General
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Target
skuld.exe
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Size
9.5MB
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Sample
240725-kjtemaycrr
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MD5
a2f0ba384def6f6c6edac90cb7d803a9
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SHA1
2dbbae06b9130e673dc191dc01af2dff33cf8863
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SHA256
54afe2da6a69255732fe076ee50bdc13219eeb6b5d5e07e5273b41dcca68fab2
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SHA512
f7f6e0d31b87f3155f254e58dfdd85aaaaa44bbc1f6499a82b4b1e4401dd35ab62ca0d7c67c8a1b99cce14d6dadd640f2a146a8633663b6c6ce016173bdcf886
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SSDEEP
98304:Df9fEgwfbWcoQbrd3o0VqzYjRfEBN7F/IGGI/:5sFfbL3o0VGYjR8BDGI/
Behavioral task
behavioral1
Sample
skuld.exe
Resource
win7-20240705-en
Behavioral task
behavioral2
Sample
skuld.exe
Resource
win10v2004-20240709-en
Malware Config
Targets
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Target
skuld.exe
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Size
9.5MB
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MD5
a2f0ba384def6f6c6edac90cb7d803a9
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SHA1
2dbbae06b9130e673dc191dc01af2dff33cf8863
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SHA256
54afe2da6a69255732fe076ee50bdc13219eeb6b5d5e07e5273b41dcca68fab2
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SHA512
f7f6e0d31b87f3155f254e58dfdd85aaaaa44bbc1f6499a82b4b1e4401dd35ab62ca0d7c67c8a1b99cce14d6dadd640f2a146a8633663b6c6ce016173bdcf886
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SSDEEP
98304:Df9fEgwfbWcoQbrd3o0VqzYjRfEBN7F/IGGI/:5sFfbL3o0VGYjR8BDGI/
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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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Drops file in Drivers directory
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Unsecured Credentials: Credentials In Files
Steal credentials from unsecured files.
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Accesses cryptocurrency files/wallets, possible credential harvesting
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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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Maps connected drives based on registry
Disk information is often read in order to detect sandboxing environments.
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Obfuscated Files or Information: Command Obfuscation
Adversaries may obfuscate content during command execution to impede detection.
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Event Triggered Execution
1Netsh Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Event Triggered Execution
1Netsh Helper DLL
1Defense Evasion
Hide Artifacts
1Hidden Files and Directories
1Modify Registry
2Obfuscated Files or Information
1Command Obfuscation
1Subvert Trust Controls
1Install Root Certificate
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
4Credentials In Files
4