Analysis
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max time kernel
123s -
max time network
140s -
platform
windows10-2004_x64 -
resource
win10v2004-20230703-en -
resource tags
arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system -
submitted
09-07-2023 14:58
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
821051dc9c1d17exeexeexeex.exe
Resource
win7-20230703-en
windows7-x64
15 signatures
150 seconds
General
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Target
821051dc9c1d17exeexeexeex.exe
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Size
377KB
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MD5
821051dc9c1d178d421114d14f72a773
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SHA1
51e22960c5e89405b4aed954ab34853e154191d4
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SHA256
1ed12a15da0b18ad6d6cc3003c664d25c332b83c57e7d1fc509d33b67449637c
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SHA512
25c7c19619a0f85c8df0ac6d8cff8fde917899eae9e9549dbd631b11a717a29faf98209894f15ae1eedb63e0e99a5c1c26cf44b571c3b9e3489f3c5da0880df5
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SSDEEP
6144:cfc7Mi2sLgz73pP8cE+o0BHalKXZKffW4UrycH6QLwO3yK47OOivVgtcu:cf8LIP8jlVaH4bQVgH
Malware Config
Extracted
Family
sality
C2
http://89.119.67.154/testo5/
http://kukutrustnet777.info/home.gif
http://kukutrustnet888.info/home.gif
http://kukutrustnet987.info/home.gif
http://www.klkjwre9fqwieluoi.info/
http://kukutrustnet777888.info/
Signatures
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Modifies firewall policy service 2 TTPs 3 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DoNotAllowExceptions = "0" 821051dc9c1d17exeexeexeex.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "1" 821051dc9c1d17exeexeexeex.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0" 821051dc9c1d17exeexeexeex.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" 821051dc9c1d17exeexeexeex.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1" 821051dc9c1d17exeexeexeex.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" 821051dc9c1d17exeexeexeex.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" 821051dc9c1d17exeexeexeex.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1" 821051dc9c1d17exeexeexeex.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" 821051dc9c1d17exeexeexeex.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UacDisableNotify = "1" 821051dc9c1d17exeexeexeex.exe -
Disables RegEdit via registry modification 1 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-1420546310-613437930-2990200354-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\system\DisableRegistryTools = "1" 821051dc9c1d17exeexeexeex.exe -
Disables Task Manager via registry modification
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resource yara_rule behavioral2/memory/2424-133-0x0000000002250000-0x00000000032DE000-memory.dmp upx behavioral2/memory/2424-136-0x0000000002250000-0x00000000032DE000-memory.dmp upx behavioral2/memory/2424-137-0x0000000002250000-0x00000000032DE000-memory.dmp upx behavioral2/memory/2424-142-0x0000000002250000-0x00000000032DE000-memory.dmp upx behavioral2/memory/2424-143-0x0000000002250000-0x00000000032DE000-memory.dmp upx behavioral2/memory/2424-144-0x0000000002250000-0x00000000032DE000-memory.dmp upx behavioral2/memory/2424-145-0x0000000002250000-0x00000000032DE000-memory.dmp upx behavioral2/memory/2424-146-0x0000000002250000-0x00000000032DE000-memory.dmp upx behavioral2/memory/2424-147-0x0000000002250000-0x00000000032DE000-memory.dmp upx behavioral2/memory/2424-148-0x0000000002250000-0x00000000032DE000-memory.dmp upx behavioral2/memory/2424-149-0x0000000002250000-0x00000000032DE000-memory.dmp upx behavioral2/memory/2424-150-0x0000000002250000-0x00000000032DE000-memory.dmp upx behavioral2/memory/2424-151-0x0000000002250000-0x00000000032DE000-memory.dmp upx -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" 821051dc9c1d17exeexeexeex.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1" 821051dc9c1d17exeexeexeex.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" 821051dc9c1d17exeexeexeex.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UacDisableNotify = "1" 821051dc9c1d17exeexeexeex.exe Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\Svc 821051dc9c1d17exeexeexeex.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1" 821051dc9c1d17exeexeexeex.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" 821051dc9c1d17exeexeexeex.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" 821051dc9c1d17exeexeexeex.exe -
Drops file in Windows directory 1 IoCs
