2024-04-29_48dff2d26e11f7f3596d27227f7d9304_ryuk

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General

Target

2024-04-29_48dff2d26e11f7f3596d27227f7d9304_ryuk
Size

3.6MB
MD5

48dff2d26e11f7f3596d27227f7d9304
SHA1

5bb7c4e443da91533096813aa6bf236d8188d186
SHA256

b694f2097095537ba2d6ce1b78ef129557927b0c35320e7f27bc0bee17a383ab
SHA512

023205de22cafd493eacd8b40179cf8cf14edac6b9526a7e7d08674ace90b1ae043f7be7926f0abe4f40af8742ab4dd4583232b3992d34850481251aa31408f8
SSDEEP

49152:ZHPzmx5qh8Smmrn+d3io/dJ7u3UNhoouU3bGm0FVk1MGlV5zTqne:QuF+BfdN0Pk1MY

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-04-29_48dff2d26e11f7f3596d27227f7d9304_ryuk

Files

2024-04-29_48dff2d26e11f7f3596d27227f7d9304_ryuk
.exe windows:6 windows x64 arch:x64

1616e2fe3ecb4eb2efb630e879095791

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

Imports

kernel32

LoadLibraryA
LoadLibraryW
VerifyVersionInfoW
ResetEvent
SetWaitableTimer
SignalObjectAndWait
CreateWaitableTimerA
DuplicateHandle
InitializeCriticalSection
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
ReleaseSemaphore
SetThreadPriority
ResumeThread
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
SetCurrentDirectoryW
GetCurrentDirectoryW
GetFileAttributesW
GetFileAttributesExW
SetFileAttributesW
SetFilePointerEx
SetLastError
InitializeCriticalSectionAndSpinCount
TryEnterCriticalSection
SwitchToThread
SystemTimeToFileTime
K32GetProcessImageFileNameW
GenerateConsoleCtrlEvent
UnlockFile
GetSystemTimeAsFileTime
RtlCaptureContext
GetCurrentDirectoryA
DeleteFileA
GetFileAttributesA
OpenThread
SuspendThread
GetProcessId
GetThreadContext
ReadProcessMemory
MapViewOfFile
CreateToolhelp32Snapshot
Thread32First
Thread32Next
K32GetModuleFileNameExA
CreateProcessW
IsWow64Process
ExpandEnvironmentStringsW
CreateDirectoryW
CreateFileW
DeleteFileW
FindFirstFileW
FindNextFileW
GetFullPathNameW
GetTempFileNameW
RemoveDirectoryW
CreateDirectoryExW
CopyFileW
CopyFileExW
MoveFileW
MoveFileExW
SetVolumeLabelW
GetComputerNameW
HeapCreate
HeapAlloc
HeapReAlloc
HeapFree
HeapSize
HeapSetInformation
CreateFileMappingA
GetTickCount
GetLogicalProcessorInformation
VirtualAlloc
VirtualFree
VirtualQuery
ExpandEnvironmentStringsA
SetCurrentDirectoryA
CreateDirectoryA
FindClose
FindFirstFileA
FindNextFileA
GetFileTime
GetFullPathNameA
RemoveDirectoryA
SetFileAttributesA
SetHandleInformation
CreateProcessA
GetSystemTime
GetTempFileNameA
CreateDirectoryExA
CopyFileA
CopyFileExA
MoveFileA
MoveFileExA
SetVolumeLabelA
GetComputerNameA
ReleaseSRWLockExclusive
ReleaseSRWLockShared
AcquireSRWLockExclusive
AcquireSRWLockShared
TryAcquireSRWLockExclusive
TryAcquireSRWLockShared
WakeConditionVariable
WakeAllConditionVariable
SleepConditionVariableCS
SetThreadAffinityMask
FindFirstFileExA
GetProcessHeap
GetOEMCP
IsValidCodePage
WriteConsoleW
EnumSystemLocalesW
GetUserDefaultLCID
IsValidLocale
GetTimeFormatW
GetDateFormatW
GetACP
GetTimeZoneInformation
TzSpecificLocalTimeToSystemTime
SetFileTime
GetFileInformationByHandle
SystemTimeToTzSpecificLocalTime
FindFirstFileExW
SetEnvironmentVariableW
SetEnvironmentVariableA
GetFileType
ReadConsoleW
GetTempPathW
GetModuleHandleExW
ExitProcess
GetConsoleCP
RtlUnwindEx
RtlPcToFileHeader
CreateTimerQueue
UnregisterWaitEx
QueryDepthSList
InterlockedFlushSList
InterlockedPushEntrySList
InterlockedPopEntrySList
VirtualProtect
LoadLibraryExW
FreeLibraryAndExitThread
GetThreadTimes
UnregisterWait
RegisterWaitForSingleObject
GetProcessAffinityMask
GetNumaHighestNodeNumber
DeleteTimerQueueTimer
ChangeTimerQueueTimer
CreateTimerQueueTimer
GetThreadPriority
InitializeSListHead
GetStartupInfoW
IsProcessorFeaturePresent
SetUnhandledExceptionFilter
UnhandledExceptionFilter
RtlVirtualUnwind
RtlLookupFunctionEntry
GetCPInfo
GetStringTypeW
GetLocaleInfoW
LCMapStringW
CompareStringW
QueryPerformanceFrequency
QueryPerformanceCounter
DecodePointer
EncodePointer
GetModuleHandleW
GetModuleHandleA
GetModuleFileNameW
GetModuleFileNameA
GetVersionExW
CreateEventW
OutputDebugStringW
OutputDebugStringA
GetVolumeInformationW
GetDiskFreeSpaceW
GetDiskFreeSpaceA
GetEnvironmentVariableW
GetEnvironmentVariableA
GetCommandLineW
GetCommandLineA
FreeEnvironmentStringsW
GetEnvironmentStringsW
VerSetConditionMask
GetVersionExA
DeviceIoControl
GetDriveTypeA
CreateFileA
FileTimeToSystemTime
GetCurrentThread
SetEndOfFile
GetLogicalDrives
FindFirstChangeNotificationW
FindCloseChangeNotification
FileTimeToLocalFileTime
CompareFileTime
GetCurrentProcess
OpenProcess
TerminateProcess
GetConsoleMode
GetUserDefaultLangID
IsDBCSLeadByteEx
WideCharToMultiByte
MultiByteToWideChar
GetSystemInfo
GetCurrentThreadId
GetExitCodeProcess
RaiseException
SetStdHandle
GetStdHandle
GetShortPathNameW
GetDriveTypeW
GetProcAddress
FreeLibrary
CreateThread
GetCurrentProcessId
Sleep
WaitForSingleObjectEx
WaitForSingleObject
SetEvent
PeekNamedPipe
CreatePipe
SetErrorMode
GetLastError
CloseHandle
IsDebuggerPresent
WriteFile
SetFilePointer
ReadFile
GlobalMemoryStatusEx
FlushFileBuffers

