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Analysis
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max time kernel
151s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
29/10/2022, 16:01
Static task
static1
Behavioral task
behavioral1
Sample
4f3b8f23fbb5fe5c3c07cad096e3769da03d4d60899ee1c2a9cb3d6cff83a488.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
4f3b8f23fbb5fe5c3c07cad096e3769da03d4d60899ee1c2a9cb3d6cff83a488.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
4f3b8f23fbb5fe5c3c07cad096e3769da03d4d60899ee1c2a9cb3d6cff83a488.exe
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Size
200KB
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MD5
44fd9959c9fe943c78ca068f8a9ef02a
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SHA1
6a211091a046f0720cff7ed15f78386c272ebccd
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SHA256
4f3b8f23fbb5fe5c3c07cad096e3769da03d4d60899ee1c2a9cb3d6cff83a488
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SHA512
e93d30d735f64e2feac128303950105a9a750c7b1cd3ff45510bb03d07c347a51ddbe33e74bb7fb117771a3541a1e0c0d52dd5c660504a5133d940cf47a10e61
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SSDEEP
3072:7U0VB80tQ9nLHbB9WHCS0AgTlhsp3mWEPl:R84QxL7B9WHK9Jhsp3a9
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-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 4f3b8f23fbb5fe5c3c07cad096e3769da03d4d60899ee1c2a9cb3d6cff83a488.exe Set value (int) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" yeaqa.exe -
Executes dropped EXE 1 IoCs
pid Process 4852 yeaqa.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation 4f3b8f23fbb5fe5c3c07cad096e3769da03d4d60899ee1c2a9cb3d6cff83a488.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeaqa = "C:\\Users\\Admin\\yeaqa.exe /p" yeaqa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeaqa = "C:\\Users\\Admin\\yeaqa.exe /v" yeaqa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeaqa = "C:\\Users\\Admin\\yeaqa.exe /j" yeaqa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeaqa = "C:\\Users\\Admin\\yeaqa.exe /d" yeaqa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeaqa = "C:\\Users\\Admin\\yeaqa.exe /q" 4f3b8f23fbb5fe5c3c07cad096e3769da03d4d60899ee1c2a9cb3d6cff83a488.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeaqa = "C:\\Users\\Admin\\yeaqa.exe /f" yeaqa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeaqa = "C:\\Users\\Admin\\yeaqa.exe /s" yeaqa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeaqa = "C:\\Users\\Admin\\yeaqa.exe /r" yeaqa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeaqa = "C:\\Users\\Admin\\yeaqa.exe /c" yeaqa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeaqa = "C:\\Users\\Admin\\yeaqa.exe /y" yeaqa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeaqa = "C:\\Users\\Admin\\yeaqa.exe /i" yeaqa.exe Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 4f3b8f23fbb5fe5c3c07cad096e3769da03d4d60899ee1c2a9cb3d6cff83a488.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeaqa = "C:\\Users\\Admin\\yeaqa.exe /h" yeaqa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeaqa = "C:\\Users\\Admin\\yeaqa.exe /w" yeaqa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeaqa = "C:\\Users\\Admin\\yeaqa.exe /k" yeaqa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeaqa = "C:\\Users\\Admin\\yeaqa.exe /z" yeaqa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeaqa = "C:\\Users\\Admin\\yeaqa.exe /q" yeaqa.exe Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Run\ yeaqa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeaqa = "C:\\Users\\Admin\\yeaqa.exe /m" yeaqa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeaqa = "C:\\Users\\Admin\\yeaqa.exe /o" yeaqa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeaqa = "C:\\Users\\Admin\\yeaqa.exe /b" yeaqa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeaqa = "C:\\Users\\Admin\\yeaqa.exe /l" yeaqa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeaqa = "C:\\Users\\Admin\\yeaqa.exe /u" yeaqa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeaqa = "C:\\Users\\Admin\\yeaqa.exe /x" yeaqa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeaqa = "C:\\Users\\Admin\\yeaqa.exe /e" yeaqa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeaqa = "C:\\Users\\Admin\\yeaqa.exe /t" yeaqa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeaqa = "C:\\Users\\Admin\\yeaqa.exe /g" yeaqa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeaqa = "C:\\Users\\Admin\\yeaqa.exe /n" yeaqa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yeaqa = "C:\\Users\\Admin\\yeaqa.exe /a" yeaqa.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 5068 4f3b8f23fbb5fe5c3c07cad096e3769da03d4d60899ee1c2a9cb3d6cff83a488.exe 5068 4f3b8f23fbb5fe5c3c07cad096e3769da03d4d60899ee1c2a9cb3d6cff83a488.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe 4852 yeaqa.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 5068 4f3b8f23fbb5fe5c3c07cad096e3769da03d4d60899ee1c2a9cb3d6cff83a488.exe 4852 yeaqa.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 5068 wrote to memory of 4852 5068 4f3b8f23fbb5fe5c3c07cad096e3769da03d4d60899ee1c2a9cb3d6cff83a488.exe 81 PID 5068 wrote to memory of 4852 5068 4f3b8f23fbb5fe5c3c07cad096e3769da03d4d60899ee1c2a9cb3d6cff83a488.exe 81 PID 5068 wrote to memory of 4852 5068 4f3b8f23fbb5fe5c3c07cad096e3769da03d4d60899ee1c2a9cb3d6cff83a488.exe 81
Processes
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C:\Users\Admin\AppData\Local\Temp\4f3b8f23fbb5fe5c3c07cad096e3769da03d4d60899ee1c2a9cb3d6cff83a488.exe"C:\Users\Admin\AppData\Local\Temp\4f3b8f23fbb5fe5c3c07cad096e3769da03d4d60899ee1c2a9cb3d6cff83a488.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5068 -
C:\Users\Admin\yeaqa.exe"C:\Users\Admin\yeaqa.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:4852
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
200KB
MD549016f80c2cf2bded009ddc521b29fa3
SHA1d959e1ea1f9bb1cd7056dfbf52ac8fea336280aa
SHA256733712bce85746d5d90e5a5801db57319335c470efa0280e1a33d2ff3b207ff8
SHA512ae41b7b4f38d04ee911c1bd694112346d993232c239652c1bcdc7592125c90df5bb5ea1f254145847bd0323f94109642a154191954680c152a35386abd9e38bb
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Filesize
200KB
MD549016f80c2cf2bded009ddc521b29fa3
SHA1d959e1ea1f9bb1cd7056dfbf52ac8fea336280aa
SHA256733712bce85746d5d90e5a5801db57319335c470efa0280e1a33d2ff3b207ff8
SHA512ae41b7b4f38d04ee911c1bd694112346d993232c239652c1bcdc7592125c90df5bb5ea1f254145847bd0323f94109642a154191954680c152a35386abd9e38bb