe Token: SeSystemProfilePrivilege 1796 rwrqrqrq.exe Token: SeSystemtimePrivilege 1796 rwrqrqrq.exe Token: SeProfSingleProcessPrivilege 1796 rwrqrqrq.exe Token: SeIncBasePriorityPrivilege 1796 rwrqrqrq.exe Token: SeCreatePagefilePrivilege 1796 rwrqrqrq.exe Token: SeBackupPrivilege 1796 rwrqrqrq.exe Token: SeRestorePrivilege 1796 rwrqrqrq.exe Token: SeShutdownPrivilege 1796 rwrqrqrq.exe Token: SeDebugPrivilege 1796 rwrqrqrq.exe Token: SeSystemEnvironmentPrivilege 1796 rwrqrqrq.exe Token: SeChangeNotifyPrivilege 1796 rwrqrqrq.exe Token: SeRemoteShutdownPrivilege 1796 rwrqrqrq.exe Token: SeUndockPrivilege 1796 rwrqrqrq.exe Token: SeManageVolumePrivilege 1796 rwrqrqrq.exe Token: SeImpersonatePrivilege 1796 rwrqrqrq.exe Token: SeCreateGlobalPrivilege 1796 rwrqrqrq.exe Token: 33 1796 rwrqrqrq.exe Token: 34 1796 rwrqrqrq.exe Token: 35 1796 rwrqrqrq.exe Token: SeIncreaseQuotaPrivilege 2316 msdcsc.exe Token: SeSecurityPrivilege 2316 msdcsc.exe Token: SeTakeOwnershipPrivilege 2316 msdcsc.exe Token: SeLoadDriverPrivilege 2316 msdcsc.exe Token: SeSystemProfilePrivilege 2316 msdcsc.exe Token: SeSystemtimePrivilege 2316 msdcsc.exe Token: SeProfSingleProcessPrivilege 2316 msdcsc.exe Token: SeIncBasePriorityPrivilege 2316 msdcsc.exe Token: SeCreatePagefilePrivilege 2316 msdcsc.exe Token: SeBackupPrivilege 2316 msdcsc.exe Token: SeRestorePrivilege 2316 msdcsc.exe Token: SeShutdownPrivilege 2316 msdcsc.exe Token: SeDebugPrivilege 2316 msdcsc.exe Token: SeSystemEnvironmentPrivilege 2316 msdcsc.exe Token: SeChangeNotifyPrivilege 2316 msdcsc.exe Token: SeRemoteShutdownPrivilege 2316 msdcsc.exe Token: SeUndockPrivilege 2316 msdcsc.exe Token: SeManageVolumePrivilege 2316 msdcsc.exe Token: SeImpersonatePrivilege 2316 msdcsc.exe Token: SeCreateGlobalPrivilege 2316 msdcsc.exe Token: 33 2316 msdcsc.exe Token: 34 2316 msdcsc.exe Token: 35 2316 msdcsc.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2316 msdcsc.exe -
Suspicious use of WriteProcessMemory 43 IoCs
description pid Process procid_target PID 1796 wrote to memory of 1156 1796 rwrqrqrq.exe 31 PID 1796 wrote to memory of 1156 1796 rwrqrqrq.exe 31 PID 1796 wrote to memory of 1156 1796 rwrqrqrq.exe 31 PID 1796 wrote to memory of 1156 1796 rwrqrqrq.exe 31 PID 1796 wrote to memory of 1560 1796 rwrqrqrq.exe 32 PID 1796 wrote to memory of 1560 1796 rwrqrqrq.exe 32 PID 1796 wrote to memory of 1560 1796 rwrqrqrq.exe 32 PID 1796 wrote to memory of 1560 1796 rwrqrqrq.exe 32 PID 1156 wrote to memory of 2884 1156 cmd.exe 35 PID 1156 wrote to memory of 2884 1156 cmd.exe 35 PID 1156 wrote to memory of 2884 1156 cmd.exe 35 PID 1156 wrote to memory of 2884 1156 cmd.exe 35 PID 1560 wrote to memory of 1928 1560 cmd.exe 36 PID 1560 wrote to memory of 1928 1560 cmd.exe 36 PID 1560 wrote to memory of 1928 1560 cmd.exe 36 PID 1560 wrote to memory of 1928 1560 cmd.exe 36 PID 1796 wrote to memory of 2316 1796 rwrqrqrq.exe 37 PID 1796 wrote to memory of 2316 1796 rwrqrqrq.exe 37 PID 1796 wrote to memory of 2316 1796 rwrqrqrq.exe 37 PID 1796 wrote to memory of 2316 1796 rwrqrqrq.exe 37 PID 2316 wrote to memory of 2792 