General
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Target
ratka.exe
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Size
80KB
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Sample
250302-vkvdeszkt2
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MD5
39ffa7b287f2d822703a6deea560dcbd
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SHA1
34ae6406ec73ad02955cb7676b37489fdab1695b
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SHA256
9465f48edb12c0ecfe182d5d6a91be86afd52c152b61c3916efb09df3a90cb05
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SHA512
7efa49f3c9ba846d6382e7683d64a5b00232c459028a177b07c0e4f28f06682bd3a219421a355515766007bee9e0dfcce5e243afba73290487057542a644cc40
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SSDEEP
1536:GeKbbG1+cDVWr5hLbwWV5hcEW07Z4E+bCXsEN9qtgq6rLs4ORpmcG1h:GeKbb60r5hLbwWVcPk1+b8JY4ORpmth
Behavioral task
behavioral1
Sample
ratka.exe
Resource
win10ltsc2021-20250217-en
Malware Config
Extracted
xworm
cause-indexes.gl.at.ply.gg:17210
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Install_directory
%AppData%
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install_file
XClient.exe
Targets
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Target
ratka.exe
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Size
80KB
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MD5
39ffa7b287f2d822703a6deea560dcbd
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SHA1
34ae6406ec73ad02955cb7676b37489fdab1695b
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SHA256
9465f48edb12c0ecfe182d5d6a91be86afd52c152b61c3916efb09df3a90cb05
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SHA512
7efa49f3c9ba846d6382e7683d64a5b00232c459028a177b07c0e4f28f06682bd3a219421a355515766007bee9e0dfcce5e243afba73290487057542a644cc40
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SSDEEP
1536:GeKbbG1+cDVWr5hLbwWV5hcEW07Z4E+bCXsEN9qtgq6rLs4ORpmcG1h:GeKbb60r5hLbwWVcPk1+b8JY4ORpmth
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Detect Xworm Payload
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Xworm family
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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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Disables Task Manager via registry modification
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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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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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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1