General
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Target
7727b8188b78a605f766578aab1cb995.exe
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Size
19.0MB
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Sample
250219-gxqdca1lz7
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MD5
7727b8188b78a605f766578aab1cb995
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SHA1
4c7c56fdfdd300b421c121394ce5a1cb556f9592
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SHA256
bd4e54b8671c85242bf92ee9b90e237db0fecfa97a4298cfeeaaf4d1b40e6c11
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SHA512
4eef5259f1e33329a2b804165204d1b6c7cbba3851ae542ddcfe79fe005ad31440a983b32d3fb36ed04b1c89bae7a4e42d523002059d5d228d5a62e7593717a1
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SSDEEP
393216:9v0t4S8QtZbO8Z9Q9dIcBkvbxrM4mQqHtSMo+9/pWFGRw0qr2W673KH9+8J:9c2S3ZbO8Z9AeeQqHt1o+9/pWQx36d+q
Behavioral task
behavioral1
Sample
7727b8188b78a605f766578aab1cb995.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
7727b8188b78a605f766578aab1cb995.exe
Resource
win10v2004-20250217-en
Malware Config
Extracted
umbral
https://discord.com/api/webhooks/1339207974182191194/Cbspp1D1YgKvkqPsxxLAOiahYoeW0ceIteSYlYtjG202TSZnR-Kj6vR7I8pJsgFtUunb
Targets
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Target
7727b8188b78a605f766578aab1cb995.exe
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Size
19.0MB
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MD5
7727b8188b78a605f766578aab1cb995
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SHA1
4c7c56fdfdd300b421c121394ce5a1cb556f9592
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SHA256
bd4e54b8671c85242bf92ee9b90e237db0fecfa97a4298cfeeaaf4d1b40e6c11
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SHA512
4eef5259f1e33329a2b804165204d1b6c7cbba3851ae542ddcfe79fe005ad31440a983b32d3fb36ed04b1c89bae7a4e42d523002059d5d228d5a62e7593717a1
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SSDEEP
393216:9v0t4S8QtZbO8Z9Q9dIcBkvbxrM4mQqHtSMo+9/pWFGRw0qr2W673KH9+8J:9c2S3ZbO8Z9AeeQqHt1o+9/pWQx36d+q
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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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DcRat
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
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Dcrat family
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Detect Umbral payload
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Exela Stealer
Exela Stealer is an open source stealer originally written in .NET and later transitioned to Python that was first observed in August 2023.
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Exelastealer family
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Modifies Windows Defender Real-time Protection settings
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Umbral family
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Grants admin privileges
Uses net.exe to modify the user's privileges.
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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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Clipboard Data
Adversaries may collect data stored in the clipboard from users copying information within or between applications.
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Deletes itself
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Executes dropped EXE
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Loads dropped DLL
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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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Drops file in System32 directory
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Enumerates processes with tasklist
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Hide Artifacts: Hidden Files and Directories
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Suspicious use of NtSetInformationThreadHideFromDebugger
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MITRE ATT&CK Enterprise v15
Persistence
Account Manipulation
1Create or Modify System Process
3Windows Service
3Event Triggered Execution
1Netsh Helper DLL
1Privilege Escalation
Account Manipulation
1Create or Modify System Process
3Windows Service
3Event Triggered Execution
1Netsh Helper DLL
1Defense Evasion
Hide Artifacts
2Hidden Files and Directories
2Impair Defenses
3Disable or Modify System Firewall
1Disable or Modify Tools
2Modify Registry
3Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Discovery
Browser Information Discovery
1Network Service Discovery
1Permission Groups Discovery
1Local Groups
1Process Discovery
1Query Registry
1System Information Discovery
5System Location Discovery
1System Language Discovery
1System Network Configuration Discovery
1Wi-Fi Discovery
1System Network Connections Discovery
1