Static task
static1
Behavioral task
behavioral1
Sample
2024-03-24_0e6499821deca6f63088c663f60a76c8_gazer_ryuk.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-03-24_0e6499821deca6f63088c663f60a76c8_gazer_ryuk.exe
Resource
win10v2004-20240226-en
General
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Target
2024-03-24_0e6499821deca6f63088c663f60a76c8_gazer_ryuk
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Size
6.0MB
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MD5
0e6499821deca6f63088c663f60a76c8
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SHA1
6ea2d58bed19655e0d79c01732890fd038e5fbbe
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SHA256
35bee472f429d47826926cc39acff42c5049d256666b2c7fa525766e863bfbe7
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SHA512
cb626f197672a632fc145f96da8114927bdfa7620135e90dcd48504332d8e00f2c5e44d97c3042481569839c8db01a2a1b3edab2e7c52907c2a2ef064eeeb765
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SSDEEP
98304:9caoZQU7LgG4PwVIsWE61NQq7vW+WHTemGoMF:9c1uUwfHNQqYTemGoMF
Malware Config
Signatures
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Detects command variations typically used by ransomware 1 IoCs
resource yara_rule sample INDICATOR_SUSPICIOUS_GENRansomware -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource 2024-03-24_0e6499821deca6f63088c663f60a76c8_gazer_ryuk
Files
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2024-03-24_0e6499821deca6f63088c663f60a76c8_gazer_ryuk.exe windows:5 windows x64 arch:x64
49e6287af890e460497d7376999d7002
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
AcquireSRWLockExclusive
CloseHandle
CopyFileW
CreateEventA
CreateEventW
CreateFileW
CreateIoCompletionPort
CreateThread
CreateToolhelp32Snapshot
DecodePointer
DeleteCriticalSection
DeviceIoControl
DuplicateHandle
EncodePointer
EnterCriticalSection
EnumSystemLocalesW
ExitProcess
FindClose
FindFirstFileExW
FindFirstVolumeW
FindNextFileW
FindNextVolumeW
FindVolumeClose
FlsAlloc
FlsFree
FlsGetValue
FlsSetValue
FlushFileBuffers
FreeEnvironmentStringsW
FreeLibrary
GetACP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetComputerNameA
GetConsoleMode
GetConsoleOutputCP
GetCurrentProcess
GetCurrentProcessId
GetCurrentThread
GetCurrentThreadId
GetDiskFreeSpaceExA
GetDiskFreeSpaceExW
GetDriveTypeW
GetEnvironmentStringsW
GetFileAttributesW
GetFileSizeEx
GetFileType
GetFinalPathNameByHandleW
GetLastError
GetLocaleInfoA
GetLocaleInfoW
GetLogicalDrives
GetModuleFileNameW
GetModuleHandleA
GetModuleHandleExW
GetModuleHandleW
GetNativeSystemInfo
GetOEMCP
GetProcAddress
GetProcessHeap
GetQueuedCompletionStatus
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemInfo
GetSystemTimeAsFileTime
GetTickCount
GetTickCount64
GetUserDefaultLCID
GetUserDefaultLangID
GetVolumePathNamesForVolumeNameW
GetWindowsDirectoryW
GlobalMemoryStatusEx
HeapAlloc
HeapFree
HeapReAlloc
HeapSize
InitializeConditionVariable
InitializeCriticalSection
InitializeCriticalSectionAndSpinCount
InitializeCriticalSectionEx
InitializeSListHead
IsDebuggerPresent
IsProcessorFeaturePresent
IsValidCodePage
IsValidLocale
K32GetModuleFileNameExW
LCMapStringEx
LCMapStringW
LeaveCriticalSection
LoadLibraryA
LoadLibraryExW
LocalFree
MoveFileW
MultiByteToWideChar
OpenProcess
OutputDebugStringW
PostQueuedCompletionStatus
Process32NextW
QueryDosDeviceW
QueryPerformanceCounter
RaiseException
ReadConsoleW
ReadFile
ReleaseSRWLockExclusive
RtlCaptureContext
RtlLookupFunctionEntry
RtlPcToFileHeader
RtlUnwindEx
RtlVirtualUnwind
SetEndOfFile
SetErrorMode
SetEvent
SetFileAttributesW
SetFilePointerEx
SetLastError
SetStdHandle
SetUnhandledExceptionFilter
SetVolumeMountPointW
Sleep
SleepConditionVariableCS
SleepConditionVariableSRW
SleepEx
TerminateProcess
TerminateThread
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
UnhandledExceptionFilter
WaitForMultipleObjects
WaitForSingleObject
WakeAllConditionVariable
WakeConditionVariable
WideCharToMultiByte
WriteConsoleW
WriteFile
lstrcatW
lstrcmpW
lstrcmpiW
lstrcpyW
lstrlenA
lstrlenW
user32
CreateWindowExW
DefWindowProcW
GetCursorPos
MessageBoxW
RegisterClassW
advapi32
AdjustTokenPrivileges
AllocateAndInitializeSid
ChangeServiceConfigW
CloseServiceHandle
ControlService
CreateServiceW
CryptAcquireContextW
CryptGenRandom
CryptReleaseContext
EnumDependentServicesW
EnumServicesStatusW
FreeSid
GetTokenInformation
LookupPrivilegeValueW
LsaClose
LsaFreeMemory
LsaOpenPolicy
LsaQueryInformationPolicy
OpenProcessToken
OpenSCManagerW
OpenServiceW
OpenThreadToken
QueryServiceConfigW
QueryServiceStatusEx
RegCloseKey
RegOpenKeyExA
RegOpenKeyExW
RegQueryValueExA
RegSetValueExW
SetEntriesInAclW
SetNamedSecurityInfoW
StartServiceW
shell32
CommandLineToArgvW
ShellExecuteA
ShellExecuteW
netapi32
NetApiBufferFree
NetShareEnum
shlwapi
PathFileExistsW
SHDeleteKeyW
StrCmpNIW
StrCmpNW
StrStrIW
UrlEscapeA
UrlUnescapeA
wnsprintfA
wnsprintfW
iphlpapi
GetIpNetTable
ws2_32
inet_ntoa
wininet
HttpOpenRequestW
HttpSendRequestW
InternetCloseHandle
InternetConnectW
InternetCrackUrlW
InternetOpenW
InternetQueryDataAvailable
InternetQueryOptionW
InternetReadFile
InternetSetOptionW
Sections
.text Size: 4.3MB - Virtual size: 4.3MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 131KB - Virtual size: 130KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 1.2MB - Virtual size: 1.2MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 28KB - Virtual size: 27KB
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: 9KB - Virtual size: 8KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.retplne Size: 512B - Virtual size: 156B
.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
.reloc Size: 306KB - Virtual size: 305KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