Static task
static1
Behavioral task
behavioral1
Sample
decrypt.exe
Resource
win7-20230703-en
General
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Target
decrypt.zip.zip
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Size
1.9MB
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MD5
76dfc1ddec165a5c21496ba037f41a1d
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SHA1
ea7ebecbfcd3a68e65c9e9f0d913eb5da1f11e0d
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SHA256
18439bc726c91a7e07d22ff4f8f18d4ab79f2a7ddc4c0cde365eae7978925403
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SHA512
5eaa5928b7d7d2a5cafb6759af555c8819feb514a51e0bc7f1fa4f3071d831b56b2382695dd6df45e12ffab63c3bb1375fc6af88463b81bc9dc4efd65434fb92
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SSDEEP
49152:Qnwc5xDJ7ji6qy+35df7qItXW9k0tFkqsKqvtf8Vk91f:QnwCxDJ7jic+35RHZYLspxf
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource unpack002/decrypt.exe
Files
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decrypt.zip.zip.zip
Password: infected
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decrypt.zip.zip
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decrypt.exe.exe windows x86
361ff686e401c0e0d7703781953b88e2
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Imports
kernel32
SetFilePointerEx
GetTimeZoneInformation
ReadConsoleW
OutputDebugStringW
GetDateFormatW
LCMapStringW
IsValidLocale
EnumSystemLocalesW
WriteConsoleW
SetEnvironmentVariableA
UnregisterWaitEx
QueryDepthSList
InterlockedFlushSList
InterlockedPushEntrySList
InterlockedPopEntrySList
InitializeSListHead
ReleaseSemaphore
GetOEMCP
GetConsoleMode
UnregisterWait
RegisterWaitForSingleObject
SetThreadAffinityMask
GetProcessAffinityMask
GetNumaHighestNodeNumber
DeleteTimerQueueTimer
ChangeTimerQueueTimer
CreateTimerQueueTimer
GetLogicalProcessorInformation
GetThreadPriority
SwitchToThread
SignalObjectAndWait
WaitForSingleObjectEx
CreateTimerQueue
GetACP
IsValidCodePage
GetThreadTimes
QueryPerformanceFrequency
GetConsoleCP
GetStringTypeW
FreeLibraryAndExitThread
CreateSemaphoreW
TerminateProcess
SetUnhandledExceptionFilter
UnhandledExceptionFilter
FreeEnvironmentStringsW
GetEnvironmentStringsW
QueryPerformanceCounter
GetStartupInfoW
GetStdHandle
GetFileType
SetStdHandle
GetSystemTimeAsFileTime
VirtualQuery
GetSystemInfo
HeapQueryInformation
IsProcessorFeaturePresent
IsDebuggerPresent
ExitThread
AreFileApisANSI
GetModuleHandleExW
ExitProcess
RtlUnwind
GetCPInfo
GetUserDefaultLCID
FindResourceExW
GetWindowsDirectoryW
SearchPathW
GetProfileIntW
VirtualProtect
GetTempPathW
GetTempFileNameW
GetTickCount
GetFileTime
GetFileSizeEx
GetFileAttributesExW
FileTimeToLocalFileTime
lstrcmpiW
GetCurrentProcess
DuplicateHandle
UnlockFile
LockFile
GetVolumeInformationW
GetFullPathNameW
FlushFileBuffers
FindClose
GetFileAttributesW
VerifyVersionInfoW
VerSetConditionMask
GlobalFlags
GetUserDefaultUILanguage
GetSystemDefaultUILanguage
GetLocaleInfoW
CompareStringW
GetCurrentDirectoryW
