blk1[.]exe | Triage

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General

Target

blk1.exe
Size

2.8MB
MD5

3a2c81cc022ff2e2b9064b3426c598f2
SHA1

073d9e72cb8add88351dbbd2c816f32b0497c3ed
SHA256

385571fd3bc9ff53d3e20c4fb49098953f61fb15f396c9f0f192f6a9a460acfa
SHA512

3440a471a05939119cd995336d7e9a909b9c15f321a34f474dcce352afa81370b80736ca539710fbf119e35dcf78f703b696d987eb27620adc9950a75587aac3
SSDEEP

49152:YwUkbIsk0Gzxe27+9z/AhL6cnMQtgS0w4GE0TEj:fUksPzxe4+CLFgm4AT

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
blk1.exe

Files

blk1.exe
.exe windows:4 windows x64 arch:x64

31e377fe0c74f6ea764074086081f4e3

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
IMAGE_FILE_DEBUG_STRIPPED

Imports

kernel32

GetStdHandle
GetConsoleMode
TlsGetValue
GetLastError
SetLastError
RaiseException
GetTickCount
ExitProcess
GetStartupInfoA
GetCommandLineA
GetCurrentProcessId
GetCurrentThreadId
GetCurrentProcess
ReadProcessMemory
GetModuleFileNameA
GetModuleHandleA
WriteFile
ReadFile
CloseHandle
SetFilePointer
SetEndOfFile
GetSystemInfo
LoadLibraryW
LoadLibraryA
GetProcAddress
FreeLibrary
FormatMessageW
CreateFileW
GetFileAttributesW
GetCurrentDirectoryW
GetFullPathNameW
GetConsoleOutputCP
GetOEMCP
GetProcessHeap
HeapAlloc
HeapFree
TlsAlloc
TlsSetValue
CreateThread
ExitThread
LocalAlloc
LocalFree
Sleep
SuspendThread
ResumeThread
TerminateThread
WaitForSingleObject
SetThreadPriority
GetThreadPriority
GetCurrentThread
OpenThread
IsDebuggerPresent
CreateEventA
ResetEvent
SetEvent
InitializeCriticalSection
DeleteCriticalSection
EnterCriticalSection
LeaveCriticalSection
TryEnterCriticalSection
GetEnvironmentStringsW
FreeEnvironmentStringsW
MultiByteToWideChar
WideCharToMultiByte
GetACP
GetConsoleCP
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
RtlUnwindEx
EnumResourceTypesA
EnumResourceNamesA
EnumResourceLanguagesA
FindResourceA
FindResourceExA
LoadResource
SizeofResource
LockResource
FreeResource
FormatMessageA
GlobalAddAtomA
GetWindowsDirectoryA
GetVersionExA
CompareStringA
GetLocaleInfoA
GetDateFormatA
EnumCalendarInfoA
GetModuleFileNameW
GetCommandLineW
FindNextFileW
CompareStringW
GetLocaleInfoW
GetDateFormatW
FindFirstFileExW
GlobalAlloc
GlobalReAlloc
GlobalSize
GlobalLock
GlobalUnlock
GetExitCodeProcess
GlobalDeleteAtom
DeviceIoControl
FindClose
MulDiv
GetLocalTime
FileTimeToLocalFileTime
FileTimeToDosDateTime
PeekNamedPipe
GetCPInfo
GetThreadLocale
SetThreadLocale
GetUserDefaultLCID

oleaut32

SysAllocStringLen
SysFreeString
SysReAllocStringLen
SafeArrayCreate
SafeArrayRedim
SafeArrayGetUBound
SafeArrayGetLBound
SafeArrayAccessData
SafeArrayUnaccessData
SafeArrayGetElement
SafeArrayPutElement
SafeArrayPtrOfIndex
VariantChangeTypeEx
VariantClear
VariantCopy
VariantInit

