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Analysis
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max time kernel
151s -
max time network
169s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
02/10/2022, 06:29
Static task
static1
Behavioral task
behavioral1
Sample
a809bf58c9e401527887bc482272262ccb5c5842d250de8f35ae895fb174abe3.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
a809bf58c9e401527887bc482272262ccb5c5842d250de8f35ae895fb174abe3.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
a809bf58c9e401527887bc482272262ccb5c5842d250de8f35ae895fb174abe3.exe
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Size
96KB
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MD5
551da9dc0486bae6c219b3e80e3114e0
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SHA1
62e52b66af31d68892cb48682bd8d5effd474d24
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SHA256
a809bf58c9e401527887bc482272262ccb5c5842d250de8f35ae895fb174abe3
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SHA512
e94d33ac79cc39cece86e4e432d05f9a2b75221dd37a9fc21adb5cf90c009b0733453e42f43b4500840926c9a4cadabbcdf1748fbbd3f04ad9e053e1605a0e29
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SSDEEP
768:71PZI+4p5ppjbOWrLR1LQevS0GR/SC5x/ze/lQlUogSYiOCN7IP8AeupGQBTob7V:71l4p5nWWrL7Qe25xjlU47I0my3i6EZ0
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-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" yiedio.exe Set value (int) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" a809bf58c9e401527887bc482272262ccb5c5842d250de8f35ae895fb174abe3.exe -
Executes dropped EXE 1 IoCs
pid Process 2184 yiedio.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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation a809bf58c9e401527887bc482272262ccb5c5842d250de8f35ae895fb174abe3.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiedio = "C:\\Users\\Admin\\yiedio.exe /u" yiedio.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiedio = "C:\\Users\\Admin\\yiedio.exe /q" yiedio.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiedio = "C:\\Users\\Admin\\yiedio.exe /c" yiedio.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run\ a809bf58c9e401527887bc482272262ccb5c5842d250de8f35ae895fb174abe3.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run\ yiedio.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiedio = "C:\\Users\\Admin\\yiedio.exe /h" yiedio.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiedio = "C:\\Users\\Admin\\yiedio.exe /t" yiedio.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiedio = "C:\\Users\\Admin\\yiedio.exe /b" yiedio.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiedio = "C:\\Users\\Admin\\yiedio.exe /d" yiedio.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiedio = "C:\\Users\\Admin\\yiedio.exe /o" yiedio.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiedio = "C:\\Users\\Admin\\yiedio.exe /y" yiedio.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiedio = "C:\\Users\\Admin\\yiedio.exe /f" yiedio.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiedio = "C:\\Users\\Admin\\yiedio.exe /p" yiedio.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiedio = "C:\\Users\\Admin\\yiedio.exe /n" yiedio.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiedio = "C:\\Users\\Admin\\yiedio.exe /e" yiedio.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiedio = "C:\\Users\\Admin\\yiedio.exe /z" yiedio.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiedio = "C:\\Users\\Admin\\yiedio.exe /x" yiedio.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiedio = "C:\\Users\\Admin\\yiedio.exe /i" yiedio.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiedio = "C:\\Users\\Admin\\yiedio.exe /v" yiedio.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiedio = "C:\\Users\\Admin\\yiedio.exe /w" yiedio.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiedio = "C:\\Users\\Admin\\yiedio.exe /s" yiedio.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiedio = "C:\\Users\\Admin\\yiedio.exe /m" yiedio.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiedio = "C:\\Users\\Admin\\yiedio.exe /r" yiedio.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiedio = "C:\\Users\\Admin\\yiedio.exe /k" yiedio.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiedio = "C:\\Users\\Admin\\yiedio.exe /h" a809bf58c9e401527887bc482272262ccb5c5842d250de8f35ae895fb174abe3.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiedio = "C:\\Users\\Admin\\yiedio.exe /j" yiedio.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiedio = "C:\\Users\\Admin\\yiedio.exe /a" yiedio.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiedio = "C:\\Users\\Admin\\yiedio.exe /g" yiedio.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiedio = "C:\\Users\\Admin\\yiedio.exe /l" yiedio.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 844 a809bf58c9e401527887bc482272262ccb5c5842d250de8f35ae895fb174abe3.exe 844 a809bf58c9e401527887bc482272262ccb5c5842d250de8f35ae895fb174abe3.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe 2184 yiedio.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 844 a809bf58c9e401527887bc482272262ccb5c5842d250de8f35ae895fb174abe3.exe 2184 yiedio.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 844 wrote to memory of 2184 844 a809bf58c9e401527887bc482272262ccb5c5842d250de8f35ae895fb174abe3.exe 81 PID 844 wrote to memory of 2184 844 a809bf58c9e401527887bc482272262ccb5c5842d250de8f35ae895fb174abe3.exe 81 PID 844 wrote to memory of 2184 844 a809bf58c9e401527887bc482272262ccb5c5842d250de8f35ae895fb174abe3.exe 81
Processes
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C:\Users\Admin\AppData\Local\Temp\a809bf58c9e401527887bc482272262ccb5c5842d250de8f35ae895fb174abe3.exe"C:\Users\Admin\AppData\Local\Temp\a809bf58c9e401527887bc482272262ccb5c5842d250de8f35ae895fb174abe3.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:844 -
C:\Users\Admin\yiedio.exe"C:\Users\Admin\yiedio.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:2184
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
96KB
MD5e28e1d074219b7ee6a68850591a40372
SHA1e9d0defdd03c2daea58ce698a7be389d607aff8a
SHA2564b9f0f8d3e5f3406558be9d6362b492155fd7e5ab5f20d5997f997adadd38e56
SHA512c406ceec5e7386368a44c7b59f65c8552f417e63c07f69ce2cc735ff65660084f9458d20ebe23618f6938b25aac99771f2d5fd1bd7cde87424c12d0894a7e035
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Filesize
96KB
MD5e28e1d074219b7ee6a68850591a40372
SHA1e9d0defdd03c2daea58ce698a7be389d607aff8a
SHA2564b9f0f8d3e5f3406558be9d6362b492155fd7e5ab5f20d5997f997adadd38e56
SHA512c406ceec5e7386368a44c7b59f65c8552f417e63c07f69ce2cc735ff65660084f9458d20ebe23618f6938b25aac99771f2d5fd1bd7cde87424c12d0894a7e035