2024-01-23_aa854106061e65e5a1f2c1c624582e3a_ryuk

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General

Target

2024-01-23_aa854106061e65e5a1f2c1c624582e3a_ryuk
Size

4.0MB
MD5

aa854106061e65e5a1f2c1c624582e3a
SHA1

044c83c57eceeb8462a3f350a59327c8b6bdb4fb
SHA256

c4e16aa04c67d3ae173e0a9c070e568584b04d8e87be4ec2fd10a6cdb2cdf9b8
SHA512

c9d0430c5bf975ced0be4675af1ce12e9e16dd51097544e6478048b2609f57fb0905972c6bf2df5d21f8bc50bbe4b5d62053ff64fc09e8cff20907a352bd26cd
SSDEEP

98304:zPhLuFuaA+WovVZ/K0tMExlXaeRPE3/SM:zPhLuFuQtZ/K0tbqGP+l

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-01-23_aa854106061e65e5a1f2c1c624582e3a_ryuk

Files

2024-01-23_aa854106061e65e5a1f2c1c624582e3a_ryuk
.exe windows:5 windows x64 arch:x64

94a2caacf8c3a20d331862e2171e1b95

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_GUARD_CF
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

Imports

imm32

ImmDisableIME

advapi32

AddAce
ChangeServiceConfigW
CloseServiceHandle
CopySid
CreateProcessAsUserW
CreateServiceW
DeleteService
DuplicateToken
EventRegister
EventUnregister
EventWrite
GetAclInformation
GetLengthSid
GetSecurityDescriptorControl
GetSecurityDescriptorDacl
GetSecurityDescriptorGroup
GetSecurityDescriptorOwner
GetSecurityDescriptorSacl
GetSidLengthRequired
GetSidSubAuthority
GetTokenInformation
InitializeAcl
InitializeSecurityDescriptor
InitializeSid
IsValidSid
MakeAbsoluteSD
OpenProcessToken
OpenSCManagerW
OpenServiceW
QueryServiceConfigW
RegCloseKey
RegCreateKeyExW
RegDeleteKeyExW
RegDeleteValueW
RegEnumKeyExW
RegEnumValueW
RegOpenKeyExW
RegQueryInfoKeyW
RegQueryValueExW
RegSetValueExW
RegisterServiceCtrlHandlerW
SetSecurityDescriptorDacl
SetSecurityDescriptorGroup
SetSecurityDescriptorOwner
SetServiceStatus
StartServiceCtrlDispatcherW
SystemFunction036

oleaut32

SysAllocString
SysAllocStringByteLen
SysFreeString
SysStringByteLen
VariantClear
VariantInit

