Analysis
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max time kernel
178s -
max time network
191s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
23-11-2022 17:01
Static task
static1
Behavioral task
behavioral1
Sample
9d79ad5db1f8bf49e2f8d5a33d2e3ef1b92af8f2a27ef0731df6f3cdfa14b1a7.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
9d79ad5db1f8bf49e2f8d5a33d2e3ef1b92af8f2a27ef0731df6f3cdfa14b1a7.exe
Resource
win10v2004-20220812-en
General
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Target
9d79ad5db1f8bf49e2f8d5a33d2e3ef1b92af8f2a27ef0731df6f3cdfa14b1a7.exe
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Size
40KB
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MD5
5aec4dcb3f9b8f49c96f54e6ea6a19c0
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SHA1
869a4154881b9781447b5b4e4532c567fbdaf187
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SHA256
9d79ad5db1f8bf49e2f8d5a33d2e3ef1b92af8f2a27ef0731df6f3cdfa14b1a7
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SHA512
c382d5e9e59279a25807cfac115239f42ea8cb105dae1b29ac57639a390b074b75465a8f9cf4a6a46c8a35f2c7be6a661b2c2184130cf01fc4fb3852d468ee8e
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SSDEEP
384:wXkDATRxyWPD16TrTPbpm1h8iemYJoGkvvGd2m6FqXthuPpSX27LW7FJDlKNAUTt:+pRxymD1uVLKeyMXXuGXkSL
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
Processes:
winlogon.exepid process 1640 winlogon.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
9d79ad5db1f8bf49e2f8d5a33d2e3ef1b92af8f2a27ef0731df6f3cdfa14b1a7.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation 9d79ad5db1f8bf49e2f8d5a33d2e3ef1b92af8f2a27ef0731df6f3cdfa14b1a7.exe -
Adds Run key to start application 2 TTPs 4 IoCs
Processes:
winlogon.exedescription ioc process Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run winlogon.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\NVIDIA Media Center Library = "C:\\Users\\Admin\\Admin1\\winlogon.exe" winlogon.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run winlogon.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NVIDIA Media Center Library = "C:\\Users\\Admin\\Admin1\\winlogon.exe" winlogon.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
9d79ad5db1f8bf49e2f8d5a33d2e3ef1b92af8f2a27ef0731df6f3cdfa14b1a7.exewinlogon.exepid process 4748 9d79ad5db1f8bf49e2f8d5a33d2e3ef1b92af8f2a27ef0731df6f3cdfa14b1a7.exe 1640 winlogon.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
9d79ad5db1f8bf49e2f8d5a33d2e3ef1b92af8f2a27ef0731df6f3cdfa14b1a7.exedescription pid process target process PID 4748 wrote to memory of 1640 4748 9d79ad5db1f8bf49e2f8d5a33d2e3ef1b92af8f2a27ef0731df6f3cdfa14b1a7.exe winlogon.exe PID 4748 wrote to memory of 1640 4748 9d79ad5db1f8bf49e2f8d5a33d2e3ef1b92af8f2a27ef0731df6f3cdfa14b1a7.exe winlogon.exe PID 4748 wrote to memory of 1640 4748 9d79ad5db1f8bf49e2f8d5a33d2e3ef1b92af8f2a27ef0731df6f3cdfa14b1a7.exe winlogon.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\9d79ad5db1f8bf49e2f8d5a33d2e3ef1b92af8f2a27ef0731df6f3cdfa14b1a7.exe"C:\Users\Admin\AppData\Local\Temp\9d79ad5db1f8bf49e2f8d5a33d2e3ef1b92af8f2a27ef0731df6f3cdfa14b1a7.exe"1⤵
- Checks computer location settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4748 -
C:\Users\Admin\Admin1\winlogon.exe"C:\Users\Admin\Admin1\winlogon.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetWindowsHookEx
PID:1640
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Users\Admin\Admin1\winlogon.exeFilesize
40KB
MD55aec4dcb3f9b8f49c96f54e6ea6a19c0
SHA1869a4154881b9781447b5b4e4532c567fbdaf187
SHA2569d79ad5db1f8bf49e2f8d5a33d2e3ef1b92af8f2a27ef0731df6f3cdfa14b1a7
SHA512c382d5e9e59279a25807cfac115239f42ea8cb105dae1b29ac57639a390b074b75465a8f9cf4a6a46c8a35f2c7be6a661b2c2184130cf01fc4fb3852d468ee8e
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C:\Users\Admin\Admin1\winlogon.exeFilesize
40KB
MD55aec4dcb3f9b8f49c96f54e6ea6a19c0
SHA1869a4154881b9781447b5b4e4532c567fbdaf187
SHA2569d79ad5db1f8bf49e2f8d5a33d2e3ef1b92af8f2a27ef0731df6f3cdfa14b1a7
SHA512c382d5e9e59279a25807cfac115239f42ea8cb105dae1b29ac57639a390b074b75465a8f9cf4a6a46c8a35f2c7be6a661b2c2184130cf01fc4fb3852d468ee8e
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memory/1640-134-0x0000000000000000-mapping.dmp