WinAsar[.]exe | Triage

Resubmissions

19/02/2024, 10:35

240219-mm2xaacd21 3

19/02/2024, 10:23

240219-mewqascf34 7

19/02/2024, 10:07

240219-l5nlyace52 7

Sharing

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General

Target

WinAsar.exe
Size

1.7MB
MD5

f1a8249c2acd5ffaf51b3bc3512f8f79
SHA1

d1fbad742883d85e28c20506b59c667ea7df0610
SHA256

15184a7ddf502c4e078eed4dfe41c8c74db31eb58f4fbf666c73b4249bc6235e
SHA512

4180800c87a74a0109f43587b2ce2e1742adcb94433ea434a27e1a07a2e6e51715a61872949bad6d7e25011ee00cbc8c05a64481769c3f3f83447944a5bcb75b
SSDEEP

24576:N7aC4dOggW8LmOK6CIA2f5LdAfY9DR10E/YzgiLpqyAlK7G0E153:NB8XQKvIA2f9UK5yAlp

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
WinAsar.exe

Files

WinAsar.exe
.exe windows:4 windows x86 arch:x86

66256f7b8909400c46f94b99ab1c938f

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE

Imports

kernel32

GetFileAttributesA
InterlockedIncrement
InterlockedDecrement
IsBadWritePtr
lstrlenW
FatalAppExitA
DebugBreak
lstrcpyW
FreeResource
FindResourceW
LoadResource
GetCurrentProcess
SizeofResource
GetConsoleWindow
GetFileAttributesW
GetModuleFileNameW
GetLongPathNameW
LockResource
CloseHandle
GetFileSize
_llseek
WriteFile
ReadFile
CreateFileW
VirtualFree
FreeLibrary
SetDllDirectoryW
WaitForSingleObject
GetDllDirectoryW
CreateRemoteThread
InitializeCriticalSection
OpenProcess
VirtualFreeEx
LoadLibraryW
ReadProcessMemory
LeaveCriticalSection
GetProcAddress
VirtualAlloc
EnterCriticalSection
VirtualAllocEx
OpenThread
GetProcessId
GetExitCodeThread
GetSystemInfo
DeleteCriticalSection
GetCurrentThreadId
GetCurrentProcessId
WriteProcessMemory
GetTickCount
SetFilePointer
GetCurrentThread
TerminateThread
Sleep
SuspendThread
ResumeThread
SystemTimeToTzSpecificLocalTime
TzSpecificLocalTimeToSystemTime
GetTimeZoneInformation
GetLocalTime
GetSystemTime
AllocConsole
SetEndOfFile
FlushConsoleInputBuffer
ReadConsoleW
SetConsoleCP
SetConsoleMode
GetConsoleOutputCP
GetStdHandle
LocalFree
SetConsoleCtrlHandler
SetConsoleOutputCP
SetConsoleWindowInfo
SetConsoleTitleW
GetNativeSystemInfo
HeapAlloc
HeapFree
GetProcessHeap
IsBadReadPtr
SetLastError
LoadLibraryA
VirtualProtect
GetCPInfo
GetOEMCP
IsValidCodePage
GetModuleHandleW
ExitProcess
DecodePointer
GetCommandLineW
HeapSetInformation
GetStartupInfoW
EncodePointer
UnhandledExceptionFilter
SetUnhandledExceptionFilter
IsDebuggerPresent
TerminateProcess
GetFullPathNameW
HeapReAlloc
GetStringTypeW
ExitThread
CreateThread
RtlUnwind
GetTimeFormatW
GetDateFormatW
GetSystemTimeAsFileTime
DuplicateHandle
CreateProcessA
DeleteFileW
MoveFileW
SetStdHandle
InitializeCriticalSectionAndSpinCount
CreateProcessW
RaiseException
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
GetUserDefaultLCID
GetLocaleInfoW
GetLocaleInfoA
EnumSystemLocalesA
IsValidLocale
LCMapStringW
FreeEnvironmentStringsW
GetEnvironmentStringsW
SetHandleCount
HeapCreate
QueryPerformanceCounter
GetConsoleCP
GetConsoleMode
FlushFileBuffers
IsProcessorFeaturePresent
CompareStringW
CreateFileA
CreatePipe
GetExitCodeProcess
HeapSize
WriteConsoleW
GetCurrentDirectoryW
GetDriveTypeW
SetEnvironmentVariableA
SetEnvironmentVariableW
GetLastError
MultiByteToWideChar
WideCharToMultiByte
FormatMessageA
GetModuleFileNameA
GetModuleHandleA
SetErrorMode
GetFileType
GetACP

