Analysis
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max time kernel
121s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20240705-en -
resource tags
arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system -
submitted
22-08-2024 20:50
Static task
static1
Behavioral task
behavioral1
Sample
20240822d7ca2fa67d5b9041e4c7dd7de4cbd9d2bkransomware.exe
Resource
win7-20240705-en
General
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Target
20240822d7ca2fa67d5b9041e4c7dd7de4cbd9d2bkransomware.exe
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Size
520KB
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MD5
d7ca2fa67d5b9041e4c7dd7de4cbd9d2
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SHA1
f967c21f26f181782a94cba4aef5f7a90238441e
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SHA256
4b5c0850854172aabea07f2e8d5d8c9304f94a57e0f5db8544030876eecaa65a
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SHA512
f94df7a83e8e60c098868c52aa23f4d4155d6b98b4f591e38ee361c8579b4f7dae990a871c7da25c68bb6af441604ed2ae42be1a0b25e58a20d4e6f36026bf6b
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SSDEEP
6144:foyZmTAsfJFakxaLjcMkc0Cax1PwGp6bYA0w601+dNT9/0626ASkVOAFY051Ldep:foyIJsMPrPdp6bYboEdNHONdeYSLpP
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
description ioc Process Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0" 20240822d7ca2fa67d5b9041e4c7dd7de4cbd9d2bkransomware.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DoNotAllowExceptions = "0" 20240822d7ca2fa67d5b9041e4c7dd7de4cbd9d2bkransomware.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "1" 20240822d7ca2fa67d5b9041e4c7dd7de4cbd9d2bkransomware.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" 20240822d7ca2fa67d5b9041e4c7dd7de4cbd9d2bkransomware.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1" 20240822d7ca2fa67d5b9041e4c7dd7de4cbd9d2bkransomware.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" 20240822d7ca2fa67d5b9041e4c7dd7de4cbd9d2bkransomware.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UacDisableNotify = "1" 20240822d7ca2fa67d5b9041e4c7dd7de4cbd9d2bkransomware.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1" 20240822d7ca2fa67d5b9041e4c7dd7de4cbd9d2bkransomware.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" 20240822d7ca2fa67d5b9041e4c7dd7de4cbd9d2bkransomware.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" 20240822d7ca2fa67d5b9041e4c7dd7de4cbd9d2bkransomware.exe -
resource yara_rule behavioral1/memory/2704-1-0x0000000001E40000-0x0000000002EFA000-memory.dmp upx behavioral1/memory/2704-3-0x0000000001E40000-0x0000000002EFA000-memory.dmp upx behavioral1/memory/2704-6-0x0000000001E40000-0x0000000002EFA000-memory.dmp upx behavioral1/memory/2704-9-0x0000000001E40000-0x0000000002EFA000-memory.dmp upx behavioral1/memory/2704-11-0x0000000001E40000-0x0000000002EFA000-memory.dmp upx behavioral1/memory/2704-18-0x0000000001E40000-0x0000000002EFA000-memory.dmp upx behavioral1/memory/2704-10-0x0000000001E40000-0x0000000002EFA000-memory.dmp upx behavioral1/memory/2704-8-0x0000000001E40000-0x0000000002EFA000-memory.dmp upx behavioral1/memory/2704-7-0x0000000001E40000-0x0000000002EFA000-memory.dmp upx behavioral1/memory/2704-5-0x0000000001E40000-0x0000000002EFA000-memory.dmp upx behavioral1/memory/2704-4-0x0000000001E40000-0x0000000002EFA000-memory.dmp upx -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1" 20240822d7ca2fa67d5b9041e4c7dd7de4cbd9d2bkransomware.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" 20240822d7ca2fa67d5b9041e4c7dd7de4cbd9d2bkransomware.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" 20240822d7ca2fa67d5b9041e4c7dd7de4cbd9d2bkransomware.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1" 20240822d7ca2fa67d5b9041e4c7dd7de4cbd9d2bkransomware.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" 20240822d7ca2fa67d5b9041e4c7dd7de4cbd9d2bkransomware.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UacDisableNotify = "1" 20240822d7ca2fa67d5b9041e4c7dd7de4cbd9d2bkransomware.exe Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\Svc 20240822d7ca2fa67d5b9041e4c7dd7de4cbd9d2bkransomware.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" 20240822d7ca2fa67d5b9041e4c7dd7de4cbd9d2bkransomware.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\f76e83d 20240822d7ca2fa67d5b9041e4c7dd7de4cbd9d2bkransomware.exe File opened for modification C:\Windows\SYSTEM.INI 20240822d7ca2fa67d5b9041e4c7dd7de4cbd9d2bkransomware.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 20240822d7ca2fa67d5b9041e4c7dd7de4cbd9d2bkransomware.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 2704 20240822d7ca2fa67d5b9041e4c7dd7de4cbd9d2bkransomware.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 2704 20240822d7ca2fa67d5b9041e4c7dd7de4cbd9d2bkransomware.exe 2704 20240822d7ca2fa67d5b9041e4c7dd7de4cbd9d2bkransomware.exe 2704 20240822d7ca2fa67d5b9041e4c7dd7de4cbd9d2bkransomware.exe -
System policy modification 1 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" 20240822d7ca2fa67d5b9041e4c7dd7de4cbd9d2bkransomware.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\20240822d7ca2fa67d5b9041e4c7dd7de4cbd9d2bkransomware.exe"C:\Users\Admin\AppData\Local\Temp\20240822d7ca2fa67d5b9041e4c7dd7de4cbd9d2bkransomware.exe"1⤵
- 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 SetWindowsHookEx
- System policy modification
PID:2704
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