2024-05-24_8a25afd4f04f7b8d812ff4db0210ab33_ryuk

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General

Target

2024-05-24_8a25afd4f04f7b8d812ff4db0210ab33_ryuk
Size

140KB
MD5

8a25afd4f04f7b8d812ff4db0210ab33
SHA1

aa19769dd6c37a53c128285310ea3e3f42cff9b5
SHA256

f1a46d7ec415718bf63849dd5e9ed0ad28ad7c825c0d80c8e779c55db0de28fd
SHA512

899157e08e5462522fc7d49f159e05aeed7b7aa131370f536e2c94a6fa577fdaba788fe67836129a5a79d2bce29b7e42880d4172d0b445929bab03440083e179
SSDEEP

3072:egKsEF7Wf33SdvlRmhYHP+8Pt1OOxkPo:jBwK3SBDmhYlOo

Score

10^/10

Malware Config

Signatures

Detects command variations typically used by ransomware 1 IoCs

resource	yara_rule
sample	INDICATOR_SUSPICIOUS_GENRansomware

Detects executables containing many references to VEEAM. Observed in ransomware 1 IoCs

resource	yara_rule
sample	INDICATOR_SUSPICOUS_EXE_References_VEEAM

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-05-24_8a25afd4f04f7b8d812ff4db0210ab33_ryuk

Files

2024-05-24_8a25afd4f04f7b8d812ff4db0210ab33_ryuk
.exe windows:5 windows x86 arch:x86

1d0b6b925df56e49ee2768263a3e72dc

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE

Imports

kernel32

OpenProcess
CreateToolhelp32Snapshot
Sleep
GetLastError
Process32NextW
GetCurrentThread
LoadLibraryA
GlobalAlloc
DeleteFileW
Process32FirstW
GetModuleHandleA
CloseHandle
HeapAlloc
GetWindowsDirectoryW
GetProcAddress
VirtualAllocEx
LocalFree
GetProcessHeap
FreeLibrary
CreateRemoteThread
VirtualFreeEx
GetVersionExW
CreateFileW
GetModuleFileNameW
GetCurrentProcess
GetCommandLineW
SetLastError
HeapFree
GlobalFree
DecodePointer
WriteConsoleW
SetFilePointerEx
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetStartupInfoW
IsProcessorFeaturePresent
GetModuleHandleW
TerminateProcess
RaiseException
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
LoadLibraryExW
RtlUnwind
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
ExitProcess
GetModuleHandleExW
GetStdHandle
WriteFile
GetModuleFileNameA
MultiByteToWideChar
WideCharToMultiByte
GetACP
LCMapStringW
GetFileType
FindClose
FindFirstFileExA
FindNextFileA
IsValidCodePage
GetOEMCP
GetCPInfo
GetCommandLineA
GetEnvironmentStringsW
FreeEnvironmentStringsW
SetStdHandle
GetStringTypeW
FlushFileBuffers
GetConsoleCP
GetConsoleMode
HeapSize
HeapReAlloc
WriteProcessMemory

advapi32

SystemFunction036
LookupPrivilegeValueW
AdjustTokenPrivileges
ImpersonateSelf
OpenProcessToken
OpenThreadToken
LookupAccountSidW
GetTokenInformation

shell32

CommandLineToArgvW
ShellExecuteW

Sections

.text
Size: 76KB - Virtual size: 76KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 35KB - Virtual size: 35KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 26KB - Virtual size: 3.4MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.gfids
Size: 512B - Virtual size: 180B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

1d0b6b925df56e49ee2768263a3e72dc

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

advapi32

shell32

Sections

.text Size: 76KB - Virtual size: 76KB

.rdata Size: 35KB - Virtual size: 35KB

.data Size: 26KB - Virtual size: 3.4MB

.gfids Size: 512B - Virtual size: 180B

.text
Size: 76KB - Virtual size: 76KB

.rdata
Size: 35KB - Virtual size: 35KB

.data
Size: 26KB - Virtual size: 3.4MB

.gfids
Size: 512B - Virtual size: 180B