Analysis
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max time kernel
31s -
max time network
31s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system -
submitted
07-05-2023 06:13
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
Backdoor.Win32.IRCNite.exe
Resource
win7-20230220-en
windows7-x64
14 signatures
150 seconds
Errors
Reason
Machine shutdown
General
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Target
Backdoor.Win32.IRCNite.exe
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Size
112KB
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MD5
438c80fc376c0e3d3379ffec5a3bcd74
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SHA1
6da1a89fbe0df57349bbc670af8f82deecb510b9
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SHA256
5616c57686191e6c65808ffe8a436e8d1476b1f6c0765efdb887498b86d4d446
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SHA512
87b6bbfd988ce9d398d2d5ac2c75c02b040760120bf0d276dd790adb0497fb330f4f98c76afed8ed3ff6e6541d9442bf0c4ee52c236f43cb601dce7042fcc56f
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SSDEEP
1536:jJg+WBW+f5bB77w0DSnVZsGw+14IUTGReGpBM9FTLPfpXwvdJic5a5a5n:jhLYZB77w0AZsGYIJVpEtjBpB5in
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 2 IoCs
Processes:
Backdoor.Win32.IRCNite.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "C:\\Windows\\system32\\userinit.exe,,C:\\Users\\Admin\\AppData\\Local\\nijubolr\\vobhlrui.exe" Backdoor.Win32.IRCNite.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "userinit.exe,C:\\Users\\Admin\\AppData\\Local\\nijubolr\\vobhlrui.exe" Backdoor.Win32.IRCNite.exe -
Modifies firewall policy service 2 TTPs 3 IoCs
Processes:
Backdoor.Win32.IRCNite.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0" Backdoor.Win32.IRCNite.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DoNotAllowExceptions = "0" Backdoor.Win32.IRCNite.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "1" Backdoor.Win32.IRCNite.exe -
Modifies security service 2 TTPs 4 IoCs
Processes:
Backdoor.Win32.IRCNite.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\WinDefend\Start = "4" Backdoor.Win32.IRCNite.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wuauserv\Start = "4" Backdoor.Win32.IRCNite.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wscsvc\Start = "4" Backdoor.Win32.IRCNite.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\MpsSvc\Start = "4" Backdoor.Win32.IRCNite.exe -
Processes:
Backdoor.Win32.IRCNite.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" Backdoor.Win32.IRCNite.exe -
Processes:
Backdoor.Win32.IRCNite.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" Backdoor.Win32.IRCNite.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UacDisableNotify = "1" Backdoor.Win32.IRCNite.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1" Backdoor.Win32.IRCNite.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" Backdoor.Win32.IRCNite.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" Backdoor.Win32.IRCNite.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1" Backdoor.Win32.IRCNite.exe -
Drops startup file 2 IoCs
Processes:
Backdoor.Win32.IRCNite.exedescription ioc process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\vobhlrui.exe Backdoor.Win32.IRCNite.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\vobhlrui.exe Backdoor.Win32.IRCNite.exe -
Processes:
resource yara_rule behavioral1/memory/1128-55-0x0000000015190000-0x00000000151CD000-memory.dmp upx behavioral1/memory/1128-54-0x0000000015190000-0x00000000151CD000-memory.dmp upx behavioral1/memory/1128-61-0x0000000015190000-0x00000000151CD000-memory.dmp upx -
Processes:
Backdoor.Win32.IRCNite.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" Backdoor.Win32.IRCNite.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UacDisableNotify = "1" Backdoor.Win32.IRCNite.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1" Backdoor.Win32.IRCNite.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" Backdoor.Win32.IRCNite.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" Backdoor.Win32.IRCNite.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1" Backdoor.Win32.IRCNite.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
Backdoor.Win32.IRCNite.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Windows\CurrentVersion\Run\VobHlrui = "C:\\Users\\Admin\\AppData\\Local\\nijubolr\\vobhlrui.exe" Backdoor.Win32.IRCNite.exe -
Processes:
Backdoor.Win32.IRCNite.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" Backdoor.Win32.IRCNite.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
Backdoor.Win32.IRCNite.exepid process 1128 Backdoor.Win32.IRCNite.exe 1128 Backdoor.Win32.IRCNite.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes:
Backdoor.Win32.IRCNite.exedescription pid process Token: SeSecurityPrivilege 1128 Backdoor.Win32.IRCNite.exe Token: SeRestorePrivilege 1128 Backdoor.Win32.IRCNite.exe Token: SeBackupPrivilege 1128 Backdoor.Win32.IRCNite.exe Token: SeShutdownPrivilege 1128 Backdoor.Win32.IRCNite.exe -
System policy modification 1 TTPs 1 IoCs
Processes:
Backdoor.Win32.IRCNite.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" Backdoor.Win32.IRCNite.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Backdoor.Win32.IRCNite.exe"C:\Users\Admin\AppData\Local\Temp\Backdoor.Win32.IRCNite.exe"1⤵
- Modifies WinLogon for persistence
- Modifies firewall policy service
- Modifies security service
- UAC bypass
- Windows security bypass
- Drops startup file
- Windows security modification
- Adds Run key to start application
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- System policy modification
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/1128-55-0x0000000015190000-0x00000000151CD000-memory.dmpFilesize
244KB
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memory/1128-54-0x0000000015190000-0x00000000151CD000-memory.dmpFilesize
244KB
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memory/1128-59-0x0000000000260000-0x0000000000261000-memory.dmpFilesize
4KB
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memory/1128-60-0x0000000000270000-0x0000000000271000-memory.dmpFilesize
4KB
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memory/1128-61-0x0000000015190000-0x00000000151CD000-memory.dmpFilesize
244KB