Analysis
- max time kernel
105s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20250314-en - resource tags
- submitted
23/03/2025, 08:32
General
- Target 2025-03-23_778cb97c19ec1c2e8463ebca2d90bbca_bkransomware_rhadamanthys.exe
- Size 353KB
- Sample250323-kfcbyaymx2
- SHA256 237d4d3519c19e499ccf9becf595b3d74635a95ce50e28d464d15500e8558586
Malware Config
Extracted
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sality
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http://89.119.67.154/testo5/
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http://kukutrustnet777.info/home.gif
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http://kukutrustnet888.info/home.gif
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http://kukutrustnet987.info/home.gif
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http://www.klkjwre9fqwieluoi.info/
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http://kukutrustnet777888.info/
Signatures
- Modifies firewall policy service 3 TTPs 3 IoCs
- Sality
Sality is backdoor written in C++, first discovered in 2003.
- Sality family
- UAC bypass 3 TTPs 1 IoCs
- Windows security bypass 2 TTPs 6 IoCs
- Windows security modification 2 TTPs 7 IoCs
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- Enumerates connected drives 3 TTPs 1 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
- UPX packed file 15 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Drops file in Windows directory 1 IoCs
- 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.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 64 IoCs
- Suspicious use of WriteProcessMemory 18 IoCs
- System policy modification 1 TTPs 1 IoCs
Processes
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C:\Windows\system32\fontdrvhost.exe"fontdrvhost.exe"1⤵
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C:\Windows\system32\fontdrvhost.exe"fontdrvhost.exe"1⤵
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C:\Windows\system32\dwm.exe"dwm.exe"1⤵
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C:\Windows\system32\sihost.exesihost.exe1⤵
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc1⤵
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C:\Windows\system32\taskhostw.exetaskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}1⤵
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
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C:\Users\Admin\AppData\Local\Temp\2025-03-23_778cb97c19ec1c2e8463ebca2d90bbca_bkransomware_rhadamanthys.exe"C:\Users\Admin\AppData\Local\Temp\2025-03-23_778cb97c19ec1c2e8463ebca2d90bbca_bkransomware_rhadamanthys.exe"2⤵
- Modifies firewall policy service
- UAC bypass
- Windows security bypass
- Windows security modification
- Checks whether UAC is enabled
- Enumerates connected drives
- 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
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C:\Windows\System32\Conhost.exe\??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV13⤵
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc1⤵
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C:\Windows\system32\DllHost.exeC:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}1⤵
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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⤵
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C:\Windows\System32\RuntimeBroker.exeC:\Windows\System32\RuntimeBroker.exe -Embedding1⤵
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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⤵
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C:\Windows\System32\RuntimeBroker.exeC:\Windows\System32\RuntimeBroker.exe -Embedding1⤵
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C:\Windows\System32\RuntimeBroker.exeC:\Windows\System32\RuntimeBroker.exe -Embedding1⤵
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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⤵
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C:\Windows\system32\backgroundTaskHost.exe"C:\Windows\system32\backgroundTaskHost.exe" -ServerName:CortanaUI.AppX3bn25b6f886wmg6twh46972vprk9tnbf.mca1⤵
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C:\Windows\system32\backgroundTaskHost.exe"C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca1⤵
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
5Replay Monitor
Loading Replay Monitor...
Downloads
memory/5968-0-0x0000000000400000-0x000000000045A000-memory.dmp
memory/5968-4-0x0000000002390000-0x000000000341E000-memory.dmp
memory/5968-6-0x0000000002390000-0x000000000341E000-memory.dmp
memory/5968-5-0x0000000002390000-0x000000000341E000-memory.dmp
memory/5968-7-0x0000000002390000-0x000000000341E000-memory.dmp
memory/5968-8-0x0000000002390000-0x000000000341E000-memory.dmp
memory/5968-11-0x0000000004270000-0x0000000004271000-memory.dmp
memory/5968-10-0x0000000004120000-0x0000000004122000-memory.dmp
memory/5968-3-0x0000000002390000-0x000000000341E000-memory.dmp
memory/5968-1-0x0000000002390000-0x000000000341E000-memory.dmp
memory/5968-12-0x0000000002390000-0x000000000341E000-memory.dmp
memory/5968-14-0x0000000004120000-0x0000000004122000-memory.dmp
memory/5968-9-0x0000000002390000-0x000000000341E000-memory.dmp
memory/5968-13-0x0000000004120000-0x0000000004122000-memory.dmp
memory/5968-16-0x0000000002390000-0x000000000341E000-memory.dmp
memory/5968-15-0x0000000002390000-0x000000000341E000-memory.dmp
memory/5968-17-0x0000000002390000-0x000000000341E000-memory.dmp
memory/5968-18-0x0000000002390000-0x000000000341E000-memory.dmp
memory/5968-19-0x0000000002390000-0x000000000341E000-memory.dmp
memory/5968-36-0x0000000000400000-0x000000000045A000-memory.dmp
memory/5968-27-0x0000000002390000-0x000000000341E000-memory.dmp
memory/5968-26-0x0000000004120000-0x0000000004122000-memory.dmp