2024-02-18_4ba6b0d4fc46d595e1b59a965a0044a4_gazer_ryuk

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General

Target

2024-02-18_4ba6b0d4fc46d595e1b59a965a0044a4_gazer_ryuk
Size

6.1MB
MD5

4ba6b0d4fc46d595e1b59a965a0044a4
SHA1

55e5e00cac5a78d51d370b347d1982288151d553
SHA256

6976ffaa2deac082dedcd30e2ecb2faa86e5361d1c22d6678baf44985ef217ce
SHA512

768d350c06bac0a07b11d076bbc8164d8bd0fe48263fa7848ec13c856d6d46513754ba3f2bd87ce5717904b70a0e2efe5d7f66ef604c83286b3c6f9853f48c6f
SSDEEP

98304:ilLAB1vqhIQD/u9LkqFle1Gui16ZEXiZTslVw53gcbj:is0IQq9LjFlk53gc

Score

10^/10

Malware Config

Signatures

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
2024-02-18_4ba6b0d4fc46d595e1b59a965a0044a4_gazer_ryuk

Files

2024-02-18_4ba6b0d4fc46d595e1b59a965a0044a4_gazer_ryuk
.exe windows:5 windows x64 arch:x64

c57aa4ee63a76fdf9df0f5a02f846ba4

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
CreateFileA
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
GetFileTime
GetFileType
GetFinalPathNameByHandleW
GetLastError
GetLocaleInfoA
GetLocaleInfoW
GetLogicalDrives
GetModuleFileNameW
GetModuleHandleA
GetModuleHandleExW
GetModuleHandleW
GetNativeSystemInfo
GetOEMCP
GetProcAddress
GetProcessHeap
GetQueuedCompletionStatus
GetStartupInfoW
GetStdHandle
GetStringTypeW
GetSystemInfo
GetSystemTimeAsFileTime
GetTickCount
GetTickCount64
GetUserDefaultLCID
GetUserDefaultLangID
GetVolumeInformationW
GetVolumePathNamesForVolumeNameW
GetWindowsDirectoryA
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: 4.4MB - Virtual size: 4.4MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 131KB - Virtual size: 131KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 1.2MB - Virtual size: 1.3MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 28KB - Virtual size: 28KB

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: 312KB - Virtual size: 312KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

c57aa4ee63a76fdf9df0f5a02f846ba4

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

advapi32

shell32

netapi32

shlwapi

iphlpapi

ws2_32

wininet

Sections

.text Size: 4.4MB - Virtual size: 4.4MB

.rdata Size: 131KB - Virtual size: 131KB

.data Size: 1.2MB - Virtual size: 1.3MB

.pdata Size: 28KB - Virtual size: 28KB

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

.gxfg Size: 9KB - Virtual size: 8KB

.retplne Size: 512B - Virtual size: 156B

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

_RDATA Size: 512B - Virtual size: 500B

.reloc Size: 312KB - Virtual size: 312KB

.text
Size: 4.4MB - Virtual size: 4.4MB

.rdata
Size: 131KB - Virtual size: 131KB

.data
Size: 1.2MB - Virtual size: 1.3MB

.pdata
Size: 28KB - Virtual size: 28KB

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

.gxfg
Size: 9KB - Virtual size: 8KB

.retplne
Size: 512B - Virtual size: 156B

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

_RDATA
Size: 512B - Virtual size: 500B

.reloc
Size: 312KB - Virtual size: 312KB