ryuk[.]bin[.]zip

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General

Target

ryuk.bin.zip
Size

191KB
MD5

1ae3a85e87db3236be5c53bb008d003c
SHA1

a70b536231420d6ba14438e0d10288c69a4d99bb
SHA256

db670caff58f0802a99720ba76d29940eb62174bb3a884cd9a14432666eab7bf
SHA512

07fa3d2b806e8527fef2425722bdfc24eebee05eb6a29527bc69d4e61a24cb7eba52992bb2b5b08f56dbf96207ba3e408cc281eef6dce0e71f5e2b7f14a581a4
SSDEEP

3072:6AuC7+Vz0orbiQgckgG9hPlc2jTdgwsUGdweOTBj9FOq+QN37jxl8LYJjhx/x:6q7y06NSO6+wsUGdhOTBjiqTjxmm9x5

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs
Checks for missing Authenticode signature.

Processes:

resource

unpack001/ryuk.bin

resource
unpack001/ryuk.bin

Files

ryuk.bin.zip
.zip

Password: infected
ryuk.bin
.exe windows:5 windows x86 arch:x86

Password: nope

dc5733c013378fa418d13773f5bfe6f1

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE

Imports

kernel32

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

shell32

ShellExecuteW

advapi32

SystemFunction036

Sections

.text
Size: 43KB - Virtual size: 43KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 312KB - Virtual size: 314KB

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

.reloc
Size: 4KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

Password: infected

Password: nope

dc5733c013378fa418d13773f5bfe6f1

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

shell32

advapi32

Sections

.text Size: 43KB - Virtual size: 43KB

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

.data Size: 312KB - Virtual size: 314KB

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

.reloc Size: 4KB - Virtual size: 3KB

.text
Size: 43KB - Virtual size: 43KB

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

.data
Size: 312KB - Virtual size: 314KB

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

.reloc
Size: 4KB - Virtual size: 3KB