General
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Target
40cb4053a584486a21a109ffb44933c9.bin
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Size
4.2MB
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Sample
241123-bh4drszmfq
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MD5
fbf856b8965c3391f06922c56a31af0d
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SHA1
88dddd361433c27686198a532e652f1a71611196
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SHA256
81ae0f04ad56741a5d9d969c8de1834dd11897edf08a52b16487af6678e6b2b4
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SHA512
779aa2b3d87f5ca9c1653693f9b1bb90bb418ee5e1963da4352dcd7c1cf86805f7b9ddf5091b34ead49d36cb394cb53280eb0b044a110918577ff71c883d635d
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SSDEEP
98304:mTbrB7GYhDK/wOu30T1XciZ+BLtu3xCXDJxrYnyKXKF:uBi86wOukxsCAbjrIbKF
Static task
static1
Behavioral task
behavioral1
Sample
71b2a45658b6d8df33fc9bacc2c938ec598db52f8a477d859632d774802c0d84.exe
Resource
win7-20240903-en
Malware Config
Targets
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Target
71b2a45658b6d8df33fc9bacc2c938ec598db52f8a477d859632d774802c0d84.exe
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Size
4.2MB
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MD5
40cb4053a584486a21a109ffb44933c9
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SHA1
07a94039a6176646ecdb0a5b0fab59b632bdbd18
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SHA256
71b2a45658b6d8df33fc9bacc2c938ec598db52f8a477d859632d774802c0d84
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SHA512
58356679459f0c4126905cb2603c21fcc77f84c338ed8f03bd9639027c1e47475a09e4d2617aff5b695caf0915c36b59570e2572b64142dd76701c8ddc0fffd3
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SSDEEP
98304:MS/IP1tXjcvurtGm5Awv025ancWoTMcmMWnV:MS/81tTcvugm/s25LWtcrU
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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