2024-04-09_87c4e5b74e2790ce325e7f8302038125_ryuk

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General

Target

2024-04-09_87c4e5b74e2790ce325e7f8302038125_ryuk
Size

1.1MB
MD5

87c4e5b74e2790ce325e7f8302038125
SHA1

b3964c18871bddab578c646bdb9814d6068d3d5a
SHA256

097fd0f7cd78398c1fd934d318910ae1505a0971608dcebabf9aaeb81511c932
SHA512

49a329c38c6e0475ad3bc0701f894e217c5e33f23929de17453fc259dff1c23862e9695aade3b151c50294e9b2fef94b2c2b4408812974fb7021fe3211a5450c
SSDEEP

24576:3T2X9R7gmVRkGB9H8XEWjn40C4F4lbilS5H3:DE9R7gmVRkGB9H5Qug4lbilO

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-04-09_87c4e5b74e2790ce325e7f8302038125_ryuk

Files

2024-04-09_87c4e5b74e2790ce325e7f8302038125_ryuk
.exe windows:5 windows x64 arch:x64

073df254d91fa5ec9bc0661422333e11

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

C:\b\c\b\win_x64_archive\src\out\Release_x64\initialexe\chrome.exe.pdb

Imports

chrome_elf

SignalChromeElf

advapi32

ImpersonateNamedPipeClient
GetUserNameW
RegCloseKey
RegCreateKeyExW
RegDeleteValueW
RegEnumKeyExW
RegOpenKeyExW
RegQueryInfoKeyW
RegQueryValueExW
RegSetValueExW
SystemFunction036
OpenProcessToken
GetAce
GetKernelObjectSecurity
GetLengthSid
GetSecurityDescriptorSacl
SetKernelObjectSecurity
SetTokenInformation
SetSecurityInfo
ConvertStringSidToSidW
ConvertStringSecurityDescriptorToSecurityDescriptorW
RevertToSelf
RegDisablePredefinedCache
CopySid
CreateWellKnownSid
CreateRestrictedToken
DuplicateToken
DuplicateTokenEx
EqualSid
GetTokenInformation
LookupPrivilegeValueW
CreateProcessAsUserW
SetThreadToken
ConvertSidToStringSidW
SetEntriesInAclW
GetSecurityInfo

kernel32

GetCurrentThreadId
DuplicateHandle
WaitForSingleObject
GetCurrentProcess
GetProcessId
SetCurrentDirectoryW
SetProcessShutdownParameters
LoadLibraryExW
VirtualAlloc
VirtualFree
GetModuleHandleW
MultiByteToWideChar
WideCharToMultiByte
HeapAlloc
HeapReAlloc
HeapFree
GetComputerNameExW
LocalFree
ExitProcess
GetCurrentDirectoryW
CreateFileW
DeleteFileW
WriteFile
OutputDebugStringA
CloseHandle
GetCurrentProcessId
GetTickCount
GetModuleFileNameW
FormatMessageA
QueryPerformanceCounter
QueryPerformanceFrequency
Sleep
GetCurrentThread
SetThreadPriority
GetThreadPriority
GetSystemTimeAsFileTime
SystemTimeToTzSpecificLocalTime
FileTimeToSystemTime
GetCommandLineW
ExpandEnvironmentStringsW
GetVersionExW
GetNativeSystemInfo
TerminateProcess
GetExitCodeProcess
OpenProcess
FlushFileBuffers
GetFileInformationByHandle
GetFileSizeEx
ReadFile
SetEndOfFile
SetFilePointerEx
CreateFileMappingW
MapViewOfFile
UnmapViewOfFile
IsDebuggerPresent
RaiseException
CreateThread
VirtualQuery
RtlCaptureStackBackTrace
SetUnhandledExceptionFilter
ReleaseSRWLockExclusive
AcquireSRWLockExclusive
CreateDirectoryW
GetFileAttributesW
GetLongPathNameW
QueryDosDeviceW
CreateEventW
UnregisterWaitEx
RegisterWaitForSingleObject
GetUserDefaultLangID
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
GetThreadId
GetModuleHandleExW
CreateIoCompletionPort
GetQueuedCompletionStatus
PostQueuedCompletionStatus
SetEvent
SetInformationJobObject
SetLastError
FindClose
FindFirstFileExW
FindNextFileW
LoadResource
LockResource
SizeofResource
FindResourceW
ResetEvent
GetProcessTimes
GetSystemInfo
VirtualQueryEx
GetEnvironmentVariableW
SetEnvironmentVariableW
OutputDebugStringW
CompareStringW
DecodePointer
InitializeCriticalSectionAndSpinCount
DeleteCriticalSection
RtlAddFunctionTable
RtlDeleteFunctionTable
CreateRemoteThread
VirtualProtect
GetWindowsDirectoryW
LockFileEx
UnlockFileEx
GetStdHandle
GetFileType
SetHandleInformation
SleepEx
CreateProcessW
GetVersion
VirtualAllocEx
VirtualProtectEx
WriteProcessMemory
InitializeCriticalSection
ReadProcessMemory
SetNamedPipeHandleState
TransactNamedPipe
WaitNamedPipeW
HeapSetInformation
EnterCriticalSection
LeaveCriticalSection
TerminateJobObject
GetUserDefaultLCID
GetThreadContext
AssignProcessToJobObject
FreeLibrary
ProcessIdToSessionId
GetProcessHandleCount
SignalObjectAndWait
CreateMutexW
VirtualFreeEx
CreateJobObjectW
CreateNamedPipeW
DebugBreak
lstrlenW
SearchPathW
SuspendThread
ResumeThread
Wow64GetThreadContext
GetThreadLocale
GetSystemDefaultLCID
ReleaseSemaphore
CreateSemaphoreW
LoadLibraryExA
DisconnectNamedPipe
ConnectNamedPipe
GetUserDefaultUILanguage
SetEnvironmentVariableA
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetOEMCP
IsValidCodePage
HeapSize
GetTimeZoneInformation
WriteConsoleW
EnumSystemLocalesW
IsValidLocale
ReadConsoleW
GetACP
SetStdHandle
GetFullPathNameW
GetConsoleMode
GetConsoleCP
PeekNamedPipe
GetDriveTypeW
GetProcessHeap
RtlPcToFileHeader
RtlUnwindEx
InitializeSListHead
GetStartupInfoW
IsProcessorFeaturePresent
UnhandledExceptionFilter
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
GetCPInfo
GetLocaleInfoW
LCMapStringW
EncodePointer
GetStringTypeW
GetLastError
GetProcAddress
GetModuleHandleA
GetCommandLineA
LoadLibraryW
GetTempPathW
GetSystemDirectoryW

