blackmoon | DKCat[.]exe

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General

Target

DKCat.exe
Size

17.2MB
MD5

7192bbfd6821694aef377cf7d21846f6
SHA1

470f520859048e63cfde70206e47266e2d9f5aeb
SHA256

ef7520c0e507c804fc5dd365395d118c342bda99efbea0b9a9988847c22e3476
SHA512

c4d85f99671094e866f83c465cc2fc1923d6cd7fa1962f3431471a8cf1ce13cbb51886ae0b7b7320c4e2fae77da29586d076ae8e32b59d3167b5ee4cdb1bc511
SSDEEP

393216:o+XjgI884sQiasvvLNOmYg3r3d51AyzmkiFmRuEj:o+XjS8XhasvvLNfpbN5aYgsgA

Score

10^/10

blackmoon

Malware Config

Signatures

Blackmoon family
blackmoon
Detect Blackmoon payload 1 IoCs

Processes:

resource yara_rule

sample family_blackmoon
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.

Processes:

resource

DKCat.exe

resource	yara_rule
sample	family_blackmoon

resource
DKCat.exe

Files

DKCat.exe
.exe windows x86

0b2d86174ed755be4993d5c3d3f47c2e

Headers

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE

Imports

kernel32

Process32First
Process32Next
CreateRemoteThread
GetExitCodeThread
Module32First
Module32Next
OpenThread
LeaveCriticalSection
CreateToolhelp32Snapshot
GetCurrentProcess
HeapCreate
ReadProcessMemory
VirtualQuery
SetWaitableTimer
CreateWaitableTimerA
GetNativeSystemInfo
TerminateThread
VirtualFreeEx
FreeLibrary
LoadLibraryExA
VirtualQueryEx
CreateFileA
DeviceIoControl
CreateProcessA
PeekNamedPipe
RtlMoveMemory
GetVersionExA
SetHandleCount
lstrlenW
lstrcpyA
InitializeCriticalSection
GetCurrentThreadId
SetProcessAffinityMask
EnterCriticalSection
DeleteCriticalSection
RtlZeroMemory
HeapAlloc
HeapFree
lstrcmpW
lstrcmpiW
GetProcessHeap
ExitProcess
HeapReAlloc
IsBadReadPtr
WriteFile
ReadFile
GetFileSize
DeleteFileA
LCMapStringA
GetTickCount
GetModuleFileNameA
GetUserDefaultLCID
lstrcpynA
GetDiskFreeSpaceExA
GetCurrentDirectoryA
SetFileAttributesA
GetLastError
SetCurrentDirectoryA
GetStartupInfoA
FindNextFileA
FindFirstFileA
FindClose
GetCommandLineA
LoadLibraryA
FlushFileBuffers
SetStdHandle
IsBadCodePtr
SetUnhandledExceptionFilter
GetStringTypeW
GetStringTypeA
GetOEMCP
GetVersion
RtlUnwind
InterlockedDecrement
InterlockedIncrement
TerminateProcess
TlsSetValue
TlsAlloc
TlsFree
SetLastError
GetProcAddress
GetWindowsDirectoryA
WideCharToMultiByte
lstrcpynW
CloseHandle
OpenProcess
IsWow64Process
GetModuleHandleA
lstrcpyn
VirtualAllocEx
WriteProcessMemory
VirtualProtect
DuplicateHandle
CopyFileA
GetTempFileNameA
GetSystemDirectoryA
GetTempPathA
MultiByteToWideChar
TlsGetValue
WaitForSingleObject
GetStdHandle
GetFileType
FreeEnvironmentStringsA
FreeEnvironmentStringsW
GetEnvironmentStrings
GetEnvironmentStringsW
GetEnvironmentVariableA
HeapDestroy
VirtualFree
VirtualAlloc
IsBadWritePtr
RaiseException
SetFilePointer
LCMapStringW
GetCPInfo
GetACP
RaiseException
GetLocalTime
GetSystemTime
ExitThread
RtlUnwind
GetStartupInfoA
GetOEMCP
GetCPInfo
GetProcessVersion
SetErrorMode
GlobalFlags
GetCurrentThread
GetFileTime
LocalReAlloc
GlobalHandle
LocalAlloc
lstrcmpA
GlobalGetAtomNameA
GlobalAddAtomA
GlobalFindAtomA
GlobalDeleteAtom
lstrcmpiA
GetFileType
SetEnvironmentVariableA
HeapSize
SetStdHandle
UnhandledExceptionFilter
FreeEnvironmentStringsA
FreeEnvironmentStringsW
GetEnvironmentStrings
SetEndOfFile
UnlockFile
LockFile
FlushFileBuffers
DuplicateHandle
lstrcpynA
FileTimeToLocalFileTime
GetEnvironmentStringsW
SetHandleCount
GetStdHandle
GetEnvironmentVariableA
HeapDestroy
HeapCreate
VirtualFree
LCMapStringA
LCMapStringW
VirtualAlloc
IsBadWritePtr
GetStringTypeA
GetStringTypeW
SetUnhandledExceptionFilter
IsValidLocale
IsValidCodePage
EnumSystemLocalesA
CompareStringA
CompareStringW
IsBadReadPtr
GetLocaleInfoW
InterlockedDecrement
InterlockedIncrement
TlsGetValue
TlsSetValue
TlsFree
TlsAlloc
OpenEventA
OpenFileMappingA
WaitNamedPipeA
SetNamedPipeHandleState
GetACP
SuspendThread
ReleaseMutex
CreateMutexA
FileTimeToSystemTime
GetVersion
GetLocaleInfoA
GetTimeZoneInformation
SetLastError
GetSystemDirectoryA
InterlockedExchange
SetEnvironmentVariableW
IsBadCodePtr
GetWindowsDirectoryA
TerminateProcess
CloseHandle
WaitForSingleObject
CreateProcessA
GetTickCount
GetCommandLineA
MulDiv
GetDiskFreeSpaceA
GetProcAddress
GetModuleHandleA
GetVolumeInformationA
SetCurrentDirectoryA
GetCurrentDirectoryA
DeleteFileA
GetFileAttributesA
FindClose
FindFirstFileA
GetTempPathA
GlobalUnlock
GlobalLock
GlobalAlloc
ExpandEnvironmentStringsA
Sleep
CreateEventA
CreateThread
GetPrivateProfileStringA
WritePrivateProfileStringA
GetVersionExA
GetLastError
LoadLibraryA
FreeLibrary
GetFullPathNameA
GetUserDefaultLCID
HeapAlloc
GetProcessHeap
HeapReAlloc
HeapFree
GlobalReAlloc
GetDriveTypeA
FindNextFileA
lstrcpyA
WinExec
lstrlenA
lstrcatA
InitializeCriticalSection
DeleteCriticalSection
GlobalFree
GlobalSize
ExitProcess
GetCurrentThreadId
MultiByteToWideChar
WideCharToMultiByte
GetModuleFileNameA
RemoveDirectoryA
lstrlenW
ReadFile
LockResource
LoadResource
FindResourceA
SetEvent
CreateFileA
WaitForMultipleObjects
WriteFile
GetProfileStringA
LeaveCriticalSection
EnterCriticalSection
ReleaseSemaphore
ResumeThread
CreateSemaphoreA
TerminateThread
MapViewOfFile
CreateFileMappingA
LocalFree
UnmapViewOfFile
FormatMessageA
SetFilePointer
GetFileSize
GetCurrentProcess