LocalReAlloc
GlobalHandle
GlobalReAlloc
TlsFree
TlsSetValue
TlsGetValue
TlsAlloc
InitializeCriticalSection
GetThreadLocale
FileTimeToSystemTime
GlobalGetAtomNameW
GlobalFindAtomW
GetSystemDirectoryW
EncodePointer
GlobalAddAtomW
WritePrivateProfileStringW
GetPrivateProfileStringW
GetPrivateProfileIntW
ResumeThread
SetThreadPriority
CreateEventW
SetEvent
GetCurrentProcessId
LoadLibraryW
LoadLibraryA
GetProcAddress
GetModuleHandleW
GetModuleHandleA
OutputDebugStringA
lstrcpyW
FreeResource
lstrcmpW
lstrcmpA
GlobalDeleteAtom
LoadLibraryExW
GetModuleFileNameW
FreeLibrary
GetVersionExW
GetCurrentThreadId
GetCurrentThread
SetLastError
CopyFileW
MulDiv
GlobalUnlock
GlobalLock
GlobalSize
WaitForSingleObject
CreateThread
GetComputerNameW
DeleteCriticalSection
DecodePointer
EnterCriticalSection
HeapSize
RaiseException
LeaveCriticalSection
InitializeCriticalSectionAndSpinCount
GetProcessHeap
HeapFree
HeapAlloc
HeapReAlloc
GetCommandLineW
LocalFree
lstrcpynW
LocalSize
lstrlenW
LocalAlloc
FormatMessageW
GetLastError
MultiByteToWideChar
WideCharToMultiByte
Sleep
GetTimeFormatW
GetDriveTypeA
SetErrorMode
GetLogicalDrives
FindNextFileW
FindFirstFileW
DeleteFileW
VirtualFree
WriteFile
SetEndOfFile
ReadFile
SetFilePointer
VirtualAlloc
CloseHandle
GetFileSize
CreateFileW
FindResourceW
LoadResource
LockResource
SizeofResource
GlobalFree
GlobalAlloc
MoveFileW
lstrlenA
user32
DeleteMenu
SystemParametersInfoW
CopyImage
WindowFromPoint
ReleaseCapture
SetCapture
WaitMessage
LoadCursorW
SendDlgItemMessageA
IsDialogMessageW
SetWindowTextW
CheckDlgButton
MoveWindow
ShowWindow
GetMonitorInfoW
MonitorFromWindow
WinHelpW
GetScrollInfo
SetScrollInfo
LoadIconW
GetTopWindow
GetClassLongW
SetWindowLongW
EqualRect
AdjustWindowRectEx
GetWindowTextLengthW
GetWindowTextW
RemovePropW
GetPropW
SetPropW
ShowScrollBar
GetScrollRange
SetScrollRange
GetScrollPos
SetScrollPos
ScrollWindow
SetForegroundWindow
GetForegroundWindow
TrackPopupMenu
SetMenu
GetMenu
GetCapture
SetFocus
GetDlgCtrlID
EndDeferWindowPos
DeferWindowPos
BeginDeferWindowPos
SetWindowPlacement
GetWindowPlacement
IsChild
CreateWindowExW
GetClassInfoExW
GetClassInfoW
RegisterClassW
CallWindowProcW
DefWindowProcW
GetMessageTime
GetMessagePos
GetClassNameW
InvalidateRect
UpdateWindow
SetCursor
ShowOwnedPopups
ValidateRect
RealChildWindowFromPoint
TranslateMessage
GetMessageW
LoadBitmapW
SetMenuItemInfoW
SetParent
SetMenuItemBitmaps
EnableMenuItem
CheckMenuItem
CallNextHookEx
UnhookWindowsHookEx
SetWindowsHookExW
PtInRect
GetCursorPos
ScreenToClient
ClientToScreen
EndPaint
BeginPaint
GetWindowDC
TabbedTextOutW
GrayStringW
DrawTextExW
DrawTextW
GetLastActivePopup
GetWindowThreadProcessId
LoadMenuW
CopyRect
MapVirtualKeyW
MonitorFromPoint
OpenClipboard
CloseClipboard
SendMessageW
PeekMessageW
DispatchMessageW
MessageBoxW
EnableWindow
GetKeyNameTextW
GetDesktopWindow
GetWindowLongW
SetActiveWindow
IsWindowEnabled
GetActiveWindow
GetNextDlgTabItem
GetDlgItem
EndDialog
CreateDialogIndirectParamW
DestroyWindow
