Analysis
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max time kernel
183s -
max time network
192s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
25-11-2022 19:35
Static task
static1
Behavioral task
behavioral1
Sample
9c81a524dc840d456b64dd11d8cb0dc8f650abb4a96bb8165ce95eec6efbc662.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
9c81a524dc840d456b64dd11d8cb0dc8f650abb4a96bb8165ce95eec6efbc662.exe
Resource
win10v2004-20220812-en
General
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Target
9c81a524dc840d456b64dd11d8cb0dc8f650abb4a96bb8165ce95eec6efbc662.exe
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Size
527KB
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MD5
fb95992e04828da5305595de83eb7309
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SHA1
c1b1f5719248df79073dfb127737c1ac17a1a5b2
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SHA256
9c81a524dc840d456b64dd11d8cb0dc8f650abb4a96bb8165ce95eec6efbc662
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SHA512
5b326016e73faaf1d5668cf473619a1009cabbc481996eac516f2f813afaf5fe6dbb51ec41821065d047c65427e39c98d9bcff771c9cd35c775842765fde3b8c
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SSDEEP
12288:yNIQAPGsAqY9IMVYd38sJdpQHl0lY8Kf4GtKI:fPGSY91VwNJcFiq4M
Malware Config
Signatures
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Processes:
Chromium.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" Chromium.exe -
Executes dropped EXE 1 IoCs
Processes:
Chromium.exepid process 2404 Chromium.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
Chromium.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run Chromium.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Google Chromium = "\"C:\\Users\\Admin\\AppData\\Roaming\\Chromium.exe\"" Chromium.exe -
Processes:
Chromium.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" Chromium.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
Chromium.exepid process 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe 2404 Chromium.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
Processes:
9c81a524dc840d456b64dd11d8cb0dc8f650abb4a96bb8165ce95eec6efbc662.exeChromium.exepid process 2988 9c81a524dc840d456b64dd11d8cb0dc8f650abb4a96bb8165ce95eec6efbc662.exe 2988 9c81a524dc840d456b64dd11d8cb0dc8f650abb4a96bb8165ce95eec6efbc662.exe 2404 Chromium.exe 2404 Chromium.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
9c81a524dc840d456b64dd11d8cb0dc8f650abb4a96bb8165ce95eec6efbc662.exeChromium.exedescription pid process target process PID 2988 wrote to memory of 2404 2988 9c81a524dc840d456b64dd11d8cb0dc8f650abb4a96bb8165ce95eec6efbc662.exe Chromium.exe PID 2988 wrote to memory of 2404 2988 9c81a524dc840d456b64dd11d8cb0dc8f650abb4a96bb8165ce95eec6efbc662.exe Chromium.exe PID 2988 wrote to memory of 2404 2988 9c81a524dc840d456b64dd11d8cb0dc8f650abb4a96bb8165ce95eec6efbc662.exe Chromium.exe PID 2404 wrote to memory of 4500 2404 Chromium.exe schtasks.exe PID 2404 wrote to memory of 4500 2404 Chromium.exe schtasks.exe PID 2404 wrote to memory of 4500 2404 Chromium.exe schtasks.exe PID 2404 wrote to memory of 4848 2404 Chromium.exe schtasks.exe PID 2404 wrote to memory of 4848 2404 Chromium.exe schtasks.exe PID 2404 wrote to memory of 4848 2404 Chromium.exe schtasks.exe -
System policy modification 1 TTPs 2 IoCs
Processes:
Chromium.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System Chromium.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" Chromium.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\9c81a524dc840d456b64dd11d8cb0dc8f650abb4a96bb8165ce95eec6efbc662.exe"C:\Users\Admin\AppData\Local\Temp\9c81a524dc840d456b64dd11d8cb0dc8f650abb4a96bb8165ce95eec6efbc662.exe"1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2988 -
C:\Users\Admin\AppData\Roaming\Chromium.exeC:\Users\Admin\AppData\Roaming\Chromium.exe2⤵
- UAC bypass
- Executes dropped EXE
- Adds Run key to start application
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- System policy modification
PID:2404 -
C:\Windows\SysWOW64\schtasks.exeschtasks /Delete /TN GoogleUpdateTaskMachineCore /F3⤵PID:4500
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C:\Windows\SysWOW64\schtasks.exeschtasks /Delete /TN GoogleUpdateTaskMachineUA /F3⤵PID:4848
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Roaming\Chromium.exeFilesize
527KB
MD5fb95992e04828da5305595de83eb7309
SHA1c1b1f5719248df79073dfb127737c1ac17a1a5b2
SHA2569c81a524dc840d456b64dd11d8cb0dc8f650abb4a96bb8165ce95eec6efbc662
SHA5125b326016e73faaf1d5668cf473619a1009cabbc481996eac516f2f813afaf5fe6dbb51ec41821065d047c65427e39c98d9bcff771c9cd35c775842765fde3b8c
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C:\Users\Admin\AppData\Roaming\Chromium.exeFilesize
527KB
MD5fb95992e04828da5305595de83eb7309
SHA1c1b1f5719248df79073dfb127737c1ac17a1a5b2
SHA2569c81a524dc840d456b64dd11d8cb0dc8f650abb4a96bb8165ce95eec6efbc662
SHA5125b326016e73faaf1d5668cf473619a1009cabbc481996eac516f2f813afaf5fe6dbb51ec41821065d047c65427e39c98d9bcff771c9cd35c775842765fde3b8c
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memory/2404-132-0x0000000000000000-mapping.dmp
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memory/4500-135-0x0000000000000000-mapping.dmp
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memory/4848-136-0x0000000000000000-mapping.dmp