Analysis
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max time kernel
19s -
max time network
24s -
platform
windows7_x64 -
resource
win7 -
submitted
19-07-2020 19:37
Static task
static1
Behavioral task
behavioral1
Sample
chthonic_2.23.15.14.vir.exe
Resource
win7
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
chthonic_2.23.15.14.vir.exe
Resource
win10
windows10_x64
0 signatures
0 seconds
Errors
Reason
Machine shutdown
General
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Target
chthonic_2.23.15.14.vir.exe
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Size
407KB
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MD5
878804a067f5d32ba006f57a6635e87e
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SHA1
1433f4c575719b8a9269597a997e15ff2420caf5
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SHA256
a637d7360ef409b2d9f3038de841583a039287ee7f54d2f634d9cea6c0fd502f
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SHA512
707930f022dd4a0595f98c76e8602d8b531c1c7de8c0c311eef082b97fffab67358e7f633541c3afe00e9080d8017eba8e46c89392b5af7eb9e5f838b5f75961
Score
10/10
Malware Config
Signatures
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
msiexec.exemsiexec.exepid process 1840 msiexec.exe 1988 msiexec.exe -
Loads dropped DLL 3 IoCs
Processes:
cmd.execmd.exepid process 1888 cmd.exe 1888 cmd.exe 2016 cmd.exe -
Processes:
msiexec.exedescription ioc process Set value (int) \REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Internet Explorer\PhishingFilter\EnabledV8 = "0" msiexec.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Internet Explorer\PhishingFilter\EnabledV9 = "0" msiexec.exe Set value (int) \REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Internet Explorer\PhishingFilter\EnabledV9 = "0" msiexec.exe Key created \REGISTRY\MACHINE\Software\Microsoft\Internet Explorer\PhishingFilter msiexec.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Internet Explorer\PhishingFilter\EnabledV8 = "0" msiexec.exe Key created \REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Internet Explorer\PhishingFilter msiexec.exe -
Modifies service 2 TTPs 2 IoCs
Processes:
msiexec.exedescription ioc process Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\diagnosticshub.standardcollector.service msiexec.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\diagnosticshub.standardcollector.service\Start = "4" msiexec.exe -
System policy modification 1 TTPs 3 IoCs
Processes:
msiexec.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\HideSCAHealth = "1" msiexec.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\TaskbarNoNotification = "1" msiexec.exe Key created \REGISTRY\MACHINE\software\microsoft\windows\currentversion\policies\Explorer msiexec.exe -
Disables taskbar notifications via registry modification
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Suspicious use of WriteProcessMemory 56 IoCs
Processes:
chthonic_2.23.15.14.vir.exechthonic_2.23.15.14.vir.exechthonic_2.23.15.14.vir.exemsiexec.execmd.exeWindowsSidebarb.exeWindowsSidebarb.exeWindowsSidebarb.exemsiexec.execmd.exedescription pid process target process PID 1516 wrote to memory of 1780 1516 chthonic_2.23.15.14.vir.exe chthonic_2.23.15.14.vir.exe PID 1516 wrote to memory of 1780 1516 chthonic_2.23.15.14.vir.exe chthonic_2.23.15.14.vir.exe PID 1516 wrote to memory of 1780 1516 chthonic_2.23.15.14.vir.exe chthonic_2.23.15.14.vir.exe PID 1516 wrote to memory of 1780 1516 chthonic_2.23.15.14.vir.exe chthonic_2.23.15.14.vir.exe PID 1780 wrote to memory of 1756 1780 chthonic_2.23.15.14.vir.exe chthonic_2.23.15.14.vir.exe PID 1780 wrote to memory of 1756 1780 chthonic_2.23.15.14.vir.exe chthonic_2.23.15.14.vir.exe PID 1780 wrote to memory of 1756 1780 chthonic_2.23.15.14.vir.exe chthonic_2.23.15.14.vir.exe PID 1780 wrote to memory of 1756 1780 chthonic_2.23.15.14.vir.exe chthonic_2.23.15.14.vir.exe PID 1780 wrote to memory of 1756 1780 chthonic_2.23.15.14.vir.exe chthonic_2.23.15.14.vir.exe PID 1780 wrote to memory of 1756 1780 chthonic_2.23.15.14.vir.exe chthonic_2.23.15.14.vir.exe PID 1780 wrote to memory of 1756 1780 chthonic_2.23.15.14.vir.exe chthonic_2.23.15.14.vir.exe PID 1780 wrote to memory of 1756 1780 chthonic_2.23.15.14.vir.exe chthonic_2.23.15.14.vir.exe PID 1756 wrote to memory of 1840 1756 chthonic_2.23.15.14.vir.exe msiexec.exe PID 1756 wrote to memory of 1840 1756 chthonic_2.23.15.14.vir.exe msiexec.exe PID 1756 wrote to memory of 1840 1756 chthonic_2.23.15.14.vir.exe msiexec.exe PID 1756 wrote to memory of 1840 1756 chthonic_2.23.15.14.vir.exe