2024-06-04_bd28677ba34768686543ae134b11c939_ryuk

Sharing

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General

Target

2024-06-04_bd28677ba34768686543ae134b11c939_ryuk
Size

1.5MB
MD5

bd28677ba34768686543ae134b11c939
SHA1

282ffd89f84ab9cfdbd1ab6770204b834e62ed3e
SHA256

fb94a1691cdf4d5b4ca49e3a9bd7c492d07e5a0d4790e618736ecd00d1fc3f31
SHA512

385b555c35ddb74cbf9605465898d4d18e8f5757a53ef1088cfab66cb5d3eb5c662aace4dc51fe8c7b8d9e02e7180a55b173726306e5b7e4d89a7f7b39f3b2ed
SSDEEP

24576:9wRyJycxV/TwSfVcYG3K/cJHlnFR+IGNe8j3Iz:9FycvLNiXicJFFRGNzj3

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-06-04_bd28677ba34768686543ae134b11c939_ryuk

Files

2024-06-04_bd28677ba34768686543ae134b11c939_ryuk
.exe windows:10 windows x64 arch:x64

deac793c737c6715eac9d34cc38e44a1

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

AcquireSRWLockExclusive
CloseHandle
CompareStringW
CopyFileW
CreateDirectoryW
CreateEventW
CreateFileW
CreateProcessW
CreateThread
CreateToolhelp32Snapshot
DeleteCriticalSection
DeleteFileW
DeviceIoControl
EncodePointer
EnterCriticalSection
ExitProcess
FindClose
FindFirstFileExW
FindNextFileW
FlsAlloc
FlsFree
FlsGetValue
FlsSetValue
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
ReleaseSRWLockExclusive
RtlCaptureContext
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwind
RtlUnwindEx
RtlVirtualUnwind
SetEndOfFile
SetEnvironmentVariableW
SetEvent
SetFilePointerEx
SetLastError
SetStdHandle
SetUnhandledExceptionFilter
Sleep
SleepConditionVariableSRW
TerminateProcess
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
UnhandledExceptionFilter
WaitForSingleObject
WakeAllConditionVariable
WideCharToMultiByte
WriteConsoleW
WriteFile
lstrcmpiW

Sections

.text
Size: 174KB - Virtual size: 174KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 59KB - Virtual size: 58KB

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: 7KB - Virtual size: 6KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.00cfg
Size: 512B - Virtual size: 56B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gxfg
Size: 8KB - Virtual size: 7KB

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

_RDATA
Size: 512B - Virtual size: 500B

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: 1.3MB - Virtual size: 2.0MB

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

deac793c737c6715eac9d34cc38e44a1

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

advapi32

shlwapi

user32

version

rpcrt4

shell32

ole32

crypt32

wintrust

kernel32

Sections

.text Size: 174KB - Virtual size: 174KB

.rdata Size: 59KB - Virtual size: 58KB

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

.pdata Size: 7KB - Virtual size: 6KB

.00cfg Size: 512B - Virtual size: 56B

.gxfg Size: 8KB - Virtual size: 7KB

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

_RDATA Size: 512B - Virtual size: 500B

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

.reloc Size: 1.3MB - Virtual size: 2.0MB

.text
Size: 174KB - Virtual size: 174KB

.rdata
Size: 59KB - Virtual size: 58KB

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

.pdata
Size: 7KB - Virtual size: 6KB

.00cfg
Size: 512B - Virtual size: 56B

.gxfg
Size: 8KB - Virtual size: 7KB

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

_RDATA
Size: 512B - Virtual size: 500B

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

.reloc
Size: 1.3MB - Virtual size: 2.0MB