General
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Target
2024-04-28_0d6f1a17bc5c87c304d2ba6ff25801e9_ryuk
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Size
38.2MB
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Sample
240428-jkjq5sbc51
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MD5
0d6f1a17bc5c87c304d2ba6ff25801e9
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SHA1
69754bff37cf31ed4912a3a58c535ee3ac69d696
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SHA256
aeb232d84afc6c6d95ea92940cee4c7707126b8204b95d6707f75a1eeec8a217
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SHA512
78b7c4f149152e5bd15907b49a3fe392ddfb5b7af0a847357ca13db264eb204a5148e2ffb2d501dc38161a2bdb80f6c586fd0d027a1638dfb71d0a13aa69235e
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SSDEEP
786432:l7YfqVD/drU8AkFI4ecXUEZBKRj06pysShPULwI6Kgvn:efmD/dA9kFnzUEXKRjFkJhUc
Static task
static1
Behavioral task
behavioral1
Sample
2024-04-28_0d6f1a17bc5c87c304d2ba6ff25801e9_ryuk.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-04-28_0d6f1a17bc5c87c304d2ba6ff25801e9_ryuk.exe
Resource
win10v2004-20240226-en
Malware Config
Targets
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Target
2024-04-28_0d6f1a17bc5c87c304d2ba6ff25801e9_ryuk
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Size
38.2MB
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MD5
0d6f1a17bc5c87c304d2ba6ff25801e9
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SHA1
69754bff37cf31ed4912a3a58c535ee3ac69d696
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SHA256
aeb232d84afc6c6d95ea92940cee4c7707126b8204b95d6707f75a1eeec8a217
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SHA512
78b7c4f149152e5bd15907b49a3fe392ddfb5b7af0a847357ca13db264eb204a5148e2ffb2d501dc38161a2bdb80f6c586fd0d027a1638dfb71d0a13aa69235e
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SSDEEP
786432:l7YfqVD/drU8AkFI4ecXUEZBKRj06pysShPULwI6Kgvn:efmD/dA9kFnzUEXKRjFkJhUc
Score8/10-
Drops file in Drivers directory
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Sets file execution options in registry
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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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Modifies system executable filetype association
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Registers COM server for autorun
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Adds Run key to start application
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Blocklisted process makes network request
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Checks for any installed AV software in registry
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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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MITRE ATT&CK Matrix ATT&CK v13
Persistence
Boot or Logon Autostart Execution
3Registry Run Keys / Startup Folder
3Event Triggered Execution
1Change Default File Association
1Privilege Escalation
Boot or Logon Autostart Execution
3Registry Run Keys / Startup Folder
3Event Triggered Execution
1Change Default File Association
1