msiexec.exe PID 1756 wrote to memory of 1840 1756 chthonic_2.23.15.14.vir.exe msiexec.exe PID 1756 wrote to memory of 1840 1756 chthonic_2.23.15.14.vir.exe msiexec.exe PID 1756 wrote to memory of 1840 1756 chthonic_2.23.15.14.vir.exe msiexec.exe PID 1756 wrote to memory of 1840 1756 chthonic_2.23.15.14.vir.exe msiexec.exe PID 1840 wrote to memory of 1888 1840 msiexec.exe cmd.exe PID 1840 wrote to memory of 1888 1840 msiexec.exe cmd.exe PID 1840 wrote to memory of 1888 1840 msiexec.exe cmd.exe PID 1840 wrote to memory of 1888 1840 msiexec.exe cmd.exe PID 1888 wrote to memory of 1904 1888 cmd.exe WindowsSidebarb.exe PID 1888 wrote to memory of 1904 1888 cmd.exe WindowsSidebarb.exe PID 1888 wrote to memory of 1904 1888 cmd.exe WindowsSidebarb.exe PID 1888 wrote to memory of 1904 1888 cmd.exe WindowsSidebarb.exe PID 1904 wrote to memory of 1936 1904 WindowsSidebarb.exe WindowsSidebarb.exe PID 1904 wrote to memory of 1936 1904 WindowsSidebarb.exe WindowsSidebarb.exe PID 1904 wrote to memory of 1936 1904 WindowsSidebarb.exe WindowsSidebarb.exe PID 1904 wrote to memory of 1936 1904 WindowsSidebarb.exe WindowsSidebarb.exe PID 1936 wrote to memory of 1948 1936 WindowsSidebarb.exe WindowsSidebarb.exe PID 1936 wrote to memory of 1948 1936 WindowsSidebarb.exe WindowsSidebarb.exe PID 1936 wrote to memory of 1948 1936 WindowsSidebarb.exe WindowsSidebarb.exe PID 1936 wrote to memory of 1948 1936 WindowsSidebarb.exe WindowsSidebarb.exe PID 1936 wrote to memory of 1948 1936 WindowsSidebarb.exe WindowsSidebarb.exe PID 1936 wrote to memory of 1948 1936 WindowsSidebarb.exe WindowsSidebarb.exe PID 1936 wrote to memory of 1948 1936 WindowsSidebarb.exe WindowsSidebarb.exe PID 1936 wrote to memory of 1948 1936 WindowsSidebarb.exe WindowsSidebarb.exe PID 1948 wrote to memory of 1988 1948 WindowsSidebarb.exe msiexec.exe PID 1948 wrote to memory of 1988 1948 WindowsSidebarb.exe msiexec.exe PID 1948 wrote to memory of 1988 1948 WindowsSidebarb.exe msiexec.exe PID 1948 wrote to memory of 1988 1948 WindowsSidebarb.exe msiexec.exe PID 1948 wrote to memory of 1988 1948 WindowsSidebarb.exe msiexec.exe PID 1948 wrote to memory of 1988 1948 WindowsSidebarb.exe msiexec.exe PID 1948 wrote to memory of 1988 1948 WindowsSidebarb.exe msiexec.exe PID 1948 wrote to memory of 1988 1948 WindowsSidebarb.exe msiexec.exe PID 1988 wrote to memory of 2016 1988 msiexec.exe cmd.exe PID 1988 wrote to memory of 2016 1988 msiexec.exe cmd.exe PID 1988 wrote to memory of 2016 1988 msiexec.exe cmd.exe PID 1988 wrote to memory of 2016 1988 msiexec.exe cmd.exe PID 2016 wrote to memory of 1120 2016 cmd.exe WindowsSidebarb.exe PID 2016 wrote to memory of 1120 2016 cmd.exe WindowsSidebarb.exe PID 2016 wrote to memory of 1120 2016 cmd.exe WindowsSidebarb.exe PID 2016 wrote to memory of 1120 2016 cmd.exe WindowsSidebarb.exe -
Deletes itself 1 IoCs
Processes:
msiexec.exepid process 1840 msiexec.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
msiexec.exedescription pid process Token: SeShutdownPrivilege 1840 msiexec.exe -
Adds Run key to start application 2 TTPs 6 IoCs
Processes:
msiexec.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\software\microsoft\windows\currentversion\Run msiexec.exe Set value (str) \REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\WindowsSidebarb = "C:\\Users\\Admin\\AppData\\Roaming\\WindowsSidebarb\\WindowsSidebarb.exe" msiexec.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run msiexec.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SecurityHealth = "system" msiexec.exe Key created \REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run msiexec.exe Set value (str) \REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\SecurityHealth = "system" msiexec.exe -
Processes:
msiexec.exemsiexec.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA msiexec.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA msiexec.exe -
Suspicious use of SetThreadContext 2 IoCs
Processes:
chthonic_2.23.15.14.vir.exeWindowsSidebarb.exedescription pid process target process PID 1780 set thread context of 1756 1780 chthonic_2.23.15.14.vir.exe chthonic_2.23.15.14.vir.exe PID 1936 set thread context of 1948 1936 WindowsSidebarb.exe WindowsSidebarb.exe -
Executes dropped EXE 4 IoCs
Processes:
WindowsSidebarb.exeWindowsSidebarb.exeWindowsSidebarb.exeWindowsSidebarb.exepid process 1904 WindowsSidebarb.exe 1936 WindowsSidebarb.exe 1948 WindowsSidebarb.exe 1120 WindowsSidebarb.exe -
Checks for any installed AV software in registry 1 TTPs 8 IoCs
Processes:
