General
- Target lc(4).exe
- Size 16.2MB
- Sample260910-z2y56aytes
- SHA256 949061914168c2c2b301472c6478b5d099774ed2aefcab1fd259b304c79762da
- MD5 e10bde317baf1adca2f14d66b1938112
- SHA1 88187f9edd18bb557e9ca6004100e500218dffda
- SHA512 5a71830870ba7c938d909aecda503212c69c9b42cb67daa01efe3ae39bf0292a0f02f0535a9c57f9d07f54e9c7542df0a4b62757621bcea637ce0a00437a8046
- SSDEEP 49152:1xn9du9BJAiiWGgt9IPXY32Z0PYriUTkqyDaDXVLh5PAzuKTW/UMXkRRJzS6i0sL:1x9
- TLSH T135073038B9D518BE7B6759EE87F63A9D5909F3BBB3065D7C20B2314A43039098CE4724
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
Behavioral task
behavioral1
Sample
lc(4).exe
Resource
win10ltsc2021-20260513-en
Malware Config
Targets
-
- Target lc(4).exe
- Size 16.2MB
- SHA256 949061914168c2c2b301472c6478b5d099774ed2aefcab1fd259b304c79762da
- MD5 e10bde317baf1adca2f14d66b1938112
- SHA1 88187f9edd18bb557e9ca6004100e500218dffda
- SHA512 5a71830870ba7c938d909aecda503212c69c9b42cb67daa01efe3ae39bf0292a0f02f0535a9c57f9d07f54e9c7542df0a4b62757621bcea637ce0a00437a8046
- SSDEEP 49152:1xn9du9BJAiiWGgt9IPXY32Z0PYriUTkqyDaDXVLh5PAzuKTW/UMXkRRJzS6i0sL:1x9
- TLSH T135073038B9D518BE7B6759EE87F63A9D5909F3BBB3065D7C20B2314A43039098CE4724
- 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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Modifies WinLogon for persistence
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Modifies Windows Defender Real-time Protection settings
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UAC bypass
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Boot or Logon Autostart Execution: Active Setup
Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
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Disables RegEdit via registry modification
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Disables Task Manager via registry modification
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Disables cmd.exe use via registry modification
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Drops file in Drivers directory
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Event Triggered Execution: Image File Execution Options Injection
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE
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Stops running service(s)
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Checks whether UAC is enabled
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Indicator Removal: Clear Persistence
Clear artifacts associated with previously established persistence like scheduletasks on a host.
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Executes a VBScript file via the Windows Script Host.
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Hide Artifacts: Hidden Files and Directories
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Sets desktop wallpaper using registry
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
3PowerShell
1Visual Basic
1Windows Command Shell
1Scheduled Task/Job
1Scheduled Task
1System Services
1Service Execution
1Persistence
Boot or Logon Autostart Execution
2Active Setup
1Winlogon Helper DLL
1Create or Modify System Process
3Windows Service
3Event Triggered Execution
1Image File Execution Options Injection
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
2Active Setup
1Winlogon Helper DLL
1Create or Modify System Process
3Windows Service
3Event Triggered Execution
1Image File Execution Options Injection
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Hide Artifacts
1Hidden Files and Directories
1Impair Defenses
4Disable or Modify Tools
3Indicator Removal
1Clear Persistence
1Modify Registry
8