Analysis
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max time kernel
150s -
max time network
139s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
18-10-2022 12:00
Static task
static1
Behavioral task
behavioral1
Sample
a2ea3bdb0d0812fef1524445836731d8217a762e42f8eb39036b117611c5d755.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
a2ea3bdb0d0812fef1524445836731d8217a762e42f8eb39036b117611c5d755.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
a2ea3bdb0d0812fef1524445836731d8217a762e42f8eb39036b117611c5d755.exe
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Size
100KB
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MD5
f6149523d928613eae77d8e388a32f09
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SHA1
e7f2bd05935fd0f1fbe0ea1e87671b0b84bd5166
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SHA256
a2ea3bdb0d0812fef1524445836731d8217a762e42f8eb39036b117611c5d755
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SHA512
5e1ff526ea730da1f08c04bfcd165c6693fe23ace8a8f7e03f7b7bdbd9c22ff449d205a23a867898e0c0199dac4087cb55a441e4118e6276d8261c9ef04b9977
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SSDEEP
1536:n3WacX220mQOWxJKIRGWcOUP7vXArnY1ZqAefzyes5NIjnZTA:3CQOFNAfzyeuCnpA
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-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" a2ea3bdb0d0812fef1524445836731d8217a762e42f8eb39036b117611c5d755.exe Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" yieew.exe -
Executes dropped EXE 1 IoCs
pid Process 1460 yieew.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-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation a2ea3bdb0d0812fef1524445836731d8217a762e42f8eb39036b117611c5d755.exe -
Adds Run key to start application 2 TTPs 55 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /X" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /V" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /b" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /A" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /z" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /I" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /Y" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /F" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /K" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /S" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /M" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /q" yieew.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ a2ea3bdb0d0812fef1524445836731d8217a762e42f8eb39036b117611c5d755.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /R" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /C" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /W" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /W" a2ea3bdb0d0812fef1524445836731d8217a762e42f8eb39036b117611c5d755.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /g" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /H" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /v" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /D" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /Z" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /c" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /d" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /l" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /O" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /e" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /p" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /N" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /i" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /T" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /J" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /a" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /w" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /E" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /B" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /o" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /j" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /Q" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /P" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /t" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /L" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /k" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /f" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /G" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /n" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /s" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /y" yieew.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /r" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /u" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /m" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /h" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /x" yieew.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yieew = "C:\\Users\\Admin\\yieew.exe /U" yieew.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 1616 a2ea3bdb0d0812fef1524445836731d8217a762e42f8eb39036b117611c5d755.exe 1616 a2ea3bdb0d0812fef1524445836731d8217a762e42f8eb39036b117611c5d755.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe 1460 yieew.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1616 a2ea3bdb0d0812fef1524445836731d8217a762e42f8eb39036b117611c5d755.exe 1460 yieew.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1616 wrote to memory of 1460 1616 a2ea3bdb0d0812fef1524445836731d8217a762e42f8eb39036b117611c5d755.exe 85 PID 1616 wrote to memory of 1460 1616 a2ea3bdb0d0812fef1524445836731d8217a762e42f8eb39036b117611c5d755.exe 85 PID 1616 wrote to memory of 1460 1616 a2ea3bdb0d0812fef1524445836731d8217a762e42f8eb39036b117611c5d755.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\a2ea3bdb0d0812fef1524445836731d8217a762e42f8eb39036b117611c5d755.exe"C:\Users\Admin\AppData\Local\Temp\a2ea3bdb0d0812fef1524445836731d8217a762e42f8eb39036b117611c5d755.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:1616 -
C:\Users\Admin\yieew.exe"C:\Users\Admin\yieew.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:1460
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
100KB
MD5e5070e34407315a30428bc903ec4566c
SHA1c55c324a9f2f01640ceb0c19718e99ed90b3ab87
SHA2563b0efdbe7346f7e64fb2092e40de7437db98382fb612f44a1f0f12f23edae369
SHA51293d9c4102f1afa9960ec6b001bc656d1474aaa5c9c45bd04af6ae0b36360e13395443ec9a14cfb15cd697b308fec75c940fe6445050d7dc73969792604acfea4
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Filesize
100KB
MD5e5070e34407315a30428bc903ec4566c
SHA1c55c324a9f2f01640ceb0c19718e99ed90b3ab87
SHA2563b0efdbe7346f7e64fb2092e40de7437db98382fb612f44a1f0f12f23edae369
SHA51293d9c4102f1afa9960ec6b001bc656d1474aaa5c9c45bd04af6ae0b36360e13395443ec9a14cfb15cd697b308fec75c940fe6445050d7dc73969792604acfea4