General
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Target
CCleaner 6.00.9727 (x64) Professional Edition Multilingual.zip
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Size
46.5MB
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Sample
221018-18773sdhh4
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MD5
c4f6b7208dd86c37e3e914e1355ee128
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SHA1
2d6243373836f27a2f90ede02bd1b18c5a72c970
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SHA256
e61e4307479b59fff371109891bea3b99b1a59c35cc6aae6b70eb067fac28a19
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SHA512
afe5a37f46549d727d5ab7ae9ec7e03aa9b9d533f17835ae3bdf0469434f04a9652da6a236caf61a831363b6d3e28058229151d22bb8b36114e6c3f46b00058f
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SSDEEP
786432:QW5LbUwZoT0zQjxg84E39DEzvm3FnX3QQ/93ejTn0VdKgjX50W7yaxovZ1H:Q+LM0AxxjEDm1nV980VdKm5le3vZ1H
Static task
static1
Behavioral task
behavioral1
Sample
CCleaner 6.00.9727 (x64) Professional Edition Multilingual.zip
Resource
win7-20220812-en
Malware Config
Targets
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Target
CCleaner 6.00.9727 (x64) Professional Edition Multilingual.zip
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Size
46.5MB
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MD5
c4f6b7208dd86c37e3e914e1355ee128
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SHA1
2d6243373836f27a2f90ede02bd1b18c5a72c970
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SHA256
e61e4307479b59fff371109891bea3b99b1a59c35cc6aae6b70eb067fac28a19
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SHA512
afe5a37f46549d727d5ab7ae9ec7e03aa9b9d533f17835ae3bdf0469434f04a9652da6a236caf61a831363b6d3e28058229151d22bb8b36114e6c3f46b00058f
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SSDEEP
786432:QW5LbUwZoT0zQjxg84E39DEzvm3FnX3QQ/93ejTn0VdKgjX50W7yaxovZ1H:Q+LM0AxxjEDm1nV980VdKm5le3vZ1H
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Downloads MZ/PE file
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Drops file in Drivers directory
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Executes dropped EXE
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Possible privilege escalation attempt
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Loads dropped DLL
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Modifies file permissions
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Adds Run key to start application
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Checks for any installed AV software in registry
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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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Writes to the Master Boot Record (MBR)
Bootkits write to the MBR to gain persistence at a level below the operating system.
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MITRE ATT&CK Matrix ATT&CK v6
Persistence
Registry Run Keys / Startup Folder
1Bootkit
1Hidden Files and Directories
1Defense Evasion
File Permissions Modification
1Modify Registry
3Install Root Certificate
1Hidden Files and Directories
1