Analysis
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max time kernel
152s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
02/12/2022, 19:20
Static task
static1
Behavioral task
behavioral1
Sample
345680786c000aaaac08b03ca531208f2778804676cc5f49ab4e42b23e74ea8e.exe
Resource
win7-20220812-en
windows7-x64
11 signatures
150 seconds
Behavioral task
behavioral2
Sample
345680786c000aaaac08b03ca531208f2778804676cc5f49ab4e42b23e74ea8e.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
11 signatures
150 seconds
General
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Target
345680786c000aaaac08b03ca531208f2778804676cc5f49ab4e42b23e74ea8e.exe
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Size
123KB
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MD5
9ae065b62b6ac69fdb3f01c0d945d370
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SHA1
ae8eab24167459f620a1b0bb533982012fd8917e
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SHA256
345680786c000aaaac08b03ca531208f2778804676cc5f49ab4e42b23e74ea8e
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SHA512
37d63c812220e85cfdec20fe985279c4dab6d14e469a6cf8ff8cb6ac7bf2541f020a8e6fa411fe755a27488c18ab2cfc62dd865270ba8b8e8b9603815c6cb0e3
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SSDEEP
3072:vNrjIvhH+ZeoMxSFb2NkbTWpD2npjq9rYzHX5R:vNoV+ZeJSttbTaGXHX/
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-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 345680786c000aaaac08b03ca531208f2778804676cc5f49ab4e42b23e74ea8e.exe Set value (int) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" yeeam.exe -
Executes dropped EXE 2 IoCs
pid Process 1036 yeeam.exe 2028 yeeam.exe -
Loads dropped DLL 2 IoCs
pid Process 888 345680786c000aaaac08b03ca531208f2778804676cc5f49ab4e42b23e74ea8e.exe 888 345680786c000aaaac08b03ca531208f2778804676cc5f49ab4e42b23e74ea8e.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\ yeeam.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\yeeam = "C:\\Users\\Admin\\yeeam.exe /p" yeeam.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\yeeam = "C:\\Users\\Admin\\yeeam.exe /h" yeeam.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\yeeam = "C:\\Users\\Admin\\yeeam.exe /t" yeeam.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 345680786c000aaaac08b03ca531208f2778804676cc5f49ab4e42b23e74ea8e.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\yeeam = "C:\\Users\\Admin\\yeeam.exe /d" yeeam.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\yeeam = "C:\\Users\\Admin\\yeeam.exe /x" yeeam.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\yeeam = "C:\\Users\\Admin\\yeeam.exe /c" yeeam.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\yeeam = "C:\\Users\\Admin\\yeeam.exe /q" yeeam.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\yeeam = "C:\\Users\\Admin\\yeeam.exe /s" yeeam.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\yeeam = "C:\\Users\\Admin\\yeeam.exe /t" 345680786c000aaaac08b03ca531208f2778804676cc5f49ab4e42b23e74ea8e.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\yeeam = "C:\\Users\\Admin\\yeeam.exe /b" yeeam.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\yeeam = "C:\\Users\\Admin\\yeeam.exe /w" yeeam.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\yeeam = "C:\\Users\\Admin\\yeeam.exe /y" yeeam.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\yeeam = "C:\\Users\\Admin\\yeeam.exe /u" yeeam.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\yeeam = "C:\\Users\\Admin\\yeeam.exe /n" yeeam.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\yeeam = "C:\\Users\\Admin\\yeeam.exe /r" yeeam.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\yeeam = "C:\\Users\\Admin\\yeeam.exe /g" yeeam.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\yeeam = "C:\\Users\\Admin\\yeeam.exe /j" yeeam.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\yeeam = "C:\\Users\\Admin\\yeeam.exe /z" yeeam.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\yeeam = "C:\\Users\\Admin\\yeeam.exe /m" yeeam.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\yeeam = "C:\\Users\\Admin\\yeeam.exe /e" yeeam.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\yeeam = "C:\\Users\\Admin\\yeeam.exe /l" yeeam.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\yeeam = "C:\\Users\\Admin\\yeeam.exe /k" yeeam.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\yeeam = "C:\\Users\\Admin\\yeeam.exe /f" yeeam.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\yeeam = "C:\\Users\\Admin\\yeeam.exe /v" yeeam.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\yeeam = "C:\\Users\\Admin\\yeeam.exe /a" yeeam.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\yeeam = "C:\\Users\\Admin\\yeeam.exe /o" yeeam.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\yeeam = "C:\\Users\\Admin\\yeeam.exe /i" yeeam.exe -
Maps connected drives based on registry 3 TTPs 4 IoCs
Disk information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum yeeam.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 yeeam.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum 345680786c000aaaac08b03ca531208f2778804676cc5f49ab4e42b23e74ea8e.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 345680786c000aaaac08b03ca531208f2778804676cc5f49ab4e42b23e74ea8e.exe -
Drops autorun.inf file 1 TTPs 1 IoCs
Malware can abuse Windows Autorun to spread further via attached volumes.
