2024-05-02_0126d01b6c7544f568d05d493c01e371_ryuk

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General

Target

2024-05-02_0126d01b6c7544f568d05d493c01e371_ryuk
Size

17.6MB
MD5

0126d01b6c7544f568d05d493c01e371
SHA1

c0ba3726a3466e4aec9ab574ca8c368e23666aa8
SHA256

b96495d43285dd6f307c4fead25cfa728d3b8f36b9527a44d1b67b47a253a10f
SHA512

68b9ff6423554baa07845d7f491c80b0fb929db0f800cbda53a0596d088f18f48d7e3d85c75219717bf3c15389d2077231483c0defb836dff85cf8e3ca32c623
SSDEEP

393216:s2bnSY/5zdC927fbIBz80Zt0fbHTicmZhpSnOafiIO9zBQnfBvRQhli:9SY/F724bTicm1LafzOApvyq

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-05-02_0126d01b6c7544f568d05d493c01e371_ryuk

Files

2024-05-02_0126d01b6c7544f568d05d493c01e371_ryuk
.exe windows:6 windows x64 arch:x64

308b335dd32e7c79a897bddcc5d02f10

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

PDB Paths

P:\KBCN29WW_SRC\Phoenix\Modules\Tool\LenovoBiosUpdateToolShellBuilder\LenovoBiosUpdateToolShell\LenovoBiosUpdateToolShell\x64\Release\BiosUpdateTool.pdb

Imports

kernel32

CreateMutexA
WaitForSingleObject
LocalAlloc
SetCurrentDirectoryA
GetTempPathA
CopyFileA
GetLastError
FindClose
LockResource
LoadResource
LocalFree
GetExitCodeProcess
WriteConsoleW
FlushFileBuffers
FindResourceA
FindNextFileA
GetCurrentProcess
FindFirstFileA
SizeofResource
GetModuleFileNameA
CreateDirectoryA
SystemTimeToFileTime
CloseHandle
CreateFileA
GetFileAttributesA
LocalFileTimeToFileTime
GetCurrentDirectoryA
SetFilePointer
SetFileTime
WriteFile
GetCurrentThread
ReadFile
SetFilePointerEx
GetConsoleMode
GetConsoleCP
HeapReAlloc
HeapSize
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TerminateProcess
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
GetStartupInfoW
GetModuleHandleW
RtlPcToFileHeader
EncodePointer
RaiseException
RtlUnwindEx
SetLastError
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
FreeLibrary
GetProcAddress
LoadLibraryExW
GetStdHandle
MultiByteToWideChar
WideCharToMultiByte
ExitProcess
GetModuleHandleExW
GetACP
HeapFree
HeapAlloc
GetFileType
FindFirstFileExA
IsValidCodePage
GetOEMCP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetEnvironmentStringsW
FreeEnvironmentStringsW
LCMapStringW
SetStdHandle
GetStringTypeW
GetProcessHeap
CreateFileW

user32

wsprintfA

advapi32

RegCloseKey
AccessCheck
SetSecurityDescriptorOwner
RegQueryValueExA
AllocateAndInitializeSid
IsValidSecurityDescriptor
OpenProcessToken
FreeSid
InitializeSecurityDescriptor
RegOpenKeyExA
InitializeAcl
DuplicateToken
GetLengthSid
AddAccessAllowedAce
OpenThreadToken
SetSecurityDescriptorGroup
SetSecurityDescriptorDacl

shell32

ShellExecuteExA

ole32

CoCreateGuid

shlwapi

PathFindExtensionA

Sections

.text
Size: 90KB - Virtual size: 90KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 50KB - Virtual size: 49KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 2KB - Virtual size: 6KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gfids
Size: 512B - Virtual size: 204B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 17.4MB - Virtual size: 17.4MB

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

308b335dd32e7c79a897bddcc5d02f10

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

kernel32

user32

advapi32

shell32

ole32

shlwapi

Sections

.text Size: 90KB - Virtual size: 90KB

.rdata Size: 50KB - Virtual size: 49KB

.data Size: 2KB - Virtual size: 6KB

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

.gfids Size: 512B - Virtual size: 204B

.rsrc Size: 17.4MB - Virtual size: 17.4MB

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

.text
Size: 90KB - Virtual size: 90KB

.rdata
Size: 50KB - Virtual size: 49KB

.data
Size: 2KB - Virtual size: 6KB

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

.gfids
Size: 512B - Virtual size: 204B

.rsrc
Size: 17.4MB - Virtual size: 17.4MB

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