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Analysis
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max time kernel
150s -
max time network
52s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
29/11/2022, 16:42
Static task
static1
Behavioral task
behavioral1
Sample
434f55025791d8854edcf75ee9b0cdcb5834269c5799b988434af161fe8582d1.exe
Resource
win7-20220901-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
434f55025791d8854edcf75ee9b0cdcb5834269c5799b988434af161fe8582d1.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
434f55025791d8854edcf75ee9b0cdcb5834269c5799b988434af161fe8582d1.exe
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Size
304KB
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MD5
758044c649d49138161b78500cc806f4
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SHA1
210c74af6afe36b11cb2babb036651b0374d65bf
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SHA256
434f55025791d8854edcf75ee9b0cdcb5834269c5799b988434af161fe8582d1
-
SHA512
1c25c22e475d462616c020279caa87d3c5b26bcc8be538028306d9a021ef158d4936fd5d2699211411ee93281fd0788eb13546f403572301654535e0e247785d
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SSDEEP
3072:Hff1i2Dwhe6YIRnbXtcU7n4zKqc+5k1op2aEaDFHT+7pvPxvGLY:Yxbz+kxla8xn
Score
10/10
Malware Config
Signatures
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Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" lexow.exe Set value (int) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 434f55025791d8854edcf75ee9b0cdcb5834269c5799b988434af161fe8582d1.exe -
Executes dropped EXE 1 IoCs
pid Process 900 lexow.exe -
Loads dropped DLL 2 IoCs
pid Process 1552 434f55025791d8854edcf75ee9b0cdcb5834269c5799b988434af161fe8582d1.exe 1552 434f55025791d8854edcf75ee9b0cdcb5834269c5799b988434af161fe8582d1.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\lexow = "C:\\Users\\Admin\\lexow.exe /p" lexow.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 434f55025791d8854edcf75ee9b0cdcb5834269c5799b988434af161fe8582d1.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\lexow = "C:\\Users\\Admin\\lexow.exe /z" lexow.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\lexow = "C:\\Users\\Admin\\lexow.exe /u" lexow.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\lexow = "C:\\Users\\Admin\\lexow.exe /e" lexow.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\lexow = "C:\\Users\\Admin\\lexow.exe /f" lexow.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\lexow = "C:\\Users\\Admin\\lexow.exe /i" lexow.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\lexow = "C:\\Users\\Admin\\lexow.exe /x" lexow.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\lexow = "C:\\Users\\Admin\\lexow.exe /h" lexow.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\lexow = "C:\\Users\\Admin\\lexow.exe /g" lexow.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\lexow = "C:\\Users\\Admin\\lexow.exe /c" lexow.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\lexow = "C:\\Users\\Admin\\lexow.exe /o" lexow.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\lexow = "C:\\Users\\Admin\\lexow.exe /k" lexow.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\lexow = "C:\\Users\\Admin\\lexow.exe /m" lexow.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\lexow = "C:\\Users\\Admin\\lexow.exe /r" lexow.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\lexow = "C:\\Users\\Admin\\lexow.exe /y" lexow.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\lexow = "C:\\Users\\Admin\\lexow.exe /s" lexow.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\lexow = "C:\\Users\\Admin\\lexow.exe /t" lexow.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\lexow = "C:\\Users\\Admin\\lexow.exe /l" lexow.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\lexow = "C:\\Users\\Admin\\lexow.exe /j" lexow.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\lexow = "C:\\Users\\Admin\\lexow.exe /w" 434f55025791d8854edcf75ee9b0cdcb5834269c5799b988434af161fe8582d1.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\lexow = "C:\\Users\\Admin\\lexow.exe /a" lexow.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\lexow = "C:\\Users\\Admin\\lexow.exe /w" lexow.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\lexow = "C:\\Users\\Admin\\lexow.exe /v" lexow.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ lexow.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\lexow = "C:\\Users\\Admin\\lexow.exe /b" lexow.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\lexow = "C:\\Users\\Admin\\lexow.exe /n" lexow.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\lexow = "C:\\Users\\Admin\\lexow.exe /q" lexow.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\lexow = "C:\\Users\\Admin\\lexow.exe /d" lexow.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1552 434f55025791d8854edcf75ee9b0cdcb5834269c5799b988434af161fe8582d1.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe 900 lexow.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1552 434f55025791d8854edcf75ee9b0cdcb5834269c5799b988434af161fe8582d1.exe 900 lexow.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1552 wrote to memory of 900 1552 434f55025791d8854edcf75ee9b0cdcb5834269c5799b988434af161fe8582d1.exe 26 PID 1552 wrote to memory of 900 1552 434f55025791d8854edcf75ee9b0cdcb5834269c5799b988434af161fe8582d1.exe 26 PID 1552 wrote to memory of 900 1552 434f55025791d8854edcf75ee9b0cdcb5834269c5799b988434af161fe8582d1.exe 26 PID 1552 wrote to memory of 900 1552 434f55025791d8854edcf75ee9b0cdcb5834269c5799b988434af161fe8582d1.exe 26
Processes
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C:\Users\Admin\AppData\Local\Temp\434f55025791d8854edcf75ee9b0cdcb5834269c5799b988434af161fe8582d1.exe"C:\Users\Admin\AppData\Local\Temp\434f55025791d8854edcf75ee9b0cdcb5834269c5799b988434af161fe8582d1.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1552 -
C:\Users\Admin\lexow.exe"C:\Users\Admin\lexow.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:900
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
304KB
MD53234bd987d3418e824aa5ad1cc2c773b
SHA1b0af80dbb206e43410c0c88c55722056a60361bf
SHA25619698bb13fe50a9888391b6cf464c4403e6ad37028e407f531ffa078e805eb17
SHA5125fd25517f8a144ef9a9e5c238815552ed02c9ebb43fe27012066fdeaf47af9f3db15b043dc6142d1985454d15a93b0ec866d65c2b00c7dddb1d9e4f672a96ac1
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Filesize
304KB
MD53234bd987d3418e824aa5ad1cc2c773b
SHA1b0af80dbb206e43410c0c88c55722056a60361bf
SHA25619698bb13fe50a9888391b6cf464c4403e6ad37028e407f531ffa078e805eb17
SHA5125fd25517f8a144ef9a9e5c238815552ed02c9ebb43fe27012066fdeaf47af9f3db15b043dc6142d1985454d15a93b0ec866d65c2b00c7dddb1d9e4f672a96ac1
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Filesize
304KB
MD53234bd987d3418e824aa5ad1cc2c773b
SHA1b0af80dbb206e43410c0c88c55722056a60361bf
SHA25619698bb13fe50a9888391b6cf464c4403e6ad37028e407f531ffa078e805eb17
SHA5125fd25517f8a144ef9a9e5c238815552ed02c9ebb43fe27012066fdeaf47af9f3db15b043dc6142d1985454d15a93b0ec866d65c2b00c7dddb1d9e4f672a96ac1
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Filesize
304KB
MD53234bd987d3418e824aa5ad1cc2c773b
SHA1b0af80dbb206e43410c0c88c55722056a60361bf
SHA25619698bb13fe50a9888391b6cf464c4403e6ad37028e407f531ffa078e805eb17
SHA5125fd25517f8a144ef9a9e5c238815552ed02c9ebb43fe27012066fdeaf47af9f3db15b043dc6142d1985454d15a93b0ec866d65c2b00c7dddb1d9e4f672a96ac1