IsWindow
DrawIconEx
IsRectEmpty
OffsetRect
InflateRect
FillRect
DrawFocusRect
GetSysColorBrush
GetSysColor
MapWindowPoints
SetClipboardData
EmptyClipboard
DestroyIcon
LoadImageW
TrackMouseEvent
IsIconic
IsZoomed
CharUpperW
GetAsyncKeyState
GetSystemMenu
NotifyWinEvent
SetCursorPos
IsMenu
UnionRect
BringWindowToTop
RedrawWindow
SetWindowRgn
SetTimer
KillTimer
CharNextW
CopyAcceleratorTableW
InvalidateRgn
SetRect
IntersectRect
GetNextDlgGroupItem
MessageBeep
SetLayeredWindowAttributes
SetRectEmpty
GetKeyState
EnumDisplayMonitors
GetWindowRect
GetClientRect
GetDC
ReleaseDC
UnregisterClassW
PostThreadMessageW
GetMenuStringW
GetMenuState
GetSubMenu
GetMenuItemID
GetMenuItemCount
InsertMenuW
AppendMenuW
RemoveMenu
PostMessageW
PostQuitMessage
SetWindowPos
SetWindowContextHelpId
GetParent
GetWindow
MapDialogRect
RegisterWindowMessageW
DrawEdge
DrawFrameControl
IsWindowVisible
GetFocus
GetSystemMetrics
DrawStateW
CreatePopupMenu
LockWindowUpdate
DestroyMenu
EnableScrollBar
GetDoubleClickTime
GetIconInfo
CopyIcon
GetMenuItemInfoW
GetMenuDefaultItem
DrawIcon
GetWindowRgn
SetMenuDefaultItem
CreateMenu
InvertRect
HideCaret
GetComboBoxInfo
TranslateMDISysAccel
DefMDIChildProcW
DefFrameProcW
DrawMenuBar
MapVirtualKeyExW
IsCharLowerW
IsClipboardFormatAvailable
FrameRect
CharUpperBuffW
SubtractRect
CreateAcceleratorTableW
GetKeyboardState
GetKeyboardLayout
ToUnicodeEx
RegisterClipboardFormatW
ReuseDDElParam
UnpackDDElParam
InsertMenuItemW
TranslateAcceleratorW
LoadAcceleratorsW
UpdateLayeredWindow
GetUpdateRect
SetClassLongW
DestroyAcceleratorTable
ModifyMenuW
GetMenuCheckMarkDimensions
DestroyCursor
gdi32
DeleteObject
Escape
ExcludeClipRect
GetClipBox
GetObjectType
GetPixel
GetStockObject
GetViewportExtEx
GetWindowExtEx
IntersectClipRect
LineTo
PtVisible
RectVisible
RestoreDC
SaveDC
SelectClipRgn
ExtSelectClipRgn
SelectObject
SelectPalette
SetBkColor
SetBkMode
SetMapMode
SetLayout
GetLayout
SetPolyFillMode
SetROP2
SetTextColor
SetTextAlign
GetObjectW
MoveToEx
TextOutW
SetViewportExtEx
SetViewportOrgEx
SetWindowExtEx
SetWindowOrgEx
OffsetWindowOrgEx
ScaleViewportExtEx
ScaleWindowExtEx
GetRgnBox
CreateFontIndirectW
GetMapMode
SetRectRgn
DPtoLP
CreateCompatibleBitmap
CreatePatternBrush
EnumFontFamiliesW
GetTextCharsetInfo
RealizePalette
SetPixel
StretchBlt
CreateDIBSection
SetDIBColorTable
CreateRoundRectRgn
Rectangle
OffsetRgn
RoundRect
CreatePalette
GetPaletteEntries
GetNearestPaletteIndex
GetSystemPaletteEntries
EnumFontFamiliesExW
ExtFloodFill
SetPaletteEntries
FillRgn
FrameRgn
GetBoundsRect
PtInRegion
GetViewportOrgEx
LPtoDP
GetWindowOrgEx
SetPixelV
GetTextFaceW
CreateCompatibleDC
CreateBitmap
BitBlt
GetTextMetricsW
Polyline
Polygon
CreatePolygonRgn
ExtTextOutW
PatBlt
GetTextExtentPoint32W
GetTextColor
GetBkColor
Ellipse
CreateSolidBrush
CreateRectRgnIndirect
CreateRectRgn
CreateHatchBrush
CreateEllipticRgn
CombineRgn
GetDeviceCaps
CreateDCW
CreateDIBitmap
CreatePen
OffsetViewportOrgEx
DeleteDC
CopyMetaFileW
msimg32
TransparentBlt
AlphaBlend
