General
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Target
TNCYV_file.exe
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Size
4.2MB
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Sample
241125-a6lm7avlal
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MD5
b6837fd430b7f458f1e85ea7435676b4
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SHA1
d9b74ad79cb44763645fdcafc61c9aa943d9d101
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SHA256
e2e6381ae3a4197bd898e6427c1a3f435803f7199cced59ff6ad2d37917c6391
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SHA512
e8abf1ea7661382f378067658114cbcbc0d19a10a8944899665969ec5a3a8226c19d5b25dd0ad58886b39a72bce175f51def7878315fa76282001a576c809eee
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SSDEEP
98304:DV+VzLLiwandw/uQgqR2wVs2hJ/6gTwrirFwwtUCyCWm7VhdwLa:p+1BahqUMs2hTTUCyCWObdwLa
Static task
static1
Behavioral task
behavioral1
Sample
TNCYV_file.exe
Resource
win7-20240903-en
Malware Config
Targets
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Target
TNCYV_file.exe
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Size
4.2MB
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MD5
b6837fd430b7f458f1e85ea7435676b4
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SHA1
d9b74ad79cb44763645fdcafc61c9aa943d9d101
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SHA256
e2e6381ae3a4197bd898e6427c1a3f435803f7199cced59ff6ad2d37917c6391
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SHA512
e8abf1ea7661382f378067658114cbcbc0d19a10a8944899665969ec5a3a8226c19d5b25dd0ad58886b39a72bce175f51def7878315fa76282001a576c809eee
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SSDEEP
98304:DV+VzLLiwandw/uQgqR2wVs2hJ/6gTwrirFwwtUCyCWm7VhdwLa:p+1BahqUMs2hTTUCyCWObdwLa
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Cryptbot family
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Identifies VirtualBox via ACPI registry values (likely anti-VM)
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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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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
Persistence
Modify Authentication Process
1Scheduled Task/Job
1Scheduled Task
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Modify Authentication Process
1Steal Web Session Cookie
1Unsecured Credentials
1Credentials In Files
1