General
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Target
lol.exe
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Size
4.3MB
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Sample
240523-q9hnpsdd5y
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MD5
db328f188ed341579a63b66c109670a1
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SHA1
3ac3932b8b1696967e9a75da7f3b1cfcb2b22df5
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SHA256
2cdb40eac305ccd9d25319aab18d9af4f1be4068ab65dd5f18ba8841c71a9464
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SHA512
53e3c175ad68c66d9426e03bdb094ceb8febd89eae89b3b6f7f635efc78119f70723f08b30ee0752cb8ac33fba174d0efe46427f508906865eab86486366a59a
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SSDEEP
49152:WoGapAv1vYjUbQgvdkMgl2Zu7jfWL2ntzMqS1MTetxQnVIqwlwHnEOGc:WoGapAv1vYjWSMy7PlnVw1/6q1ONB
Malware Config
Targets
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Target
lol.exe
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Size
4.3MB
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MD5
db328f188ed341579a63b66c109670a1
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SHA1
3ac3932b8b1696967e9a75da7f3b1cfcb2b22df5
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SHA256
2cdb40eac305ccd9d25319aab18d9af4f1be4068ab65dd5f18ba8841c71a9464
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SHA512
53e3c175ad68c66d9426e03bdb094ceb8febd89eae89b3b6f7f635efc78119f70723f08b30ee0752cb8ac33fba174d0efe46427f508906865eab86486366a59a
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SSDEEP
49152:WoGapAv1vYjUbQgvdkMgl2Zu7jfWL2ntzMqS1MTetxQnVIqwlwHnEOGc:WoGapAv1vYjWSMy7PlnVw1/6q1ONB
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Detect Umbral payload
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Modifies visibility of file extensions in Explorer
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Modifies visiblity of hidden/system files in Explorer
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Disables RegEdit via registry modification
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Modifies Installed Components in the registry
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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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Modifies file permissions
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Adds Run key to start application
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Drops desktop.ini file(s)
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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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Modifies WinLogon
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AutoIT Executable
AutoIT scripts compiled to PE executables.
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Drops file in System32 directory
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
3Registry Run Keys / Startup Folder
2Winlogon Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
3Registry Run Keys / Startup Folder
2Winlogon Helper DLL
1Defense Evasion
File and Directory Permissions Modification
1Hide Artifacts
2Hidden Files and Directories
2Impair Defenses
2Disable or Modify Tools
2Modify Registry
8