BiosSM[.]exe | Triage

Sharing

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General

Target

BiosSM.exe
Size

9.3MB
MD5

95b3befab091fb1574cda9af586426b2
SHA1

7ddb773c19581409c3dcc8784a9ef76ec55a3a4c
SHA256

d86979bcbd3a70d38cf6b36e4f85e0385e74ab9f6456b9a3e423b4dafe6bd930
SHA512

6911a95f2207f0842162e6c73509c8494dacff0674c9f45f81f6885e1b316e69297c1c463b4cb767858e8a2bfa09d33f3662134c6720b3cb21ec47d07095d656
SSDEEP

196608:BmbcnlICW849rfoBoOvA4NrlcBIkmDJwWBgkD4J6O1pF9c+ktZZd:Bicn6dLob4PfmDu0gFJ6gpfc+kHH

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
BiosSM.exe

Files

BiosSM.exe
.exe windows:4 windows x64 arch:x64

7182b1ea6f92adbf459a2c65d8d4dd9e

Headers

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_LARGE_ADDRESS_AWARE

Imports

msvcrt

memset
wcsncmp
memmove
wcsncpy
wcsstr
_wcsnicmp
_wcsdup
free
_wcsicmp
wcslen
wcscpy
wcscmp
memcpy
tolower
wcscat
malloc

kernel32

GetModuleHandleW
HeapCreate
GetStdHandle
HeapDestroy
ExitProcess
WriteFile
GetTempFileNameW
LoadLibraryExW
EnumResourceTypesW
FreeLibrary
RemoveDirectoryW
GetExitCodeProcess
EnumResourceNamesW
GetCommandLineW
LoadResource
SizeofResource
FreeResource
FindResourceW
GetShortPathNameW
GetSystemDirectoryW
EnterCriticalSection
CloseHandle
LeaveCriticalSection
InitializeCriticalSection
WaitForSingleObject
TerminateThread
CreateThread
Sleep
WideCharToMultiByte
HeapAlloc
HeapFree
LoadLibraryW
GetProcAddress
GetCurrentProcessId
GetCurrentThreadId
GetModuleFileNameW
GetEnvironmentVariableW
SetEnvironmentVariableW
GetCurrentProcess
TerminateProcess
RtlLookupFunctionEntry
RtlVirtualUnwind
RemoveVectoredExceptionHandler
AddVectoredExceptionHandler
HeapSize
MultiByteToWideChar
CreateDirectoryW
SetFileAttributesW
GetTempPathW
DeleteFileW
GetCurrentDirectoryW
SetCurrentDirectoryW
CreateFileW
SetFilePointer
TlsFree
TlsGetValue
TlsSetValue
TlsAlloc
HeapReAlloc
DeleteCriticalSection
GetLastError
SetLastError
UnregisterWait
GetCurrentThread
DuplicateHandle
RegisterWaitForSingleObject

shell32

ShellExecuteExW
SHGetFolderLocation
SHGetPathFromIDListW

winmm

timeBeginPeriod

ole32

CoInitialize
CoTaskMemFree

shlwapi

PathAddBackslashW
PathRenameExtensionW
PathQuoteSpacesW
PathRemoveArgsW
PathRemoveBackslashW

user32

CharUpperW
CharLowerW
MessageBoxW
DefWindowProcW
GetWindowLongPtrW
GetWindowTextLengthW
GetWindowTextW
EnableWindow
DestroyWindow
UnregisterClassW
LoadIconW
LoadCursorW
RegisterClassExW
IsWindowEnabled
GetSystemMetrics
CreateWindowExW
SetWindowLongPtrW
SendMessageW
SetFocus
CreateAcceleratorTableW
SetForegroundWindow
BringWindowToTop
GetMessageW
TranslateAcceleratorW
TranslateMessage
DispatchMessageW
DestroyAcceleratorTable
PostMessageW
GetForegroundWindow
GetWindowThreadProcessId
IsWindowVisible
EnumWindows
SetWindowPos

gdi32

GetStockObject

comctl32

InitCommonControlsEx

Sections

.code
Size: 23KB - Virtual size: 22KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.text
Size: 65KB - Virtual size: 64KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 19KB - Virtual size: 18KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 5KB - Virtual size: 8KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 9.2MB - Virtual size: 9.2MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

7182b1ea6f92adbf459a2c65d8d4dd9e

Headers

File Characteristics

Imports

msvcrt

kernel32

shell32

winmm

ole32

shlwapi

user32

gdi32

comctl32

Sections

.code Size: 23KB - Virtual size: 22KB

.text Size: 65KB - Virtual size: 64KB

.rdata Size: 19KB - Virtual size: 18KB

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

.data Size: 5KB - Virtual size: 8KB

.rsrc Size: 9.2MB - Virtual size: 9.2MB

.code
Size: 23KB - Virtual size: 22KB

.text
Size: 65KB - Virtual size: 64KB

.rdata
Size: 19KB - Virtual size: 18KB

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

.data
Size: 5KB - Virtual size: 8KB

.rsrc
Size: 9.2MB - Virtual size: 9.2MB