General
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Target
https://drive.google.com/file/d/16MwbENvB3elvioZTAxL9nhwq3TuAOKqn/view
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Sample
240310-m5ff1abb32
Static task
static1
URLScan task
urlscan1
Behavioral task
behavioral1
Sample
https://drive.google.com/file/d/16MwbENvB3elvioZTAxL9nhwq3TuAOKqn/view
Resource
win10v2004-20240226-en
Malware Config
Targets
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Target
https://drive.google.com/file/d/16MwbENvB3elvioZTAxL9nhwq3TuAOKqn/view
Score10/10-
Detect Umbral payload
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Downloads MZ/PE file
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Modifies Windows Firewall
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Sets file execution options in registry
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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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Loads dropped DLL
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Registers COM server for autorun
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Adds Run key to start application
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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Legitimate hosting services abused for malware hosting/C2
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Checks system information in the registry
System information is often read in order to detect sandboxing environments.
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Suspicious use of NtCreateThreadExHideFromDebugger
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Suspicious use of NtSetInformationThreadHideFromDebugger
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
3Registry Run Keys / Startup Folder
3Create or Modify System Process
1Windows Service
1Privilege Escalation
Boot or Logon Autostart Execution
3Registry Run Keys / Startup Folder
3Create or Modify System Process
1Windows Service
1Defense Evasion
Impair Defenses
1Disable or Modify System Firewall
1Modify Registry
3