Analysis
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max time kernel
146s -
max time network
155s -
platform
windows7_x64 -
resource
win7 -
submitted
19-07-2020 17:23
Static task
static1
Behavioral task
behavioral1
Sample
chthonic_2.23.14.3.vir.exe
Resource
win7
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
chthonic_2.23.14.3.vir.exe
Resource
win10v200430
windows10_x64
0 signatures
0 seconds
General
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Target
chthonic_2.23.14.3.vir.exe
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Size
316KB
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MD5
c73bb0ecba9a48fa54ce209becf415a1
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SHA1
71323430b7752734c495e1bbb42889ebc041a5c8
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SHA256
5124f1b8847074cf927f1fe6dec6657a3a50c32e924f7ff915c926604c207b25
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SHA512
1aaaf0457a3453c5dc4ec9fbffe69816c412ac3ab987973a095873668688f82129d196f91a7b44ede0a9fcebf52bad9de84ad100b97a135ea77ed6fa21a37c1e
Score
10/10
Malware Config
Signatures
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Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
chthonic_2.23.14.3.vir.exedescription pid process Token: SeBackupPrivilege 284 chthonic_2.23.14.3.vir.exe Token: SeSecurityPrivilege 284 chthonic_2.23.14.3.vir.exe Token: SeSecurityPrivilege 284 chthonic_2.23.14.3.vir.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
chthonic_2.23.14.3.vir.exepid process 284 chthonic_2.23.14.3.vir.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
msiexec.exepid process 748 msiexec.exe 748 msiexec.exe -
Processes:
msiexec.exedescription ioc process 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 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 -
System policy modification 1 TTPs 5 IoCs
Processes:
msiexec.exedescription ioc process 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 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 -
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 -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
chthonic_2.23.14.3.vir.exedescription pid process target process PID 284 wrote to memory of 748 284 chthonic_2.23.14.3.vir.exe msiexec.exe PID 284 wrote to memory of 748 284 chthonic_2.23.14.3.vir.exe msiexec.exe PID 284 wrote to memory of 748 284 chthonic_2.23.14.3.vir.exe msiexec.exe PID 284 wrote to memory of 748 284 chthonic_2.23.14.3.vir.exe msiexec.exe PID 284 wrote to memory of 748 284 chthonic_2.23.14.3.vir.exe msiexec.exe PID 284 wrote to memory of 748 284 chthonic_2.23.14.3.vir.exe msiexec.exe PID 284 wrote to memory of 748 284 chthonic_2.23.14.3.vir.exe msiexec.exe PID 284 wrote to memory of 748 284 chthonic_2.23.14.3.vir.exe msiexec.exe -
Blacklisted process makes network request 8 IoCs
Processes:
msiexec.exeflow pid process 2 748 msiexec.exe 5 748 msiexec.exe 8 748 msiexec.exe 9 748 msiexec.exe 10 748 msiexec.exe 13 748 msiexec.exe 16 748 msiexec.exe 17 748 msiexec.exe -
Disables taskbar notifications via registry modification
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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\CWindowsMediaPlayer = "C:\\ProgramData\\Windows Media Player\\CWindowsMediaPlayer.exe" msiexec.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\chthonic_2.23.14.3.vir.exe"C:\Users\Admin\AppData\Local\Temp\chthonic_2.23.14.3.vir.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\msiexec.exemsiexec.exe2⤵
- Suspicious behavior: EnumeratesProcesses
- Modifies Internet Explorer settings
- System policy modification
- Checks whether UAC is enabled
- Blacklisted process makes network request
- Adds policy Run key to start application
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/748-0-0x0000000000000000-mapping.dmp