2024-04-20_d51406c2067683343c4a3828d0fd78eb_ryuk

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General

Target

2024-04-20_d51406c2067683343c4a3828d0fd78eb_ryuk
Size

117KB
MD5

d51406c2067683343c4a3828d0fd78eb
SHA1

68281646bbb6200856a8abef85710deb4226783f
SHA256

aca2d43df17cafe8a1b144b3ed1fd420734896e774e6c4353ec78ef11b1b9e42
SHA512

427d452b2ef381eba2445345c70b9dbb404c896e382a517a7662f4aa06d1fa99302bd976281d77b4771723893fd5e3524a39e7b60fec21c90d53d3bdcd8eeedc
SSDEEP

1536:X1uo3IQJT+DaUyZLjSRwFDG5Rn1AzwYHEtwAcEoTlbsWFF1d7h9dlz1Zdg1:FuyIIT+CjSCQ5RnElHEt3qlzFv1t1jg

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-04-20_d51406c2067683343c4a3828d0fd78eb_ryuk

Files

2024-04-20_d51406c2067683343c4a3828d0fd78eb_ryuk
.exe windows:6 windows x64 arch:x64

78b0a691b542b49aae7a544ca6cc5586

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

GetProcAddress
CreateThread
ConnectNamedPipe
LoadLibraryW
CloseHandle
GetCurrentThread
GetLastError
CreateEventW
GetSystemDirectoryW
WaitForSingleObject
GetComputerNameW
CreateNamedPipeW
CreateFileW
HeapReAlloc
HeapSize
WriteConsoleW
SetFilePointerEx
GetProcessHeap
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetCurrentProcess
TerminateProcess
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
GetStartupInfoW
GetModuleHandleW
RtlUnwindEx
SetLastError
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
FreeLibrary
LoadLibraryExW
GetStdHandle
WriteFile
GetModuleFileNameW
MultiByteToWideChar
WideCharToMultiByte
ExitProcess
GetModuleHandleExW
GetCommandLineA
GetCommandLineW
GetACP
HeapFree
HeapAlloc
CompareStringW
LCMapStringW
GetFileType
FlushFileBuffers
GetConsoleCP
GetConsoleMode
GetStringTypeW
FindClose
FindFirstFileExW
FindNextFileW
IsValidCodePage
GetOEMCP
GetCPInfo
GetEnvironmentStringsW
FreeEnvironmentStringsW
SetEnvironmentVariableW
SetStdHandle
RaiseException

advapi32

SetTokenInformation
CreateProcessWithTokenW
ImpersonateNamedPipeClient
InitializeSecurityDescriptor
CreateProcessAsUserW
DuplicateTokenEx
OpenThreadToken
RevertToSelf

rpcrt4

UuidToStringW
UuidCreate
NdrClientCall2

userenv

DestroyEnvironmentBlock
CreateEnvironmentBlock

Sections

.text
Size: 65KB - Virtual size: 64KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 42KB - Virtual size: 41KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 2KB - Virtual size: 7KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 4KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gfids
Size: 512B - Virtual size: 160B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 512B - Virtual size: 480B

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

78b0a691b542b49aae7a544ca6cc5586

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

advapi32

rpcrt4

userenv

Sections

.text Size: 65KB - Virtual size: 64KB

.rdata Size: 42KB - Virtual size: 41KB

.data Size: 2KB - Virtual size: 7KB

.pdata Size: 4KB - Virtual size: 3KB

.gfids Size: 512B - Virtual size: 160B

.rsrc Size: 512B - Virtual size: 480B

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

.text
Size: 65KB - Virtual size: 64KB

.rdata
Size: 42KB - Virtual size: 41KB

.data
Size: 2KB - Virtual size: 7KB

.pdata
Size: 4KB - Virtual size: 3KB

.gfids
Size: 512B - Virtual size: 160B

.rsrc
Size: 512B - Virtual size: 480B

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