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General
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Target
MD250203AAAAU-000001_R1197_RANSOM_6415481494_94f5025565ef015551cba6496fff45e9xx
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Size
938KB
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Sample
250327-gps49szn15
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MD5
94f5025565ef015551cba6496fff45e9
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SHA1
b84200b92c5ea7aefec65f52720341d1678dd004
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SHA256
c5cd175304b9d1990a2a60a3e2ae06ea3875767af0761a33c2f4a93a6c490a70
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SHA512
e237e2c18fcf3f1982dd989395595fbb43f23b01c313e369cc09b558a6c62cb98914e921ebffba734a11216d72a14cc0544f042adcf0a0b3fd8141d27176343d
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SSDEEP
24576:yqDEvCTbMWu7rQYlBQcBiT6rprG8aegl:yTvC/MTQYxsWR7aeg
Static task
static1
Behavioral task
behavioral1
Sample
MD250203AAAAU-000001_R1197_RANSOM_6415481494_94f5025565ef015551cba6496fff45e9xx.exe
Resource
win7-20240903-en
Malware Config
Extracted
http://185.215.113.16/defend/random.exe
Targets
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Target
MD250203AAAAU-000001_R1197_RANSOM_6415481494_94f5025565ef015551cba6496fff45e9xx
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Size
938KB
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MD5
94f5025565ef015551cba6496fff45e9
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SHA1
b84200b92c5ea7aefec65f52720341d1678dd004
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SHA256
c5cd175304b9d1990a2a60a3e2ae06ea3875767af0761a33c2f4a93a6c490a70
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SHA512
e237e2c18fcf3f1982dd989395595fbb43f23b01c313e369cc09b558a6c62cb98914e921ebffba734a11216d72a14cc0544f042adcf0a0b3fd8141d27176343d
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SSDEEP
24576:yqDEvCTbMWu7rQYlBQcBiT6rprG8aegl:yTvC/MTQYxsWR7aeg
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Detects Healer an antivirus disabler dropper
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Healer family
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Modifies Windows Defender Real-time Protection settings
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Modifies Windows Defender notification settings
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Identifies VirtualBox via ACPI registry values (likely anti-VM)
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Blocklisted process makes network request
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Downloads MZ/PE file
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Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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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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Identifies Wine through registry keys
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
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Loads dropped DLL
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Windows security modification
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Suspicious use of NtSetInformationThreadHideFromDebugger
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MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Create or Modify System Process
4Windows Service
4Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Create or Modify System Process
4Windows Service
4Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Impair Defenses
5Disable or Modify Tools
5Modify Registry
6Virtualization/Sandbox Evasion
2