General
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Target
3d79293d371d3393d83f0d6205c35263baa3618a6f3ccba4fcefbee999d4a714.exe
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Size
16.0MB
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Sample
250114-cv7sdswpbj
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MD5
5aa236eabe65a1e444f1eb31fb330eba
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SHA1
b6a8d5362991511526ea5a2b86ad70f05e70652c
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SHA256
3d79293d371d3393d83f0d6205c35263baa3618a6f3ccba4fcefbee999d4a714
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SHA512
0ab8e56f1f8a09491d96416bdc2798874ff153ef56c6476cd9eda9fe0744e77f56132073524f1a2719a75d5dea8dcd5706ee1497867f8b3e62c9a52641afc0be
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SSDEEP
98304:mjHzjFPB6n2gC9U851tTRIXDNgn+ojsSw9y4Q1vL3NPt:yHHFPgns9BvpyNgnNW4
Static task
static1
Behavioral task
behavioral1
Sample
3d79293d371d3393d83f0d6205c35263baa3618a6f3ccba4fcefbee999d4a714.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
3d79293d371d3393d83f0d6205c35263baa3618a6f3ccba4fcefbee999d4a714.exe
Resource
win10v2004-20241007-en
Malware Config
Targets
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Target
3d79293d371d3393d83f0d6205c35263baa3618a6f3ccba4fcefbee999d4a714.exe
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Size
16.0MB
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MD5
5aa236eabe65a1e444f1eb31fb330eba
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SHA1
b6a8d5362991511526ea5a2b86ad70f05e70652c
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SHA256
3d79293d371d3393d83f0d6205c35263baa3618a6f3ccba4fcefbee999d4a714
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SHA512
0ab8e56f1f8a09491d96416bdc2798874ff153ef56c6476cd9eda9fe0744e77f56132073524f1a2719a75d5dea8dcd5706ee1497867f8b3e62c9a52641afc0be
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SSDEEP
98304:mjHzjFPB6n2gC9U851tTRIXDNgn+ojsSw9y4Q1vL3NPt:yHHFPgns9BvpyNgnNW4
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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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Modifies WinLogon for persistence
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Process spawned unexpected child process
This typically indicates the parent process was compromised via an exploit or macro.
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Command and Scripting Interpreter: PowerShell
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
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Disables Task Manager via registry modification
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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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Loads dropped DLL
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Adds Run key to start application
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Drops file in System32 directory
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MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Scheduled Task/Job
1Scheduled Task
1