General
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Target
79f3b7643e9464f756b610e189240620e57da93528a8c86baaf0b0b384b9ee8dN.exe
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Size
3.7MB
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Sample
241202-k3armatrem
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MD5
5b0b89b3d6c715082f3808a6a062c090
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SHA1
903e066eab09a8c80a96468a4f849d66e298afd4
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SHA256
79f3b7643e9464f756b610e189240620e57da93528a8c86baaf0b0b384b9ee8d
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SHA512
6deda3d7ffc3277afca6f3661ffcbabb7f14cf7eb51fa448a6f138922eb5ffda2ef34a67591498e5a298b8195755136007dac4887c63a041b97a8a62ae5f1cc4
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SSDEEP
98304:IU3ATeKnEUf715s8yZTtRX52qsBV6hVtHMFgOQXRUcbF8m:TATeGh15s8yZtRp2dyVhAQXRH7
Static task
static1
Malware Config
Extracted
amadey
4.42
9c9aa5
http://185.215.113.43
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install_dir
abc3bc1985
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install_file
skotes.exe
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strings_key
8a35cf2ea38c2817dba29a4b5b25dcf0
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url_paths
/Zu7JuNko/index.php
Extracted
lumma
https://powerful-avoids.sbs
https://motion-treesz.sbs
https://disobey-curly.sbs
https://leg-sate-boat.sbs
https://story-tense-faz.sbs
https://blade-govern.sbs
https://occupy-blushi.sbs
https://frogs-severz.sbs
https://property-imper.sbs
Extracted
stealc
drum
http://185.215.113.206
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url_path
/c4becf79229cb002.php
Targets
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Target
79f3b7643e9464f756b610e189240620e57da93528a8c86baaf0b0b384b9ee8dN.exe
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Size
3.7MB
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MD5
5b0b89b3d6c715082f3808a6a062c090
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SHA1
903e066eab09a8c80a96468a4f849d66e298afd4
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SHA256
79f3b7643e9464f756b610e189240620e57da93528a8c86baaf0b0b384b9ee8d
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SHA512
6deda3d7ffc3277afca6f3661ffcbabb7f14cf7eb51fa448a6f138922eb5ffda2ef34a67591498e5a298b8195755136007dac4887c63a041b97a8a62ae5f1cc4
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SSDEEP
98304:IU3ATeKnEUf715s8yZTtRX52qsBV6hVtHMFgOQXRUcbF8m:TATeGh15s8yZtRp2dyVhAQXRH7
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Amadey family
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Lumma family
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Stealc family
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Enumerates VirtualBox registry keys
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Identifies VirtualBox via ACPI registry values (likely anti-VM)
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Downloads MZ/PE file
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Uses browser remote debugging
Can be used control the browser and steal sensitive information such as credentials and session cookies.
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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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Identifies Wine through registry keys
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
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Loads dropped DLL
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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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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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AutoIT Executable
AutoIT scripts compiled to PE executables.
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Suspicious use of NtSetInformationThreadHideFromDebugger
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Modify Authentication Process
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Defense Evasion
Impair Defenses
2Disable or Modify Tools
2Modify Authentication Process
1Modify Registry
3Virtualization/Sandbox Evasion
3Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Modify Authentication Process
1Steal Web Session Cookie
1Unsecured Credentials
4Credentials In Files
4