General
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Target
23f8aa94ffb3c08a62735fe7fee5799880a8f322ce1d55ec49a13a3f85312db2.sample
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Size
384KB
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Sample
210825-65sp376nnx
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MD5
5ac0f050f93f86e69026faea1fbb4450
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SHA1
9709774fde9ec740ad6fed8ed79903296ca9d571
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SHA256
23f8aa94ffb3c08a62735fe7fee5799880a8f322ce1d55ec49a13a3f85312db2
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SHA512
b554487c4e26a85ec5179cdcc1d25b5bc494e8821a8899fbbf868c3cf41f70cc72db107613b3f6655d3ab70f4db94cce2589066bb354b1ed955098d3911b844d
Static task
static1
Behavioral task
behavioral1
Sample
23f8aa94ffb3c08a62735fe7fee5799880a8f322ce1d55ec49a13a3f85312db2.sample.exe
Resource
win7v20210410
Behavioral task
behavioral2
Sample
23f8aa94ffb3c08a62735fe7fee5799880a8f322ce1d55ec49a13a3f85312db2.sample.exe
Resource
win10v20210410
Malware Config
Extracted
C:\RyukReadMe.txt
ryuk
14hVKm7Ft2rxDBFTNkkRC3kGstMGp2A4hk
Targets
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Target
23f8aa94ffb3c08a62735fe7fee5799880a8f322ce1d55ec49a13a3f85312db2.sample
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Size
384KB
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MD5
5ac0f050f93f86e69026faea1fbb4450
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SHA1
9709774fde9ec740ad6fed8ed79903296ca9d571
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SHA256
23f8aa94ffb3c08a62735fe7fee5799880a8f322ce1d55ec49a13a3f85312db2
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SHA512
b554487c4e26a85ec5179cdcc1d25b5bc494e8821a8899fbbf868c3cf41f70cc72db107613b3f6655d3ab70f4db94cce2589066bb354b1ed955098d3911b844d
Score10/10-
Executes dropped EXE
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Modifies Installed Components in the registry
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Modifies extensions of user files
Ransomware generally changes the extension on encrypted files.
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Deletes itself
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Drops startup file
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Loads dropped DLL
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Adds Run key to start application
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Drops file in System32 directory
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