Analysis
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max time kernel
164s -
max time network
188s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
02/12/2022, 00:08
Static task
static1
Behavioral task
behavioral1
Sample
5abe0803557a3398a795b2f9094a5b003551f1641127d6b8174837dc8791e3c9.exe
Resource
win7-20221111-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
5abe0803557a3398a795b2f9094a5b003551f1641127d6b8174837dc8791e3c9.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
5abe0803557a3398a795b2f9094a5b003551f1641127d6b8174837dc8791e3c9.exe
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Size
224KB
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MD5
17bb0ba7a218b206528a009edf56ee10
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SHA1
db2bbe18fc178ad19920b36ef72ad25ddc2c9462
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SHA256
5abe0803557a3398a795b2f9094a5b003551f1641127d6b8174837dc8791e3c9
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SHA512
245bc63167eaf83adb0346d4c3d659f92782de90f8d683d96d9b1cf7224e3df0b5d45070acfbeb078161d80a678251681b29ebe793b5db7d4844a7b64ad84259
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SSDEEP
3072:SXyqNsMoBux3ZVpl2mclbj4Uvx+8ysNOu+2eRcKksU61JkkX39RLrw4ySKUbax26:tqN5xvp4LnbmlrZW
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" 5abe0803557a3398a795b2f9094a5b003551f1641127d6b8174837dc8791e3c9.exe Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" muuer.exe -
Executes dropped EXE 1 IoCs
pid Process 1848 muuer.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 5abe0803557a3398a795b2f9094a5b003551f1641127d6b8174837dc8791e3c9.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\muuer = "C:\\Users\\Admin\\muuer.exe /c" muuer.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muuer = "C:\\Users\\Admin\\muuer.exe /q" muuer.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muuer = "C:\\Users\\Admin\\muuer.exe /m" muuer.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muuer = "C:\\Users\\Admin\\muuer.exe /r" muuer.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muuer = "C:\\Users\\Admin\\muuer.exe /a" muuer.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muuer = "C:\\Users\\Admin\\muuer.exe /h" muuer.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muuer = "C:\\Users\\Admin\\muuer.exe /v" muuer.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muuer = "C:\\Users\\Admin\\muuer.exe /j" muuer.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muuer = "C:\\Users\\Admin\\muuer.exe /x" muuer.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muuer = "C:\\Users\\Admin\\muuer.exe /u" muuer.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 5abe0803557a3398a795b2f9094a5b003551f1641127d6b8174837dc8791e3c9.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muuer = "C:\\Users\\Admin\\muuer.exe /s" muuer.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muuer = "C:\\Users\\Admin\\muuer.exe /g" muuer.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muuer = "C:\\Users\\Admin\\muuer.exe /t" muuer.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muuer = "C:\\Users\\Admin\\muuer.exe /w" muuer.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muuer = "C:\\Users\\Admin\\muuer.exe /i" muuer.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muuer = "C:\\Users\\Admin\\muuer.exe /l" muuer.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muuer = "C:\\Users\\Admin\\muuer.exe /d" muuer.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muuer = "C:\\Users\\Admin\\muuer.exe /e" muuer.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muuer = "C:\\Users\\Admin\\muuer.exe /p" muuer.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muuer = "C:\\Users\\Admin\\muuer.exe /z" muuer.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muuer = "C:\\Users\\Admin\\muuer.exe /n" muuer.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muuer = "C:\\Users\\Admin\\muuer.exe /k" muuer.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muuer = "C:\\Users\\Admin\\muuer.exe /o" muuer.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muuer = "C:\\Users\\Admin\\muuer.exe /d" 5abe0803557a3398a795b2f9094a5b003551f1641127d6b8174837dc8791e3c9.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ muuer.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muuer = "C:\\Users\\Admin\\muuer.exe /y" muuer.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muuer = "C:\\Users\\Admin\\muuer.exe /f" muuer.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\muuer = "C:\\Users\\Admin\\muuer.exe /b" muuer.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 4740 5abe0803557a3398a795b2f9094a5b003551f1641127d6b8174837dc8791e3c9.exe 4740 5abe0803557a3398a795b2f9094a5b003551f1641127d6b8174837dc8791e3c9.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe 1848 muuer.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4740 5abe0803557a3398a795b2f9094a5b003551f1641127d6b8174837dc8791e3c9.exe 1848 muuer.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4740 wrote to memory of 1848 4740 5abe0803557a3398a795b2f9094a5b003551f1641127d6b8174837dc8791e3c9.exe 80 PID 4740 wrote to memory of 1848 4740 5abe0803557a3398a795b2f9094a5b003551f1641127d6b8174837dc8791e3c9.exe 80 PID 4740 wrote to memory of 1848 4740 5abe0803557a3398a795b2f9094a5b003551f1641127d6b8174837dc8791e3c9.exe 80
Processes
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C:\Users\Admin\AppData\Local\Temp\5abe0803557a3398a795b2f9094a5b003551f1641127d6b8174837dc8791e3c9.exe"C:\Users\Admin\AppData\Local\Temp\5abe0803557a3398a795b2f9094a5b003551f1641127d6b8174837dc8791e3c9.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:4740 -
C:\Users\Admin\muuer.exe"C:\Users\Admin\muuer.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:1848
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
224KB
MD5c5198f69e11560d8ab25fd23caac64a7
SHA1cf9c8a61313e9c2476f7c170a3a85a2c7e199b62
SHA256d7b3728363d38f7c2497701348c8f4c3bef3facfd1d187eed101d7a2553f978a
SHA512a36d58520da6f573a7950cc120ebc39cb1182a6cfe6651f5f2df0ec08f5c92e8f79a82ea04fd43612fe3e41aec9fcfd285caa0bf1b8247ce86cc3e1315b560d8
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Filesize
224KB
MD5c5198f69e11560d8ab25fd23caac64a7
SHA1cf9c8a61313e9c2476f7c170a3a85a2c7e199b62
SHA256d7b3728363d38f7c2497701348c8f4c3bef3facfd1d187eed101d7a2553f978a
SHA512a36d58520da6f573a7950cc120ebc39cb1182a6cfe6651f5f2df0ec08f5c92e8f79a82ea04fd43612fe3e41aec9fcfd285caa0bf1b8247ce86cc3e1315b560d8