user32

MessageBoxA
CharUpperBuffW
CharLowerBuffW
SendMessageA
PostMessageA
DefWindowProcA
CallWindowProcA
RegisterClassA
UnregisterClassA
GetClassInfoA
CreateWindowExA
RegisterClipboardFormatA
GetClipboardFormatNameA
CharToOemA
CharUpperA
CharUpperBuffA
CharLowerA
CharLowerBuffA
GetMenuItemInfoA
SetPropA
GetPropA
RemovePropA
EnumPropsA
GetWindowLongA
SetWindowLongA
GetClassLongA
SetClassLongPtrA
GetClassNameA
LoadBitmapA
LoadCursorA
LoadIconA
LoadImageA
SystemParametersInfoA
DispatchMessageW
PeekMessageW
SendMessageW
DefWindowProcW
CallWindowProcW
RegisterClassW
UnregisterClassW
GetClassInfoW
CreateWindowExW
InsertMenuItemW
GetMenuItemInfoW
SetMenuItemInfoW
DrawTextW
DrawStateW
SetWindowTextW
GetWindowTextW
GetWindowTextLengthW
MessageBoxW
GetWindowLongPtrW
SetWindowLongPtrW
DefFrameProcW
DefMDIChildProcW
TranslateMessage
PostQuitMessage
GetDoubleClickTime
IsWindow
IsMenu
DestroyWindow
ShowWindow
ShowWindowAsync
ShowOwnedPopups
MoveWindow
SetWindowPos
GetWindowPlacement
SetWindowPlacement
BeginDeferWindowPos
DeferWindowPos
EndDeferWindowPos
IsWindowVisible
IsIconic
BringWindowToTop
IsZoomed
OpenClipboard
CloseClipboard
SetClipboardData
GetClipboardData
CountClipboardFormats
EnumClipboardFormats
EmptyClipboard
IsClipboardFormatAvailable
SetFocus
GetActiveWindow
GetFocus
GetKeyState
GetCapture
SetCapture
ReleaseCapture
MsgWaitForMultipleObjects
SetTimer
KillTimer
EnableWindow
IsWindowEnabled
GetSystemMetrics
GetMenu
SetMenu
DrawMenuBar
GetSystemMenu
CreateMenu
CreatePopupMenu
DestroyMenu
EnableMenuItem
GetSubMenu
GetMenuItemCount
RemoveMenu
DeleteMenu
GetMenuItemRect
UpdateWindow
SetActiveWindow
GetForegroundWindow
SetForegroundWindow
WindowFromDC
GetDC
GetDCEx
GetWindowDC
ReleaseDC
BeginPaint
EndPaint
GetUpdateRect
SetWindowRgn
InvalidateRect
InvalidateRgn
RedrawWindow
ScrollWindowEx
ShowScrollBar
EnableScrollBar
GetClientRect
GetWindowRect
AdjustWindowRectEx
MessageBeep
SetCursorPos
SetCursor
GetCursorPos
CreateCaret
DestroyCaret
HideCaret
ShowCaret
SetCaretPos
GetCaretPos
ClientToScreen
ScreenToClient
MapWindowPoints
WindowFromPoint
GetSysColor
GetSysColorBrush
SetSysColors
DrawFocusRect
FillRect
FrameRect
SetRect
InflateRect
IntersectRect
OffsetRect
GetDesktopWindow
GetParent
SetParent
EnumThreadWindows
GetTopWindow
GetWindowThreadProcessId
GetLastActivePopup
GetWindow
CallNextHookEx
DestroyCursor
DestroyIcon
CopyImage
CreateIconIndirect
GetIconInfo
SetScrollInfo
GetScrollInfo
TranslateMDISysAccel
DrawEdge
DrawFrameControl
TrackPopupMenuEx
ChildWindowFromPointEx
DrawIconEx
FlashWindowEx

