Analysis
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max time kernel
113s -
max time network
185s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
20-10-2022 01:30
Static task
static1
Behavioral task
behavioral1
Sample
efa1702ebf9c86c1df2f1fa82d34e3bb6e11c1917c0408585dcaacf334e430cd.exe
Resource
win7-20220901-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
efa1702ebf9c86c1df2f1fa82d34e3bb6e11c1917c0408585dcaacf334e430cd.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
9 signatures
150 seconds
General
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Target
efa1702ebf9c86c1df2f1fa82d34e3bb6e11c1917c0408585dcaacf334e430cd.exe
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Size
304KB
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MD5
5bf424eb69e1250740aa00c78b67f6f0
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SHA1
ebcd94c8ce90b75cb9555a618b0c9b542a6a9be7
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SHA256
efa1702ebf9c86c1df2f1fa82d34e3bb6e11c1917c0408585dcaacf334e430cd
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SHA512
58017d0fd4679a75d6706e6ff438a6677a7e5521a610f60737d070f7775d01155bf9b46e4eda32c923367e4485fda03d6329f9ed56577b2ef86cf21de5c02b8b
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SSDEEP
3072:YaPMzZRFjFBbVJsnCRcC3xo8ozYH/LSsB4pAnNnfwo7A3n+YQCASCPepFq:YaPkZLfsnHQIz9AnNnourCAfPepF
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" huemuu.exe Set value (int) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" efa1702ebf9c86c1df2f1fa82d34e3bb6e11c1917c0408585dcaacf334e430cd.exe -
Executes dropped EXE 1 IoCs
pid Process 3812 huemuu.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 efa1702ebf9c86c1df2f1fa82d34e3bb6e11c1917c0408585dcaacf334e430cd.exe -
Adds Run key to start application 2 TTPs 28 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huemuu = "C:\\Users\\Admin\\huemuu.exe /a" huemuu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huemuu = "C:\\Users\\Admin\\huemuu.exe /y" huemuu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huemuu = "C:\\Users\\Admin\\huemuu.exe /p" huemuu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huemuu = "C:\\Users\\Admin\\huemuu.exe /e" huemuu.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run\ efa1702ebf9c86c1df2f1fa82d34e3bb6e11c1917c0408585dcaacf334e430cd.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huemuu = "C:\\Users\\Admin\\huemuu.exe /h" huemuu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huemuu = "C:\\Users\\Admin\\huemuu.exe /s" huemuu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huemuu = "C:\\Users\\Admin\\huemuu.exe /o" huemuu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huemuu = "C:\\Users\\Admin\\huemuu.exe /q" huemuu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huemuu = "C:\\Users\\Admin\\huemuu.exe /d" huemuu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huemuu = "C:\\Users\\Admin\\huemuu.exe /a" efa1702ebf9c86c1df2f1fa82d34e3bb6e11c1917c0408585dcaacf334e430cd.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huemuu = "C:\\Users\\Admin\\huemuu.exe /f" huemuu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huemuu = "C:\\Users\\Admin\\huemuu.exe /k" huemuu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huemuu = "C:\\Users\\Admin\\huemuu.exe /r" huemuu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huemuu = "C:\\Users\\Admin\\huemuu.exe /c" huemuu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huemuu = "C:\\Users\\Admin\\huemuu.exe /g" huemuu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huemuu = "C:\\Users\\Admin\\huemuu.exe /x" huemuu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huemuu = "C:\\Users\\Admin\\huemuu.exe /z" huemuu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huemuu = "C:\\Users\\Admin\\huemuu.exe /u" huemuu.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run\ huemuu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huemuu = "C:\\Users\\Admin\\huemuu.exe /l" huemuu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huemuu = "C:\\Users\\Admin\\huemuu.exe /v" huemuu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huemuu = "C:\\Users\\Admin\\huemuu.exe /w" huemuu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huemuu = "C:\\Users\\Admin\\huemuu.exe /m" huemuu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huemuu = "C:\\Users\\Admin\\huemuu.exe /n" huemuu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huemuu = "C:\\Users\\Admin\\huemuu.exe /i" huemuu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huemuu = "C:\\Users\\Admin\\huemuu.exe /j" huemuu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\huemuu = "C:\\Users\\Admin\\huemuu.exe /b" huemuu.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings efa1702ebf9c86c1df2f1fa82d34e3bb6e11c1917c0408585dcaacf334e430cd.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3952 efa1702ebf9c86c1df2f1fa82d34e3bb6e11c1917c0408585dcaacf334e430cd.exe 3952 efa1702ebf9c86c1df2f1fa82d34e3bb6e11c1917c0408585dcaacf334e430cd.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe 3812 huemuu.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 3952 efa1702ebf9c86c1df2f1fa82d34e3bb6e11c1917c0408585dcaacf334e430cd.exe 3812 huemuu.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3952 wrote to memory of 3812 3952 efa1702ebf9c86c1df2f1fa82d34e3bb6e11c1917c0408585dcaacf334e430cd.exe 83 PID 3952 wrote to memory of 3812 3952 efa1702ebf9c86c1df2f1fa82d34e3bb6e11c1917c0408585dcaacf334e430cd.exe 83 PID 3952 wrote to memory of 3812 3952 efa1702ebf9c86c1df2f1fa82d34e3bb6e11c1917c0408585dcaacf334e430cd.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\efa1702ebf9c86c1df2f1fa82d34e3bb6e11c1917c0408585dcaacf334e430cd.exe"C:\Users\Admin\AppData\Local\Temp\efa1702ebf9c86c1df2f1fa82d34e3bb6e11c1917c0408585dcaacf334e430cd.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3952 -
C:\Users\Admin\huemuu.exe"C:\Users\Admin\huemuu.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:3812
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C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵PID:2324
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
304KB
MD55bf424eb69e1250740aa00c78b67f6f0
SHA1ebcd94c8ce90b75cb9555a618b0c9b542a6a9be7
SHA256efa1702ebf9c86c1df2f1fa82d34e3bb6e11c1917c0408585dcaacf334e430cd
SHA51258017d0fd4679a75d6706e6ff438a6677a7e5521a610f60737d070f7775d01155bf9b46e4eda32c923367e4485fda03d6329f9ed56577b2ef86cf21de5c02b8b
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Filesize
304KB
MD55bf424eb69e1250740aa00c78b67f6f0
SHA1ebcd94c8ce90b75cb9555a618b0c9b542a6a9be7
SHA256efa1702ebf9c86c1df2f1fa82d34e3bb6e11c1917c0408585dcaacf334e430cd
SHA51258017d0fd4679a75d6706e6ff438a6677a7e5521a610f60737d070f7775d01155bf9b46e4eda32c923367e4485fda03d6329f9ed56577b2ef86cf21de5c02b8b