pestudio[.]exe

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General

Target

pestudio.exe
Size

888KB
MD5

bd850d7328e8d1a5e532cd5415188c73
SHA1

d0f6cb25570cd6edad588f102f05318b127a220a
SHA256

a769e435bb4b699f32e39c8fe0219e5a428709b0d07c1dac9b63aa730c9fbda0
SHA512

5478fed4730c228cf12bc1afb46d5750224f91b4639904cca9d3ee21eac7fd5873257013bde2a982a070f35feec6a45bcda9800d0a86a3a8ddcddbf9798b9fca
SSDEEP

24576:kFaHUsuY5hHKhxT7vLg5yRVK1qHOCrP50:1U4hJ1+50

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
pestudio.exe

Files

pestudio.exe
.exe windows:5 windows x64 arch:x64

2bf92df946b0acca7564b5a340e76257

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

Imports

kernel32

lstrlenA
GetStartupInfoW
RtlPcToFileHeader
RtlLookupFunctionEntry
RtlUnwindEx
TerminateProcess
UnhandledExceptionFilter
SetUnhandledExceptionFilter
IsDebuggerPresent
RtlVirtualUnwind
RtlCaptureContext
HeapAlloc
HeapFree
Sleep
ExitProcess
HeapReAlloc
HeapQueryInformation
HeapSize
GetStdHandle
GetModuleFileNameA
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetCommandLineW
SetHandleCount
GetFileType
GetStartupInfoA
EncodePointer
DecodePointer
FlsGetValue
FlsSetValue
GetFileSizeEx
FlsAlloc
HeapSetInformation
HeapCreate
QueryPerformanceCounter
GetSystemTimeAsFileTime
GetCPInfo
GetACP
GetOEMCP
IsValidCodePage
LCMapStringA
LCMapStringW
InitializeCriticalSectionAndSpinCount
GetTimeZoneInformation
GetLocaleInfoA
GetConsoleCP
GetConsoleMode
GetStringTypeA
GetStringTypeW
SetStdHandle
WriteConsoleA
GetConsoleOutputCP
WriteConsoleW
CreateFileA
SetEnvironmentVariableA
SystemTimeToFileTime
LocalFileTimeToFileTime
GetFileAttributesExW
FileTimeToLocalFileTime
FileTimeToSystemTime
CreateFileW
GetShortPathNameW
GetVolumeInformationW
FindFirstFileW
FindClose
GetCurrentProcess
DuplicateHandle
GetFileSize
SetEndOfFile
UnlockFile
LockFile
FlushFileBuffers
SetFilePointer
WriteFile
ReadFile
lstrcmpiW
GetThreadLocale
GetStringTypeExW
DeleteFileW
MoveFileW
TlsFree
DeleteCriticalSection
LocalReAlloc
TlsSetValue
GlobalHandle
GlobalReAlloc
TlsAlloc
InitializeCriticalSection
EnterCriticalSection
TlsGetValue
LeaveCriticalSection
LocalFree
LocalAlloc
GlobalFlags
WritePrivateProfileStringW
GlobalGetAtomNameW
MulDiv
GlobalFindAtomW
GetVersionExW
CompareStringW
LoadLibraryA
GetVersionExA
GetTickCount
GetDiskFreeSpaceW
GetFullPathNameW
GetTempFileNameW
GetFileTime
SetFileTime
lstrlenW
GetFileAttributesW
GlobalUnlock
GlobalFree
FreeResource
GetCurrentProcessId
GlobalAddAtomW
GlobalDeleteAtom
GetCurrentThread
GetCurrentThreadId
ConvertDefaultLocale
EnumResourceLanguagesW
lstrcmpA
GetLocaleInfoW
CompareStringA
GlobalLock
lstrcmpW
GlobalAlloc
lstrcpyW
SetErrorMode
GetModuleFileNameW
CloseHandle
FreeLibrary
GetLastError
SetLastError
GetProcAddress
GetModuleHandleW
LoadLibraryW
lstrcpynW
MultiByteToWideChar
WideCharToMultiByte
FindResourceW
LoadResource
LockResource
SizeofResource
FlsFree
RaiseException