shell32

CommandLineToArgvW
SHGetFolderPathW
SHGetKnownFolderPath
ShellExecuteExW

user32

AllowSetForegroundWindow
GetActiveWindow
UnregisterClassW

winmm

timeGetTime

kernel32

AcquireSRWLockExclusive
AcquireSRWLockShared
AssignProcessToJobObject
CloseHandle
CompareStringW
CopyFileW
CreateDirectoryW
CreateEventW
CreateFileA
CreateFileMappingW
CreateFileW
CreateProcessW
CreateThread
DecodePointer
DeleteCriticalSection
DeleteFileW
DeleteProcThreadAttributeList
DeviceIoControl
DuplicateHandle
EncodePointer
EnterCriticalSection
EnumSystemLocalesW
ExitProcess
ExitThread
ExpandEnvironmentStringsW
FindClose
FindFirstFileExW
FindNextFileW
FindResourceExW
FindResourceW
FlsAlloc
FlsFree
FlsGetValue
FlsSetValue
FlushFileBuffers
FormatMessageW
FreeEnvironmentStringsW
FreeLibrary
FreeLibraryAndExitThread
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetConsoleMode
GetConsoleOutputCP
GetCurrentDirectoryW
GetCurrentProcess
GetCurrentProcessId
GetCurrentThread
GetCurrentThreadId
GetDateFormatW
GetDriveTypeW
GetEnvironmentStringsW
GetEnvironmentVariableW
GetExitCodeProcess
GetFileAttributesExW
GetFileAttributesW
GetFileSizeEx
GetFileType
GetFullPathNameW
GetLastError
GetLocalTime
GetLocaleInfoW
GetModuleFileNameW
GetModuleHandleA
GetModuleHandleExW
GetModuleHandleW
GetNativeSystemInfo
GetOEMCP
GetProcAddress
GetProcessHeap
GetProcessId
GetProductInfo
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemDirectoryW
GetSystemInfo
GetSystemTimeAsFileTime
GetTempPathW
GetThreadId
GetThreadPriority
GetTickCount
GetTimeFormatW
GetTimeZoneInformation
GetUserDefaultLCID
GetVersionExW
GetWindowsDirectoryW
HeapAlloc
HeapCreate
HeapDestroy
HeapFree
HeapReAlloc
HeapSetInformation
HeapSize
InitOnceExecuteOnce
InitializeCriticalSectionAndSpinCount
InitializeCriticalSectionEx
InitializeProcThreadAttributeList
InitializeSListHead
InitializeSRWLock
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
IsValidLocale
IsWow64Process
LCMapStringW
LeaveCriticalSection
LoadLibraryExA
LoadLibraryExW
LoadResource
LocalFree
LockResource
MapViewOfFile
MoveFileExW
MultiByteToWideChar
OpenProcess
OutputDebugStringA
OutputDebugStringW
QueryFullProcessImageNameA
QueryPerformanceCounter
QueryPerformanceFrequency
QueryThreadCycleTime
RaiseException
RaiseFailFastException
ReadConsoleW
ReadFile
ReleaseSRWLockExclusive
ReleaseSRWLockShared
RemoveDirectoryW
ResetEvent
RtlCaptureContext
RtlCaptureStackBackTrace
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwind
RtlUnwindEx
RtlVirtualUnwind
SetEndOfFile
SetEnvironmentVariableW
SetEvent
SetFileAttributesW
SetFilePointer
SetFilePointerEx
SetFileTime
SetHandleInformation
SetLastError
SetStdHandle
SetThreadPriority
SetUnhandledExceptionFilter
SizeofResource
Sleep
SleepConditionVariableSRW
SwitchToThread
SystemTimeToFileTime
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
TryAcquireSRWLockExclusive
TryEnterCriticalSection
TzSpecificLocalTimeToSystemTime
UnhandledExceptionFilter
UnmapViewOfFile
UnregisterWaitEx
UpdateProcThreadAttribute
VerSetConditionMask
VerifyVersionInfoW
VirtualAlloc
VirtualFree
VirtualProtect
VirtualQuery
WaitForSingleObject
WaitForSingleObjectEx
WakeAllConditionVariable
WakeConditionVariable
WideCharToMultiByte
WriteConsoleW
WriteFile

ole32

CLSIDFromString
CoAddRefServerProcess
CoCreateInstance
CoImpersonateClient
CoInitialize
CoInitializeEx
CoInitializeSecurity
CoRegisterClassObject
CoRegisterInitializeSpy
CoReleaseServerProcess
CoResumeClassObjects
CoRevertToSelf
CoRevokeClassObject
CoRevokeInitializeSpy
CoSetProxyBlanket
CoTaskMemFree
CoUninitialize
IIDFromString

crypt32

CertCloseStore
CertFindCertificateInStore
CertFreeCertificateContext
CertGetNameStringW
CryptMsgClose
CryptMsgGetParam
CryptProtectData
CryptQueryObject
CryptUnprotectData

rpcrt4

I_RpcOpenClientProcess

wintrust

CryptCATAdminAcquireContext
CryptCATAdminCalcHashFromFileHandle
CryptCATAdminEnumCatalogFromHash
CryptCATAdminReleaseCatalogContext
CryptCATAdminReleaseContext
CryptCATCatalogInfoFromContext
WinVerifyTrust

