General
Static task
static1
URLScan task
urlscan1
Malware Config
Extracted
asyncrat
Tsurugi RATs
Default
213.136.90.188:4449
zteprqyjlfgxrxuaid
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delay
1
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install
true
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install_file
Check Windows Update.exe
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install_folder
%AppData%
Extracted
xworm
213.136.90.188:7000
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Install_directory
%Userprofile%
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install_file
Microsoft Edgs.exe
Targets
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-
Target
http://213.136.90.188:8081/
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Asyncrat family
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Contains code to disable Windows Defender
A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.
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Detect Xworm Payload
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StormKitty payload
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Stormkitty family
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Suspicious use of NtCreateUserProcessOtherParentProcess
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Xworm family
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Async RAT payload
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Downloads MZ/PE file
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Drops startup file
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Executes dropped EXE
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Adds Run key to start application
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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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MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
2Windows Service
2Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
2Windows Service
2Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
3Disable or Modify Tools
3Modify Registry
5Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1