Youdao[.]exe | Triage

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General

Target

Youdao.exe
Size

97.8MB
MD5

53d43d2d9e5a54290a9305f10840dfc4
SHA1

9ca31d8c5d2bcbd069d2a30e6c086d48c465c269
SHA256

b74cc19b8c3cfcd9af74f74c6d18815bd415dbc528bca898d220ad9cc1a4ffe2
SHA512

5287f87677013b2dcdb87017f090cf496e55a30cab38dcb3fb0b676bf7eb475e8f6ce2d55acea81da06025973ce39c2ac16450a142346c5719a56e94bf284ed4
SSDEEP

1572864:dT9nU/duJsIWysDXG+SmV1bTBe6sc0O06c4+XDIK3kKTDJgbX:IdCWfXG+SmVZteFDO0/4+XkK3fPGbX

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
Youdao.exe

Files

Youdao.exe
.exe windows:5 windows x86

1ff847646487d56f85778df99ff3728a

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

_lclose
GetModuleFileNameA
_lread
_llseek
_lopen
_lwrite
_lcreat
CreateDirectoryA
SetCurrentDirectoryA
lstrcatA
FreeLibrary
GetProcAddress
LoadLibraryA
GetDiskFreeSpaceA
GetFileAttributesA
RemoveDirectoryA
DeleteFileA
lstrlenA
GetCurrentDirectoryA
CloseHandle
GetExitCodeProcess
GetLastError
LocalFree
GetCurrentProcess
MoveFileExA
Sleep
GetStringTypeW
MultiByteToWideChar
LCMapStringW
HeapReAlloc
RtlUnwind
HeapSize
lstrcpyA
GetTempPathA
CompareStringA
IsValidCodePage
GetOEMCP
GetModuleHandleW
ExitProcess
DecodePointer
HeapFree
HeapAlloc
GetCommandLineA
HeapSetInformation
GetStartupInfoW
InitializeCriticalSectionAndSpinCount
DeleteCriticalSection
LeaveCriticalSection
EnterCriticalSection
EncodePointer
LoadLibraryW
UnhandledExceptionFilter
SetUnhandledExceptionFilter
IsDebuggerPresent
TerminateProcess
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
InterlockedIncrement
SetLastError
GetCurrentThreadId
InterlockedDecrement
WriteFile
GetStdHandle
GetModuleFileNameW
IsProcessorFeaturePresent
HeapCreate
FreeEnvironmentStringsW
WideCharToMultiByte
GetEnvironmentStringsW
SetHandleCount
GetFileType
QueryPerformanceCounter
GetTickCount
GetCurrentProcessId
GetSystemTimeAsFileTime
GetCPInfo
GetACP

user32

TranslateMessage
DispatchMessageA
PeekMessageA
wsprintfA
LoadCursorA
SetCursor
MessageBoxA
MsgWaitForMultipleObjects

advapi32

GetTokenInformation
OpenProcessToken

shell32

ShellExecuteExA

Sections

.text
Size: 22KB - Virtual size: 21KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 12KB - Virtual size: 11KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 3KB - Virtual size: 6KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 117KB - Virtual size: 116KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

1ff847646487d56f85778df99ff3728a

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

advapi32

shell32

Sections

.text Size: 22KB - Virtual size: 21KB

.rdata Size: 12KB - Virtual size: 11KB

.data Size: 3KB - Virtual size: 6KB

.rsrc Size: 117KB - Virtual size: 116KB

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

.text
Size: 22KB - Virtual size: 21KB

.rdata
Size: 12KB - Virtual size: 11KB

.data
Size: 3KB - Virtual size: 6KB

.rsrc
Size: 117KB - Virtual size: 116KB

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