Analysis
- max time kernel
148s - max time network
141s - platform
windows7_x64 - resource
win7 - submitted
19/07/2020, 16:35
Static task
static1
Behavioral task
behavioral1
Sample
chthonic_2.23.14.4.vir.exe
Resource
win7
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
chthonic_2.23.14.4.vir.exe
Resource
win10
windows10_x64
0 signatures
0 seconds
General
- Target chthonic_2.23.14.4.vir.exe
- Size 308KB
- Sample200719-bdtegq4wds
- SHA256 3dc6116deb18fa9aec4e567b26ca77b9f7681cbdb2b6f29ce1665fcfd8b8f5ce
- MD5 a163c669174cd18fda083d8819d10e6a
- SHA1 4aaaafbee73e9a98231cd74815cac9d70c9d1eaf
- SHA512 676e485950e96f0a436a60ff7ec1b5bdc60ad90fb2fb8e920e10c9929ff362656d10c020f6b9ed8c095e7923a706462eb8fe17fb426fc02b7d77cf96cf9ae8d9
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Signatures
- Suspicious use of UnmapMainImage 1 IoCs
pid Process 892 chthonic_2.23.14.4.vir.exe - Deletes itself 1 IoCs
pid Process 1296 msiexec.exe - Adds policy Run key to start application 2 TTPs 2 IoCs
description 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\WindowsSidebarR = "C:\\ProgramData\\Windows Sidebar\\WindowsSidebarR.exe" msiexec.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Internet Explorer\PhishingFilter msiexec.exe 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\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 Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Internet Explorer\PhishingFilter\EnabledV9 = "0" msiexec.exe - System policy modification 1 TTPs 5 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\HideSCAHealth = "1" 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 Key created \REGISTRY\MACHINE\software\microsoft\windows\currentversion\policies\Explorer msiexec.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\TaskbarNoNotification = "1" msiexec.exe - Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 892 wrote to memory of 1296 892 chthonic_2.23.14.4.vir.exe 24 PID 892 wrote to memory of 1296 892 chthonic_2.23.14.4.vir.exe 24 PID 892 wrote to memory of 1296 892 chthonic_2.23.14.4.vir.exe 24 PID 892 wrote to memory of 1296 892 chthonic_2.23.14.4.vir.exe 24 PID 892 wrote to memory of 1296 892 chthonic_2.23.14.4.vir.exe 24 PID 892 wrote to memory of 1296 892 chthonic_2.23.14.4.vir.exe 24 PID 892 wrote to memory of 1296 892 chthonic_2.23.14.4.vir.exe 24 PID 892 wrote to memory of 1296 892 chthonic_2.23.14.4.vir.exe 24 - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1296 msiexec.exe 1296 msiexec.exe - Blacklisted process makes network request 14 IoCs
flow pid Process 1 1296 msiexec.exe 2 1296 msiexec.exe 3 1296 msiexec.exe 4 1296 msiexec.exe 5 1296 msiexec.exe 8 1296 msiexec.exe 11 1296 msiexec.exe 14 1296 msiexec.exe 15 1296 msiexec.exe 16 1296 msiexec.exe 17 1296 msiexec.exe 20 1296 msiexec.exe 21 1296 msiexec.exe 22 1296 msiexec.exe - Disables taskbar notifications via registry modification
-
description 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
Processes
-
C:\Users\Admin\AppData\Local\Temp\chthonic_2.23.14.4.vir.exe"C:\Users\Admin\AppData\Local\Temp\chthonic_2.23.14.4.vir.exe"1⤵
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:892 -
C:\Windows\SysWOW64\msiexec.exemsiexec.exe2⤵
- Deletes itself
- Adds policy Run key to start application
- Modifies Internet Explorer settings
- System policy modification
- Suspicious behavior: EnumeratesProcesses
- Blacklisted process makes network request
- Checks whether UAC is enabled
PID:1296
-