user32

TranslateMessage
PeekMessageA
MsgWaitForMultipleObjects
DispatchMessageA

wsock32

WSACleanup
WSAGetLastError
WSAStartup
__WSAFDIsSet
accept
bind
closesocket
connect
inet_ntoa
getpeername
getsockname
getsockopt
listen
recv
recvfrom
select
send
sendto
setsockopt
shutdown
socket
gethostbyaddr
gethostbyname
gethostname

advapi32

RegQueryInfoKeyA
RegOpenKeyA
RegEnumValueA
RegEnumKeyExA
RegDeleteValueA
RegDeleteKeyExA
RegDeleteKeyA
RegCreateKeyExA
RegConnectRegistryA
RegCloseKey
RegSetValueExW
RegQueryValueExW
RegQueryInfoKeyW
RegOpenKeyExW
RegOpenKeyW
RegEnumValueW
RegEnumKeyExW
RegDeleteValueW
RegDeleteKeyExW
RegDeleteKeyW
RegCreateKeyExW
RegConnectRegistryW
GetUserNameA
LookupAccountNameW
LookupAccountNameA
LookupAccountSidW
LookupAccountSidA
SetSecurityDescriptorOwner
SetSecurityDescriptorGroup
SetFileSecurityW
RevertToSelf
ImpersonateSelf
GetSecurityDescriptorOwner
GetSecurityDescriptorGroup
GetFileSecurityW
AccessCheck
OpenThreadToken
InitializeSecurityDescriptor
RegQueryValueExA
RegSetValueExA
CryptAcquireContextA
CryptReleaseContext
CryptDeriveKey
CryptDestroyKey
CryptEncrypt
CryptDecrypt
CryptCreateHash
CryptHashData
CryptDestroyHash
RegOpenKeyExA

