Analysis
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max time kernel
151s -
max time network
174s -
platform
windows10-2004_x64 -
resource
win10v2004-20220722-en -
resource tags
arch:x64arch:x86image:win10v2004-20220722-enlocale:en-usos:windows10-2004-x64system -
submitted
31-07-2022 07:07
Behavioral task
behavioral1
Sample
a1b7cfc03581e21150c1e33bba0ac6bd3332684512c8b9bcb2789db8a88659f8.exe
Resource
win7-20220718-en
Behavioral task
behavioral2
Sample
a1b7cfc03581e21150c1e33bba0ac6bd3332684512c8b9bcb2789db8a88659f8.exe
Resource
win10v2004-20220722-en
General
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Target
a1b7cfc03581e21150c1e33bba0ac6bd3332684512c8b9bcb2789db8a88659f8.exe
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Size
106KB
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MD5
d211ed9506d0b95e7f51a69311acb0ed
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SHA1
df1b5a3e71e5de7f00433aa69bc1a88e7d8ac745
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SHA256
a1b7cfc03581e21150c1e33bba0ac6bd3332684512c8b9bcb2789db8a88659f8
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SHA512
179ae1610a4491a3d570425e55a96ea0ad688ced4ce07d5f273940b38568ff892bb09e36c9492fd0b499b76f73d400c4170bcd2e565064b9c29e3425e3fe8644
Malware Config
Signatures
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NetWire RAT payload 2 IoCs
Processes:
resource yara_rule C:\Users\Admin\AppData\Roaming\Install\Host.exe netwire C:\Users\Admin\AppData\Roaming\Install\Host.exe netwire -
Executes dropped EXE 1 IoCs
Processes:
Host.exepid process 1592 Host.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
a1b7cfc03581e21150c1e33bba0ac6bd3332684512c8b9bcb2789db8a88659f8.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3463845317-933582289-45817732-1000\Control Panel\International\Geo\Nation a1b7cfc03581e21150c1e33bba0ac6bd3332684512c8b9bcb2789db8a88659f8.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
Host.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-3463845317-933582289-45817732-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ Host.exe Set value (str) \REGISTRY\USER\S-1-5-21-3463845317-933582289-45817732-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\windll = "C:\\Users\\Admin\\AppData\\Roaming\\Install\\Host.exe" Host.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 WriteProcessMemory 3 IoCs
Processes:
a1b7cfc03581e21150c1e33bba0ac6bd3332684512c8b9bcb2789db8a88659f8.exedescription pid process target process PID 404 wrote to memory of 1592 404 a1b7cfc03581e21150c1e33bba0ac6bd3332684512c8b9bcb2789db8a88659f8.exe Host.exe PID 404 wrote to memory of 1592 404 a1b7cfc03581e21150c1e33bba0ac6bd3332684512c8b9bcb2789db8a88659f8.exe Host.exe PID 404 wrote to memory of 1592 404 a1b7cfc03581e21150c1e33bba0ac6bd3332684512c8b9bcb2789db8a88659f8.exe Host.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\a1b7cfc03581e21150c1e33bba0ac6bd3332684512c8b9bcb2789db8a88659f8.exe"C:\Users\Admin\AppData\Local\Temp\a1b7cfc03581e21150c1e33bba0ac6bd3332684512c8b9bcb2789db8a88659f8.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:404 -
C:\Users\Admin\AppData\Roaming\Install\Host.exe"C:\Users\Admin\AppData\Roaming\Install\Host.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
PID:1592
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
106KB
MD5d211ed9506d0b95e7f51a69311acb0ed
SHA1df1b5a3e71e5de7f00433aa69bc1a88e7d8ac745
SHA256a1b7cfc03581e21150c1e33bba0ac6bd3332684512c8b9bcb2789db8a88659f8
SHA512179ae1610a4491a3d570425e55a96ea0ad688ced4ce07d5f273940b38568ff892bb09e36c9492fd0b499b76f73d400c4170bcd2e565064b9c29e3425e3fe8644
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Filesize
106KB
MD5d211ed9506d0b95e7f51a69311acb0ed
SHA1df1b5a3e71e5de7f00433aa69bc1a88e7d8ac745
SHA256a1b7cfc03581e21150c1e33bba0ac6bd3332684512c8b9bcb2789db8a88659f8
SHA512179ae1610a4491a3d570425e55a96ea0ad688ced4ce07d5f273940b38568ff892bb09e36c9492fd0b499b76f73d400c4170bcd2e565064b9c29e3425e3fe8644