Analysis
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max time kernel
136s -
max time network
16s -
platform
windows7_x64 -
resource
win7v200430 -
submitted
19-07-2020 19:42
Static task
static1
Behavioral task
behavioral1
Sample
chthonic_2.0.8.1.vir.exe
Resource
win7v200430
Behavioral task
behavioral2
Sample
chthonic_2.0.8.1.vir.exe
Resource
win10
General
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Target
chthonic_2.0.8.1.vir.exe
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Size
217KB
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MD5
c4b802049dbdf2bb8a299d68715fac43
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SHA1
177aeba07cecfbffb1697e051a9d5b920965813a
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SHA256
cc841ea2d1abc98b1e89294c3a0dbef1b04e58b4c9b6f4b0f9ad33adef1d1309
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SHA512
3f93115f2fd801a427be5f0abf6880793e85d71c60df14c0e02db14a8548781b9811c689384c0c9fc706d5522e6b3158270e49106acad5fa522f06ccf046747a
Malware Config
Signatures
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Identifies Wine through registry keys 2 TTPs 2 IoCs
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
Processes:
chthonic_2.0.8.1.vir.exemsiexec.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-910373003-3952921535-3480519689-1000\Software\WINE chthonic_2.0.8.1.vir.exe Key opened \REGISTRY\USER\S-1-5-21-910373003-3952921535-3480519689-1000\Software\WINE msiexec.exe -
System policy modification 1 TTPs 5 IoCs
Processes:
msiexec.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer msiexec.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\TaskbarNoNotification = "0" msiexec.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\HideSCAHealth = "0" msiexec.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\system msiexec.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" msiexec.exe -
Disables taskbar notifications via registry modification
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Suspicious behavior: EnumeratesProcesses 5 IoCs
Processes:
chthonic_2.0.8.1.vir.exemsiexec.exepid process 828 chthonic_2.0.8.1.vir.exe 828 chthonic_2.0.8.1.vir.exe 112 msiexec.exe 112 msiexec.exe 112 msiexec.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
Processes:
chthonic_2.0.8.1.vir.exemsiexec.exedescription pid process Token: SeDebugPrivilege 828 chthonic_2.0.8.1.vir.exe Token: SeBackupPrivilege 828 chthonic_2.0.8.1.vir.exe Token: SeRestorePrivilege 828 chthonic_2.0.8.1.vir.exe Token: SeDebugPrivilege 112 msiexec.exe Token: SeBackupPrivilege 112 msiexec.exe Token: SeRestorePrivilege 112 msiexec.exe -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
chthonic_2.0.8.1.vir.exedescription pid process target process PID 828 wrote to memory of 112 828 chthonic_2.0.8.1.vir.exe msiexec.exe PID 828 wrote to memory of 112 828 chthonic_2.0.8.1.vir.exe msiexec.exe PID 828 wrote to memory of 112 828 chthonic_2.0.8.1.vir.exe msiexec.exe PID 828 wrote to memory of 112 828 chthonic_2.0.8.1.vir.exe msiexec.exe PID 828 wrote to memory of 112 828 chthonic_2.0.8.1.vir.exe msiexec.exe PID 828 wrote to memory of 112 828 chthonic_2.0.8.1.vir.exe msiexec.exe PID 828 wrote to memory of 112 828 chthonic_2.0.8.1.vir.exe msiexec.exe -
Suspicious behavior: MapViewOfSection 21 IoCs
Processes:
chthonic_2.0.8.1.vir.exemsiexec.exepid process 828 chthonic_2.0.8.1.vir.exe 828 chthonic_2.0.8.1.vir.exe 112 msiexec.exe 112 msiexec.exe 112 msiexec.exe 112 msiexec.exe 112 msiexec.exe 112 msiexec.exe 112 msiexec.exe 112 msiexec.exe 112 msiexec.exe 112 msiexec.exe 112 msiexec.exe 112 msiexec.exe 112 msiexec.exe 112 msiexec.exe 112 msiexec.exe 112 msiexec.exe 112 msiexec.exe 112 msiexec.exe 112 msiexec.exe -
Adds policy Run key to start application 2 TTPs 2 IoCs
Processes:
msiexec.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run msiexec.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\2503528034 = "C:\\PROGRA~3\\Mozilla\\MozillaXpers.exe" msiexec.exe -
Suspicious behavior: RenamesItself 1 IoCs
Processes:
msiexec.exepid process 112 msiexec.exe -
Blacklisted process makes network request 12 IoCs
Processes:
msiexec.exeflow pid process 1 112 msiexec.exe 2 112 msiexec.exe 3 112 msiexec.exe 5 112 msiexec.exe 6 112 msiexec.exe 7 112 msiexec.exe 9 112 msiexec.exe 10 112 msiexec.exe 11 112 msiexec.exe 13 112 msiexec.exe 14 112 msiexec.exe 15 112 msiexec.exe -
Processes:
msiexec.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA msiexec.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" msiexec.exe -
Modifies visiblity of hidden/system files in Explorer 2 TTPs
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Drops file in Program Files directory 1 IoCs
Processes:
msiexec.exedescription ioc process File opened for modification C:\PROGRA~3\Mozilla\MozillaXpers.exe msiexec.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\chthonic_2.0.8.1.vir.exe"C:\Users\Admin\AppData\Local\Temp\chthonic_2.0.8.1.vir.exe"1⤵
- Identifies Wine through registry keys
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- Suspicious behavior: MapViewOfSection
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C:\Windows\SysWOW64\msiexec.exeC:\Windows\system32\msiexec.exe2⤵
- Identifies Wine through registry keys
- System policy modification
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious behavior: MapViewOfSection
- Adds policy Run key to start application
- Suspicious behavior: RenamesItself
- Blacklisted process makes network request
- Checks whether UAC is enabled
- Drops file in Program Files directory