msiexec.exemsiexec.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\McAPExe msiexec.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\McProxy msiexec.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\antivirservice msiexec.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\avast! Antivirus msiexec.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\McAPExe msiexec.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\McProxy msiexec.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\antivirservice msiexec.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\avast! Antivirus msiexec.exe -
Modifies registry class 23 IoCs
Processes:
msiexec.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Local Settings\Software\Microsoft\Windows msiexec.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.microsoftedge_8wekyb3d8bbwe msiexec.exe Key created \REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000_CLASSES\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage msiexec.exe Key created \REGISTRY\MACHINE\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.microsoftedge_8wekyb3d8bbwe\MicrosoftEdge\PhishingFilter msiexec.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Local Settings msiexec.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion msiexec.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer msiexec.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage msiexec.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.microsoftedge_8wekyb3d8bbwe\MicrosoftEdge\PhishingFilter msiexec.exe Key created \REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000_CLASSES\Local Settings\Software\Microsoft msiexec.exe Key created \REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000_CLASSES\Local Settings\Software\Microsoft\Windows msiexec.exe Key created \REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000_CLASSES\Local Settings\Software\Microsoft\Windows\CurrentVersion msiexec.exe Key created \REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000_CLASSES\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer msiexec.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Local Settings\Software msiexec.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.microsoftedge_8wekyb3d8bbwe\MicrosoftEdge msiexec.exe Key created \REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000_CLASSES\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.microsoftedge_8wekyb3d8bbwe\MicrosoftEdge\PhishingFilter msiexec.exe Key created \REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000_CLASSES\Local Settings\Software msiexec.exe Key created \REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000_CLASSES\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.microsoftedge_8wekyb3d8bbwe msiexec.exe Key created \REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000_CLASSES\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.microsoftedge_8wekyb3d8bbwe\MicrosoftEdge msiexec.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Local Settings\Software\Microsoft msiexec.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.microsoftedge_8wekyb3d8bbwe\MicrosoftEdge\PhishingFilter\EnabledV9 = "0" msiexec.exe Key created \REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000_CLASSES\Local Settings msiexec.exe Set value (int) \REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000_CLASSES\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.microsoftedge_8wekyb3d8bbwe\MicrosoftEdge\PhishingFilter\EnabledV9 = "0" msiexec.exe -
Suspicious behavior: GetForegroundWindowSpam 4 IoCs
Processes:
chthonic_2.23.15.14.vir.exemsiexec.exeWindowsSidebarb.exemsiexec.exepid process 1756 chthonic_2.23.15.14.vir.exe 1840 msiexec.exe 1948 WindowsSidebarb.exe 1988 msiexec.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\chthonic_2.23.15.14.vir.exe"C:\Users\Admin\AppData\Local\Temp\chthonic_2.23.15.14.vir.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\chthonic_2.23.15.14.vir.exe"C:\Users\Admin\AppData\Local\Temp\chthonic_2.23.15.14.vir.exe" -l2⤵
- Suspicious use of WriteProcessMemory
- Suspicious use of SetThreadContext
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C:\Users\Admin\AppData\Local\Temp\chthonic_2.23.15.14.vir.exeC:\Users\Admin\AppData\Local\Temp\chthonic_2.23.15.14.vir.exe3⤵
- Suspicious use of WriteProcessMemory
- Suspicious behavior: GetForegroundWindowSpam
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C:\Windows\SysWOW64\msiexec.exemsiexec.exe4⤵
- Suspicious behavior: EnumeratesProcesses
- Modifies Internet Explorer settings
- Modifies service
