2024-05-15_759444e3c79e8f7662457b4bd662feb0_gazer_ryuk

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General

Target

2024-05-15_759444e3c79e8f7662457b4bd662feb0_gazer_ryuk
Size

6.1MB
MD5

759444e3c79e8f7662457b4bd662feb0
SHA1

c966bcfe7f2704c3507c56b8336ea4d0878b1123
SHA256

f17ee95e3e9843832c7e27a03dac5db605bcb1624d885005287ee900834491b2
SHA512

0901aaf04b352c7a001eed1da343caf17d96559518111d91d0fce4c3b3cbc736a3b8203907b6790085344bfa4a34c3da698d18beed5334467dec4231ef5aba1e
SSDEEP

49152:mkB988jwQmEcgxFF7q22WJxdyKv8ySStzKb/3k2OSaLCvE55pCx2WampGjnRzNvo:VFNdPSSE/AL5pCx2HmpGjnRzNv3

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
2024-05-15_759444e3c79e8f7662457b4bd662feb0_gazer_ryuk

Files

2024-05-15_759444e3c79e8f7662457b4bd662feb0_gazer_ryuk
.exe windows:5 windows x64 arch:x64

1662a0df48382dc96cdbff04e3ea7733

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
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

bcrypt

BCryptGenRandom

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

psapi

GetModuleFileNameExW

Sections

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

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 139KB - Virtual size: 138KB

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: 29KB - 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: 9KB

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: 313KB - Virtual size: 313KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

1662a0df48382dc96cdbff04e3ea7733

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

advapi32

shell32

bcrypt

netapi32

shlwapi

iphlpapi

ws2_32

wininet

psapi

Sections

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

.rdata Size: 139KB - Virtual size: 138KB

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

.pdata Size: 29KB - Virtual size: 28KB

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

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

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

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

_RDATA Size: 512B - Virtual size: 500B

.reloc Size: 313KB - Virtual size: 313KB

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

.rdata
Size: 139KB - Virtual size: 138KB

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

.pdata
Size: 29KB - Virtual size: 28KB

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

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

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

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

_RDATA
Size: 512B - Virtual size: 500B

.reloc
Size: 313KB - Virtual size: 313KB