Analysis
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max time kernel
120s -
max time network
130s -
platform
windows7_x64 -
resource
win7-20240611-en -
resource tags
arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system -
submitted
30-06-2024 20:02
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-30_9930184bfe3f2a6e964ebbfcececd585_bkransomware.exe
Resource
win7-20240611-en
General
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Target
2024-06-30_9930184bfe3f2a6e964ebbfcececd585_bkransomware.exe
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Size
520KB
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MD5
9930184bfe3f2a6e964ebbfcececd585
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SHA1
31604a135255898f949b876bd8b3d0be697a5ebe
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SHA256
1969764d05a47d65afe229f2a52b5e9349e0dc0c40e44f63fad24d50f9934e76
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SHA512
4b74abd86d0133e0764a8bd7689375a6e4fc9765496ecbb9f4484d371064f158325c52e732a29a3aa40897cc27b1ca412fd60261c3b6e7c620a4b70cd216a472
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SSDEEP
6144:YoyZmTAsfJFakxaLjcMkc0Cax1PmgGp6bYA0w601+dNT9/0626ASkVOAFAo9WUZn:YoyIJsMPrP6p6bYboEdNLo9R3rz
Malware Config
Extracted
sality
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
Processes:
2024-06-30_9930184bfe3f2a6e964ebbfcececd585_bkransomware.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "1" 2024-06-30_9930184bfe3f2a6e964ebbfcececd585_bkransomware.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0" 2024-06-30_9930184bfe3f2a6e964ebbfcececd585_bkransomware.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DoNotAllowExceptions = "0" 2024-06-30_9930184bfe3f2a6e964ebbfcececd585_bkransomware.exe -
Processes:
2024-06-30_9930184bfe3f2a6e964ebbfcececd585_bkransomware.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" 2024-06-30_9930184bfe3f2a6e964ebbfcececd585_bkransomware.exe -
Processes:
2024-06-30_9930184bfe3f2a6e964ebbfcececd585_bkransomware.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1" 2024-06-30_9930184bfe3f2a6e964ebbfcececd585_bkransomware.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" 2024-06-30_9930184bfe3f2a6e964ebbfcececd585_bkransomware.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UacDisableNotify = "1" 2024-06-30_9930184bfe3f2a6e964ebbfcececd585_bkransomware.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1" 2024-06-30_9930184bfe3f2a6e964ebbfcececd585_bkransomware.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" 2024-06-30_9930184bfe3f2a6e964ebbfcececd585_bkransomware.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" 2024-06-30_9930184bfe3f2a6e964ebbfcececd585_bkransomware.exe -
Detects executables packed with Sality Polymorphic Code Generator or Simple Poly Engine or Sality 7 IoCs
Processes:
resource yara_rule behavioral1/memory/1932-2-0x0000000002030000-0x00000000030EA000-memory.dmp INDICATOR_EXE_Packed_SimplePolyEngine behavioral1/memory/1932-4-0x0000000002030000-0x00000000030EA000-memory.dmp INDICATOR_EXE_Packed_SimplePolyEngine behavioral1/memory/1932-5-0x0000000002030000-0x00000000030EA000-memory.dmp INDICATOR_EXE_Packed_SimplePolyEngine behavioral1/memory/1932-6-0x0000000002030000-0x00000000030EA000-memory.dmp INDICATOR_EXE_Packed_SimplePolyEngine behavioral1/memory/1932-7-0x0000000002030000-0x00000000030EA000-memory.dmp INDICATOR_EXE_Packed_SimplePolyEngine behavioral1/memory/1932-8-0x0000000002030000-0x00000000030EA000-memory.dmp INDICATOR_EXE_Packed_SimplePolyEngine behavioral1/memory/1932-17-0x0000000002030000-0x00000000030EA000-memory.dmp INDICATOR_EXE_Packed_SimplePolyEngine -
UPX dump on OEP (original entry point) 8 IoCs
Processes:
resource yara_rule behavioral1/memory/1932-2-0x0000000002030000-0x00000000030EA000-memory.dmp UPX behavioral1/memory/1932-4-0x0000000002030000-0x00000000030EA000-memory.dmp UPX behavioral1/memory/1932-5-0x0000000002030000-0x00000000030EA000-memory.dmp UPX behavioral1/memory/1932-6-0x0000000002030000-0x00000000030EA000-memory.dmp UPX behavioral1/memory/1932-7-0x0000000002030000-0x00000000030EA000-memory.dmp UPX behavioral1/memory/1932-8-0x0000000002030000-0x00000000030EA000-memory.dmp UPX behavioral1/memory/1932-16-0x0000000000400000-0x0000000000487000-memory.dmp UPX behavioral1/memory/1932-17-0x0000000002030000-0x00000000030EA000-memory.dmp UPX -
Processes:
resource yara_rule behavioral1/memory/1932-2-0x0000000002030000-0x00000000030EA000-memory.dmp upx behavioral1/memory/1932-4-0x0000000002030000-0x00000000030EA000-memory.dmp upx behavioral1/memory/1932-5-0x0000000002030000-0x00000000030EA000-memory.dmp upx behavioral1/memory/1932-6-0x0000000002030000-0x00000000030EA000-memory.dmp upx behavioral1/memory/1932-7-0x0000000002030000-0x00000000030EA000-memory.dmp upx behavioral1/memory/1932-8-0x0000000002030000-0x00000000030EA000-memory.dmp upx behavioral1/memory/1932-17-0x0000000002030000-0x00000000030EA000-memory.dmp upx -
