Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
15-12-2024 17:50
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe
Resource
win7-20240708-en
windows7-x64
3 signatures
150 seconds
General
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Target
2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe
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Size
272KB
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MD5
c1390d1f1d2b9be55149385a01c8eec4
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SHA1
ba56c1ecc8b5b32eb3ebaf5f411a25792134404d
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SHA256
c2647eea57be062bd8fcaec958af1772eda334ac3d75e468444e8b520085d141
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SHA512
e83fa1f0d536159d8d4578a8abb38ff7106765804a1ea2484699cc8296fba0eab9b308badb0a7ca66e13b089d02301e08884d0e7a57e490a429e309f34964f44
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SSDEEP
6144:IX986RB2pXn2mvbkGSYUT/HcRh/E9b/7Skbdem:0z2cmvWTvcIbOkbdB
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
Signatures
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Modifies firewall policy service 3 TTPs 3 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DoNotAllowExceptions = "0" 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "1" 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0" 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe -
Sality family
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description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1" 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1" 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UacDisableNotify = "1" 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UacDisableNotify = "1" 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\Svc 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1" 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1" 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe -
resource yara_rule behavioral2/memory/4716-5-0x0000000000AC0000-0x0000000001B7A000-memory.dmp upx behavioral2/memory/4716-10-0x0000000000AC0000-0x0000000001B7A000-memory.dmp upx behavioral2/memory/4716-7-0x0000000000AC0000-0x0000000001B7A000-memory.dmp upx behavioral2/memory/4716-9-0x0000000000AC0000-0x0000000001B7A000-memory.dmp upx behavioral2/memory/4716-21-0x0000000000AC0000-0x0000000001B7A000-memory.dmp upx behavioral2/memory/4716-19-0x0000000000AC0000-0x0000000001B7A000-memory.dmp upx behavioral2/memory/4716-16-0x0000000000AC0000-0x0000000001B7A000-memory.dmp upx behavioral2/memory/4716-6-0x0000000000AC0000-0x0000000001B7A000-memory.dmp upx behavioral2/memory/4716-8-0x0000000000AC0000-0x0000000001B7A000-memory.dmp upx behavioral2/memory/4716-4-0x0000000000AC0000-0x0000000001B7A000-memory.dmp upx behavioral2/memory/4716-3-0x0000000000AC0000-0x0000000001B7A000-memory.dmp upx -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\e57c5ff 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe File opened for modification C:\Windows\SYSTEM.INI 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe -
System Location Discovery: System Language Discovery 1 TTPs 1 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 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe Token: SeDebugPrivilege 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe -
Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 4716 wrote to memory of 772 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe 8 PID 4716 wrote to memory of 780 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe 9 PID 4716 wrote to memory of 1020 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe 13 PID 4716 wrote to memory of 2672 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe 44 PID 4716 wrote to memory of 2684 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe 45 PID 4716 wrote to memory of 2912 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe 51 PID 4716 wrote to memory of 3444 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe 56 PID 4716 wrote to memory of 3560 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe 57 PID 4716 wrote to memory of 3756 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe 58 PID 4716 wrote to memory of 3852 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe 59 PID 4716 wrote to memory of 3916 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe 60 PID 4716 wrote to memory of 4004 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe 61 PID 4716 wrote to memory of 3552 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe 62 PID 4716 wrote to memory of 1456 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe 75 PID 4716 wrote to memory of 4488 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe 76 PID 4716 wrote to memory of 2256 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe 81 PID 4716 wrote to memory of 3292 4716 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe 83 -
System policy modification 1 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" 2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe
Processes
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C:\Windows\system32\fontdrvhost.exe"fontdrvhost.exe"1⤵PID:772
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C:\Windows\system32\fontdrvhost.exe"fontdrvhost.exe"1⤵PID:780
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C:\Windows\system32\dwm.exe"dwm.exe"1⤵PID:1020
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C:\Windows\system32\sihost.exesihost.exe1⤵PID:2672
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc1⤵PID:2684
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C:\Windows\system32\taskhostw.exetaskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}1⤵PID:2912
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:3444
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C:\Users\Admin\AppData\Local\Temp\2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe"C:\Users\Admin\AppData\Local\Temp\2024-12-15_c1390d1f1d2b9be55149385a01c8eec4_bkransomware.exe"2⤵
- Modifies firewall policy service
- UAC bypass
- Windows security bypass
- Windows security modification
- Checks whether UAC is enabled
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:4716 -
C:\Windows\System32\Conhost.exe\??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV13⤵PID:3292
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc1⤵PID:3560
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C:\Windows\system32\DllHost.exeC:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}1⤵PID:3756
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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:3852
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C:\Windows\System32\RuntimeBroker.exeC:\Windows\System32\RuntimeBroker.exe -Embedding1⤵PID:3916
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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:4004
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C:\Windows\System32\RuntimeBroker.exeC:\Windows\System32\RuntimeBroker.exe -Embedding1⤵PID:3552
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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:1456
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C:\Windows\System32\RuntimeBroker.exeC:\Windows\System32\RuntimeBroker.exe -Embedding1⤵PID:4488
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C:\Windows\system32\backgroundTaskHost.exe"C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca1⤵PID:2256
Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Create or Modify System Process
1Windows Service
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
4Disable or Modify System Firewall
1Disable or Modify Tools
3Modify Registry
5