General
- Target 34cb7fca8cb671327865d0bcf6de72bc.exe
- Size 11.4MB
- Sample240620-vmdtfssfjk
- SHA256 a6a27d9ba682a107558cdb16fcd50ebbe3d112c8dab38e96d5926c522781cc81
- MD5 34cb7fca8cb671327865d0bcf6de72bc
- SHA1 f0b1cedace31b386c893530e6dce75c2ecfef083
- SHA512 a09a2fd355e0e7f7a7bf0c25fee3300d7e695f1871514181aef6cb7c5d9f085f6a3003cfea423ad3c79d1b463b2dd3e323c84ae6d8e352483270ee20e520d373
- SSDEEP 196608:gcoxkLeUoO9/jmTUkXBnG9u21tvj0brnXiT8QPLaUQrsl2az0Desq3UOF2iQsmR3:rjLQO/64kBUu2vvjU2Tr+UfIaz0DgV2P
- MD5 SHA1 SHA512 SSDEEP
Static task
static1
Behavioral task
behavioral1
Sample
34cb7fca8cb671327865d0bcf6de72bc.exe
Resource
win7-20240419-en
Behavioral task
behavioral2
Sample
34cb7fca8cb671327865d0bcf6de72bc.exe
Resource
win10v2004-20240611-en
Malware Config
Targets
-
- Target 34cb7fca8cb671327865d0bcf6de72bc.exe
- Size 11.4MB
- SHA256 a6a27d9ba682a107558cdb16fcd50ebbe3d112c8dab38e96d5926c522781cc81
- MD5 34cb7fca8cb671327865d0bcf6de72bc
- SHA1 f0b1cedace31b386c893530e6dce75c2ecfef083
- SHA512 a09a2fd355e0e7f7a7bf0c25fee3300d7e695f1871514181aef6cb7c5d9f085f6a3003cfea423ad3c79d1b463b2dd3e323c84ae6d8e352483270ee20e520d373
- SSDEEP 196608:gcoxkLeUoO9/jmTUkXBnG9u21tvj0brnXiT8QPLaUQrsl2az0Desq3UOF2iQsmR3:rjLQO/64kBUu2vvjU2Tr+UfIaz0DgV2P
- MD5 SHA1 SHA512 SSDEEP
-
DcRat
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
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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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Identifies VirtualBox via ACPI registry values (likely anti-VM)
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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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Drops file in Drivers directory
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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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Loads dropped DLL
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Accesses cryptocurrency files/wallets, possible credential harvesting
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Adds Run key to start application
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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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Hide Artifacts: Hidden Files and Directories
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Suspicious use of NtSetInformationThreadHideFromDebugger
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
1Event Triggered Execution
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Event Triggered Execution
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Hide Artifacts
2Hidden Files and Directories
2Impair Defenses
1Disable or Modify Tools
1Modify Registry
5Subvert Trust Controls
1Install Root Certificate
1Virtualization/Sandbox Evasion
1