General
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Target
skrLoader .exe
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Size
2.5MB
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Sample
240728-2s66hszaqq
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MD5
c7c055ea5a4ff27236bb9c1bc562d0d9
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SHA1
abf36d75c3f195d2d892890d686af86f7eb39123
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SHA256
198a4fc5e976e2c061955169a5577900995b200c0a301f16e8334da1b8390015
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SHA512
30d1ca92d3c54ae22a1d702f32a698b86aff7c3174ec0557d682d34226d65ea4bbee9f834bf6a4ae788ad4135558bed90a258828b6d1f93c04b55a19b506a8e1
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SSDEEP
49152:hUv026HUoB0KrW85+FGRs62zcvx0pCRvmZFw5mCx1CUqBpLfQuDumXoSDLp:50tKrrEBA0oROZFw5mW1CUqBpJbDL
Static task
static1
Behavioral task
behavioral1
Sample
skrLoader .exe
Resource
win10v2004-20240709-en
Malware Config
Extracted
xworm
147.185.221.16:60401
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Install_directory
%LocalAppData%
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install_file
svchost.exe
Targets
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Target
skrLoader .exe
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Size
2.5MB
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MD5
c7c055ea5a4ff27236bb9c1bc562d0d9
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SHA1
abf36d75c3f195d2d892890d686af86f7eb39123
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SHA256
198a4fc5e976e2c061955169a5577900995b200c0a301f16e8334da1b8390015
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SHA512
30d1ca92d3c54ae22a1d702f32a698b86aff7c3174ec0557d682d34226d65ea4bbee9f834bf6a4ae788ad4135558bed90a258828b6d1f93c04b55a19b506a8e1
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SSDEEP
49152:hUv026HUoB0KrW85+FGRs62zcvx0pCRvmZFw5mCx1CUqBpLfQuDumXoSDLp:50tKrrEBA0oROZFw5mW1CUqBpJbDL
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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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Credentials from Password Stores: Credentials from Web Browsers
Malicious Access or copy of Web Browser Credential store.
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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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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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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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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
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
1Disable or Modify Tools
1Modify Registry
3Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1