General
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Target
NursultanCrack.exe
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Size
1.7MB
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Sample
241130-qbdbbsynfl
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MD5
062e3b4cd1878667da10f08bdd209dd6
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SHA1
c6d785f9df07b202f2db280016c5773092dd111a
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SHA256
2ebcbc7ecacf1e3398613aa73dc2bff59b0bc0cf2724b68a20fe071a054c2d80
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SHA512
6e598e330cb1c9db77edca1ea51d8aaa1939278a3ba480e2eb922a8b0f17b28a768150dbdcf660ae51468967dd447580bc68bf428148ea1ccecec85c67719fd6
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SSDEEP
49152:3BIjEaf0EC0bEvDC3B6Bo2UPjAgAecjJl/ud:xQEwvAC3oUPjuRlmd
Static task
static1
Behavioral task
behavioral1
Sample
NursultanCrack.exe
Resource
win10ltsc2021-20241023-en
Behavioral task
behavioral2
Sample
NursultanCrack.exe
Resource
win11-20241007-en
Malware Config
Targets
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Target
NursultanCrack.exe
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Size
1.7MB
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MD5
062e3b4cd1878667da10f08bdd209dd6
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SHA1
c6d785f9df07b202f2db280016c5773092dd111a
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SHA256
2ebcbc7ecacf1e3398613aa73dc2bff59b0bc0cf2724b68a20fe071a054c2d80
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SHA512
6e598e330cb1c9db77edca1ea51d8aaa1939278a3ba480e2eb922a8b0f17b28a768150dbdcf660ae51468967dd447580bc68bf428148ea1ccecec85c67719fd6
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SSDEEP
49152:3BIjEaf0EC0bEvDC3B6Bo2UPjAgAecjJl/ud:xQEwvAC3oUPjuRlmd
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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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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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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
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1