Processes:
2024-06-30_9930184bfe3f2a6e964ebbfcececd585_bkransomware.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1" 2024-06-30_9930184bfe3f2a6e964ebbfcececd585_bkransomware.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" 2024-06-30_9930184bfe3f2a6e964ebbfcececd585_bkransomware.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" 2024-06-30_9930184bfe3f2a6e964ebbfcececd585_bkransomware.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1" 2024-06-30_9930184bfe3f2a6e964ebbfcececd585_bkransomware.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" 2024-06-30_9930184bfe3f2a6e964ebbfcececd585_bkransomware.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UacDisableNotify = "1" 2024-06-30_9930184bfe3f2a6e964ebbfcececd585_bkransomware.exe Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\Svc 2024-06-30_9930184bfe3f2a6e964ebbfcececd585_bkransomware.exe -
Processes:
2024-06-30_9930184bfe3f2a6e964ebbfcececd585_bkransomware.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" 2024-06-30_9930184bfe3f2a6e964ebbfcececd585_bkransomware.exe -
Drops file in Windows directory 2 IoCs
Processes:
2024-06-30_9930184bfe3f2a6e964ebbfcececd585_bkransomware.exedescription ioc process File created C:\Windows\f763350 2024-06-30_9930184bfe3f2a6e964ebbfcececd585_bkransomware.exe File opened for modification C:\Windows\SYSTEM.INI 2024-06-30_9930184bfe3f2a6e964ebbfcececd585_bkransomware.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
2024-06-30_9930184bfe3f2a6e964ebbfcececd585_bkransomware.exepid process 1932 2024-06-30_9930184bfe3f2a6e964ebbfcececd585_bkransomware.exe -
Suspicious use of AdjustPrivilegeToken 7 IoCs
Processes:
2024-06-30_9930184bfe3f2a6e964ebbfcececd585_bkransomware.exedescription pid process Token: SeDebugPrivilege 1932 2024-06-30_9930184bfe3f2a6e964ebbfcececd585_bkransomware.exe Token: SeDebugPrivilege 1932 2024-06-30_9930184bfe3f2a6e964ebbfcececd585_bkransomware.exe Token: SeDebugPrivilege 1932 2024-06-30_9930184bfe3f2a6e964ebbfcececd585_bkransomware.exe Token: SeDebugPrivilege 1932 2024-06-30_9930184bfe3f2a6e964ebbfcececd585_bkransomware.exe Token: SeDebugPrivilege 1932 2024-06-30_9930184bfe3f2a6e964ebbfcececd585_bkransomware.exe Token: SeDebugPrivilege 1932 2024-06-30_9930184bfe3f2a6e964ebbfcececd585_bkransomware.exe Token: SeDebugPrivilege 1932 2024-06-30_9930184bfe3f2a6e964ebbfcececd585_bkransomware.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
Processes:
2024-06-30_9930184bfe3f2a6e964ebbfcececd585_bkransomware.exepid process 1932 2024-06-30_9930184bfe3f2a6e964ebbfcececd585_bkransomware.exe 1932 2024-06-30_9930184bfe3f2a6e964ebbfcececd585_bkransomware.exe 1932 2024-06-30_9930184bfe3f2a6e964ebbfcececd585_bkransomware.exe -
System policy modification 1 TTPs 1 IoCs
Processes:
2024-06-30_9930184bfe3f2a6e964ebbfcececd585_bkransomware.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" 2024-06-30_9930184bfe3f2a6e964ebbfcececd585_bkransomware.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-30_9930184bfe3f2a6e964ebbfcececd585_bkransomware.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-30_9930184bfe3f2a6e964ebbfcececd585_bkransomware.exe"1⤵
- Modifies firewall policy service
- UAC bypass
- Windows security bypass
- Windows security modification
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- System policy modification
Network
MITRE ATT&CK Matrix ATT&CK v13
Privilege Escalation
Create or Modify System Process
1Windows Service
1Abuse Elevation Control Mechanism
1Bypass User Account Control
1Replay Monitor
Loading Replay Monitor...
Downloads
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memory/1932-0-0x0000000000400000-0x0000000000487000-memory.dmpFilesize
540KB
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memory/1932-2-0x0000000002030000-0x00000000030EA000-memory.dmpFilesize
16.7MB
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memory/1932-4-0x0000000002030000-0x00000000030EA000-memory.dmpFilesize
16.7MB
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memory/1932-5-0x0000000002030000-0x00000000030EA000-memory.dmpFilesize
16.7MB
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memory/1932-6-0x0000000002030000-0x00000000030EA000-memory.dmpFilesize
16.7MB
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memory/1932-7-0x0000000002030000-0x00000000030EA000-memory.dmpFilesize
16.7MB
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memory/1932-8-0x0000000002030000-0x00000000030EA000-memory.dmpFilesize
16.7MB
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memory/1932-16-0x0000000000400000-0x0000000000487000-memory.dmpFilesize
540KB
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memory/1932-17-0x0000000002030000-0x00000000030EA000-memory.dmpFilesize
16.7MB