Analysis
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max time kernel
159s -
max time network
139s -
platform
windows7_x64 -
resource
win7-20220718-en -
resource tags
arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-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 3 IoCs
Processes:
resource yara_rule C:\Users\Admin\AppData\Roaming\Install\Host.exe netwire \Users\Admin\AppData\Roaming\Install\Host.exe netwire \Users\Admin\AppData\Roaming\Install\Host.exe netwire -
Executes dropped EXE 1 IoCs
Processes:
Host.exepid process 956 Host.exe -
Loads dropped DLL 2 IoCs
Processes:
a1b7cfc03581e21150c1e33bba0ac6bd3332684512c8b9bcb2789db8a88659f8.exepid process 2044 a1b7cfc03581e21150c1e33bba0ac6bd3332684512c8b9bcb2789db8a88659f8.exe 2044 a1b7cfc03581e21150c1e33bba0ac6bd3332684512c8b9bcb2789db8a88659f8.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
Host.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-3762437355-3468409815-1164039494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ Host.exe Set value (str) \REGISTRY\USER\S-1-5-21-3762437355-3468409815-1164039494-1000\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 4 IoCs
Processes:
a1b7cfc03581e21150c1e33bba0ac6bd3332684512c8b9bcb2789db8a88659f8.exedescription pid process target process PID 2044 wrote to memory of 956 2044 a1b7cfc03581e21150c1e33bba0ac6bd3332684512c8b9bcb2789db8a88659f8.exe Host.exe PID 2044 wrote to memory of 956 2044 a1b7cfc03581e21150c1e33bba0ac6bd3332684512c8b9bcb2789db8a88659f8.exe Host.exe PID 2044 wrote to memory of 956 2044 a1b7cfc03581e21150c1e33bba0ac6bd3332684512c8b9bcb2789db8a88659f8.exe Host.exe PID 2044 wrote to memory of 956 2044 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⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2044 -
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:956
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
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Filesize
106KB
MD5d211ed9506d0b95e7f51a69311acb0ed
SHA1df1b5a3e71e5de7f00433aa69bc1a88e7d8ac745
SHA256a1b7cfc03581e21150c1e33bba0ac6bd3332684512c8b9bcb2789db8a88659f8
SHA512179ae1610a4491a3d570425e55a96ea0ad688ced4ce07d5f273940b38568ff892bb09e36c9492fd0b499b76f73d400c4170bcd2e565064b9c29e3425e3fe8644