2316 msdcsc.exe 38 PID 2316 wrote to memory of 2792 2316 msdcsc.exe 38 PID 2316 wrote to memory of 2792 2316 msdcsc.exe 38 PID 2316 wrote to memory of 2792 2316 msdcsc.exe 38 PID 2316 wrote to memory of 2792 2316 msdcsc.exe 38 PID 2316 wrote to memory of 2792 2316 msdcsc.exe 38 PID 2316 wrote to memory of 2792 2316 msdcsc.exe 38 PID 2316 wrote to memory of 2792 2316 msdcsc.exe 38 PID 2316 wrote to memory of 2792 2316 msdcsc.exe 38 PID 2316 wrote to memory of 2792 2316 msdcsc.exe 38 PID 2316 wrote to memory of 2792 2316 msdcsc.exe 38 PID 2316 wrote to memory of 2792 2316 msdcsc.exe 38 PID 2316 wrote to memory of 2792 2316 msdcsc.exe 38 PID 2316 wrote to memory of 2792 2316 msdcsc.exe 38 PID 2316 wrote to memory of 2792 2316 msdcsc.exe 38 PID 2316 wrote to memory of 2792 2316 msdcsc.exe 38 PID 2316 wrote to memory of 2792 2316 msdcsc.exe 38 PID 2316 wrote to memory of 2792 2316 msdcsc.exe 38 PID 2316 wrote to memory of 2792 2316 msdcsc.exe 38 PID 2316 wrote to memory of 2792 2316 msdcsc.exe 38 PID 2316 wrote to memory of 2792 2316 msdcsc.exe 38 PID 2316 wrote to memory of 2792 2316 msdcsc.exe 38 PID 2316 wrote to memory of 2792 2316 msdcsc.exe 38 -
System policy modification 1 TTPs 3 IoCs
description 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
pid Process 1928 attrib.exe 2884 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\rwrqrqrq.exe"C:\Users\Admin\AppData\Local\Temp\rwrqrqrq.exe"1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1796 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\rwrqrqrq.exe" +s +h2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1156 -
C:\Windows\SysWOW64\attrib.exeattrib "C:\Users\Admin\AppData\Local\Temp\rwrqrqrq.exe" +s +h3⤵
- Sets file to hidden
- System Location Discovery: System Language Discovery
- Views/modifies file attributes
PID:2884
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1560 -
C:\Windows\SysWOW64\attrib.exeattrib "C:\Users\Admin\AppData\Local\Temp" +s +h3⤵
- Sets file to hidden
- System Location Discovery: System Language Discovery
- Views/modifies file attributes
PID:1928
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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
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- System policy modification
PID:2316 -
C:\Windows\SysWOW64\notepad.exenotepad3⤵
- System Location Discovery: System Language Discovery
PID:2792
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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
2Defense Evasion
Hide Artifacts
2Hidden Files and Directories
2Impair Defenses
3Disable or Modify System Firewall
1Disable or Modify Tools
2Modify Registry
7Replay Monitor
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Downloads
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Filesize
658KB
MD568cb9c61d6eb5f11e8107b166fef83e2
SHA1106f56b444c63b0487eef32f53accb892a6beb0b
SHA25631c4d97466554dd0511b6226a4877f176a49d2f41a90656b399de3a3a1081245
SHA512b057bb8ba484657b1311351703bb15e4e6148f4e3f2827198f062706b65b5f998d34be658b21c3877c9bc87cf1745b8c5eb500f7f6c01996286f420686d393c9