General
- Target UwU-client.exe
- Size 244KB
- Sample261014-ak2saasy6q
- SHA256 ef977b955df7ad07c5c5e061331a92b9281b78d1dd5d2364907d1872f0fd6367
- MD5 3fbd7fefc5fcfcd3bf05046c7ce600d9
- SHA1 1baa830f02b42b3ed06221957d037e8aad20a609
- SHA512 368affb1bcab7137b99d6cd8bdf5b7afca7976de4664f8a0de862942345f46e9f117430ce3ee708bddcdc06471ee9c0ec5c578ce30c9c36e1b5cfa5872d6c21a
- SSDEEP 6144:h54PLiQpsheEZdwlW7b54jbzxIfmW4RzmSL5sSBq8bSxL26Pa5:hqLDEZdwlwbOPlIeWev+oq1a5
- TLSH T10834DF0027E88626F6FE9F787CF1554049B6F8636A1ADB4E1C8440DD0A72FC5D962BF2
- MD5 SHA1 SHA512 SSDEEP TLSH
Behavioral task
behavioral1
Sample
UwU-client.exe
Resource
win10v2004-20260911-en
Malware Config
Targets
-
- Target UwU-client.exe
- Size 244KB
- SHA256 ef977b955df7ad07c5c5e061331a92b9281b78d1dd5d2364907d1872f0fd6367
- MD5 3fbd7fefc5fcfcd3bf05046c7ce600d9
- SHA1 1baa830f02b42b3ed06221957d037e8aad20a609
- SHA512 368affb1bcab7137b99d6cd8bdf5b7afca7976de4664f8a0de862942345f46e9f117430ce3ee708bddcdc06471ee9c0ec5c578ce30c9c36e1b5cfa5872d6c21a
- SSDEEP 6144:h54PLiQpsheEZdwlW7b54jbzxIfmW4RzmSL5sSBq8bSxL26Pa5:hqLDEZdwlwbOPlIeWev+oq1a5
- TLSH T10834DF0027E88626F6FE9F787CF1554049B6F8636A1ADB4E1C8440DD0A72FC5D962BF2
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Contains code to disable Windows Defender
A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.
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Downloads MZ/PE file
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Drops file in Drivers directory
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Event Triggered Execution: Component Object Model Hijacking
Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.
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Executes dropped EXE
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Loads dropped DLL
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Modifies system executable filetype association
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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Contacts third-party web service commonly abused for C2
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
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Executes a VBScript file via the Windows Script Host.
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
2Visual Basic
1Windows Command Shell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Event Triggered Execution
2Change Default File Association
1Component Object Model Hijacking
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Event Triggered Execution
2Change Default File Association
1Component Object Model Hijacking
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Modify Registry
3Subvert Trust Controls
1Install Root Certificate
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1