2024-04-05_1e9558fd8fef1633318acc1d9537f91f_ryuk

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General

Target

2024-04-05_1e9558fd8fef1633318acc1d9537f91f_ryuk
Size

1.1MB
MD5

1e9558fd8fef1633318acc1d9537f91f
SHA1

4b0c9d1f185e4e59db8a2b138c4e548b3f77cb4c
SHA256

cdff8695cf30e71556647ad412565c52e5b17cc5264b5fe7ef961765fed25802
SHA512

735df91e728b7daffabaa2e060e73009b9be39f7027664cac2fd200656b47005bad7ac9114edf4688c2f0515ed6462e40bb4b479d3483884f42c0bbdf6778349
SSDEEP

24576:FUkbPsSp0vsnRXalLmt1Qzc+u063/gZpHH:G1Sp0S2St+zc+T6Pg3H

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-04-05_1e9558fd8fef1633318acc1d9537f91f_ryuk

Files

2024-04-05_1e9558fd8fef1633318acc1d9537f91f_ryuk
.exe windows:6 windows x64 arch:x64

9b587d8a7b9a60c05d446bccfb3a2bcd

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

advapi32

CryptAcquireContextW
CryptGenRandom
CryptReleaseContext
RegGetValueA

kernel32

CloseHandle
CompareStringW
CreateFileA
CreateFileW
DecodePointer
DeleteCriticalSection
DeviceIoControl
EncodePointer
EnterCriticalSection
EnumSystemLocalesW
ExitProcess
FindClose
FindFirstFileExW
FindNextFileW
FlsAlloc
FlsFree
FlsGetValue
FlsSetValue
FlushFileBuffers
FreeEnvironmentStringsW
FreeLibrary
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetConsoleMode
GetConsoleOutputCP
GetCurrentProcess
GetCurrentProcessId
GetCurrentThreadId
GetEnvironmentStringsW
GetFileSizeEx
GetFileType
GetLastError
GetLocaleInfoW
GetModuleFileNameW
GetModuleHandleExW
GetModuleHandleW
GetOEMCP
GetProcAddress
GetProcessHeap
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemTimeAsFileTime
GetUserDefaultLCID
HeapAlloc
HeapFree
HeapReAlloc
HeapSize
InitializeCriticalSection
InitializeCriticalSectionAndSpinCount
InitializeCriticalSectionEx
InitializeSListHead
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
IsValidLocale
LCMapStringEx
LCMapStringW
LeaveCriticalSection
LoadLibraryExW
MultiByteToWideChar
QueryPerformanceCounter
QueryPerformanceFrequency
RaiseException
ReadConsoleW
ReadFile
RtlCaptureContext
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwind
RtlUnwindEx
RtlVirtualUnwind
SetEndOfFile
SetEnvironmentVariableW
SetFilePointerEx
SetLastError
SetStdHandle
SetUnhandledExceptionFilter
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
UnhandledExceptionFilter
WideCharToMultiByte
WriteConsoleW
WriteFile

ws2_32

WSAGetLastError
closesocket
getsockopt
recv
recvfrom
send
sendto
setsockopt

Sections

.text
Size: 811KB - Virtual size: 811KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 162KB - Virtual size: 162KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 7KB - Virtual size: 40KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 20KB - Virtual size: 20KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.00cfg
Size: 512B - Virtual size: 56B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gxfg
Size: 9KB - Virtual size: 9KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.retplne
Size: 512B - Virtual size: 140B

_RDATA
Size: 512B - Virtual size: 500B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

ahf0
Size: 148KB - Virtual size: 147KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.reloc
Size: 6KB - Virtual size: 5KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 512B - Virtual size: 422B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

9b587d8a7b9a60c05d446bccfb3a2bcd

Headers

DLL Characteristics

File Characteristics

Imports

advapi32

kernel32

ws2_32

Sections

.text Size: 811KB - Virtual size: 811KB

.rdata Size: 162KB - Virtual size: 162KB

.data Size: 7KB - Virtual size: 40KB

.pdata Size: 20KB - Virtual size: 20KB

.00cfg Size: 512B - Virtual size: 56B

.gxfg Size: 9KB - Virtual size: 9KB

.retplne Size: 512B - Virtual size: 140B

_RDATA Size: 512B - Virtual size: 500B

ahf0 Size: 148KB - Virtual size: 147KB

.reloc Size: 6KB - Virtual size: 5KB

.rsrc Size: 512B - Virtual size: 422B

.text
Size: 811KB - Virtual size: 811KB

.rdata
Size: 162KB - Virtual size: 162KB

.data
Size: 7KB - Virtual size: 40KB

.pdata
Size: 20KB - Virtual size: 20KB

.00cfg
Size: 512B - Virtual size: 56B

.gxfg
Size: 9KB - Virtual size: 9KB

.retplne
Size: 512B - Virtual size: 140B

_RDATA
Size: 512B - Virtual size: 500B

ahf0
Size: 148KB - Virtual size: 147KB

.reloc
Size: 6KB - Virtual size: 5KB

.rsrc
Size: 512B - Virtual size: 422B