description ioc Process File opened for modification C:\Users\Admin\c\autorun.inf yeeam.exe -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 904 set thread context of 888 904 345680786c000aaaac08b03ca531208f2778804676cc5f49ab4e42b23e74ea8e.exe 27 PID 1036 set thread context of 2028 1036 yeeam.exe 29 -
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 888 345680786c000aaaac08b03ca531208f2778804676cc5f49ab4e42b23e74ea8e.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe 2028 yeeam.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 904 345680786c000aaaac08b03ca531208f2778804676cc5f49ab4e42b23e74ea8e.exe 888 345680786c000aaaac08b03ca531208f2778804676cc5f49ab4e42b23e74ea8e.exe 1036 yeeam.exe 2028 yeeam.exe -
Suspicious use of WriteProcessMemory 24 IoCs
description pid Process procid_target PID 904 wrote to memory of 888 904 345680786c000aaaac08b03ca531208f2778804676cc5f49ab4e42b23e74ea8e.exe 27 PID 904 wrote to memory of 888 904 345680786c000aaaac08b03ca531208f2778804676cc5f49ab4e42b23e74ea8e.exe 27 PID 904 wrote to memory of 888 904 345680786c000aaaac08b03ca531208f2778804676cc5f49ab4e42b23e74ea8e.exe 27 PID 904 wrote to memory of 888 904 345680786c000aaaac08b03ca531208f2778804676cc5f49ab4e42b23e74ea8e.exe 27 PID 904 wrote to memory of 888 904 345680786c000aaaac08b03ca531208f2778804676cc5f49ab4e42b23e74ea8e.exe 27 PID 904 wrote to memory of 888 904 345680786c000aaaac08b03ca531208f2778804676cc5f49ab4e42b23e74ea8e.exe 27 PID 904 wrote to memory of 888 904 345680786c000aaaac08b03ca531208f2778804676cc5f49ab4e42b23e74ea8e.exe 27 PID 904 wrote to memory of 888 904 345680786c000aaaac08b03ca531208f2778804676cc5f49ab4e42b23e74ea8e.exe 27 PID 904 wrote to memory of 888 904 345680786c000aaaac08b03ca531208f2778804676cc5f49ab4e42b23e74ea8e.exe 27 PID 904 wrote to memory of 888 904 345680786c000aaaac08b03ca531208f2778804676cc5f49ab4e42b23e74ea8e.exe 27 PID 888 wrote to memory of 1036 888 345680786c000aaaac08b03ca531208f2778804676cc5f49ab4e42b23e74ea8e.exe 28 PID 888 wrote to memory of 1036 888 345680786c000aaaac08b03ca531208f2778804676cc5f49ab4e42b23e74ea8e.exe 28 PID 888 wrote to memory of 1036 888 345680786c000aaaac08b03ca531208f2778804676cc5f49ab4e42b23e74ea8e.exe 28 PID 888 wrote to memory of 1036 888 345680786c000aaaac08b03ca531208f2778804676cc5f49ab4e42b23e74ea8e.exe 28 PID 1036 wrote to memory of 2028 1036 yeeam.exe 29 PID 1036 wrote to memory of 2028 1036 yeeam.exe 29 PID 1036 wrote to memory of 2028 1036 yeeam.exe 29 PID 1036 wrote to memory of 2028 1036 yeeam.exe 29 PID 1036 wrote to memory of 2028 1036 yeeam.exe 29 PID 1036 wrote to memory of 2028 1036 yeeam.exe 29 PID 1036 wrote to memory of 2028 1036 yeeam.exe 29 PID 1036 wrote to memory of 2028 1036 yeeam.exe 29 PID 1036 wrote to memory of 2028 1036 yeeam.exe 29 PID 1036 wrote to memory of 2028 1036 yeeam.exe 29
