WinSysUm[.]exe

Sharing

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General

Target

WinSysUm.exe
Size

669KB
MD5

8dc45039fddabf8d591bb59bb90b1a9c
SHA1

50c1b7af36629ac5b992b7e049855b36983edc25
SHA256

3a0b992d15e752a2bc7ac129d02d21abe521bfc01bd274c6abb1ae8c2d61cbb1
SHA512

4cd50127df941e8a8f43d29ac8c9f3bd6a6e149d83bfddb3f0009c87deed3cd12fd8a390e7e8d0eac1dcbae1d083ca67db18916d873daf691518195b7f977549
SSDEEP

12288:/Dy90AGjbOgD0/2gJxoLKuDjABu8Bm+UjilCLcA6bflKfgmPqK7I:/DycHOgo/1jebUBlUOl49ImPqK7I

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
WinSysUm.exe

Files

WinSysUm.exe
.exe windows:10 windows x86 arch:x86

646167cce332c1c252cdcb1839e0cf48

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_GUARD_CF
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE

PDB Paths

wextract.pdb

Imports

advapi32

GetTokenInformation
RegDeleteValueA
RegOpenKeyExA
RegQueryInfoKeyA
FreeSid
OpenProcessToken
RegSetValueExA
RegCreateKeyExA
LookupPrivilegeValueA
AllocateAndInitializeSid
RegQueryValueExA
EqualSid
RegCloseKey
AdjustTokenPrivileges

kernel32

_lopen
_llseek
CompareStringA
GetLastError
GetFileAttributesA
GetSystemDirectoryA
LoadLibraryA
DeleteFileA
GlobalAlloc
GlobalFree
CloseHandle
WritePrivateProfileStringA
IsDBCSLeadByte
GetWindowsDirectoryA
SetFileAttributesA
GetProcAddress
GlobalLock
LocalFree
RemoveDirectoryA
FreeLibrary
_lclose
CreateDirectoryA
GetPrivateProfileIntA
GetPrivateProfileStringA
GlobalUnlock
ReadFile
SizeofResource
WriteFile
GetDriveTypeA
lstrcmpA
SetFileTime
SetFilePointer
FindResourceA
CreateMutexA
GetVolumeInformationA
ExpandEnvironmentStringsA
GetCurrentDirectoryA
FreeResource
GetVersion
SetCurrentDirectoryA
GetTempPathA
LocalFileTimeToFileTime
CreateFileA
SetEvent
TerminateThread
GetVersionExA
LockResource
GetSystemInfo
CreateThread
ResetEvent
LoadResource
ExitProcess
GetModuleHandleW
CreateProcessA
FormatMessageA
GetTempFileNameA
DosDateTimeToFileTime
CreateEventA
GetExitCodeProcess
FindNextFileA
LocalAlloc
GetShortPathNameA
MulDiv
GetDiskFreeSpaceA
EnumResourceLanguagesA
GetTickCount
GetSystemTimeAsFileTime
GetCurrentThreadId
GetCurrentProcessId
QueryPerformanceCounter
TerminateProcess
SetUnhandledExceptionFilter
UnhandledExceptionFilter
GetStartupInfoW
Sleep
FindClose
GetCurrentProcess
FindFirstFileA
WaitForSingleObject
GetModuleFileNameA
LoadLibraryExA

gdi32

GetDeviceCaps

user32

SetWindowLongA
GetDlgItemTextA
DialogBoxIndirectParamA
ShowWindow
MsgWaitForMultipleObjects
SetWindowPos
GetDC
GetWindowRect
DispatchMessageA
GetDesktopWindow
CharUpperA
SetDlgItemTextA
ExitWindowsEx
MessageBeep
EndDialog
CharPrevA
LoadStringA
CharNextA
EnableWindow
ReleaseDC
SetForegroundWindow
PeekMessageA
GetDlgItem
SendMessageA
SendDlgItemMessageA
MessageBoxA
SetWindowTextA
GetWindowLongA
CallWindowProcA
GetSystemMetrics

msvcrt

_controlfp
?terminate@@YAXXZ
_acmdln
_initterm
__setusermatherr
_except_handler4_common
memcpy
_ismbblead
__p__fmode
_cexit
_exit
exit
__set_app_type
__getmainargs
_amsg_exit
__p__commode
_XcptFilter
memcpy_s
_vsnprintf
memset

comctl32

ord17

cabinet

ord22
ord23
ord21
ord20

version

GetFileVersionInfoA
VerQueryValueA
GetFileVersionInfoSizeA

Sections

.text
Size: 26KB - Virtual size: 25KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 6KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 635KB - Virtual size: 636KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

646167cce332c1c252cdcb1839e0cf48

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

advapi32

kernel32

gdi32

user32

msvcrt

comctl32

cabinet

version

Sections

.text Size: 26KB - Virtual size: 25KB

.data Size: 512B - Virtual size: 6KB

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

.rsrc Size: 635KB - Virtual size: 636KB

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

.text
Size: 26KB - Virtual size: 25KB

.data
Size: 512B - Virtual size: 6KB

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

.rsrc
Size: 635KB - Virtual size: 636KB

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