2024-04-05_fb2db9d284fe9fd43120e9f96ceb8a8e_ryuk

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General

Target

2024-04-05_fb2db9d284fe9fd43120e9f96ceb8a8e_ryuk
Size

1.6MB
MD5

fb2db9d284fe9fd43120e9f96ceb8a8e
SHA1

e03c9aee24ba853eea28d55a7a6411cfcc2c9a43
SHA256

a24b3cdf620c8d61b26227708dbf6a9c101d8cdb787d0b2fdca7500b059292f4
SHA512

e5c1f24f11f77ac38ecf0bc85e5b12488914cc0fc6debf96a0ed6811a0b59434633910f71c766ca8c4a459172a73d9b0fe7b0550dc7de98345466bf7fabbb086
SSDEEP

24576:cPe3reAJjMTmfEw/DZJQt9kVniD9tNH+2AcoX/By/P0e0ZRCGvn7gsIjN2:cnqMyfE8dJQYiD9RATX/UPuRf8p

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-04-05_fb2db9d284fe9fd43120e9f96ceb8a8e_ryuk

Files

2024-04-05_fb2db9d284fe9fd43120e9f96ceb8a8e_ryuk
.exe windows:5 windows x64 arch:x64

c9cd006145698ba8d97db325842a29c9

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

identity_helper.exe.pdb

Imports

msedge_elf

GetInstallDetailsPayload
SignalInitializeCrashReporting

advapi32

EventRegister
EventUnregister
EventWrite
RegCloseKey
RegGetValueW
RegOpenKeyExW
RegQueryValueExW
SystemFunction036

kernel32

AcquireSRWLockExclusive
CloseHandle
CompareStringW
CreateEventW
CreateFileMappingW
CreateFileW
CreateThread
DeleteCriticalSection
DuplicateHandle
EncodePointer
EnterCriticalSection
EnumSystemLocalesW
ExitProcess
ExitThread
ExpandEnvironmentStringsW
FindClose
FindFirstFileExW
FindNextFileW
FlsAlloc
FlsSetValue
FlushFileBuffers
FormatMessageA
FreeEnvironmentStringsW
FreeLibrary
FreeLibraryAndExitThread
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetConsoleMode
GetConsoleOutputCP
GetCurrentDirectoryW
GetCurrentProcess
GetCurrentProcessId
GetCurrentThread
GetCurrentThreadId
GetDateFormatW
GetDriveTypeW
GetEnvironmentStringsW
GetFileAttributesW
GetFileSizeEx
GetFileType
GetFullPathNameW
GetLastError
GetLocalTime
GetLocaleInfoW
GetModuleFileNameW
GetModuleHandleA
GetModuleHandleExW
GetModuleHandleW
GetNativeSystemInfo
GetOEMCP
GetProcAddress
GetProcessHeap
GetProductInfo
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemDirectoryW
GetSystemInfo
GetSystemTimeAsFileTime
GetTempPathW
GetThreadId
GetThreadPriority
GetTimeFormatW
GetTimeZoneInformation
GetUserDefaultLCID
GetVersionExW
GetWindowsDirectoryW
InitOnceExecuteOnce
InitializeCriticalSectionAndSpinCount
InitializeSListHead
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
IsValidLocale
IsWow64Process
LCMapStringW
LeaveCriticalSection
LoadLibraryExA
LoadLibraryExW
LocalFree
MapViewOfFile
MultiByteToWideChar
PostQueuedCompletionStatus
QueryPerformanceCounter
QueryPerformanceFrequency
QueryThreadCycleTime
RaiseException
ReadConsoleW
ReadFile
ReleaseSRWLockExclusive
ResetEvent
RtlCaptureContext
RtlCaptureStackBackTrace
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwind
RtlUnwindEx
RtlVirtualUnwind
SetCurrentDirectoryW
SetEnvironmentVariableW
SetEvent
SetFilePointerEx
SetLastError
SetProcessShutdownParameters
SetStdHandle
SetThreadPriority
SetUnhandledExceptionFilter
Sleep
SleepConditionVariableSRW
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
TryAcquireSRWLockExclusive
UnhandledExceptionFilter
UnmapViewOfFile
UnregisterWaitEx
VerSetConditionMask
VerifyVersionInfoW
VirtualAlloc
VirtualFree
VirtualProtect
VirtualQuery
WaitForSingleObject
WaitForSingleObjectEx
WakeAllConditionVariable
WakeConditionVariable
WideCharToMultiByte
WriteConsoleW
WriteFile

shell32

CommandLineToArgvW
SHGetFolderPathW
SHGetKnownFolderPath

ole32

CoCreateInstance
CoInitializeEx
CoRegisterInitializeSpy
CoRevokeInitializeSpy
CoTaskMemFree
CoUninitialize

winmm

timeGetTime

oleaut32

SysAllocString
SysAllocStringLen
SysFreeString
VariantClear

user32

PostMessageW

Exports

Exports

GetHandleVerifier

Sections

.text
Size: 865KB - Virtual size: 864KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 146KB - Virtual size: 146KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 13KB - Virtual size: 44KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 29KB - Virtual size: 28KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.00cfg
Size: 512B - Virtual size: 40B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.tls
Size: 512B - Virtual size: 289B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

_RDATA
Size: 512B - Virtual size: 244B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 1KB - Virtual size: 1KB

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

c9cd006145698ba8d97db325842a29c9

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

msedge_elf

advapi32

kernel32

shell32

ole32

winmm

oleaut32

user32

Exports

Exports

Sections

.text Size: 865KB - Virtual size: 864KB

.rdata Size: 146KB - Virtual size: 146KB

.data Size: 13KB - Virtual size: 44KB

.pdata Size: 29KB - Virtual size: 28KB

.00cfg Size: 512B - Virtual size: 40B

.tls Size: 512B - Virtual size: 289B

_RDATA Size: 512B - Virtual size: 244B

.rsrc Size: 1KB - Virtual size: 1KB

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

.text
Size: 865KB - Virtual size: 864KB

.rdata
Size: 146KB - Virtual size: 146KB

.data
Size: 13KB - Virtual size: 44KB

.pdata
Size: 29KB - Virtual size: 28KB

.00cfg
Size: 512B - Virtual size: 40B

.tls
Size: 512B - Virtual size: 289B

_RDATA
Size: 512B - Virtual size: 244B

.rsrc
Size: 1KB - Virtual size: 1KB

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