Analysis
- max time kernel
140s - max time network
120s - platform
windows7_x64 - resource
win7 - submitted
19/07/2020, 19:42
Static task
static1
Behavioral task
behavioral1
Sample
chthonic_2.23.17.8.vir.exe
Resource
win7
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
chthonic_2.23.17.8.vir.exe
Resource
win10v200430
0 signatures
0 seconds
General
- Target chthonic_2.23.17.8.vir.exe
- Size 414KB
- Sample200719-1sxpyhnd4x
- SHA256 bbeaa86003be4d14ff5643c47d20ca8a44e4d7e655bda8a93439fbe7dd4e9066
- MD5 1f9b928b344e22ea51231035d780c098
- SHA1 b9fea85e753702620038d7ae498fe78360dddd1c
- SHA512 a8cd355326908b9c4161e8df7c9177bd7210049a52009d77ab4b15388ab8d1721607cfffbc7666e5ca17d44d59d834f8e5d1696e7b1f932e7c4dce08ee66484d
- MD5 SHA1 SHA512
Score
8/10
Malware Config
Signatures
- Suspicious use of WriteProcessMemory 16 IoCs
description pid Process procid_target PID 1612 wrote to memory of 1976 1612 chthonic_2.23.17.8.vir.exe 26 PID 1612 wrote to memory of 1976 1612 chthonic_2.23.17.8.vir.exe 26 PID 1612 wrote to memory of 1976 1612 chthonic_2.23.17.8.vir.exe 26 PID 1612 wrote to memory of 1976 1612 chthonic_2.23.17.8.vir.exe 26 PID 1612 wrote to memory of 1976 1612 chthonic_2.23.17.8.vir.exe 26 PID 1612 wrote to memory of 1976 1612 chthonic_2.23.17.8.vir.exe 26 PID 1612 wrote to memory of 1976 1612 chthonic_2.23.17.8.vir.exe 26 PID 1612 wrote to memory of 1976 1612 chthonic_2.23.17.8.vir.exe 26 PID 1976 wrote to memory of 1844 1976 msiexec.exe 27 PID 1976 wrote to memory of 1844 1976 msiexec.exe 27 PID 1976 wrote to memory of 1844 1976 msiexec.exe 27 PID 1976 wrote to memory of 1844 1976 msiexec.exe 27 PID 1844 wrote to memory of 2004 1844 cmd.exe 29 PID 1844 wrote to memory of 2004 1844 cmd.exe 29 PID 1844 wrote to memory of 2004 1844 cmd.exe 29 PID 1844 wrote to memory of 2004 1844 cmd.exe 29 - Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 1976 msiexec.exe -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA msiexec.exe - Checks for any installed AV software in registry 1 TTPs 4 IoCs
description ioc Process 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 - Loads dropped DLL 3 IoCs
pid Process 1612 chthonic_2.23.17.8.vir.exe 1976 msiexec.exe 1844 cmd.exe - Suspicious behavior: GetForegroundWindowSpam 2 IoCs
pid Process 1612 chthonic_2.23.17.8.vir.exe 1976 msiexec.exe - Deletes itself 1 IoCs
pid Process 1976 msiexec.exe - Executes dropped EXE 1 IoCs
pid Process 2004 Adobed.exe - Adds Run key to start application 2 TTPs 2 IoCs
description 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\Adobed = "C:\\Users\\Admin\\AppData\\Roaming\\Adobed\\Adobed.exe" msiexec.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\chthonic_2.23.17.8.vir.exe"C:\Users\Admin\AppData\Local\Temp\chthonic_2.23.17.8.vir.exe"1⤵
- Suspicious use of WriteProcessMemory
- Loads dropped DLL
- Suspicious behavior: GetForegroundWindowSpam
PID:1612 -
C:\Windows\SysWOW64\msiexec.exeC:\Windows\system32\msiexec.exe2⤵
- Suspicious use of WriteProcessMemory
- Suspicious behavior: EnumeratesProcesses
- Checks whether UAC is enabled
- Checks for any installed AV software in registry
- Loads dropped DLL
- Suspicious behavior: GetForegroundWindowSpam
- Deletes itself
- Adds Run key to start application
PID:1976 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c "C:\Users\Admin\AppData\Roaming\Adobed\Adobed.exe"3⤵
- Suspicious use of WriteProcessMemory
- Loads dropped DLL
PID:1844 -
C:\Users\Admin\AppData\Roaming\Adobed\Adobed.exeC:\Users\Admin\AppData\Roaming\Adobed\Adobed.exe4⤵
- Executes dropped EXE
PID:2004
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