Analysis
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max time kernel
148s -
max time network
132s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
02/10/2022, 00:46
Static task
static1
Behavioral task
behavioral1
Sample
b94b9ba8756eab9b431156e18dc1aa711669e2eab31c298b07194d54e8f00a28.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
b94b9ba8756eab9b431156e18dc1aa711669e2eab31c298b07194d54e8f00a28.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
b94b9ba8756eab9b431156e18dc1aa711669e2eab31c298b07194d54e8f00a28.exe
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Size
80KB
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MD5
6fe80bba56b328c468108bf408511c8e
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SHA1
b91534921e065be77ca0b71801590cb3ebc92b5f
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SHA256
b94b9ba8756eab9b431156e18dc1aa711669e2eab31c298b07194d54e8f00a28
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SHA512
df69647d4ea7d96ff304c3c96bfc86c976ab5e2b14508423d9b979554762fbf02da30531dc470d0fa45cecbcc29ce785cad7f5ab1f5c7c6263225204acf3664d
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SSDEEP
1536:klmto4WDyF8e/O+TtSv6DhjFEA5n6qtvmzrRptAi858J8MGu143i6E5T:E4qNT
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-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" b94b9ba8756eab9b431156e18dc1aa711669e2eab31c298b07194d54e8f00a28.exe Set value (int) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" jouihog.exe -
Executes dropped EXE 1 IoCs
pid Process 4824 jouihog.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-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation b94b9ba8756eab9b431156e18dc1aa711669e2eab31c298b07194d54e8f00a28.exe -
Adds Run key to start application 2 TTPs 22 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jouihog = "C:\\Users\\Admin\\jouihog.exe /s" jouihog.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jouihog = "C:\\Users\\Admin\\jouihog.exe /h" jouihog.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jouihog = "C:\\Users\\Admin\\jouihog.exe /f" jouihog.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jouihog = "C:\\Users\\Admin\\jouihog.exe /j" jouihog.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jouihog = "C:\\Users\\Admin\\jouihog.exe /y" jouihog.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jouihog = "C:\\Users\\Admin\\jouihog.exe /a" jouihog.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jouihog = "C:\\Users\\Admin\\jouihog.exe /r" jouihog.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jouihog = "C:\\Users\\Admin\\jouihog.exe /x" jouihog.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jouihog = "C:\\Users\\Admin\\jouihog.exe /m" jouihog.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jouihog = "C:\\Users\\Admin\\jouihog.exe /w" jouihog.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jouihog = "C:\\Users\\Admin\\jouihog.exe /k" jouihog.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ jouihog.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jouihog = "C:\\Users\\Admin\\jouihog.exe /p" jouihog.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jouihog = "C:\\Users\\Admin\\jouihog.exe /z" jouihog.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jouihog = "C:\\Users\\Admin\\jouihog.exe /u" jouihog.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jouihog = "C:\\Users\\Admin\\jouihog.exe /d" jouihog.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jouihog = "C:\\Users\\Admin\\jouihog.exe /i" jouihog.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jouihog = "C:\\Users\\Admin\\jouihog.exe /h" b94b9ba8756eab9b431156e18dc1aa711669e2eab31c298b07194d54e8f00a28.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jouihog = "C:\\Users\\Admin\\jouihog.exe /c" jouihog.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jouihog = "C:\\Users\\Admin\\jouihog.exe /e" jouihog.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jouihog = "C:\\Users\\Admin\\jouihog.exe /v" jouihog.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ b94b9ba8756eab9b431156e18dc1aa711669e2eab31c298b07194d54e8f00a28.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 62 IoCs
pid Process 4112 b94b9ba8756eab9b431156e18dc1aa711669e2eab31c298b07194d54e8f00a28.exe 4112 b94b9ba8756eab9b431156e18dc1aa711669e2eab31c298b07194d54e8f00a28.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe 4824 jouihog.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4112 b94b9ba8756eab9b431156e18dc1aa711669e2eab31c298b07194d54e8f00a28.exe 4824 jouihog.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4112 wrote to memory of 4824 4112 b94b9ba8756eab9b431156e18dc1aa711669e2eab31c298b07194d54e8f00a28.exe 100 PID 4112 wrote to memory of 4824 4112 b94b9ba8756eab9b431156e18dc1aa711669e2eab31c298b07194d54e8f00a28.exe 100 PID 4112 wrote to memory of 4824 4112 b94b9ba8756eab9b431156e18dc1aa711669e2eab31c298b07194d54e8f00a28.exe 100
Processes
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C:\Users\Admin\AppData\Local\Temp\b94b9ba8756eab9b431156e18dc1aa711669e2eab31c298b07194d54e8f00a28.exe"C:\Users\Admin\AppData\Local\Temp\b94b9ba8756eab9b431156e18dc1aa711669e2eab31c298b07194d54e8f00a28.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:4112 -
C:\Users\Admin\jouihog.exe"C:\Users\Admin\jouihog.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:4824
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
80KB
MD5240f6d43b9d4bd1ffc6eac72c1b98227
SHA1254d49fc2a78ffd7c1d86d6bcb10090d3df89dda
SHA2566997884d1bb6f2a3fb9fd00ef4ca7cd09b55865c12e31a5ae3a969cc3c044115
SHA51280175082b832932c8fc9954305c7b016afa043e0fe0762f575cbb210e038eccabc3ccb79bd148517f88e21edc484d2c53f55fadd717eacc0e96a39cdb246d78c
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Filesize
80KB
MD5240f6d43b9d4bd1ffc6eac72c1b98227
SHA1254d49fc2a78ffd7c1d86d6bcb10090d3df89dda
SHA2566997884d1bb6f2a3fb9fd00ef4ca7cd09b55865c12e31a5ae3a969cc3c044115
SHA51280175082b832932c8fc9954305c7b016afa043e0fe0762f575cbb210e038eccabc3ccb79bd148517f88e21edc484d2c53f55fadd717eacc0e96a39cdb246d78c