2024-03-28_4c4f89f92b826f3b59579bbdc32135a1_ryuk

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General

Target

2024-03-28_4c4f89f92b826f3b59579bbdc32135a1_ryuk
Size

134KB
MD5

4c4f89f92b826f3b59579bbdc32135a1
SHA1

ac50283c01fa6dccf0e1a82ef8904cb2e6fd015b
SHA256

655b39498502efea0031e970848178e2035b18a6a6593506f8e55417257300d0
SHA512

de2a5bbbe14bef84f0d016f9738431884af810d60b117b20185946f6d90087ff8198316a159807e2198e83c0a284747ab4422a0a36e19734c2b9849f3ac5ddba
SSDEEP

3072:UQjpl1rOip1+99uhUKnZbnriaN25eiP8qsQQ3vVn+AwEi:UeplpD+9U1Z5skiPd6Tz

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-03-28_4c4f89f92b826f3b59579bbdc32135a1_ryuk

Files

2024-03-28_4c4f89f92b826f3b59579bbdc32135a1_ryuk
.exe windows:5 windows x64 arch:x64

5c8859aec3b9b99c6dacc334434c0bde

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

VirtualProtect
HeapFree
SetLastError
VirtualFree
VirtualAlloc
LoadLibraryA
GetNativeSystemInfo
HeapAlloc
GetProcAddress
GetProcessHeap
FreeLibrary
IsBadReadPtr
CreateMutexA
Sleep
GetLastError
WriteConsoleW
FlushFileBuffers
SetFilePointerEx
GetConsoleMode
GetConsoleCP
HeapSize
SetStdHandle
LCMapStringW
CompareStringW
SetEnvironmentVariableA
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetCPInfo
GetOEMCP
IsValidCodePage
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetCurrentProcess
TerminateProcess
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
GetStartupInfoW
GetModuleHandleW
RtlPcToFileHeader
EncodePointer
RaiseException
RtlUnwindEx
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
LoadLibraryExW
GetStdHandle
WriteFile
GetModuleFileNameA
MultiByteToWideChar
WideCharToMultiByte
ExitProcess
GetModuleHandleExW
GetCommandLineA
GetCommandLineW
GetACP
HeapReAlloc
GetFileType
GetStringTypeW
CloseHandle
FindClose
FindFirstFileExA
FindNextFileA
CreateFileW

ws2_32

WSACleanup
__WSAFDIsSet
select
getaddrinfo
WSAStartup
send
socket
connect
recv
freeaddrinfo
ioctlsocket
WSAGetLastError
closesocket

secur32

DecryptMessage
FreeCredentialsHandle
InitializeSecurityContextA
DeleteSecurityContext
AcquireCredentialsHandleA
EncryptMessage
QueryContextAttributesA
FreeContextBuffer

Sections

.text
Size: 80KB - Virtual size: 80KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 42KB - Virtual size: 42KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 3KB - Virtual size: 7KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 5KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gfids
Size: 512B - Virtual size: 228B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 2KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

5c8859aec3b9b99c6dacc334434c0bde

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

ws2_32

secur32

Sections

.text Size: 80KB - Virtual size: 80KB

.rdata Size: 42KB - Virtual size: 42KB

.data Size: 3KB - Virtual size: 7KB

.pdata Size: 5KB - Virtual size: 4KB

.gfids Size: 512B - Virtual size: 228B

.reloc Size: 2KB - Virtual size: 1KB

.text
Size: 80KB - Virtual size: 80KB

.rdata
Size: 42KB - Virtual size: 42KB

.data
Size: 3KB - Virtual size: 7KB

.pdata
Size: 5KB - Virtual size: 4KB

.gfids
Size: 512B - Virtual size: 228B

.reloc
Size: 2KB - Virtual size: 1KB