General
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Target
encoder.dll.exe
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Size
1.0MB
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Sample
230519-n6xmcadf49
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MD5
9a642dd3ee4e9547f28956afe81584ed
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SHA1
1cfcf880cdb9b877264701c89aa7b782007b06c4
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SHA256
46d36b84f0f8eb9da5b5a3247466f416885da77349f723cfbb7fb3a8031bda14
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SHA512
78d584f648969c8ce624d3800c9d7b04f367bb38603c4e3bfc8bf2eab79315c27f3fa9152ec386156270a64dd3b69322efc2c007e77276bb5b2ff171d40a6ad2
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SSDEEP
24576:3yupIF0+zjzVrMsIHYETbaGIJTUjnvp1iJyRKZ:Cup6zjzVrMJVn73icRK
Static task
static1
Behavioral task
behavioral1
Sample
encoder.dll.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
encoder.dll.exe
Resource
win10v2004-20230220-en
Malware Config
Extracted
redline
muser
77.91.68.253:19065
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auth_value
ab307a8e027ba1296455e3d548f168a3
Targets
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Target
encoder.dll.exe
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Size
1.0MB
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MD5
9a642dd3ee4e9547f28956afe81584ed
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SHA1
1cfcf880cdb9b877264701c89aa7b782007b06c4
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SHA256
46d36b84f0f8eb9da5b5a3247466f416885da77349f723cfbb7fb3a8031bda14
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SHA512
78d584f648969c8ce624d3800c9d7b04f367bb38603c4e3bfc8bf2eab79315c27f3fa9152ec386156270a64dd3b69322efc2c007e77276bb5b2ff171d40a6ad2
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SSDEEP
24576:3yupIF0+zjzVrMsIHYETbaGIJTUjnvp1iJyRKZ:Cup6zjzVrMJVn73icRK
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RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
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RedLine payload
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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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Loads dropped DLL
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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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Suspicious use of SetThreadContext
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