2024-06-05_b141b5b8dc11db04bc509f46c4d82295_ryuk

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General

Target

2024-06-05_b141b5b8dc11db04bc509f46c4d82295_ryuk
Size

1.3MB
MD5

b141b5b8dc11db04bc509f46c4d82295
SHA1

cf667c9e17d0aa44aa0aee49b25773a6e9de5ea2
SHA256

49e30517b826c7341030b1d0ee4770975b397e1dcc1378cad3be6698271e2214
SHA512

7432054859167e385f6df84c80fba5478c8454800348e43dec4409324c952af8f3146963d6f2b298fb838e286cef871dd5890fedb5339616ee15b725502def3f
SSDEEP

24576:t0VgNc4pOOwAdjF+HvoKFLgYHJWwl24C15rDY:t0Vsprw8ZUQKKYpWwl1+NY

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-06-05_b141b5b8dc11db04bc509f46c4d82295_ryuk

Files

2024-06-05_b141b5b8dc11db04bc509f46c4d82295_ryuk
.exe windows:6 windows x64 arch:x64

9f66a1fe915f25479cb87a615f3158db

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

PDB Paths

C:\dailybuild\customertools\CustomerTools\IRMFUU\x64\Release-s\irmfuu_launcher_service.pdb

Imports

kernel32

CloseHandle
CreateEventW
WideCharToMultiByte
GetProcessHeap
DeleteCriticalSection
DecodePointer
HeapAlloc
ResetEvent
CreateThread
RaiseException
HeapReAlloc
SetEvent
GetLastError
MultiByteToWideChar
HeapSize
WaitForSingleObject
InitializeCriticalSectionEx
ReleaseSRWLockShared
AcquireSRWLockShared
SetLastError
SetErrorMode
LoadLibraryA
FreeLibrary
GetModuleFileNameA
GetProcAddress
GetSystemTimeAsFileTime
AcquireSRWLockExclusive
ReleaseSRWLockExclusive
GetCurrentThreadId
InitializeSRWLock
CreateEventA
WaitForSingleObjectEx
FormatMessageA
LocalFree
GetCurrentProcess
ReadFile
IsDebuggerPresent
FormatMessageW
GetStringTypeW
EnterCriticalSection
LeaveCriticalSection
EncodePointer
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
HeapFree
GetModuleHandleW
CompareStringW
LCMapStringW
GetLocaleInfoW
GetCPInfo
InitializeSListHead
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TerminateProcess
IsProcessorFeaturePresent
GetStartupInfoW
QueryPerformanceCounter
GetCurrentProcessId
OutputDebugStringW
WakeAllConditionVariable
SleepConditionVariableSRW
AreFileApisANSI
ReleaseSemaphore
OpenEventA
GetUserDefaultLCID
RtlPcToFileHeader
InterlockedPushEntrySList
RtlUnwindEx
LoadLibraryExW
ExitProcess
GetModuleHandleExW
GetModuleFileNameW
GetStdHandle
WriteFile
GetCommandLineA
GetCommandLineW
GetFileSizeEx
SetFilePointerEx
GetFileType
FlushFileBuffers
GetConsoleCP
GetConsoleMode
GetDateFormatW
GetTimeFormatW
IsValidLocale
EnumSystemLocalesW
GetTimeZoneInformation
FindClose
FindFirstFileExW
FindNextFileW
IsValidCodePage
GetACP
GetOEMCP
GetEnvironmentStringsW
FreeEnvironmentStringsW
SetEnvironmentVariableW
SetStdHandle
ReadConsoleW
CreateFileW
WriteConsoleW

advapi32

SetServiceStatus
RegisterServiceCtrlHandlerW
StartServiceCtrlDispatcherW
RegCloseKey
RegQueryInfoKeyW
RegOpenKeyExW
RegEnumValueW
CloseServiceHandle
OpenSCManagerW
ChangeServiceConfigW
OpenServiceW
DeregisterEventSource
ReportEventA
RegisterEventSourceW
ReportEventW

Sections

.text
Size: 538KB - Virtual size: 537KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 215KB - Virtual size: 215KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 19KB - Virtual size: 32KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 28KB - Virtual size: 28KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gfids
Size: 2KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.tls
Size: 512B - Virtual size: 9B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 1024B - Virtual size: 688B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 572KB - Virtual size: 576KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

Sharing

General

Malware Config

Signatures

Files

9f66a1fe915f25479cb87a615f3158db

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

kernel32

advapi32

Sections

.text Size: 538KB - Virtual size: 537KB

.rdata Size: 215KB - Virtual size: 215KB

.data Size: 19KB - Virtual size: 32KB

.pdata Size: 28KB - Virtual size: 28KB

.gfids Size: 2KB - Virtual size: 2KB

.tls Size: 512B - Virtual size: 9B

.rsrc Size: 1024B - Virtual size: 688B

.reloc Size: 572KB - Virtual size: 576KB

.text
Size: 538KB - Virtual size: 537KB

.rdata
Size: 215KB - Virtual size: 215KB

.data
Size: 19KB - Virtual size: 32KB

.pdata
Size: 28KB - Virtual size: 28KB

.gfids
Size: 2KB - Virtual size: 2KB

.tls
Size: 512B - Virtual size: 9B

.rsrc
Size: 1024B - Virtual size: 688B

.reloc
Size: 572KB - Virtual size: 576KB