STOM[.]exe | Triage

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General

Target

STOM.exe
Size

714KB
MD5

3b9c6279316546847c39daf147dae37a
SHA1

27cbc60db603921287fa425ba83232768e23db0a
SHA256

66e61f596b84a8e7dfb87e7489d168275649a466e3d282ac698c1109e75f67a7
SHA512

d4368e29fb4571639abaa2a7afa97fe3bd2310274e2da92023703d66bf105203f68413e209ce5b87e4fb5ebe26fbb0037d2818f4244297a6f0f06c4609b04347
SSDEEP

12288:OBUivrHq81FPjWDNh56Y6vB7SNBhY4lRCz0njedoOl2nUqxv/Z:OyijHZmPE14B7nCz+jynl2njp

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
STOM.exe

Files

STOM.exe
.exe windows:6 windows x64 arch:x64

dc02462be99b5087d712676565601f14

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
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

DeleteCriticalSection
GetProcessHeap
MultiByteToWideChar
GlobalAlloc
GlobalFree
GlobalLock
WideCharToMultiByte
GlobalUnlock
LoadLibraryA
QueryPerformanceFrequency
GetProcAddress
VerSetConditionMask
FreeLibrary
VerifyVersionInfoW
QueryPerformanceCounter
CreateFileW
GetCurrentThreadId
CloseHandle
GetCurrentProcessId
SetEndOfFile
WriteConsoleW
SetStdHandle
SetEnvironmentVariableW
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetCommandLineW
GetCommandLineA
GetOEMCP
GetACP
IsValidCodePage
FindNextFileW
FindFirstFileExW
FindClose
ReadConsoleW
EnumSystemLocalesW
GetUserDefaultLCID
IsValidLocale
GetLocaleInfoW
LCMapStringW
DecodePointer
GetTimeFormatW
GetDateFormatW
GetConsoleMode
GetConsoleOutputCP
FlushFileBuffers
GetTimeZoneInformation
GetFileType
SetFilePointerEx
GetFileSizeEx
WriteFile
GetStdHandle
GetModuleFileNameW
ReadFile
GetModuleHandleExW
ExitProcess
LoadLibraryExW
TlsFree
TlsSetValue
TlsGetValue
TlsAlloc
SetLastError
RtlPcToFileHeader
RtlUnwindEx
InitializeSListHead
GetStartupInfoW
IsProcessorFeaturePresent
SetFileAttributesA
HeapAlloc
HeapReAlloc
Process32Next
DeleteFileA
OpenMutexA
GetLastError
Sleep
CreateToolhelp32Snapshot
HeapSize
GetModuleHandleA
CreateMutexA
InitializeCriticalSectionEx
TerminateProcess
GetCurrentProcess
SetUnhandledExceptionFilter
UnhandledExceptionFilter
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
CreateEventW
WaitForSingleObjectEx
ResetEvent
SetEvent
InitializeCriticalSectionAndSpinCount
RaiseException
OutputDebugStringW
RtlUnwind
HeapFree
CompareStringW
Process32First
IsDebuggerPresent
GetCPInfo
GetStringTypeW
GetLocaleInfoEx
EnterCriticalSection
LeaveCriticalSection
EncodePointer
LCMapStringEx
FlsAlloc
FlsGetValue
FlsSetValue
FlsFree
GetSystemTimeAsFileTime
GetModuleHandleW

user32

RegisterClassExA
GetAsyncKeyState
ShowWindow
UpdateWindow
GetDesktopWindow
PostQuitMessage
UnregisterClassA
PeekMessageA
TranslateMessage
CreateWindowExA
DestroyWindow
SetFocus
GetWindowRect
GetWindowLongW
AdjustWindowRectEx
GetKeyState
LoadCursorA
GetDC
SetWindowPos
MonitorFromWindow
EnumDisplayMonitors
ScreenToClient
SetWindowTextW
WindowFromPoint
GetCapture
SetWindowLongA
ClientToScreen
IsChild
GetMonitorInfoA
GetForegroundWindow
SetLayeredWindowAttributes
DispatchMessageA
BringWindowToTop
SetCapture
SetCursor
SetWindowLongW
GetClientRect
ReleaseCapture
SetForegroundWindow
IsIconic
SetCursorPos
ReleaseDC
GetCursorPos
OpenClipboard
CloseClipboard
EmptyClipboard
GetClipboardData
SetClipboardData
DefWindowProcA

gdi32

GetDeviceCaps

advapi32

RegCloseKey
RegSetValueExA
RegCreateKeyExA
RegOpenKeyExA

shell32

ShellExecuteA

d3d9

Direct3DCreate9

urlmon

URLDownloadToFileA

wininet

DeleteUrlCacheEntry
InternetOpenA
InternetCloseHandle
InternetReadFile
InternetOpenUrlA

imm32

ImmReleaseContext
ImmGetContext
ImmSetCompositionWindow

Sections

.text
Size: 508KB - Virtual size: 507KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 160KB - Virtual size: 160KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 17KB - Virtual size: 24KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 23KB - Virtual size: 23KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

_RDATA
Size: 512B - Virtual size: 348B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 512B - Virtual size: 488B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 3KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

dc02462be99b5087d712676565601f14

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

gdi32

advapi32

shell32

d3d9

urlmon

wininet

imm32

Sections

.text Size: 508KB - Virtual size: 507KB

.rdata Size: 160KB - Virtual size: 160KB

.data Size: 17KB - Virtual size: 24KB

.pdata Size: 23KB - Virtual size: 23KB

_RDATA Size: 512B - Virtual size: 348B

.rsrc Size: 512B - Virtual size: 488B

.reloc Size: 3KB - Virtual size: 2KB

.text
Size: 508KB - Virtual size: 507KB

.rdata
Size: 160KB - Virtual size: 160KB

.data
Size: 17KB - Virtual size: 24KB

.pdata
Size: 23KB - Virtual size: 23KB

_RDATA
Size: 512B - Virtual size: 348B

.rsrc
Size: 512B - Virtual size: 488B

.reloc
Size: 3KB - Virtual size: 2KB