winspool.drv
OpenPrinterW
DocumentPropertiesW
ClosePrinter
advapi32
CryptGenRandom
RegEnumKeyExW
RegEnumValueW
RegQueryValueW
RegEnumKeyW
RegSetValueExW
RegDeleteValueW
RegDeleteKeyW
RegCreateKeyExW
CryptReleaseContext
CryptDestroyHash
CryptGetHashParam
CryptHashData
CryptCreateHash
CryptAcquireContextW
RegCloseKey
RegQueryValueExW
RegOpenKeyExW
CryptAcquireContextA
shell32
DragQueryFileW
SHGetFileInfoW
SHAppBarMessage
SHGetDesktopFolder
SHBrowseForFolderW
SHGetSpecialFolderLocation
SHGetPathFromIDListW
SHGetMalloc
CommandLineToArgvW
DragFinish
ShellExecuteW
comctl32
InitCommonControlsEx
shlwapi
PathStripToRootW
PathIsUNCW
PathFindFileNameW
PathCompactPathW
StrTrimW
PathFileExistsA
PathFindExtensionW
PathRemoveExtensionW
PathAppendW
PathRemoveFileSpecW
PathFileExistsW
StrFormatKBSizeW
uxtheme
GetWindowTheme
GetThemeSysColor
IsThemeBackgroundPartiallyTransparent
GetThemePartSize
OpenThemeData
CloseThemeData
DrawThemeBackground
GetThemeColor
GetCurrentThemeName
IsAppThemed
DrawThemeText
DrawThemeParentBackground
ole32
OleInitialize
CoFreeUnusedLibraries
CreateStreamOnHGlobal
CreateILockBytesOnHGlobal
StgOpenStorageOnILockBytes
StgCreateDocfileOnILockBytes
OleUninitialize
OleFlushClipboard
OleIsCurrentClipboard
DoDragDrop
OleGetClipboard
CoLockObjectExternal
RegisterDragDrop
RevokeDragDrop
OleLockRunning
CoRevokeClassObject
CoRegisterMessageFilter
OleCreateMenuDescriptor
OleDestroyMenuDescriptor
OleTranslateAccelerator
IsAccelerator
CoGetClassObject
CoDisconnectObject
CoInitializeEx
CoInitialize
CoCreateInstance
CLSIDFromProgID
CLSIDFromString
CoCreateGuid
CoUninitialize
ReleaseStgMedium
OleDuplicateData
CoTaskMemFree
CoTaskMemAlloc
oleaut32
VariantTimeToSystemTime
SafeArrayDestroy
VariantClear
SystemTimeToVariantTime
VariantCopy
VarBstrFromDate
LoadTypeLi
OleCreateFontIndirect
VariantInit
SysAllocStringLen
SysAllocString
SysStringLen
VariantChangeType
SysFreeString
oledlg
OleUIBusyW
gdiplus
GdipDrawImageRectI
GdipSetInterpolationMode
GdipCreateFromHDC
GdipCreateBitmapFromHBITMAP
GdipDrawImageI
GdipDeleteGraphics
GdipBitmapUnlockBits
GdipBitmapLockBits
GdipCreateBitmapFromScan0
GdipCreateBitmapFromStream
GdipGetImagePaletteSize
GdipGetImagePalette
GdipGetImagePixelFormat
GdipGetImageHeight
GdipGetImageWidth
GdipGetImageGraphicsContext
GdipDisposeImage
GdipCloneImage
GdiplusStartup
GdipFree
GdipAlloc
GdiplusShutdown
winmm
PlaySoundW
timeGetTime
mpr
WNetEnumResourceW
WNetCloseEnum
WNetOpenEnumW
oleacc
AccessibleObjectFromWindow
LresultFromObject
CreateStdAccessibleObject
imm32
ImmGetContext
ImmGetOpenStatus
ImmReleaseContext
Sections
.text Size: 1.8MB - Virtual size: 1.8MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 430KB - Virtual size: 429KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 42KB - Virtual size: 77KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 1.3MB - Virtual size: 1.3MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 143KB - Virtual size: 143KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