gdi32

CreateFontIndirectA
EnumFontFamiliesA
GetCharABCWidthsA
GetTextExtentPointA
GetTextMetricsA
GetObjectA
ExtTextOutA
CreateFontIndirectW
EnumFontFamiliesExW
GetCharABCWidthsW
GetTextExtentPoint32W
GetTextExtentExPointW
GetObjectW
TextOutW
ExtTextOutW
GetRandomRgn
Arc
BitBlt
Chord
CombineRgn
CreateBitmap
CreateBrushIndirect
CreateCompatibleBitmap
CreateCompatibleDC
CreateDIBitmap
CreateEllipticRgn
CreatePen
CreatePenIndirect
CreatePatternBrush
CreateRectRgn
CreateRoundRectRgn
CreateSolidBrush
DeleteDC
DeleteObject
Ellipse
EqualRgn
ExcludeClipRect
ExtCreateRegion
ExtFloodFill
FillRgn
GetROP2
GetBkColor
GetBitmapBits
GetClipBox
GetClipRgn
GetCurrentObject
GetDeviceCaps
GetDIBits
GetMapMode
GetObjectType
GetPixel
GetRegionData
GetRgnBox
GetStockObject
GetTextAlign
GetTextColor
GetViewportExtEx
GetViewportOrgEx
GetWindowExtEx
GetWindowOrgEx
IntersectClipRect
LineTo
MaskBlt
OffsetRgn
PatBlt
Pie
PaintRgn
PtInRegion
RectInRegion
RectVisible
Rectangle
RestoreDC
RealizePalette
RoundRect
SaveDC
SelectClipRgn
ExtSelectClipRgn
SelectObject
SelectPalette
SetBkColor
SetBkMode
SetMapMode
SetPixel
SetPolyFillMode
StretchBlt
SetRectRgn
SetROP2
SetStretchBltMode
SetTextCharacterExtra
SetTextColor
SetTextAlign
CreateDIBSection
SetArcDirection
ExtCreatePen
MoveToEx
CreatePolygonRgn
DPtoLP
LPtoDP
Polygon
Polyline
PolyBezier
SetViewportExtEx
SetViewportOrgEx
SetWindowExtEx
SetWindowOrgEx
OffsetViewportOrgEx
SetBrushOrgEx
GetDCOrgEx

version

GetFileVersionInfoSizeA
GetFileVersionInfoA
VerQueryValueA

shell32

DragQueryFileA
DragQueryFileW
DragFinish
DragAcceptFiles

ole32

OleInitialize
OleUninitialize

comctl32

InitCommonControls
ImageList_Create
ImageList_Destroy
ImageList_GetImageCount
ImageList_SetImageCount
ImageList_Add
ImageList_Replace
ImageList_AddMasked
ImageList_DrawEx
ImageList_DrawIndirect
ImageList_Remove
ImageList_Copy
ImageList_BeginDrag
ImageList_EndDrag
ImageList_DragEnter
ImageList_DragLeave
ImageList_DragMove
ImageList_DragShowNolock
_TrackMouseEvent

Sections

.text
Size: 1.7MB - Virtual size: 1.7MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 131KB - Virtual size: 130KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rdata
Size: 710KB - Virtual size: 710KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.pdata
Size: 120KB - Virtual size: 119KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.bss
Size: - Virtual size: 27KB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.CRT
Size: 512B - Virtual size: 24B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.idata
Size: 15KB - Virtual size: 14KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 150KB - Virtual size: 149KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

Sharing

General

Malware Config

Signatures

Files

31e377fe0c74f6ea764074086081f4e3

Headers

File Characteristics

Imports

kernel32

oleaut32

user32

gdi32

version

shell32

ole32

comctl32

Sections

.text Size: 1.7MB - Virtual size: 1.7MB

.data Size: 131KB - Virtual size: 130KB

.rdata Size: 710KB - Virtual size: 710KB

.pdata Size: 120KB - Virtual size: 119KB

.bss Size: - Virtual size: 27KB

.CRT Size: 512B - Virtual size: 24B

.idata Size: 15KB - Virtual size: 14KB

.rsrc Size: 150KB - Virtual size: 149KB

.text
Size: 1.7MB - Virtual size: 1.7MB

.data
Size: 131KB - Virtual size: 130KB

.rdata
Size: 710KB - Virtual size: 710KB

.pdata
Size: 120KB - Virtual size: 119KB

.bss
Size: - Virtual size: 27KB

.CRT
Size: 512B - Virtual size: 24B

.idata
Size: 15KB - Virtual size: 14KB

.rsrc
Size: 150KB - Virtual size: 149KB