Analysis
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max time kernel
190s -
max time network
194s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
03-12-2022 16:26
Static task
static1
Behavioral task
behavioral1
Sample
a5cf15847b9612fac553d2ae0e92dfd82be547582301169a6d520851ece6db53.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
a5cf15847b9612fac553d2ae0e92dfd82be547582301169a6d520851ece6db53.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
a5cf15847b9612fac553d2ae0e92dfd82be547582301169a6d520851ece6db53.exe
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Size
132KB
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MD5
a2392a6200529fc9bd1ffc2aabecd396
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SHA1
26464e8b0e85499ef74fedc9c8aaf88b0566e359
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SHA256
a5cf15847b9612fac553d2ae0e92dfd82be547582301169a6d520851ece6db53
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SHA512
cc9b5043bb2b38d62bc467b3b1895cc2ffdd465f6655c7e390e12b15954878449231d0e11f21d9683a8a255a989b6a377a8c4151a68f2141a62ecf0fb5b55862
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SSDEEP
1536:FGxPZeTIA1XFixXVG4e2JLBJ3Ue05znybzPe9jRwo7JaS1:yZeTI+FixFG4e1ybGtwQL
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" a5cf15847b9612fac553d2ae0e92dfd82be547582301169a6d520851ece6db53.exe Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" weiri.exe -
Executes dropped EXE 1 IoCs
pid Process 1144 weiri.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 a5cf15847b9612fac553d2ae0e92dfd82be547582301169a6d520851ece6db53.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\weiri = "C:\\Users\\Admin\\weiri.exe /A" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /H" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /k" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /W" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /a" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /q" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /p" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /g" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /u" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /Z" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /o" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /Y" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /m" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /v" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /G" weiri.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /S" a5cf15847b9612fac553d2ae0e92dfd82be547582301169a6d520851ece6db53.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /s" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /c" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /L" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /d" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /j" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /O" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /Q" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /z" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /F" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /C" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /K" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /h" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /e" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /I" weiri.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ a5cf15847b9612fac553d2ae0e92dfd82be547582301169a6d520851ece6db53.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /t" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /E" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /S" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /x" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /n" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /V" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /X" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /l" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /R" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /P" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /T" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /D" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /w" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /b" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /i" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /r" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /y" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /U" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /J" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /N" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /f" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /B" weiri.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weiri = "C:\\Users\\Admin\\weiri.exe /M" weiri.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 4968 a5cf15847b9612fac553d2ae0e92dfd82be547582301169a6d520851ece6db53.exe 4968 a5cf15847b9612fac553d2ae0e92dfd82be547582301169a6d520851ece6db53.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe 1144 weiri.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4968 a5cf15847b9612fac553d2ae0e92dfd82be547582301169a6d520851ece6db53.exe 1144 weiri.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4968 wrote to memory of 1144 4968 a5cf15847b9612fac553d2ae0e92dfd82be547582301169a6d520851ece6db53.exe 80 PID 4968 wrote to memory of 1144 4968 a5cf15847b9612fac553d2ae0e92dfd82be547582301169a6d520851ece6db53.exe 80 PID 4968 wrote to memory of 1144 4968 a5cf15847b9612fac553d2ae0e92dfd82be547582301169a6d520851ece6db53.exe 80
Processes
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C:\Users\Admin\AppData\Local\Temp\a5cf15847b9612fac553d2ae0e92dfd82be547582301169a6d520851ece6db53.exe"C:\Users\Admin\AppData\Local\Temp\a5cf15847b9612fac553d2ae0e92dfd82be547582301169a6d520851ece6db53.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:4968 -
C:\Users\Admin\weiri.exe"C:\Users\Admin\weiri.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:1144
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
132KB
MD554800167465c91904cfd7c73886b7d84
SHA1c0f40ad420d87b8991777ff21aa9705206cfe4d6
SHA256da91fa8737ecf6886d2d86c13aa9a6440711e64ca7587dad8c9a20b2ef12343f
SHA5127eb267a991b546298fa7ead618e0ae5b6fefe2f95e00509306085d16876fbc6b293b0d5cefbdba8c1d7d750c79d258d1b35e43449fd9be1c2c3105767c694acc
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Filesize
132KB
MD554800167465c91904cfd7c73886b7d84
SHA1c0f40ad420d87b8991777ff21aa9705206cfe4d6
SHA256da91fa8737ecf6886d2d86c13aa9a6440711e64ca7587dad8c9a20b2ef12343f
SHA5127eb267a991b546298fa7ead618e0ae5b6fefe2f95e00509306085d16876fbc6b293b0d5cefbdba8c1d7d750c79d258d1b35e43449fd9be1c2c3105767c694acc