General
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Target
Doc20230126.bin.zip
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Size
110KB
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Sample
230126-w3mxqsgb3s
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MD5
2f7a4783691d82821d0049d486676fdd
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SHA1
1abf4c0e13a934dae942a8b0c06887299ab263bc
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SHA256
ab77697c50f92371f998ef36a853fa791b188f56722c0aa64bcf39f9d9808b5a
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SHA512
71949c0dc62850d3ccdcb36d185e4e6bd87cee0f4d982b1857cf8c9e4f54459455f3163084237d70d4feb90cf61af70b8f16e02813d8998b095c69683e05642d
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SSDEEP
3072:e2WgxFbwQB0aH1SbZ4x1F9dGsJbZ//s/zl8lY5O21OjJVEj:enKKQB09bZ49dGsJbZ//sLlWpD6
Static task
static1
Behavioral task
behavioral1
Sample
Doc20230126.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
Doc20230126.exe
Resource
win10v2004-20220901-en
Malware Config
Targets
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Target
Doc20230126.bin
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Size
477KB
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MD5
447f1d5a645314beb0b1d6b0f2f5119f
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SHA1
23ee744fa24aaada6ab0a81166c2f5466d29d502
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SHA256
850f818aca36188fff35a492275cd63ba81f6e48263faa669fb5e192165f2f92
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SHA512
2a4ed5f9a933ef0330c81672c17623143ee0c3693d6c56c85632c0bac2b7a8fb049bae0af904a1bd2a16db8ac338d78d0928e0edc7f5d866170d25c19407e752
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SSDEEP
3072:N36LY3qIwBzFyIR+DSbhsR2OsHas+8yqB1LuiCx8V8rIiJzQvstptE8z0N:N36hWsHtlLv8EiFES0
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Detect PureCrypter injector
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PureCrypter
PureCrypter is a .NET malware loader first seen in early 2021.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Accesses Microsoft Outlook profiles
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Adds Run key to start application
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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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Suspicious use of SetThreadContext
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