General
Static task
static1
URLScan task
urlscan1
Malware Config
Extracted
darkcomet
Guest16
5.39.43.50:1609
5.39.43.50:1610
DC_MUTEX-NJU5JXL
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InstallPath
MSDCSC\msdcsc.exe
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gencode
CyfxMZvzryrY
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install
true
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offline_keylogger
true
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persistence
false
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reg_key
MicroUpdate
Targets
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Target
https://pixeldrain.com/u/xLBcXGAD
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Modifies WinLogon for persistence
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Modifies firewall policy service
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Modifies security service
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Contacts a large (2609) amount of remote hosts
This may indicate a network scan to discover remotely running services.
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Disables RegEdit via registry modification
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Disables Task Manager via registry modification
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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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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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Modifies system executable filetype association
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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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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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Creates a large amount of network flows
This may indicate a network scan to discover remotely running services.
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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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Maps connected drives based on registry
Disk information is often read in order to detect sandboxing environments.
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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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Suspicious use of NtSetInformationThreadHideFromDebugger
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
5Registry Run Keys / Startup Folder
4Winlogon Helper DLL
1Browser Extensions
1Create or Modify System Process
2Windows Service
2Event Triggered Execution
1Change Default File Association
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Boot or Logon Autostart Execution
5Registry Run Keys / Startup Folder
4Winlogon Helper DLL
1Create or Modify System Process
2Windows Service
2Event Triggered Execution
1Change Default File Association
1Defense Evasion
Impair Defenses
2Disable or Modify Tools
2Modify Registry
12Pre-OS Boot
1Bootkit
1Subvert Trust Controls
1Install Root Certificate
1