Analysis
- max time kernel
150s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240221-en - resource tags
- submitted
25/02/2024, 06:52
General
- Target a326e7a665f7517349687ebf447bc0ed.exe
- Size 378KB
- Sample240225-hm8bvaec65
- SHA256 dfd8dde0f50da97dd50b44147cb2b73b2350319a3cd35c257e24866a4b9500b0
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 2 TTPs 3 IoCs
- Sality
Sality is backdoor written in C++, first discovered in 2003.
- UAC bypass 3 TTPs 1 IoCs
- Windows security bypass 2 TTPs 6 IoCs
- Executes dropped EXE 1 IoCs
- UPX packed file 15 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- 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.
- Drops file in Windows directory 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 64 IoCs
- Suspicious use of WriteProcessMemory 23 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\dwm.exe"dwm.exe"1⤵
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C:\Windows\System32\RuntimeBroker.exeC:\Windows\System32\RuntimeBroker.exe -Embedding1⤵
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C:\Windows\system32\backgroundTaskHost.exe"C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.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.AppX53ypgrj20bgndg05hj3tc7z654myszwp.mca1⤵
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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\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\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\DllHost.exeC:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}1⤵
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc1⤵
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
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C:\Users\Admin\AppData\Local\Temp\a326e7a665f7517349687ebf447bc0ed.exe"C:\Users\Admin\AppData\Local\Temp\a326e7a665f7517349687ebf447bc0ed.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
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
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C:\Users\Admin\AppData\Local\Temp\is-JFA09.tmp\a326e7a665f7517349687ebf447bc0ed.tmp"C:\Users\Admin\AppData\Local\Temp\is-JFA09.tmp\a326e7a665f7517349687ebf447bc0ed.tmp" /SL5="$60066,54272,0,C:\Users\Admin\AppData\Local\Temp\a326e7a665f7517349687ebf447bc0ed.exe"3⤵
- Executes dropped EXE
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C:\Windows\system32\taskhostw.exetaskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}1⤵
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc1⤵
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C:\Windows\system32\sihost.exesihost.exe1⤵
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C:\Windows\system32\fontdrvhost.exe"fontdrvhost.exe"1⤵
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
3Disable or Modify Tools
3Modify Registry
5Replay Monitor
Loading Replay Monitor...
Downloads
a326e7a665f7517349687ebf447bc0ed.tmp
memory/2932-23-0x0000000002380000-0x000000000340E000-memory.dmp
memory/2932-32-0x0000000002380000-0x000000000340E000-memory.dmp
memory/2932-11-0x0000000002380000-0x000000000340E000-memory.dmp
memory/2932-49-0x0000000002360000-0x0000000002362000-memory.dmp
memory/2932-13-0x0000000002380000-0x000000000340E000-memory.dmp
memory/2932-17-0x0000000002360000-0x0000000002362000-memory.dmp
memory/2932-14-0x0000000002360000-0x0000000002362000-memory.dmp
memory/2932-15-0x0000000003F90000-0x0000000003F91000-memory.dmp
memory/2932-54-0x0000000000400000-0x0000000000427000-memory.dmp
memory/2932-18-0x0000000002380000-0x000000000340E000-memory.dmp
memory/2932-39-0x0000000002380000-0x000000000340E000-memory.dmp
memory/2932-0-0x0000000000400000-0x0000000000427000-memory.dmp
memory/2932-6-0x0000000002380000-0x000000000340E000-memory.dmp
memory/2932-25-0x0000000002380000-0x000000000340E000-memory.dmp
memory/2932-31-0x0000000002380000-0x000000000340E000-memory.dmp
memory/2932-27-0x0000000002380000-0x000000000340E000-memory.dmp
memory/2932-29-0x0000000002380000-0x000000000340E000-memory.dmp
memory/2932-30-0x0000000002380000-0x000000000340E000-memory.dmp
memory/2932-26-0x0000000002380000-0x000000000340E000-memory.dmp
memory/2932-24-0x0000000002380000-0x000000000340E000-memory.dmp
memory/2932-33-0x0000000002380000-0x000000000340E000-memory.dmp
memory/3612-36-0x0000000005C20000-0x0000000005C22000-memory.dmp
memory/3612-38-0x0000000000400000-0x00000000004BD000-memory.dmp
memory/3612-21-0x0000000005ED0000-0x0000000005ED1000-memory.dmp
memory/3612-22-0x0000000005C20000-0x0000000005C22000-memory.dmp
memory/3612-12-0x0000000002210000-0x0000000002211000-memory.dmp