General
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Target
Solaris_real.zip
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Size
7.2MB
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Sample
250404-bnzyjaxvgs
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MD5
2c13fdab896f85fc7a87cdda76455996
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SHA1
886a23d58a658d740719bc56ce80780e6ad6be1f
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SHA256
a1f1f23d1080f1a68fb21018fab72c45b6d528c1a06a6391487c19a0c7aa2451
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SHA512
9fbd1ef2136f0cf0151a87c8f3bc9c72b88c1bdc4015059396e7c75fae71b8f44a87be7f556254f98d41084b973ecef9424974e2191f9cfa3ffee9d0d5b97362
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SSDEEP
196608:ORlEkg3BzkjoKEhgmdT4YMgBcj9sKOAOISlFk/kiMX26H:ORl+3BooHGKT446j/OoSlFCkip6H
Static task
static1
Behavioral task
behavioral1
Sample
Solaris.exe
Resource
win10ltsc2021-20250314-ja
Malware Config
Targets
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Target
Solaris.exe
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Size
7.2MB
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MD5
54259a70a86ba3add0d89979e62854cd
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SHA1
7e4045edace566fbf9a0260d57b0f682f06a7e6b
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SHA256
b0433f33e6ff471fb357941a07d5262e61ed6999d8d025031c2029092f4bfacc
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SHA512
c553fc6aaacfc6d8bfce08e8636fd42fd98a40d6ff2c671e8ae82635894aed5c14eb50ce0fe811da89f8bc5a2a885d2a911ca086bf9a1dce290b75985d4b235d
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SSDEEP
196608:WRhEG05ltetqEG/gGhj8aAkF8BpM8koCeIXFark6i9y8z:WRhG5lsqP4Yj8keBBkOIXFGk638z
Score10/10-
Modifies WinLogon for persistence
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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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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Writes to the Master Boot Record (MBR)
Bootkits write to the MBR to gain persistence at a level below the operating system.
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Defense Evasion
File and Directory Permissions Modification
1Modify Registry
2Pre-OS Boot
1Bootkit
1