2024-08-21_b9c1573a58ac02eada44915c564b077d_ryuk

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General

Target

2024-08-21_b9c1573a58ac02eada44915c564b077d_ryuk
Size

416KB
MD5

b9c1573a58ac02eada44915c564b077d
SHA1

b00db3ab6f9a7815132020af9904d909543cf78f
SHA256

bf16fec3f825ad867de938433127e45386cd828006b1453c7d2bd8aa7b72c0f1
SHA512

249666a90337f5c7a6af3fbd169091c46f96e329689d7af7cdc2d6daaa1788d49af62b08abe36e377e4ffdaaa41e1e397e6f6bd65edcc48b75fab33310017fcb
SSDEEP

6144:SRwaIJ+glDsUvWVnRBJmf1/rQcBxwkhA0Lm5:SRT7GDSAhU

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-08-21_b9c1573a58ac02eada44915c564b077d_ryuk

Files

2024-08-21_b9c1573a58ac02eada44915c564b077d_ryuk
.exe windows:6 windows x64 arch:x64

7404853f9a2768583879ed766d465f38

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_GUARD_CF
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

PDB Paths

E:\r\ws\St_Make\code\build\win\results\Release\info\CaptiveAppEntry.vc2015.pdb

Imports

kernel32

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

shell32

CommandLineToArgvW

user32

MessageBoxExW

shlwapi

StrCmpW

Exports

Exports

AmdPowerXpressRequestBetterBatteryLife
NvOptimusDisablement

Sections

.text
Size: 40KB - Virtual size: 39KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 42KB - Virtual size: 41KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 3KB - Virtual size: 7KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 3KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 325KB - Virtual size: 325KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 2KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

7404853f9a2768583879ed766d465f38

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

kernel32

shell32

user32

shlwapi

Exports

Exports

Sections

.text Size: 40KB - Virtual size: 39KB

.rdata Size: 42KB - Virtual size: 41KB

.data Size: 3KB - Virtual size: 7KB

.pdata Size: 3KB - Virtual size: 3KB

.rsrc Size: 325KB - Virtual size: 325KB

.reloc Size: 2KB - Virtual size: 1KB

.text
Size: 40KB - Virtual size: 39KB

.rdata
Size: 42KB - Virtual size: 41KB

.data
Size: 3KB - Virtual size: 7KB

.pdata
Size: 3KB - Virtual size: 3KB

.rsrc
Size: 325KB - Virtual size: 325KB

.reloc
Size: 2KB - Virtual size: 1KB