2024-04-08_9cde17cbd4d48799c24ce3e5047243ae_ryuk

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General

Target

2024-04-08_9cde17cbd4d48799c24ce3e5047243ae_ryuk
Size

1.6MB
MD5

9cde17cbd4d48799c24ce3e5047243ae
SHA1

cf92d6e7c28aba620515a193dbe34d2c397fc3b9
SHA256

393c97ce72cb83c5fd0e6856e8b957cf16bf3abf654cf489b0f06c93228a867e
SHA512

458368a465b00cca931cd2f9f6221ed2566f9aca2cb15f112cc6e93d4696ae85335a26676fb7c2b05a4a8e13adc7e2eab18e6ddf666bf8bb4306f1d069dc0ec4
SSDEEP

12288:bsixPwETnuX2DXc3ajG+hjQKymY8efKCpD7Gj9G6G1qT8nQkCu83L3Wl/np9DBDR:bZFwWuGDsqjnhMgeiCl7G0nehbGZpbD

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-04-08_9cde17cbd4d48799c24ce3e5047243ae_ryuk

Files

2024-04-08_9cde17cbd4d48799c24ce3e5047243ae_ryuk
.exe windows:10 windows x64 arch:x64

1bba9348e5de4a3a0ecedee03cd7f678

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

maintenanceservice.pdb

Imports

advapi32

AdjustTokenPrivileges
ChangeServiceConfig2W
ChangeServiceConfigW
CloseServiceHandle
ControlService
CreateServiceW
CreateWellKnownSid
CryptAcquireContextA
CryptCreateHash
CryptDestroyHash
CryptGetHashParam
CryptHashData
CryptReleaseContext
DeleteService
FreeSid
GetSecurityDescriptorDacl
InitializeSecurityDescriptor
LookupPrivilegeValueA
OpenProcessToken
OpenSCManagerA
OpenSCManagerW
OpenServiceW
QueryServiceConfigW
QueryServiceObjectSecurity
QueryServiceStatus
QueryServiceStatusEx
RegCloseKey
RegEnumKeyExW
RegGetValueW
RegOpenKeyExW
RegQueryInfoKeyW
RegQueryValueExW
RegSetValueExW
RegisterServiceCtrlHandlerW
SetEntriesInAclW
SetSecurityDescriptorDacl
SetServiceObjectSecurity
SetServiceStatus
StartServiceCtrlDispatcherW

shlwapi

PathAppendW
PathCanonicalizeW
PathIsUNCServerShareW
PathQuoteSpacesW
PathRemoveFileSpecW
PathStripPathW
PathStripToRootW
PathUnquoteSpacesW

user32

LoadStringA
wsprintfW

version

GetFileVersionInfoSizeW
GetFileVersionInfoW
VerQueryValueW

rpcrt4

RpcStringFreeW
UuidCreate
UuidToStringW

shell32

SHGetKnownFolderPath

ole32

CoTaskMemFree

crypt32

CertCloseStore
CertFindCertificateInStore
CertFreeCertificateContext
CertGetNameStringA
CertGetNameStringW
CryptMsgClose
CryptMsgGetParam
CryptQueryObject

wintrust

WinVerifyTrust

kernel32

CloseHandle
CompareStringW
CopyFileW
CreateDirectoryW
CreateEventW
CreateFileW
CreateProcessW
CreateThread
CreateToolhelp32Snapshot
DeleteCriticalSection
DeleteFileW
DeviceIoControl
EnterCriticalSection
ExitProcess
FindClose
FindFirstFileExW
FindNextFileW
FlushFileBuffers
FreeEnvironmentStringsW
FreeLibrary
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetConsoleMode
GetConsoleOutputCP
GetCurrentProcess
GetCurrentProcessId
GetCurrentThreadId
GetDateFormatW
GetDriveTypeW
GetEnvironmentStringsW
GetExitCodeProcess
GetFileAttributesW
GetFileSize
GetFileSizeEx
GetFileType
GetFullPathNameW
GetLastError
GetLongPathNameW
GetModuleFileNameW
GetModuleHandleExW
GetModuleHandleW
GetOEMCP
GetProcAddress
GetProcessHeap
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemTimeAsFileTime
GetTimeFormatW
GetTimeZoneInformation
HeapAlloc
HeapFree
HeapReAlloc
HeapSize
InitializeCriticalSectionAndSpinCount
InitializeSListHead
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
LCMapStringW
LeaveCriticalSection
LoadLibraryExW
LocalAlloc
LocalFree
MoveFileExW
MultiByteToWideChar
Process32FirstW
Process32NextW
QueryPerformanceCounter
RaiseException
ReadConsoleW
ReadFile
ResetEvent
RtlCaptureContext
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwind
RtlUnwindEx
RtlVirtualUnwind
SetEndOfFile
SetEnvironmentVariableW
SetEvent
SetFilePointerEx
SetLastError
SetStdHandle
SetUnhandledExceptionFilter
Sleep
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
UnhandledExceptionFilter
WaitForSingleObject
WaitForSingleObjectEx
WideCharToMultiByte
WriteConsoleW
WriteFile
lstrcmpiW

Sections

.text
Size: 148KB - Virtual size: 148KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 58KB - Virtual size: 57KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 3KB - Virtual size: 8KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

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: 9B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.voltbl
Size: 512B - Virtual size: 42B

_RDATA
Size: 512B - Virtual size: 252B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 1.4MB - Virtual size: 1.4MB

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

1bba9348e5de4a3a0ecedee03cd7f678

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

advapi32

shlwapi

user32

version

rpcrt4

shell32

ole32

crypt32

wintrust

kernel32

Sections

.text Size: 148KB - Virtual size: 148KB

.rdata Size: 58KB - Virtual size: 57KB

.data Size: 3KB - Virtual size: 8KB

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

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

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

.voltbl Size: 512B - Virtual size: 42B

_RDATA Size: 512B - Virtual size: 252B

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

.reloc Size: 1.4MB - Virtual size: 1.4MB

.text
Size: 148KB - Virtual size: 148KB

.rdata
Size: 58KB - Virtual size: 57KB

.data
Size: 3KB - Virtual size: 8KB

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

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

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

.voltbl
Size: 512B - Virtual size: 42B

_RDATA
Size: 512B - Virtual size: 252B

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

.reloc
Size: 1.4MB - Virtual size: 1.4MB