Processes
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C:\Users\Admin\AppData\Local\Temp\345680786c000aaaac08b03ca531208f2778804676cc5f49ab4e42b23e74ea8e.exe"C:\Users\Admin\AppData\Local\Temp\345680786c000aaaac08b03ca531208f2778804676cc5f49ab4e42b23e74ea8e.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:904 -
C:\Users\Admin\AppData\Local\Temp\345680786c000aaaac08b03ca531208f2778804676cc5f49ab4e42b23e74ea8e.exe722⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:888 -
C:\Users\Admin\yeeam.exe"C:\Users\Admin\yeeam.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1036 -
C:\Users\Admin\yeeam.exe724⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Maps connected drives based on registry
- Drops autorun.inf file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:2028
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
123KB
MD59ae065b62b6ac69fdb3f01c0d945d370
SHA1ae8eab24167459f620a1b0bb533982012fd8917e
SHA256345680786c000aaaac08b03ca531208f2778804676cc5f49ab4e42b23e74ea8e
SHA51237d63c812220e85cfdec20fe985279c4dab6d14e469a6cf8ff8cb6ac7bf2541f020a8e6fa411fe755a27488c18ab2cfc62dd865270ba8b8e8b9603815c6cb0e3
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Filesize
123KB
MD59ae065b62b6ac69fdb3f01c0d945d370
SHA1ae8eab24167459f620a1b0bb533982012fd8917e
SHA256345680786c000aaaac08b03ca531208f2778804676cc5f49ab4e42b23e74ea8e
SHA51237d63c812220e85cfdec20fe985279c4dab6d14e469a6cf8ff8cb6ac7bf2541f020a8e6fa411fe755a27488c18ab2cfc62dd865270ba8b8e8b9603815c6cb0e3
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Filesize
123KB
MD59ae065b62b6ac69fdb3f01c0d945d370
SHA1ae8eab24167459f620a1b0bb533982012fd8917e
SHA256345680786c000aaaac08b03ca531208f2778804676cc5f49ab4e42b23e74ea8e
SHA51237d63c812220e85cfdec20fe985279c4dab6d14e469a6cf8ff8cb6ac7bf2541f020a8e6fa411fe755a27488c18ab2cfc62dd865270ba8b8e8b9603815c6cb0e3
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Filesize
123KB
MD59ae065b62b6ac69fdb3f01c0d945d370
SHA1ae8eab24167459f620a1b0bb533982012fd8917e
SHA256345680786c000aaaac08b03ca531208f2778804676cc5f49ab4e42b23e74ea8e
SHA51237d63c812220e85cfdec20fe985279c4dab6d14e469a6cf8ff8cb6ac7bf2541f020a8e6fa411fe755a27488c18ab2cfc62dd865270ba8b8e8b9603815c6cb0e3
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Filesize
123KB
MD59ae065b62b6ac69fdb3f01c0d945d370
SHA1ae8eab24167459f620a1b0bb533982012fd8917e
SHA256345680786c000aaaac08b03ca531208f2778804676cc5f49ab4e42b23e74ea8e
SHA51237d63c812220e85cfdec20fe985279c4dab6d14e469a6cf8ff8cb6ac7bf2541f020a8e6fa411fe755a27488c18ab2cfc62dd865270ba8b8e8b9603815c6cb0e3