Analysis
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max time kernel
188s -
max time network
201s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
01-12-2022 22:37
Static task
static1
Behavioral task
behavioral1
Sample
cdb85e89a66e80d967ef3b84f51868e3de8b9228f7a3e1d832e37f910295594a.exe
Resource
win7-20221111-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
cdb85e89a66e80d967ef3b84f51868e3de8b9228f7a3e1d832e37f910295594a.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
cdb85e89a66e80d967ef3b84f51868e3de8b9228f7a3e1d832e37f910295594a.exe
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Size
228KB
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MD5
9d4c2f4363b51963ce5b1820e705ccac
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SHA1
c7b13919278c95326507551773be57d79df41865
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SHA256
cdb85e89a66e80d967ef3b84f51868e3de8b9228f7a3e1d832e37f910295594a
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SHA512
c49a0ec22e56674719545d7a5426bfbf0d14adb78702c260d35b389b8467c9a8feaab991675477e13b6a9afb26832fe06149490a31449f6339b9063e01bd47ca
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SSDEEP
3072:ifCeKOFCsv/CL0ns7bFtRdVWCyiHCN1psI6:XeRIsi1HFj/WCyiHCNfsJ
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" cdb85e89a66e80d967ef3b84f51868e3de8b9228f7a3e1d832e37f910295594a.exe Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" weuyui.exe -
Executes dropped EXE 1 IoCs
pid Process 4664 weuyui.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 cdb85e89a66e80d967ef3b84f51868e3de8b9228f7a3e1d832e37f910295594a.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weuyui = "C:\\Users\\Admin\\weuyui.exe /w" weuyui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weuyui = "C:\\Users\\Admin\\weuyui.exe /l" weuyui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weuyui = "C:\\Users\\Admin\\weuyui.exe /d" weuyui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weuyui = "C:\\Users\\Admin\\weuyui.exe /k" weuyui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weuyui = "C:\\Users\\Admin\\weuyui.exe /s" weuyui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weuyui = "C:\\Users\\Admin\\weuyui.exe /q" weuyui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weuyui = "C:\\Users\\Admin\\weuyui.exe /u" weuyui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weuyui = "C:\\Users\\Admin\\weuyui.exe /b" weuyui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weuyui = "C:\\Users\\Admin\\weuyui.exe /a" weuyui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weuyui = "C:\\Users\\Admin\\weuyui.exe /h" weuyui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weuyui = "C:\\Users\\Admin\\weuyui.exe /c" weuyui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weuyui = "C:\\Users\\Admin\\weuyui.exe /p" cdb85e89a66e80d967ef3b84f51868e3de8b9228f7a3e1d832e37f910295594a.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weuyui = "C:\\Users\\Admin\\weuyui.exe /j" weuyui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weuyui = "C:\\Users\\Admin\\weuyui.exe /n" weuyui.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ cdb85e89a66e80d967ef3b84f51868e3de8b9228f7a3e1d832e37f910295594a.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weuyui = "C:\\Users\\Admin\\weuyui.exe /y" weuyui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weuyui = "C:\\Users\\Admin\\weuyui.exe /r" weuyui.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ weuyui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weuyui = "C:\\Users\\Admin\\weuyui.exe /f" weuyui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weuyui = "C:\\Users\\Admin\\weuyui.exe /i" weuyui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weuyui = "C:\\Users\\Admin\\weuyui.exe /g" weuyui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weuyui = "C:\\Users\\Admin\\weuyui.exe /v" weuyui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weuyui = "C:\\Users\\Admin\\weuyui.exe /x" weuyui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weuyui = "C:\\Users\\Admin\\weuyui.exe /o" weuyui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weuyui = "C:\\Users\\Admin\\weuyui.exe /p" weuyui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weuyui = "C:\\Users\\Admin\\weuyui.exe /z" weuyui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weuyui = "C:\\Users\\Admin\\weuyui.exe /t" weuyui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weuyui = "C:\\Users\\Admin\\weuyui.exe /e" weuyui.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\weuyui = "C:\\Users\\Admin\\weuyui.exe /m" weuyui.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 4984 cdb85e89a66e80d967ef3b84f51868e3de8b9228f7a3e1d832e37f910295594a.exe 4984 cdb85e89a66e80d967ef3b84f51868e3de8b9228f7a3e1d832e37f910295594a.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe 4664 weuyui.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4984 cdb85e89a66e80d967ef3b84f51868e3de8b9228f7a3e1d832e37f910295594a.exe 4664 weuyui.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4984 wrote to memory of 4664 4984 cdb85e89a66e80d967ef3b84f51868e3de8b9228f7a3e1d832e37f910295594a.exe 79 PID 4984 wrote to memory of 4664 4984 cdb85e89a66e80d967ef3b84f51868e3de8b9228f7a3e1d832e37f910295594a.exe 79 PID 4984 wrote to memory of 4664 4984 cdb85e89a66e80d967ef3b84f51868e3de8b9228f7a3e1d832e37f910295594a.exe 79
Processes
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C:\Users\Admin\AppData\Local\Temp\cdb85e89a66e80d967ef3b84f51868e3de8b9228f7a3e1d832e37f910295594a.exe"C:\Users\Admin\AppData\Local\Temp\cdb85e89a66e80d967ef3b84f51868e3de8b9228f7a3e1d832e37f910295594a.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:4984 -
C:\Users\Admin\weuyui.exe"C:\Users\Admin\weuyui.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:4664
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
228KB
MD5cc1f53619b5fd144bf5d8cbb989e3618
SHA16c69ed3da8b932032eb9e9c043342a0a758746ae
SHA256683fe29056169c29831963dc505746ec2963c5696e0bfa1f03f38e71bbd3c0a4
SHA512496dd009bc7963fe2a0ef8ec711de0eca8cfa6130bc8e2bc9af24f5313cba9aaf789e663871de5f215fd048babc837fa228d267565e8db4cb8d2f9b3144c2b99
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Filesize
228KB
MD5cc1f53619b5fd144bf5d8cbb989e3618
SHA16c69ed3da8b932032eb9e9c043342a0a758746ae
SHA256683fe29056169c29831963dc505746ec2963c5696e0bfa1f03f38e71bbd3c0a4
SHA512496dd009bc7963fe2a0ef8ec711de0eca8cfa6130bc8e2bc9af24f5313cba9aaf789e663871de5f215fd048babc837fa228d267565e8db4cb8d2f9b3144c2b99