General
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Target
preview.exe
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Size
1.0MB
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Sample
230520-wrv4zagf3z
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MD5
4aff1159a73a3ebc70d0cc27cfd60e03
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SHA1
140875013320ef0d331d95a7013bd7ade94bc912
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SHA256
191b5829fafbcf01e5ac0a030112ecd5b9c47e1f96f8b434a3d01f7f033ba899
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SHA512
dc4bb23a5866ad42b6e3f929e999b23074b6f09c6a8912416ff2af8b9defe3286339a5fd37dab9946f785ca214c60b6db04fe3739331f7e90116442207414786
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SSDEEP
24576:PyF64QvqQkzqwJLQfp/ff0DgiHi7mgTYLNLTn:ag4ykzqDdLPTYLx
Static task
static1
Behavioral task
behavioral1
Sample
preview.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
preview.exe
Resource
win10v2004-20230220-en
Malware Config
Extracted
redline
maxa
77.91.124.251:19065
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auth_value
3c06ec6b3eea9db7536a57bcc13f5bef
Targets
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Target
preview.exe
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Size
1.0MB
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MD5
4aff1159a73a3ebc70d0cc27cfd60e03
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SHA1
140875013320ef0d331d95a7013bd7ade94bc912
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SHA256
191b5829fafbcf01e5ac0a030112ecd5b9c47e1f96f8b434a3d01f7f033ba899
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SHA512
dc4bb23a5866ad42b6e3f929e999b23074b6f09c6a8912416ff2af8b9defe3286339a5fd37dab9946f785ca214c60b6db04fe3739331f7e90116442207414786
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SSDEEP
24576:PyF64QvqQkzqwJLQfp/ff0DgiHi7mgTYLNLTn:ag4ykzqDdLPTYLx
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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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