netapi32

NetApiBufferFree
NetRemoteTOD

ws2_32

getnameinfo
freeaddrinfo
getaddrinfo

shell32

SHGetSpecialFolderPathA

mpr

WNetGetConnectionA
WNetCloseEnum
WNetEnumResourceA
WNetOpenEnumA

ucore46

u_init
u_cleanup
ucnv_cbFromUWriteBytes
ucnv_cbToUWriteUChars
ubrk_close
uloc_getISOCountries
uloc_getISOLanguages
uloc_getDisplayCountry
uloc_getDisplayLanguage
uloc_getCountry
uloc_getLanguage
uloc_setDefault
uloc_getDefault
ucase_fold
ucase_tolower
ucase_toFullUpper
ucase_toFullLower
ucase_toFullFolding
ucasemap_close
ucasemap_open
??0UnicodeSet@icu@@QEAA@XZ
u_toupper
u_tolower
u_isprint
u_iscntrl
u_isspace
u_isblank
u_isgraph
u_ispunct
u_isxdigit
u_isalnum
u_isalpha
u_isdigit
u_isupper
u_islower
ucnv_toUCountPending
ucnv_fromUCountPending
ucnv_setFallback
ucnv_getAliases
ucnv_countAliases
ucnv_convertEx
ucnv_fromUChars
ucnv_toUnicode
ucnv_fromUnicode
ucnv_setFromUCallBack
ucnv_setToUCallBack
ucnv_getUnicodeSet
ucnv_getName
ucnv_getMaxCharSize
ucnv_resetFromUnicode
ucnv_resetToUnicode
ucnv_reset
ucnv_close
ucnv_open
ucnv_compareNames
??3UMemory@icu@@SAXPEAX@Z
??2UMemory@icu@@SAPEAX_K@Z
utf8_prevCharSafeBody
utf8_nextCharSafeBody
u_memcpy
ucase_toupper

version

VerQueryValueA
GetFileVersionInfoA
GetFileVersionInfoSizeA

Exports

Exports

?CurrentKind@btkEvent@@1HA
?PRO_MACHINE_TYPE@@3PEBDEB
?PRO_OS_TYPE@@3PEBDEB
?StdStream@btkProcess@@2VDefaultStream@1@A
?mbsMode@btkMBStrFunc@@0PEAVbtkOBSFunc@@EA

Sections

.text
Size: 2.1MB - Virtual size: 2.1MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 656KB - Virtual size: 656KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 696KB - Virtual size: 895KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 125KB - Virtual size: 124KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.datapro
Size: 512B - Virtual size: 52B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.gfids
Size: 3KB - Virtual size: 2KB

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

.rsrc
Size: 1024B - Virtual size: 736B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 31KB - Virtual size: 31KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

1616e2fe3ecb4eb2efb630e879095791

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

wsock32

advapi32

netapi32

ws2_32

shell32

mpr

ucore46

version

Exports

Exports

Sections

.text Size: 2.1MB - Virtual size: 2.1MB

.rdata Size: 656KB - Virtual size: 656KB

.data Size: 696KB - Virtual size: 895KB

.pdata Size: 125KB - Virtual size: 124KB

.datapro Size: 512B - Virtual size: 52B

.gfids Size: 3KB - Virtual size: 2KB

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

.rsrc Size: 1024B - Virtual size: 736B

.reloc Size: 31KB - Virtual size: 31KB

.text
Size: 2.1MB - Virtual size: 2.1MB

.rdata
Size: 656KB - Virtual size: 656KB

.data
Size: 696KB - Virtual size: 895KB

.pdata
Size: 125KB - Virtual size: 124KB

.datapro
Size: 512B - Virtual size: 52B

.gfids
Size: 3KB - Virtual size: 2KB

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

.rsrc
Size: 1024B - Virtual size: 736B

.reloc
Size: 31KB - Virtual size: 31KB