- System policy modification
- Suspicious use of WriteProcessMemory
- Deletes itself
- Suspicious use of AdjustPrivilegeToken
- Adds Run key to start application
- Checks whether UAC is enabled
- Checks for any installed AV software in registry
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c "C:\Users\Admin\AppData\Roaming\WindowsSidebarb\WindowsSidebarb.exe"5⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\WindowsSidebarb\WindowsSidebarb.exeC:\Users\Admin\AppData\Roaming\WindowsSidebarb\WindowsSidebarb.exe6⤵
- Suspicious use of WriteProcessMemory
- Executes dropped EXE
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C:\Users\Admin\AppData\Roaming\WindowsSidebarb\WindowsSidebarb.exe"C:\Users\Admin\AppData\Roaming\WindowsSidebarb\WindowsSidebarb.exe" -l7⤵
- Suspicious use of WriteProcessMemory
- Suspicious use of SetThreadContext
- Executes dropped EXE
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C:\Users\Admin\AppData\Roaming\WindowsSidebarb\WindowsSidebarb.exeC:\Users\Admin\AppData\Roaming\WindowsSidebarb\WindowsSidebarb.exe8⤵
- Suspicious use of WriteProcessMemory
- Executes dropped EXE
- Suspicious behavior: GetForegroundWindowSpam
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C:\Windows\SysWOW64\msiexec.exemsiexec.exe9⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- Checks whether UAC is enabled
- Checks for any installed AV software in registry
- Suspicious behavior: GetForegroundWindowSpam
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c "C:\Users\Admin\AppData\Roaming\WindowsSidebarb\WindowsSidebarb.exe"10⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\WindowsSidebarb\WindowsSidebarb.exeC:\Users\Admin\AppData\Roaming\WindowsSidebarb\WindowsSidebarb.exe11⤵
- Executes dropped EXE
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C:\Windows\system32\LogonUI.exe"LogonUI.exe" /flags:0x01⤵
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C:\Windows\system32\LogonUI.exe"LogonUI.exe" /flags:0x11⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Roaming\WindowsSidebarb\WindowsSidebarb.exe
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C:\Users\Admin\AppData\Roaming\WindowsSidebarb\WindowsSidebarb.exe
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C:\Users\Admin\AppData\Roaming\WindowsSidebarb\WindowsSidebarb.exe
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C:\Users\Admin\AppData\Roaming\WindowsSidebarb\WindowsSidebarb.exe
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C:\Users\Admin\AppData\Roaming\WindowsSidebarb\WindowsSidebarb.exe
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\Users\Admin\AppData\Roaming\WindowsSidebarb\WindowsSidebarb.exe
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\Users\Admin\AppData\Roaming\WindowsSidebarb\WindowsSidebarb.exe
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\Users\Admin\AppData\Roaming\WindowsSidebarb\WindowsSidebarb.exe
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memory/1120-20-0x0000000000000000-mapping.dmp
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memory/1172-33-0x00000000028F0000-0x00000000028F1000-memory.dmpFilesize
4KB
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memory/1172-31-0x00000000028F0000-0x00000000028F1000-memory.dmpFilesize
4KB
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memory/1172-22-0x00000000028F0000-0x00000000028F1000-memory.dmpFilesize
4KB
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memory/1756-3-0x0000000000400000-0x000000000041D000-memory.dmpFilesize
116KB
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memory/1756-2-0x0000000000405FC3-mapping.dmp
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memory/1756-1-0x0000000000400000-0x000000000041D000-memory.dmpFilesize
116KB
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memory/1780-0-0x0000000000000000-mapping.dmp
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memory/1840-4-0x0000000000000000-mapping.dmp
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memory/1888-5-0x0000000000000000-mapping.dmp
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memory/1904-9-0x0000000000000000-mapping.dmp
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memory/1936-11-0x0000000000000000-mapping.dmp
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memory/1948-14-0x0000000000405FC3-mapping.dmp
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memory/1988-17-0x0000000000000000-mapping.dmp
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memory/2016-18-0x0000000000000000-mapping.dmp