Static task
static1
Behavioral task
behavioral1
Sample
Kuai-18.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
Kuai-18.exe
Resource
win10v2004-20240802-en
General
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Target
Kuai-18.exe.vir
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Size
48.7MB
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MD5
971b35daf01c4057e4faefda45b2b0d7
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SHA1
cea08c7bada7586a83bb5ec01b3f3585c82eea95
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SHA256
cbd94126405c44119358a00262a691ed884c2f3853d703928925ba5d8ea6b898
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SHA512
3205010193388447da9ffb18872fcc2d6f2302c79239a76317a3bdef4428c1ef8282f9d05071ff3940117a1dde100b5d145f8a674eb7fdc3a7d08d5979155571
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SSDEEP
1572864:t5555552tOgqtOgqtOgqtOgt555QkbCvrSb7Ze9FqD:At9qt9qt9qt9M9Sf0O
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource Kuai-18.exe.vir
Files
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Kuai-18.exe.vir.exe windows:5 windows x64 arch:x64
838dd9fbdbb409224ad0e13122a109ae
Headers
DLL Characteristics
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
LoadLibraryA
lstrcpyA
lstrcatA
lstrlenA
GetSystemDirectoryA
GetProcAddress
GetModuleHandleA
_lclose
GetModuleFileNameA
_lread
_llseek
_lopen
_lwrite
_lcreat
CreateDirectoryA
SetCurrentDirectoryA
GetDiskFreeSpaceA
GetFileAttributesA
CompareStringA
DeleteFileA
GetTempPathA
GetCurrentDirectoryA
CloseHandle
GetExitCodeProcess
GetLastError
LocalFree
GetCurrentProcess
MoveFileExA
GetStringTypeW
MultiByteToWideChar
LCMapStringW
HeapReAlloc
HeapSize
IsValidCodePage
Sleep
RemoveDirectoryA
FreeLibrary
GetOEMCP
GetACP
GetModuleHandleW
ExitProcess
DecodePointer
HeapFree
HeapAlloc
GetCommandLineA
GetStartupInfoW
InitializeCriticalSectionAndSpinCount
DeleteCriticalSection
LeaveCriticalSection
EnterCriticalSection
EncodePointer
LoadLibraryW
UnhandledExceptionFilter
SetUnhandledExceptionFilter
IsDebuggerPresent
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
TerminateProcess
FlsGetValue
FlsSetValue
FlsFree
SetLastError
GetCurrentThreadId
FlsAlloc
RtlUnwindEx
WriteFile
GetStdHandle
GetModuleFileNameW
HeapSetInformation
GetVersion
HeapCreate
FreeEnvironmentStringsW
WideCharToMultiByte
GetEnvironmentStringsW
SetHandleCount
GetFileType
QueryPerformanceCounter
GetTickCount
GetCurrentProcessId
GetSystemTimeAsFileTime
GetCPInfo
user32
TranslateMessage
DispatchMessageA
PeekMessageA
wsprintfA
LoadCursorA
SetCursor
MessageBoxA
MsgWaitForMultipleObjects
advapi32
GetTokenInformation
OpenProcessToken
shell32
ShellExecuteExA
Sections
.text Size: 25KB - Virtual size: 25KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 15KB - Virtual size: 14KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 4KB - Virtual size: 8KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 28KB - Virtual size: 27KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 1024B - Virtual size: 990B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