Analysis
-
max time kernel
138s -
max time network
155s -
platform
windows7_x64 -
resource
win7v200430 -
submitted
19-07-2020 17:13
Static task
static1
Behavioral task
behavioral1
Sample
chthonic_2.23.12.1.vir.exe
Resource
win7v200430
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
chthonic_2.23.12.1.vir.exe
Resource
win10
windows10_x64
0 signatures
0 seconds
General
-
Target
chthonic_2.23.12.1.vir.exe
-
Size
188KB
-
MD5
fef16df968936d5d5a0c9972aba5ff23
-
SHA1
52caaf61150ce8ea9a2fd7a20bd0e233936a0563
-
SHA256
4480bcbacb98c86980a5d9bd9f62ccc286e2e0e3bf5696991b37720648dcb186
-
SHA512
f51b9e2405398c6d3f20dfac542b4b3f9679f31f028339fb59fae64a20b2ae17f9024c8d764dec7e0bc83e5bfbfdce90a5d8ce75775eb8f7e7bac1640f74941e
Score
10/10
Malware Config
Signatures
-
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
chthonic_2.23.12.1.vir.exedescription pid process target process PID 1388 wrote to memory of 1424 1388 chthonic_2.23.12.1.vir.exe msiexec.exe PID 1388 wrote to memory of 1424 1388 chthonic_2.23.12.1.vir.exe msiexec.exe PID 1388 wrote to memory of 1424 1388 chthonic_2.23.12.1.vir.exe msiexec.exe PID 1388 wrote to memory of 1424 1388 chthonic_2.23.12.1.vir.exe msiexec.exe PID 1388 wrote to memory of 1424 1388 chthonic_2.23.12.1.vir.exe msiexec.exe PID 1388 wrote to memory of 1424 1388 chthonic_2.23.12.1.vir.exe msiexec.exe PID 1388 wrote to memory of 1424 1388 chthonic_2.23.12.1.vir.exe msiexec.exe PID 1388 wrote to memory of 1424 1388 chthonic_2.23.12.1.vir.exe msiexec.exe -
Deletes itself 1 IoCs
Processes:
msiexec.exepid process 1424 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 -
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\RInternetExplorer = "C:\\ProgramData\\Internet Explorer\\RInternetExplorer.exe" msiexec.exe -
Disables taskbar notifications via registry modification
-
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
msiexec.exepid process 1424 msiexec.exe 1424 msiexec.exe 1424 msiexec.exe -
Blacklisted process makes network request 13 IoCs
Processes:
msiexec.exeflow pid process 2 1424 msiexec.exe 3 1424 msiexec.exe 4 1424 msiexec.exe 5 1424 msiexec.exe 8 1424 msiexec.exe 9 1424 msiexec.exe 10 1424 msiexec.exe 11 1424 msiexec.exe 12 1424 msiexec.exe 13 1424 msiexec.exe 14 1424 msiexec.exe 15 1424 msiexec.exe 16 1424 msiexec.exe -
Processes:
msiexec.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-910373003-3952921535-3480519689-1000\Software\Microsoft\Internet Explorer\PhishingFilter msiexec.exe Set value (int) \REGISTRY\USER\S-1-5-21-910373003-3952921535-3480519689-1000\Software\Microsoft\Internet Explorer\PhishingFilter\EnabledV8 = "0" msiexec.exe Set value (int) \REGISTRY\USER\S-1-5-21-910373003-3952921535-3480519689-1000\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
Processes:
msiexec.exedescription 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
Processes
-
C:\Users\Admin\AppData\Local\Temp\chthonic_2.23.12.1.vir.exe"C:\Users\Admin\AppData\Local\Temp\chthonic_2.23.12.1.vir.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\msiexec.exemsiexec.exe2⤵
- Deletes itself
- Checks whether UAC is enabled
- Adds policy Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Blacklisted process makes network request
- Modifies Internet Explorer settings
- System policy modification
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
memory/1424-0-0x0000000000000000-mapping.dmp