2024-05-02_459a800bc21590ef20d23b95cf2a6f1a_ryuk

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General

Target

2024-05-02_459a800bc21590ef20d23b95cf2a6f1a_ryuk
Size

802KB
MD5

459a800bc21590ef20d23b95cf2a6f1a
SHA1

71c27f8a2f2bffeef23d6471f42ce4784423e2a2
SHA256

d536afd4f31af314ce3a9bbd2f12be6cbdcbd1f4432df5b44ca0ac32cfbf2fad
SHA512

7882ffb81220df460ed17fdaa448f2a7ed6b7e3bd7512e56c8767e4a7cd6507c9b44608222cd2724f776f40c523c12419a35ae81a271b440e00226d2adb8d8f1
SSDEEP

12288:qY5jLjqux1ANWEEsoO8CHieL1Gbdq+1MlKp03Vng/6Bl5JX5VV9:51n1ATNH7xGbU00ZFlfX5D9

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-05-02_459a800bc21590ef20d23b95cf2a6f1a_ryuk

Files

2024-05-02_459a800bc21590ef20d23b95cf2a6f1a_ryuk
.exe windows:6 windows x64 arch:x64

f53f717b43d8d2fb130b53421227b99c

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

OpenProcess
GetLastError
CloseHandle
CreateToolhelp32Snapshot
Process32First
Process32Next
VirtualAllocEx
WriteProcessMemory
VirtualFreeEx
Module32First
Module32Next
VirtualQueryEx
ReadProcessMemory
GetSystemInfo
VirtualProtectEx
VirtualProtect
GetCurrentProcess
Beep
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
RtlCaptureContext
TerminateProcess
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
IsDebuggerPresent
GetStartupInfoW
GetModuleHandleW
Sleep

user32

CallNextHookEx
SetWindowsHookExA

winmm

PlaySoundA

vcruntime140

memset
__C_specific_handler
_CxxThrowException
__std_exception_destroy
__std_exception_copy
__CxxRegisterExceptionObject
__CxxDetectRethrow
__CxxExceptionFilter
__CxxUnregisterExceptionObject
memmove
__CxxQueryExceptionSize
__FrameUnwindFilter

api-ms-win-crt-string-l1-1-0

_stricmp

api-ms-win-crt-runtime-l1-1-0

abort
_crt_atexit
_initialize_onexit_table
_register_onexit_function
_c_exit
_cexit
terminate
_exit
exit
_initterm_e
_initterm
_initialize_narrow_environment
_configure_narrow_argv
_set_app_type
_seh_filter_exe
_register_thread_local_exe_atexit_callback
_invalid_parameter_noinfo_noreturn
_get_narrow_winmain_command_line

api-ms-win-crt-math-l1-1-0

__setusermatherr

api-ms-win-crt-stdio-l1-1-0

_set_fmode
__p__commode

api-ms-win-crt-locale-l1-1-0

_configthreadlocale

api-ms-win-crt-heap-l1-1-0

_set_new_mode
free
_callnewh
malloc

msvcp140

?_Xlength_error@std@@YAXPEBD@Z
?_Xout_of_range@std@@YAXPEBD@Z
?_Xbad_alloc@std@@YAXXZ

mscoree

_CorExeMain

Sections

.text
Size: 32KB - Virtual size: 32KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.nep
Size: 512B - Virtual size: 64B

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 429KB - Virtual size: 428KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 2KB - Virtual size: 500.0MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 1024B - Virtual size: 756B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.gfids
Size: 512B - Virtual size: 48B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 335KB - Virtual size: 335KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 512B - Virtual size: 152B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

f53f717b43d8d2fb130b53421227b99c

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

winmm

vcruntime140

api-ms-win-crt-string-l1-1-0

api-ms-win-crt-runtime-l1-1-0

api-ms-win-crt-math-l1-1-0

api-ms-win-crt-stdio-l1-1-0

api-ms-win-crt-locale-l1-1-0

api-ms-win-crt-heap-l1-1-0

msvcp140

mscoree

Sections

.text Size: 32KB - Virtual size: 32KB

.nep Size: 512B - Virtual size: 64B

.rdata Size: 429KB - Virtual size: 428KB

.data Size: 2KB - Virtual size: 500.0MB

.pdata Size: 1024B - Virtual size: 756B

.gfids Size: 512B - Virtual size: 48B

.rsrc Size: 335KB - Virtual size: 335KB

.reloc Size: 512B - Virtual size: 152B

.text
Size: 32KB - Virtual size: 32KB

.nep
Size: 512B - Virtual size: 64B

.rdata
Size: 429KB - Virtual size: 428KB

.data
Size: 2KB - Virtual size: 500.0MB

.pdata
Size: 1024B - Virtual size: 756B

.gfids
Size: 512B - Virtual size: 48B

.rsrc
Size: 335KB - Virtual size: 335KB

.reloc
Size: 512B - Virtual size: 152B