user32

RegisterClassA
GetClientRect
CopyImage
MapWindowPoints
IsWindowVisible
LoadIconA
WinHelpA
CallWindowProcA
EqualRect
GetActiveWindow
SetWindowPos
ShowWindow
GetSystemMenu
SetActiveWindow
IsIconic
ModifyMenuA
GetWindowThreadProcessId
GetMessageW
TranslateMessage
PeekMessageW
DispatchMessageW
SendMessageA
SetForegroundWindow
MessageBoxW
SetWindowRgn
GetWindowRect
wsprintfA
SetFocus
OffsetRect
IntersectRect
MessageBoxA
GetWindowLongA
CreateWindowExA
DefWindowProcA
IsWindow

ole32

OleRegGetUserType
CreateOleAdviseHolder
CoTaskMemAlloc
OleCreate
OleSetContainedObject
StringFromIID
CLSIDFromString
CLSIDFromProgID
CoRegisterClassObject
CoRevokeClassObject
MkParseDisplayName
CreateBindCtx
CoCreateInstance
GetRunningObjectTable
CoTaskMemFree
StringFromCLSID
OleInitialize
OleUninitialize
CoLockObjectExternal

shlwapi

StrFormatByteSizeW
SHDeleteKeyA

gdi32

SetViewportOrgEx
SetWindowOrgEx
DeleteObject
CreateRectRgnIndirect
SetViewportExtEx
SetWindowExtEx
SetMapMode

advapi32

RegQueryValueExA
RegSetValueExA
RegCreateKeyExA
AdjustTokenPrivileges
LookupPrivilegeValueA
OpenProcessToken
RegCloseKey
RegEnumKeyExA
RegOpenKeyExA

shell32

ord165

oleaut32

OleSavePictureFile
UnRegisterTypeLi
GetActiveObject
VariantInit
VariantCopyInd
VariantClear
LoadTypeLibEx
SysAllocString
SysStringLen
SysAllocStringLen
LoadRegTypeLi
LHashValOfNameSys
SafeArrayCreateVector
VariantTimeToSystemTime
SafeArrayAccessData
VariantCopy
SafeArrayDestroy
SafeArrayCreate
SystemTimeToVariantTime
SafeArrayGetDim
VariantChangeType
SafeArrayGetElement
SafeArrayUnaccessData
SafeArrayPutElement
DispGetIDsOfNames
SysFreeString

Sections

.text
Size: 575KB - Virtual size: 575KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 106KB - Virtual size: 105KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 9KB - Virtual size: 18KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 1.1MB - Virtual size: 1.1MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Resubmissions

Sharing

General

Malware Config

Signatures

Files

66256f7b8909400c46f94b99ab1c938f

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

ole32

shlwapi

gdi32

advapi32

shell32

oleaut32

Sections

.text Size: 575KB - Virtual size: 575KB

.rdata Size: 106KB - Virtual size: 105KB

.data Size: 9KB - Virtual size: 18KB

.rsrc Size: 1.1MB - Virtual size: 1.1MB

.text
Size: 575KB - Virtual size: 575KB

.rdata
Size: 106KB - Virtual size: 105KB

.data
Size: 9KB - Virtual size: 18KB

.rsrc
Size: 1.1MB - Virtual size: 1.1MB