user32

GetSysColorBrush
DestroyIcon
CharUpperW
UnregisterClassW
SetCursorPos
ReleaseCapture
SetCapture
EndPaint
BeginPaint
GetWindowDC
GrayStringW
DrawTextExW
DrawTextW
TabbedTextOutW
FillRect
GetMenuStringW
DestroyMenu
GetMenuItemInfoW
ShowWindow
MoveWindow
SetWindowTextW
IsDialogMessageW
WindowFromPoint
ClientToScreen
SetRect
SetRectEmpty
LoadIconW
SendDlgItemMessageA
SendDlgItemMessageW
WinHelpW
IsChild
GetCapture
GetClassNameW
GetClassLongPtrW
SetPropW
GetPropW
RemovePropW
SetFocus
GetWindowTextLengthW
GetWindowTextW
BeginDeferWindowPos
EndDeferWindowPos
GetTopWindow
GetWindowLongPtrW
SetWindowLongPtrW
UnhookWindowsHookEx
GetMessageTime
TrackPopupMenu
SetMenu
SetScrollPos
GetScrollPos
SetForegroundWindow
GetMenuItemID
CreateWindowExW
GetClassInfoExW
GetClassInfoW
RegisterClassW
AdjustWindowRectEx
EqualRect
DeferWindowPos
GetDlgCtrlID
DefWindowProcW
CallWindowProcW
GetMenu
SetWindowLongW
SetWindowPos
OffsetRect
IntersectRect
SystemParametersInfoA
IsIconic
GetWindowPlacement
GetWindow
GetDesktopWindow
SetActiveWindow
CreateDialogIndirectParamW
DestroyWindow
GetDlgItem
GetNextDlgTabItem
EndDialog
GetWindowThreadProcessId
GetWindowLongW
GetLastActivePopup
IsWindowEnabled
MessageBoxW
ShowOwnedPopups
SetCursor
SetWindowsHookExW
CallNextHookEx
GetMessageW
TranslateMessage
DispatchMessageW
GetActiveWindow
PeekMessageW
ValidateRect
SetMenuItemBitmaps
GetMenuCheckMarkDimensions
IsZoomed
UnpackDDElParam
ReuseDDElParam
LoadAcceleratorsW
InsertMenuItemW
CreatePopupMenu
BringWindowToTop
TranslateAcceleratorW
LoadCursorW
GetForegroundWindow
DestroyCursor
IsWindow
PostQuitMessage
IsWindowVisible
CheckMenuItem
EnableMenuItem
GetMenuItemCount
GetSubMenu
RemoveMenu
LoadMenuW
GetCursorPos
CopyRect
PtInRect
InflateRect
SendMessageW
GetClientRect
ScreenToClient
GetDC
ReleaseDC
UpdateWindow
InvalidateRect
EnableWindow
GetMessagePos
GetParent
ModifyMenuW
GetSysColor
LoadBitmapW
GetFocus
PostMessageW
GetSystemMetrics
SystemParametersInfoW
GetWindowRect
GetMenuState
RegisterWindowMessageW
KillTimer
SetTimer
GetKeyState
ShowScrollBar
CreateIconFromResourceEx
SetParent
RedrawWindow
MapWindowPoints

gdi32

OffsetViewportOrgEx
SetViewportExtEx
ScaleViewportExtEx
SetWindowExtEx
ScaleWindowExtEx
CreatePatternBrush
SetViewportOrgEx
GetDeviceCaps
GetTextMetricsW
TextOutW
Escape
RectVisible
PtVisible
GetPixel
CreateFontIndirectW
IntersectClipRect
ExcludeClipRect
SetMapMode
SetBkMode
RestoreDC
SaveDC
PatBlt
ExtTextOutW
BitBlt
GetBkColor
CreateCompatibleBitmap
CreateCompatibleDC
StretchDIBits
DeleteDC
CreateFontW
SelectObject
GetCharWidthW
DeleteObject
SetBkColor
SetTextColor
GetClipBox
CreateBitmap
GetStockObject
CreateSolidBrush
GetTextExtentPoint32W
GetCurrentObject
GetObjectW

comdlg32

GetFileTitleW

advapi32

RegSetValueW
RegSetValueExW
RegCreateKeyExW
GetFileSecurityW
SetFileSecurityW
RegQueryValueW
RegOpenKeyW
RegEnumKeyW
RegDeleteKeyW
RegOpenKeyExW
RegQueryValueExW
RegCloseKey
RegCreateKeyW

shell32

DragFinish
DragQueryFileW
ExtractIconW
SHGetFileInfoW
DragAcceptFiles

shlwapi

PathFindFileNameW
PathRemoveFileSpecW
PathStripToRootW
PathFindExtensionW
PathIsUNCW

ole32

CoTaskMemFree
CoInitializeEx
CoUninitialize
CoCreateInstance

oleaut32

SysAllocStringLen
VariantClear
VariantChangeType
VariantInit

Sections

.text
Size: 583KB - Virtual size: 583KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 149KB - Virtual size: 148KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 17KB - Virtual size: 40KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 42KB - Virtual size: 42KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 75KB - Virtual size: 74KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 19KB - Virtual size: 19KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

2bf92df946b0acca7564b5a340e76257

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

gdi32

comdlg32

advapi32

shell32

shlwapi

ole32

oleaut32

Sections

.text Size: 583KB - Virtual size: 583KB

.rdata Size: 149KB - Virtual size: 148KB

.data Size: 17KB - Virtual size: 40KB

.pdata Size: 42KB - Virtual size: 42KB

.rsrc Size: 75KB - Virtual size: 74KB

.reloc Size: 19KB - Virtual size: 19KB

.text
Size: 583KB - Virtual size: 583KB

.rdata
Size: 149KB - Virtual size: 148KB

.data
Size: 17KB - Virtual size: 40KB

.pdata
Size: 42KB - Virtual size: 42KB

.rsrc
Size: 75KB - Virtual size: 74KB

.reloc
Size: 19KB - Virtual size: 19KB