Analysis
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max time kernel
150s -
max time network
48s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
21/11/2022, 08:32
Static task
static1
Behavioral task
behavioral1
Sample
b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe
Resource
win7-20220901-en
windows7-x64
16 signatures
150 seconds
General
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Target
b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe
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Size
111KB
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MD5
09548c10a4b9d8ad68c05f93772259c0
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SHA1
40b1aefa419e38932bd2ae6a21b8ccac694b7d42
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SHA256
b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51
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SHA512
aa65bcca843baa4dfc32ca947e9955422c01a1f624ea52b8eafee3e3bfb12ba200cec9e1be4a226f26098c1d99869e7f7a8cc4c4451634d84a4e4720cac6cc59
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SSDEEP
1536:j6cB76NzLlFCoC6m1QrDMuUpiCvvWR4XCciU0FTZ0AKKZsL22mn2bHiBb+O:ucenC6mSrDB9CvvW4D1aCAKKaL28iIO
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\EnableFirewall = "0" b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DoNotAllowExceptions = "0" b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "1" b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1" b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UacDisableNotify = "1" b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1" b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe -
resource yara_rule behavioral1/memory/620-55-0x0000000001D90000-0x0000000002E1E000-memory.dmp upx behavioral1/memory/620-58-0x0000000001D90000-0x0000000002E1E000-memory.dmp upx behavioral1/memory/620-61-0x0000000001D90000-0x0000000002E1E000-memory.dmp upx -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1" b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1" b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UacDisableNotify = "1" b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\Svc b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe -
Enumerates connected drives 3 TTPs 22 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\E: b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe File opened (read-only) \??\N: b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe File opened (read-only) \??\P: b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe File opened (read-only) \??\T: b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe File opened (read-only) \??\U: b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe File opened (read-only) \??\V: b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe File opened (read-only) \??\W: b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe File opened (read-only) \??\H: b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe File opened (read-only) \??\L: b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe File opened (read-only) \??\S: b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe File opened (read-only) \??\X: b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe File opened (read-only) \??\Y: b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe File opened (read-only) \??\Z: b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe File opened (read-only) \??\F: b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe File opened (read-only) \??\I: b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe File opened (read-only) \??\J: b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe File opened (read-only) \??\M: b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe File opened (read-only) \??\O: b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe File opened (read-only) \??\G: b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe File opened (read-only) \??\K: b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe File opened (read-only) \??\Q: b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe File opened (read-only) \??\R: b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe -
Drops autorun.inf file 1 TTPs 1 IoCs
Malware can abuse Windows Autorun to spread further via attached volumes.
description ioc Process File opened for modification C:\autorun.inf b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe -
Drops file in Program Files directory 5 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\BCSSync.exe b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe File opened for modification C:\PROGRAM FILES\7-ZIP\7z.exe b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe File opened for modification C:\PROGRAM FILES\7-ZIP\7zFM.exe b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe File opened for modification C:\PROGRAM FILES\7-ZIP\7zG.exe b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe File opened for modification C:\PROGRAM FILES\7-ZIP\Uninstall.exe b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe -
Drops file in Windows directory 1 IoCs
description ioc Process File opened for modification C:\Windows\SYSTEM.INI b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe -
Suspicious use of AdjustPrivilegeToken 20 IoCs
description pid Process Token: SeDebugPrivilege 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe Token: SeDebugPrivilege 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe Token: SeDebugPrivilege 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe Token: SeDebugPrivilege 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe Token: SeDebugPrivilege 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe Token: SeDebugPrivilege 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe Token: SeDebugPrivilege 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe Token: SeDebugPrivilege 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe Token: SeDebugPrivilege 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe Token: SeDebugPrivilege 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe Token: SeDebugPrivilege 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe Token: SeDebugPrivilege 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe Token: SeDebugPrivilege 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe Token: SeDebugPrivilege 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe Token: SeDebugPrivilege 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe Token: SeDebugPrivilege 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe Token: SeDebugPrivilege 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe Token: SeDebugPrivilege 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe Token: SeDebugPrivilege 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe Token: SeDebugPrivilege 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe -
Suspicious use of WriteProcessMemory 42 IoCs
description pid Process procid_target PID 620 wrote to memory of 1108 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 10 PID 620 wrote to memory of 1168 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 3 PID 620 wrote to memory of 1192 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 9 PID 620 wrote to memory of 1108 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 10 PID 620 wrote to memory of 1168 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 3 PID 620 wrote to memory of 1192 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 9 PID 620 wrote to memory of 1108 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 10 PID 620 wrote to memory of 1168 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 3 PID 620 wrote to memory of 1192 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 9 PID 620 wrote to memory of 1108 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 10 PID 620 wrote to memory of 1168 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 3 PID 620 wrote to memory of 1192 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 9 PID 620 wrote to memory of 1108 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 10 PID 620 wrote to memory of 1168 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 3 PID 620 wrote to memory of 1192 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 9 PID 620 wrote to memory of 1108 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 10 PID 620 wrote to memory of 1168 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 3 PID 620 wrote to memory of 1192 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 9 PID 620 wrote to memory of 1108 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 10 PID 620 wrote to memory of 1168 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 3 PID 620 wrote to memory of 1192 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 9 PID 620 wrote to memory of 1108 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 10 PID 620 wrote to memory of 1168 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 3 PID 620 wrote to memory of 1192 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 9 PID 620 wrote to memory of 1108 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 10 PID 620 wrote to memory of 1168 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 3 PID 620 wrote to memory of 1192 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 9 PID 620 wrote to memory of 1108 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 10 PID 620 wrote to memory of 1168 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 3 PID 620 wrote to memory of 1192 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 9 PID 620 wrote to memory of 1108 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 10 PID 620 wrote to memory of 1168 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 3 PID 620 wrote to memory of 1192 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 9 PID 620 wrote to memory of 1108 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 10 PID 620 wrote to memory of 1168 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 3 PID 620 wrote to memory of 1192 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 9 PID 620 wrote to memory of 1108 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 10 PID 620 wrote to memory of 1168 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 3 PID 620 wrote to memory of 1192 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 9 PID 620 wrote to memory of 1108 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 10 PID 620 wrote to memory of 1168 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 3 PID 620 wrote to memory of 1192 620 b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe 9 -
System policy modification 1 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe
Processes
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C:\Windows\system32\Dwm.exe"C:\Windows\system32\Dwm.exe"1⤵PID:1168
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:1192
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C:\Users\Admin\AppData\Local\Temp\b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe"C:\Users\Admin\AppData\Local\Temp\b55438027b6c5f507f1a2dc742d1ca7524d17ca26874c98e65ee9b289d255b51.exe"2⤵
- Modifies firewall policy service
- UAC bypass
- Windows security bypass
- Windows security modification
- Checks whether UAC is enabled
- Enumerates connected drives
- Drops autorun.inf file
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:620
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C:\Windows\system32\taskhost.exe"taskhost.exe"1⤵PID:1108