description ioc Process File opened for modification C:\Windows\SYSTEM.INI 821051dc9c1d17exeexeexeex.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2424 821051dc9c1d17exeexeexeex.exe 2424 821051dc9c1d17exeexeexeex.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe Token: SeDebugPrivilege 2424 821051dc9c1d17exeexeexeex.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2424 821051dc9c1d17exeexeexeex.exe -
Suspicious use of WriteProcessMemory 18 IoCs
description pid Process procid_target PID 2424 wrote to memory of 776 2424 821051dc9c1d17exeexeexeex.exe 8 PID 2424 wrote to memory of 780 2424 821051dc9c1d17exeexeexeex.exe 13 PID 2424 wrote to memory of 336 2424 821051dc9c1d17exeexeexeex.exe 9 PID 2424 wrote to memory of 2348 2424 821051dc9c1d17exeexeexeex.exe 19 PID 2424 wrote to memory of 2364 2424 821051dc9c1d17exeexeexeex.exe 60 PID 2424 wrote to memory of 2588 2424 821051dc9c1d17exeexeexeex.exe 55 PID 2424 wrote to memory of 3088 2424 821051dc9c1d17exeexeexeex.exe 49 PID 2424 wrote to memory of 3268 2424 821051dc9c1d17exeexeexeex.exe 48 PID 2424 wrote to memory of 3496 2424 821051dc9c1d17exeexeexeex.exe 47 PID 2424 wrote to memory of 3648 2424 821051dc9c1d17exeexeexeex.exe 46 PID 2424 wrote to memory of 3712 2424 821051dc9c1d17exeexeexeex.exe 45 PID 2424 wrote to memory of 3832 2424 821051dc9c1d17exeexeexeex.exe 44 PID 2424 wrote to memory of 3388 2424 821051dc9c1d17exeexeexeex.exe 43 PID 2424 wrote to memory of 4916 2424 821051dc9c1d17exeexeexeex.exe 41 PID 2424 wrote to memory of 3964 2424 821051dc9c1d17exeexeexeex.exe 29 PID 2424 wrote to memory of 2464 2424 821051dc9c1d17exeexeexeex.exe 24 PID 2424 wrote to memory of 2928 2424 821051dc9c1d17exeexeexeex.exe 23 PID 2424 wrote to memory of 4140 2424 821051dc9c1d17exeexeexeex.exe 84 -
System policy modification 1 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" 821051dc9c1d17exeexeexeex.exe
Processes
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C:\Windows\system32\fontdrvhost.exe"fontdrvhost.exe"1⤵PID:776
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C:\Windows\system32\dwm.exe"dwm.exe"1⤵PID:336
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C:\Windows\system32\fontdrvhost.exe"fontdrvhost.exe"1⤵PID:780
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C:\Windows\system32\sihost.exesihost.exe1⤵PID:2348
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C:\Windows\system32\backgroundTaskHost.exe"C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca1⤵PID:2928
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C:\Windows\system32\backgroundTaskHost.exe"C:\Windows\system32\backgroundTaskHost.exe" -ServerName:CortanaUI.AppX3bn25b6f886wmg6twh46972vprk9tnbf.mca1⤵PID:2464
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C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\TextInputHost.exe"C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\TextInputHost.exe" -ServerName:InputApp.AppX9jnwykgrccxc8by3hsrsh07r423xzvav.mca1⤵PID:3964
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C:\Windows\System32\RuntimeBroker.exeC:\Windows\System32\RuntimeBroker.exe -Embedding1⤵PID:4916
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C:\Windows\System32\RuntimeBroker.exeC:\Windows\System32\RuntimeBroker.exe -Embedding1⤵PID:3388
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C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe"C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca1⤵PID:3832
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C:\Windows\System32\RuntimeBroker.exeC:\Windows\System32\RuntimeBroker.exe -Embedding1⤵PID:3712
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C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca1⤵PID:3648
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C:\Windows\system32\DllHost.exeC:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}1⤵PID:3496
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc1⤵PID:3268
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:3088
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C:\Users\Admin\AppData\Local\Temp\821051dc9c1d17exeexeexeex.exe"C:\Users\Admin\AppData\Local\Temp\821051dc9c1d17exeexeexeex.exe"2⤵
- Modifies firewall policy service
- UAC bypass
- Windows security bypass
- Disables RegEdit via registry modification
- Windows security modification
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- System policy modification
PID:2424
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C:\Windows\system32\taskhostw.exetaskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}1⤵PID:2588
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc1⤵PID:2364
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C:\Windows\System32\RuntimeBroker.exeC:\Windows\System32\RuntimeBroker.exe -Embedding1⤵PID:4140