Analysis
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max time kernel
149s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system -
submitted
19/04/2024, 20:09
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
3086ca20eea507ac1eaf5a929c3538005f640808703da3aae230ef0c69a50a87.exe
Resource
win7-20231129-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
3086ca20eea507ac1eaf5a929c3538005f640808703da3aae230ef0c69a50a87.exe
Resource
win10v2004-20240412-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
3086ca20eea507ac1eaf5a929c3538005f640808703da3aae230ef0c69a50a87.exe
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Size
248KB
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MD5
4bedb667a4271fa0f435c774fe4799c2
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SHA1
b63c4b65aabc86e5752d58c4a8208953d97190e1
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SHA256
3086ca20eea507ac1eaf5a929c3538005f640808703da3aae230ef0c69a50a87
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SHA512
4aaf32b178b2956e8e8e19b9aab9c2c958ff051108d93c712adca4ca267295a1c410293591edab4a222b34188d356ad2bed2eb1ecb5661f9930f46c70c681b47
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SSDEEP
3072:rNV217h3TaGUe1AK8b/EQk28wlowM6bz1gNNdrHd1fdVcjsQyO1obMwmeBnZ4D:5mr1U/EQk28wloIbIVysQsRme1Zk
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-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 3086ca20eea507ac1eaf5a929c3538005f640808703da3aae230ef0c69a50a87.exe Set value (int) \REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" couumo.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-1-5-21-4084619521-2220719027-1909462854-1000\Control Panel\International\Geo\Nation 3086ca20eea507ac1eaf5a929c3538005f640808703da3aae230ef0c69a50a87.exe -
Executes dropped EXE 1 IoCs
pid Process 3200 couumo.exe -
Adds Run key to start application 2 TTPs 27 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\couumo = "C:\\Users\\Admin\\couumo.exe /q" couumo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\couumo = "C:\\Users\\Admin\\couumo.exe /m" couumo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\couumo = "C:\\Users\\Admin\\couumo.exe /i" couumo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\couumo = "C:\\Users\\Admin\\couumo.exe /g" couumo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\couumo = "C:\\Users\\Admin\\couumo.exe /y" couumo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\couumo = "C:\\Users\\Admin\\couumo.exe /z" couumo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\couumo = "C:\\Users\\Admin\\couumo.exe /u" couumo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\couumo = "C:\\Users\\Admin\\couumo.exe /t" couumo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\couumo = "C:\\Users\\Admin\\couumo.exe /e" couumo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\couumo = "C:\\Users\\Admin\\couumo.exe /a" couumo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\couumo = "C:\\Users\\Admin\\couumo.exe /l" couumo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\couumo = "C:\\Users\\Admin\\couumo.exe /c" couumo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\couumo = "C:\\Users\\Admin\\couumo.exe /d" couumo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\couumo = "C:\\Users\\Admin\\couumo.exe /j" couumo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\couumo = "C:\\Users\\Admin\\couumo.exe /n" couumo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\couumo = "C:\\Users\\Admin\\couumo.exe /s" couumo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\couumo = "C:\\Users\\Admin\\couumo.exe /k" couumo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\couumo = "C:\\Users\\Admin\\couumo.exe /f" couumo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\couumo = "C:\\Users\\Admin\\couumo.exe /v" couumo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\couumo = "C:\\Users\\Admin\\couumo.exe /b" couumo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\couumo = "C:\\Users\\Admin\\couumo.exe /w" 3086ca20eea507ac1eaf5a929c3538005f640808703da3aae230ef0c69a50a87.exe Set value (str) \REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\couumo = "C:\\Users\\Admin\\couumo.exe /p" couumo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\couumo = "C:\\Users\\Admin\\couumo.exe /w" couumo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\couumo = "C:\\Users\\Admin\\couumo.exe /x" couumo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\couumo = "C:\\Users\\Admin\\couumo.exe /o" couumo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\couumo = "C:\\Users\\Admin\\couumo.exe /h" couumo.exe Set value (str) \REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\couumo = "C:\\Users\\Admin\\couumo.exe /r" couumo.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4848 3086ca20eea507ac1eaf5a929c3538005f640808703da3aae230ef0c69a50a87.exe 4848 3086ca20eea507ac1eaf5a929c3538005f640808703da3aae230ef0c69a50a87.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe 3200 couumo.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4848 3086ca20eea507ac1eaf5a929c3538005f640808703da3aae230ef0c69a50a87.exe 3200 couumo.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4848 wrote to memory of 3200 4848 3086ca20eea507ac1eaf5a929c3538005f640808703da3aae230ef0c69a50a87.exe 87 PID 4848 wrote to memory of 3200 4848 3086ca20eea507ac1eaf5a929c3538005f640808703da3aae230ef0c69a50a87.exe 87 PID 4848 wrote to memory of 3200 4848 3086ca20eea507ac1eaf5a929c3538005f640808703da3aae230ef0c69a50a87.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\3086ca20eea507ac1eaf5a929c3538005f640808703da3aae230ef0c69a50a87.exe"C:\Users\Admin\AppData\Local\Temp\3086ca20eea507ac1eaf5a929c3538005f640808703da3aae230ef0c69a50a87.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:4848 -
C:\Users\Admin\couumo.exe"C:\Users\Admin\couumo.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:3200
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
248KB
MD5e329c32cffa20e120a866407acbdd562
SHA1c02382193a53aae2eb55b5b69bce5ab2181c15b5
SHA2561cc6cdedd3fc83889be520c9db92faf1e97470ea329b4bfe34eecb2166639288
SHA5125f6c5389916e83f50ac733ae7fe2e9c0defdee663ec892828c9e306af2f96a046e055869d5ff44fb492f1fc6cafe43e116a31bb285dcacfd401336027530ee38