Static task
static1
Behavioral task
behavioral1
Sample
2024-05-08_319932acdfa88b9d39ba38053573e91e_ryuk.exe
Resource
win7-20231129-en
General
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Target
2024-05-08_319932acdfa88b9d39ba38053573e91e_ryuk
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Size
1.4MB
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MD5
319932acdfa88b9d39ba38053573e91e
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SHA1
1e99a1538474869c87de63ca02dba1becb3fdfde
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SHA256
e09d28db45c2267173ed54bb62b237317a8e76c01fcaa1835a960b8f7a5d5a62
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SHA512
a71d270c85981430a9637f0ccc9ef3659cb41a6e9b38341978043534c9ddbe94dc1e2cf2b6d88145247edd5317c16849079793e38b564716c95fa61a7f918002
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SSDEEP
24576:Jm1QDQPAu/VRu58dzm7Iv+/G5dAflq3OUfxA/BEoGucPdkToQCdL0:Jm1QcAAtz+I2O5dAt+rowGTBS
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-05-08_319932acdfa88b9d39ba38053573e91e_ryuk
Files
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2024-05-08_319932acdfa88b9d39ba38053573e91e_ryuk.exe windows:6 windows x64 arch:x64
5252603393e17c6daba3fab19a2bf814
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
Imports
kernel32
EnterCriticalSection
LeaveCriticalSection
InitializeCriticalSection
GetLastError
TryEnterCriticalSection
CreateActCtxA
ActivateActCtx
DeactivateActCtx
CreateThread
SuspendThread
OpenThread
GetModuleHandleA
CreateNamedPipeA
ExitProcess
VirtualAlloc
SetNamedPipeHandleState
GetSystemTime
DeleteCriticalSection
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
IsDebuggerPresent
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetCurrentProcess
TerminateProcess
IsProcessorFeaturePresent
HeapAlloc
HeapFree
GetModuleHandleW
GetProcAddress
SetLastError
InitializeCriticalSectionAndSpinCount
TlsGetValue
TlsSetValue
FreeLibrary
LoadLibraryExW
LCMapStringW
MultiByteToWideChar
WideCharToMultiByte
GetACP
GetStringTypeW
RaiseException
FlushFileBuffers
WriteFile
GetConsoleCP
GetConsoleMode
SetStdHandle
GetCPInfo
IsValidCodePage
GetOEMCP
GetModuleHandleExW
CloseHandle
SetFilePointerEx
WriteConsoleW
ReadFile
ReadConsoleW
CreateFileW
RtlUnwindEx
Sections
.text Size: 80KB - Virtual size: 80KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rotext Size: 18KB - Virtual size: 17KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 755KB - Virtual size: 754KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 600KB - Virtual size: 603KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 3KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.gfids Size: 512B - Virtual size: 32B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rodata Size: 512B - Virtual size: 88B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 12KB - Virtual size: 11KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