General
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Target
81cfbdcd567c50d28a6380910dd6cf83.exe
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Size
1.7MB
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Sample
241219-h54rdavjft
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MD5
81cfbdcd567c50d28a6380910dd6cf83
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SHA1
3fac13a3e2416853ce16ed6052ba91e4ec978c86
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SHA256
55cb3e812b8545ae08027c08bc3d8d0ffc8e6cd2854547a582ab3c4e2db88d1d
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SHA512
fd083c0ec0a95175ef05afb2c60cc1990b868d0a5db483372a294bda2955db7dbe586ab9c3633a7bbb2bfc6f478e09b2f5e04fae41393a626dbb53345fc81838
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SSDEEP
49152:vW/ovhCX0Gq//UWbO9501vl/YeUcWw30U9/hYjF:GsUOGtePWw30q6F
Static task
static1
Behavioral task
behavioral1
Sample
81cfbdcd567c50d28a6380910dd6cf83.exe
Resource
win7-20240903-en
Malware Config
Extracted
lumma
Extracted
stealc
stok
http://185.215.113.206
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url_path
/c4becf79229cb002.php
Targets
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Target
81cfbdcd567c50d28a6380910dd6cf83.exe
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Size
1.7MB
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MD5
81cfbdcd567c50d28a6380910dd6cf83
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SHA1
3fac13a3e2416853ce16ed6052ba91e4ec978c86
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SHA256
55cb3e812b8545ae08027c08bc3d8d0ffc8e6cd2854547a582ab3c4e2db88d1d
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SHA512
fd083c0ec0a95175ef05afb2c60cc1990b868d0a5db483372a294bda2955db7dbe586ab9c3633a7bbb2bfc6f478e09b2f5e04fae41393a626dbb53345fc81838
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SSDEEP
49152:vW/ovhCX0Gq//UWbO9501vl/YeUcWw30U9/hYjF:GsUOGtePWw30q6F
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Lumma family
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Stealc family
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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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Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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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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Accesses cryptocurrency files/wallets, possible credential harvesting
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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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Suspicious use of NtSetInformationThreadHideFromDebugger
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MITRE ATT&CK Enterprise v15
Defense Evasion
Impair Defenses
2Disable or Modify Tools
2Modify Registry
3Subvert Trust Controls
1Install Root Certificate
1Virtualization/Sandbox Evasion
2Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
3Credentials In Files
3