2025-03-20_89638b8691bbabd7b3ff93c64612c8fa_ryuk

General

Target

2025-03-20_89638b8691bbabd7b3ff93c64612c8fa_ryuk
Size

139KB
MD5

89638b8691bbabd7b3ff93c64612c8fa
SHA1

1301e3b4efe398c067e0696a3db41f962c7e4593
SHA256

5d3d9b6382e76ef0385c275bff4cb58893befc6e5289e9023eace844ce87119f
SHA512

125d57166c5f9a153f55c457142ae96ea258da10c1b3374059ef6d3b0868b3bfe6ff77b969f9d6b338eb7aff14634115a9a41940b504c3a0dc265388419cfcdd
SSDEEP

3072:aiVBxBxlij/H9qU4j5rbZwpfHUSBMB/x8LMj4bfq:fVB1Yj/8vj5/iTM5x8wjyf

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2025-03-20_89638b8691bbabd7b3ff93c64612c8fa_ryuk

Files

2025-03-20_89638b8691bbabd7b3ff93c64612c8fa_ryuk
.exe windows:5 windows x86 arch:x86

8c8bbc003f86b962e3d95c972e631580

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

GetCurrentProcess
CreateThread
GetCurrentThread
SetLastError
WaitForMultipleObjects
Sleep
WinExec
GetLocalTime
GetTickCount
LoadLibraryA
GetSystemDirectoryA
CloseHandle
GetProcAddress
CreateFileW
DecodePointer
WriteConsoleW
SetFilePointerEx
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetStartupInfoW
IsProcessorFeaturePresent
GetModuleHandleW
TerminateProcess
RtlUnwind
GetLastError
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
FreeLibrary
LoadLibraryExW
ExitProcess
GetModuleHandleExW
GetStdHandle
WriteFile
GetModuleFileNameW
MultiByteToWideChar
WideCharToMultiByte
GetACP
HeapFree
HeapAlloc
GetStringTypeW
LCMapStringW
FindClose
FindFirstFileExW
FindNextFileW
IsValidCodePage
GetOEMCP
GetCPInfo
GetCommandLineA
GetCommandLineW
GetEnvironmentStringsW
FreeEnvironmentStringsW
SetStdHandle
GetFileType
GetProcessHeap
HeapSize
HeapReAlloc
FlushFileBuffers
GetConsoleCP
GetConsoleMode
RaiseException

advapi32

CloseServiceHandle

ws2_32

htons
htonl
bind
inet_addr

Sections

.text
Size: 94KB - Virtual size: 94KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 23KB - Virtual size: 22KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 20KB - Virtual size: 49KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.gfids
Size: 512B - Virtual size: 172B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

8c8bbc003f86b962e3d95c972e631580

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

advapi32

ws2_32

Sections

.text Size: 94KB - Virtual size: 94KB

.rdata Size: 23KB - Virtual size: 22KB

.data Size: 20KB - Virtual size: 49KB

.gfids Size: 512B - Virtual size: 172B

.text
Size: 94KB - Virtual size: 94KB

.rdata
Size: 23KB - Virtual size: 22KB

.data
Size: 20KB - Virtual size: 49KB

.gfids
Size: 512B - Virtual size: 172B