General
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Target
N1NC5_solara.exe
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Size
2.8MB
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Sample
250412-s2lfqsxvhy
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MD5
d4ef72e55ee8d916a060dae174398888
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SHA1
92dc6ce33833a32e70d377bd6d66a17c0fd2369a
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SHA256
852a0e2b6016d2b2e0953c50e0985fe60320a70e73515cfea7706f86130a06ca
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SHA512
a814c8a43b4602888c9f12969f96c83c193528a7679ee8432da8f8e4b11a1379e35c4b07ad6cedec5e434d0b5ec7ad8124bbd6f3092fbcd0acc1b98fbb144f16
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SSDEEP
49152:G5wRNpPAI7CYItONjnwsp61qLJa2uQzdqYoqDLdS96A4zDziq2EJLFp2C/Xv:GaRvROYEQEqFajKoqDLgMAI2KLmC/X
Static task
static1
Behavioral task
behavioral1
Sample
N1NC5_solara.exe
Resource
win10v2004-20250314-en
Malware Config
Targets
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Target
N1NC5_solara.exe
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Size
2.8MB
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MD5
d4ef72e55ee8d916a060dae174398888
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SHA1
92dc6ce33833a32e70d377bd6d66a17c0fd2369a
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SHA256
852a0e2b6016d2b2e0953c50e0985fe60320a70e73515cfea7706f86130a06ca
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SHA512
a814c8a43b4602888c9f12969f96c83c193528a7679ee8432da8f8e4b11a1379e35c4b07ad6cedec5e434d0b5ec7ad8124bbd6f3092fbcd0acc1b98fbb144f16
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SSDEEP
49152:G5wRNpPAI7CYItONjnwsp61qLJa2uQzdqYoqDLdS96A4zDziq2EJLFp2C/Xv:GaRvROYEQEqFajKoqDLgMAI2KLmC/X
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Detect Umbral payload
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Umbral family
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Disables Task Manager via registry modification
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Modifies Windows Firewall
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Drops startup file
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Executes dropped EXE
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Adds Run key to start application
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Legitimate hosting services abused for malware hosting/C2
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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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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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Drops file in System32 directory
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MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Defense Evasion
Impair Defenses
1Disable or Modify System Firewall
1Modify Registry
1Pre-OS Boot
1Bootkit
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1