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Analysis
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max time kernel
114s -
max time network
189s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
11/10/2022, 20:06
Static task
static1
Behavioral task
behavioral1
Sample
e38c1231ef310d2099a9774019171e984fed567d4b37aedc2688451717185d5e.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
e38c1231ef310d2099a9774019171e984fed567d4b37aedc2688451717185d5e.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
9 signatures
150 seconds
General
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Target
e38c1231ef310d2099a9774019171e984fed567d4b37aedc2688451717185d5e.exe
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Size
304KB
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MD5
6a4c946040114016c1503789e51ec950
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SHA1
8600e14a70535cf2504f134fdf623dea094c3e49
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SHA256
e38c1231ef310d2099a9774019171e984fed567d4b37aedc2688451717185d5e
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SHA512
499aefe714e5f050be88b4a1a57f55f3a558f52173579c1dd952c125a741ad49d7fe4e8cecbb26fed471191b024fd73b1d63c6739082da5dc961df264dc72443
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SSDEEP
3072:JaPvzZRFjFBbVJsnCRcC3xo8ozYH/LSsB4pAnNnfwo7A3usYQCASCPepFq:JaP7ZLfsnHQIz9AnNno9rCAfPepF
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" nzyaig.exe Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" e38c1231ef310d2099a9774019171e984fed567d4b37aedc2688451717185d5e.exe -
Executes dropped EXE 1 IoCs
pid Process 4628 nzyaig.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 e38c1231ef310d2099a9774019171e984fed567d4b37aedc2688451717185d5e.exe -
Adds Run key to start application 2 TTPs 27 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nzyaig = "C:\\Users\\Admin\\nzyaig.exe /q" nzyaig.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nzyaig = "C:\\Users\\Admin\\nzyaig.exe /o" nzyaig.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nzyaig = "C:\\Users\\Admin\\nzyaig.exe /r" nzyaig.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ e38c1231ef310d2099a9774019171e984fed567d4b37aedc2688451717185d5e.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nzyaig = "C:\\Users\\Admin\\nzyaig.exe /a" nzyaig.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nzyaig = "C:\\Users\\Admin\\nzyaig.exe /k" nzyaig.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nzyaig = "C:\\Users\\Admin\\nzyaig.exe /d" nzyaig.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nzyaig = "C:\\Users\\Admin\\nzyaig.exe /z" nzyaig.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nzyaig = "C:\\Users\\Admin\\nzyaig.exe /j" nzyaig.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nzyaig = "C:\\Users\\Admin\\nzyaig.exe /g" nzyaig.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nzyaig = "C:\\Users\\Admin\\nzyaig.exe /t" nzyaig.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nzyaig = "C:\\Users\\Admin\\nzyaig.exe /w" nzyaig.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nzyaig = "C:\\Users\\Admin\\nzyaig.exe /s" nzyaig.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nzyaig = "C:\\Users\\Admin\\nzyaig.exe /y" nzyaig.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nzyaig = "C:\\Users\\Admin\\nzyaig.exe /n" nzyaig.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nzyaig = "C:\\Users\\Admin\\nzyaig.exe /m" nzyaig.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nzyaig = "C:\\Users\\Admin\\nzyaig.exe /f" nzyaig.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nzyaig = "C:\\Users\\Admin\\nzyaig.exe /x" nzyaig.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nzyaig = "C:\\Users\\Admin\\nzyaig.exe /l" nzyaig.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nzyaig = "C:\\Users\\Admin\\nzyaig.exe /v" nzyaig.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nzyaig = "C:\\Users\\Admin\\nzyaig.exe /b" nzyaig.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ nzyaig.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nzyaig = "C:\\Users\\Admin\\nzyaig.exe /p" nzyaig.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nzyaig = "C:\\Users\\Admin\\nzyaig.exe /i" nzyaig.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nzyaig = "C:\\Users\\Admin\\nzyaig.exe /c" nzyaig.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nzyaig = "C:\\Users\\Admin\\nzyaig.exe /i" e38c1231ef310d2099a9774019171e984fed567d4b37aedc2688451717185d5e.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nzyaig = "C:\\Users\\Admin\\nzyaig.exe /h" nzyaig.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-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings e38c1231ef310d2099a9774019171e984fed567d4b37aedc2688451717185d5e.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4904 e38c1231ef310d2099a9774019171e984fed567d4b37aedc2688451717185d5e.exe 4904 e38c1231ef310d2099a9774019171e984fed567d4b37aedc2688451717185d5e.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe 4628 nzyaig.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4904 e38c1231ef310d2099a9774019171e984fed567d4b37aedc2688451717185d5e.exe 4628 nzyaig.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4904 wrote to memory of 4628 4904 e38c1231ef310d2099a9774019171e984fed567d4b37aedc2688451717185d5e.exe 85 PID 4904 wrote to memory of 4628 4904 e38c1231ef310d2099a9774019171e984fed567d4b37aedc2688451717185d5e.exe 85 PID 4904 wrote to memory of 4628 4904 e38c1231ef310d2099a9774019171e984fed567d4b37aedc2688451717185d5e.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\e38c1231ef310d2099a9774019171e984fed567d4b37aedc2688451717185d5e.exe"C:\Users\Admin\AppData\Local\Temp\e38c1231ef310d2099a9774019171e984fed567d4b37aedc2688451717185d5e.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:4904 -
C:\Users\Admin\nzyaig.exe"C:\Users\Admin\nzyaig.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:4628
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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:2936
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
304KB
MD56a4c946040114016c1503789e51ec950
SHA18600e14a70535cf2504f134fdf623dea094c3e49
SHA256e38c1231ef310d2099a9774019171e984fed567d4b37aedc2688451717185d5e
SHA512499aefe714e5f050be88b4a1a57f55f3a558f52173579c1dd952c125a741ad49d7fe4e8cecbb26fed471191b024fd73b1d63c6739082da5dc961df264dc72443
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Filesize
304KB
MD56a4c946040114016c1503789e51ec950
SHA18600e14a70535cf2504f134fdf623dea094c3e49
SHA256e38c1231ef310d2099a9774019171e984fed567d4b37aedc2688451717185d5e
SHA512499aefe714e5f050be88b4a1a57f55f3a558f52173579c1dd952c125a741ad49d7fe4e8cecbb26fed471191b024fd73b1d63c6739082da5dc961df264dc72443