General
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Target
serenb.exe
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Size
3.4MB
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Sample
211124-rt6ahachej
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MD5
177417be748814f6168171a42545f9dd
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SHA1
9c8b988e66e0fe6f9dab69b1055e4ee200531094
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SHA256
47dbb2594cd5eb7015ef08b7fb803cd5adc1a1fbe4849dc847c0940f1ccace35
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SHA512
c90eebbd4663ffe4bec089e21e4f7c1a1441e21a2f78cc190b9ce85fd048bf46901aa74273695df7b6434887284a26d4fdaaf657cb5d9c5469574158adc351c2
Static task
static1
Behavioral task
behavioral1
Sample
serenb.exe
Resource
win7-en-20211104
Malware Config
Extracted
C:\Djfk_HOW_TO_DECRYPT.txt
hive
http://hiveleakdbtnp76ulyhi52eag6c6tyc3xw7ez7iqy6wc34gd2nekazyd.onion/
http://hivecust6vhekztbqgdnkks64ucehqacge3dij3gyrrpdp57zoq3ooqd.onion/
Targets
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Target
serenb.exe
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Size
3.4MB
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MD5
177417be748814f6168171a42545f9dd
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SHA1
9c8b988e66e0fe6f9dab69b1055e4ee200531094
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SHA256
47dbb2594cd5eb7015ef08b7fb803cd5adc1a1fbe4849dc847c0940f1ccace35
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SHA512
c90eebbd4663ffe4bec089e21e4f7c1a1441e21a2f78cc190b9ce85fd048bf46901aa74273695df7b6434887284a26d4fdaaf657cb5d9c5469574158adc351c2
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Modifies security service
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Clears Windows event logs
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Modifies boot configuration data using bcdedit
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Modifies extensions of user files
Ransomware generally changes the extension on encrypted files.
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