shell32

SHGetKnownFolderPath
SHGetFolderPathW
SHGetSpecialFolderPathW
CommandLineToArgvW

user32

FindWindowExW
GetUserObjectInformationW
GetProcessWindowStation
SetProcessWindowStation
CreateWindowStationW
GetThreadDesktop
CreateDesktopW
CloseWindowStation
CloseDesktop
GetWindowThreadProcessId
AllowSetForegroundWindow
IsWindow
SendMessageTimeoutW

version

GetFileVersionInfoSizeW
VerQueryValueW
GetFileVersionInfoW

winmm

timeGetTime

wtsapi32

WTSFreeMemory
WTSQuerySessionInformationW

rpcrt4

UuidCreate

winhttp

WinHttpAddRequestHeaders
WinHttpSetTimeouts
WinHttpReadData
WinHttpConnect
WinHttpCloseHandle
WinHttpOpenRequest
WinHttpSendRequest
WinHttpQueryHeaders
WinHttpReceiveResponse
WinHttpCrackUrl
WinHttpOpen

Exports

Exports

ClearCrashKeyValueImpl
CrashForException
DumpProcessWithoutCrash
GetHandleVerifier
InjectDumpForHangDebugging
InjectDumpProcessWithoutCrash
IsSandboxedProcess
RegisterNonABICompliantCodeRange
SetCrashKeyValueImpl
UnregisterNonABICompliantCodeRange

Sections

.text
Size: 730KB - Virtual size: 729KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 226KB - Virtual size: 226KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 5KB - Virtual size: 43KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 38KB - Virtual size: 38KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

CPADinfo
Size: 512B - Virtual size: 48B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.gfids
Size: 1024B - Virtual size: 764B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.tls
Size: 512B - Virtual size: 2B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

_RDATA
Size: 32KB - Virtual size: 32KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 123KB - Virtual size: 122KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

073df254d91fa5ec9bc0661422333e11

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

chrome_elf

advapi32

kernel32

shell32

user32

version

winmm

wtsapi32

rpcrt4

winhttp

Exports

Exports

Sections

.text Size: 730KB - Virtual size: 729KB

.rdata Size: 226KB - Virtual size: 226KB

.data Size: 5KB - Virtual size: 43KB

.pdata Size: 38KB - Virtual size: 38KB

CPADinfo Size: 512B - Virtual size: 48B

.gfids Size: 1024B - Virtual size: 764B

.tls Size: 512B - Virtual size: 2B

_RDATA Size: 32KB - Virtual size: 32KB

.rsrc Size: 123KB - Virtual size: 122KB

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

.text
Size: 730KB - Virtual size: 729KB

.rdata
Size: 226KB - Virtual size: 226KB

.data
Size: 5KB - Virtual size: 43KB

.pdata
Size: 38KB - Virtual size: 38KB

CPADinfo
Size: 512B - Virtual size: 48B

.gfids
Size: 1024B - Virtual size: 764B

.tls
Size: 512B - Virtual size: 2B

_RDATA
Size: 32KB - Virtual size: 32KB

.rsrc
Size: 123KB - Virtual size: 122KB

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