General
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Target
.
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Size
11KB
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Sample
240504-wezlmadc2t
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MD5
771dfeb6648da2f3cae036e72cd5c159
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SHA1
ee5a158cfdb8be10efac714fd6895097eb37bf7d
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SHA256
184cfda9476c09798764f78744ace801737869dd30da8a81480b471a10f37c22
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SHA512
12da87cb9f8ecc579c1085c3a76d13aac4a05d2c6c1d1d187b69df9ea78713941af16b91ff8434d3d1851012e6db2025193ceca5f4bee1fbdea07c341da3f1c4
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SSDEEP
192:8aGC919XNWBr8kG3WHeY9QVzP5j8oU0AuW9PMnytNkcV8K3x8UV6+hHrXAk:T9199WFzOWHevVzPJ88zxnyteA8yxPVN
Static task
static1
Behavioral task
behavioral1
Sample
.html
Resource
win10v2004-20240426-en
Malware Config
Targets
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Target
.
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Size
11KB
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MD5
771dfeb6648da2f3cae036e72cd5c159
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SHA1
ee5a158cfdb8be10efac714fd6895097eb37bf7d
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SHA256
184cfda9476c09798764f78744ace801737869dd30da8a81480b471a10f37c22
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SHA512
12da87cb9f8ecc579c1085c3a76d13aac4a05d2c6c1d1d187b69df9ea78713941af16b91ff8434d3d1851012e6db2025193ceca5f4bee1fbdea07c341da3f1c4
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SSDEEP
192:8aGC919XNWBr8kG3WHeY9QVzP5j8oU0AuW9PMnytNkcV8K3x8UV6+hHrXAk:T9199WFzOWHevVzPJ88zxnyteA8yxPVN
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CrimsonRAT main payload
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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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Suspicious use of NtCreateProcessExOtherParentProcess
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Suspicious use of NtCreateUserProcessOtherParentProcess
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RevengeRat Executable
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Creates new service(s)
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Downloads MZ/PE file
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Drops file in Drivers directory
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Modifies Installed Components in the registry
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Modifies RDP port number used by Windows
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Modifies Windows Firewall
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Sets file execution options in registry
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Sets service image path in registry
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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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Registers COM server for autorun
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Unexpected DNS network traffic destination
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
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Uses the VBS compiler for execution
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Adds Run key to start application
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Checks for any installed AV software in registry
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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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Drops desktop.ini file(s)
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Legitimate hosting services abused for malware hosting/C2
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Writes to the Master Boot Record (MBR)
Bootkits write to the MBR to gain persistence at a level below the operating system.
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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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Drops file in System32 directory
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MITRE ATT&CK Enterprise v15
Execution
Scheduled Task/Job
1Scripting
1System Services
1Service Execution
1Persistence
Boot or Logon Autostart Execution
5Registry Run Keys / Startup Folder
5Browser Extensions
1Create or Modify System Process
2Windows Service
2Pre-OS Boot
1Bootkit
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
5Registry Run Keys / Startup Folder
5Create or Modify System Process
2Windows Service
2Scheduled Task/Job
1Defense Evasion
Hide Artifacts
2Hidden Files and Directories
2Impair Defenses
2Disable or Modify System Firewall
1Disable or Modify Tools
1Modify Registry
10Pre-OS Boot
1Bootkit
1Scripting
1Subvert Trust Controls
1Install Root Certificate
1