iphlpapi

GetAdaptersAddresses

winhttp

WinHttpAddRequestHeaders
WinHttpCloseHandle
WinHttpConnect
WinHttpOpen
WinHttpOpenRequest
WinHttpQueryDataAvailable
WinHttpReadData
WinHttpReceiveResponse
WinHttpSendRequest
WinHttpSetOption

userenv

CreateEnvironmentBlock
DestroyEnvironmentBlock

shlwapi

PathMatchSpecW

netapi32

Netbios

Exports

Exports

Cr_z_adler32
Cr_z_adler32_combine
Cr_z_adler32_z
Cr_z_compress
Cr_z_compress2
Cr_z_compressBound
Cr_z_crc32
Cr_z_crc32_combine
Cr_z_crc32_combine_gen
Cr_z_crc32_combine_op
Cr_z_crc32_z
Cr_z_deflate
Cr_z_deflateBound
Cr_z_deflateCopy
Cr_z_deflateEnd
Cr_z_deflateGetDictionary
Cr_z_deflateInit2_
Cr_z_deflateInit_
Cr_z_deflateParams
Cr_z_deflatePending
Cr_z_deflatePrime
Cr_z_deflateReset
Cr_z_deflateResetKeep
Cr_z_deflateSetDictionary
Cr_z_deflateSetHeader
Cr_z_deflateTune
Cr_z_get_crc_table
Cr_z_zError
Cr_z_zlibCompileFlags
Cr_z_zlibVersion
GetHandleVerifier

Sections

.text
Size: 3.4MB - Virtual size: 3.4MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 378KB - Virtual size: 377KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 38KB - Virtual size: 93KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 51KB - Virtual size: 50KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gxfg
Size: 12KB - Virtual size: 11KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.retplne
Size: 512B - Virtual size: 140B

.rodata
Size: 4KB - Virtual size: 4KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.tls
Size: 512B - Virtual size: 313B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.voltbl
Size: 512B - Virtual size: 70B

_RDATA
Size: 512B - Virtual size: 244B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 64KB - Virtual size: 64KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 7KB - Virtual size: 7KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

94a2caacf8c3a20d331862e2171e1b95

Headers

DLL Characteristics

File Characteristics

Imports

imm32

advapi32

oleaut32

shell32

user32

winmm

kernel32

ole32

crypt32

rpcrt4

wintrust

iphlpapi

winhttp

userenv

shlwapi

netapi32

Exports

Exports

Sections

.text Size: 3.4MB - Virtual size: 3.4MB

.rdata Size: 378KB - Virtual size: 377KB

.data Size: 38KB - Virtual size: 93KB

.pdata Size: 51KB - Virtual size: 50KB

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

.gxfg Size: 12KB - Virtual size: 11KB

.retplne Size: 512B - Virtual size: 140B

.rodata Size: 4KB - Virtual size: 4KB

.tls Size: 512B - Virtual size: 313B

.voltbl Size: 512B - Virtual size: 70B

_RDATA Size: 512B - Virtual size: 244B

.rsrc Size: 64KB - Virtual size: 64KB

.reloc Size: 7KB - Virtual size: 7KB

.text
Size: 3.4MB - Virtual size: 3.4MB

.rdata
Size: 378KB - Virtual size: 377KB

.data
Size: 38KB - Virtual size: 93KB

.pdata
Size: 51KB - Virtual size: 50KB

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

.gxfg
Size: 12KB - Virtual size: 11KB

.retplne
Size: 512B - Virtual size: 140B

.rodata
Size: 4KB - Virtual size: 4KB

.tls
Size: 512B - Virtual size: 313B

.voltbl
Size: 512B - Virtual size: 70B

_RDATA
Size: 512B - Virtual size: 244B

.rsrc
Size: 64KB - Virtual size: 64KB

.reloc
Size: 7KB - Virtual size: 7KB