Analysis
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max time kernel
152s -
max time network
160s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
19-09-2022 03:03
Static task
static1
Behavioral task
behavioral1
Sample
34ecfe3bdb48616a5c080268338d1c2aed9b14a1e103b16a554cf6a2315357c9.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
34ecfe3bdb48616a5c080268338d1c2aed9b14a1e103b16a554cf6a2315357c9.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
34ecfe3bdb48616a5c080268338d1c2aed9b14a1e103b16a554cf6a2315357c9.exe
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Size
80KB
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MD5
7c7a09b05dffe25a17c33866658daa06
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SHA1
7c25fc29ddbf5e18cfb6e5ca954c89ff17d9ff37
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SHA256
34ecfe3bdb48616a5c080268338d1c2aed9b14a1e103b16a554cf6a2315357c9
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SHA512
4b3cdbe7d4293f6f0475147efa55778dc02de27bdb285dd6d865965ff7587af6ca78947c56ca07ddf0143fb97d7597372b9db9e6ba4894572fed0f488ecdcbb0
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SSDEEP
1536:vn7wLlwvKGlTGQxguIxZTAwlpwFJ0T72mocT:foivrKxZfUFJ0T72mBT
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" 34ecfe3bdb48616a5c080268338d1c2aed9b14a1e103b16a554cf6a2315357c9.exe Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" yoahe.exe -
Executes dropped EXE 1 IoCs
pid Process 4424 yoahe.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 34ecfe3bdb48616a5c080268338d1c2aed9b14a1e103b16a554cf6a2315357c9.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\yoahe = "C:\\Users\\Admin\\yoahe.exe /d" 34ecfe3bdb48616a5c080268338d1c2aed9b14a1e103b16a554cf6a2315357c9.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoahe = "C:\\Users\\Admin\\yoahe.exe /w" yoahe.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoahe = "C:\\Users\\Admin\\yoahe.exe /y" yoahe.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 34ecfe3bdb48616a5c080268338d1c2aed9b14a1e103b16a554cf6a2315357c9.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoahe = "C:\\Users\\Admin\\yoahe.exe /r" yoahe.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoahe = "C:\\Users\\Admin\\yoahe.exe /p" yoahe.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoahe = "C:\\Users\\Admin\\yoahe.exe /e" yoahe.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoahe = "C:\\Users\\Admin\\yoahe.exe /t" yoahe.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoahe = "C:\\Users\\Admin\\yoahe.exe /u" yoahe.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoahe = "C:\\Users\\Admin\\yoahe.exe /z" yoahe.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoahe = "C:\\Users\\Admin\\yoahe.exe /m" yoahe.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoahe = "C:\\Users\\Admin\\yoahe.exe /h" yoahe.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoahe = "C:\\Users\\Admin\\yoahe.exe /n" yoahe.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoahe = "C:\\Users\\Admin\\yoahe.exe /q" yoahe.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoahe = "C:\\Users\\Admin\\yoahe.exe /g" yoahe.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoahe = "C:\\Users\\Admin\\yoahe.exe /k" yoahe.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoahe = "C:\\Users\\Admin\\yoahe.exe /v" yoahe.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoahe = "C:\\Users\\Admin\\yoahe.exe /b" yoahe.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoahe = "C:\\Users\\Admin\\yoahe.exe /l" yoahe.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoahe = "C:\\Users\\Admin\\yoahe.exe /o" yoahe.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoahe = "C:\\Users\\Admin\\yoahe.exe /x" yoahe.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoahe = "C:\\Users\\Admin\\yoahe.exe /c" yoahe.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoahe = "C:\\Users\\Admin\\yoahe.exe /d" yoahe.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ yoahe.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoahe = "C:\\Users\\Admin\\yoahe.exe /j" yoahe.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoahe = "C:\\Users\\Admin\\yoahe.exe /s" yoahe.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoahe = "C:\\Users\\Admin\\yoahe.exe /a" yoahe.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoahe = "C:\\Users\\Admin\\yoahe.exe /f" yoahe.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yoahe = "C:\\Users\\Admin\\yoahe.exe /i" yoahe.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 4840 34ecfe3bdb48616a5c080268338d1c2aed9b14a1e103b16a554cf6a2315357c9.exe 4840 34ecfe3bdb48616a5c080268338d1c2aed9b14a1e103b16a554cf6a2315357c9.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe 4424 yoahe.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4840 34ecfe3bdb48616a5c080268338d1c2aed9b14a1e103b16a554cf6a2315357c9.exe 4424 yoahe.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4840 wrote to memory of 4424 4840 34ecfe3bdb48616a5c080268338d1c2aed9b14a1e103b16a554cf6a2315357c9.exe 80 PID 4840 wrote to memory of 4424 4840 34ecfe3bdb48616a5c080268338d1c2aed9b14a1e103b16a554cf6a2315357c9.exe 80 PID 4840 wrote to memory of 4424 4840 34ecfe3bdb48616a5c080268338d1c2aed9b14a1e103b16a554cf6a2315357c9.exe 80
Processes
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C:\Users\Admin\AppData\Local\Temp\34ecfe3bdb48616a5c080268338d1c2aed9b14a1e103b16a554cf6a2315357c9.exe"C:\Users\Admin\AppData\Local\Temp\34ecfe3bdb48616a5c080268338d1c2aed9b14a1e103b16a554cf6a2315357c9.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:4840 -
C:\Users\Admin\yoahe.exe"C:\Users\Admin\yoahe.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:4424
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
80KB
MD5a1d16f0ea5685907056778bfb4d8b6a8
SHA1fadd476b1e70a94209dd3d16446faa8f93c60cc9
SHA256fa1320f17bf9b526ffa83918da616077273670c5c623a5ae054ce6b5cb94813a
SHA512db765fb4369d307750d5605277609dfb652099cf65ea8ac16be78e1da669595ed97a340efa944dbba1266947b1800c0d185e4304ccf54d06ceed9e2fdd518daf
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Filesize
80KB
MD5a1d16f0ea5685907056778bfb4d8b6a8
SHA1fadd476b1e70a94209dd3d16446faa8f93c60cc9
SHA256fa1320f17bf9b526ffa83918da616077273670c5c623a5ae054ce6b5cb94813a
SHA512db765fb4369d307750d5605277609dfb652099cf65ea8ac16be78e1da669595ed97a340efa944dbba1266947b1800c0d185e4304ccf54d06ceed9e2fdd518daf