shlwapi

PathFileExistsA
PathFindExtensionA
StrToIntW
StrToIntExW
StrToIntExA
PathFindFileNameA

ws2_32

WSACleanup
htons
WSAStartup
WSAAsyncSelect
htons
bind
socket
setsockopt
recvfrom
ioctlsocket
connect
recv
closesocket
getpeername
send
select
gethostname
WSACleanup
WSAStartup
gethostbyname
inet_ntoa
accept
WSAGetLastError
__WSAFDIsSet
ntohs
getsockname
shutdown
ntohl
inet_addr
listen

version

VerQueryValueA
GetFileVersionInfoA
GetFileVersionInfoSizeA

user32

GetWindowThreadProcessId
GetWindowTextA
GetClassNameA
MsgWaitForMultipleObjects
SendMessageA
RegisterWindowMessageA
GetParent
IsWindowVisible
CallWindowProcA
PeekMessageA
TranslateMessage
DispatchMessageA
wsprintfA
GetMessageA
EnumWindows
ShowWindow
MessageBoxA
FindWindowA
ClientToScreen
GetForegroundWindow
GetCursorPos
WindowFromPoint
GetDlgItem
GetAncestor
LoadCursorA
SetCursorPos
SetActiveWindow
GetSysColor
SetWindowLongA
GetWindowLongA
RedrawWindow
EnableWindow
IsWindowVisible
OffsetRect
PtInRect
DestroyIcon
IntersectRect
InflateRect
SetRect
SetScrollPos
SetScrollRange
GetScrollRange
SetCapture
GetCapture
ReleaseCapture
SetTimer
KillTimer
WinHelpA
LoadBitmapA
CopyRect
ChildWindowFromPointEx
ScreenToClient
GetMessagePos
SetWindowRgn
DestroyAcceleratorTable
GetWindow
GetActiveWindow
SetFocus
IsIconic
PeekMessageA
SetMenu
GetMenu
DeleteMenu
GetSystemMenu
DefWindowProcA
GetClassInfoA
IsZoomed
PostQuitMessage
CopyAcceleratorTableA
UnregisterClassA
TranslateAcceleratorA
IsWindowEnabled
ShowWindow
SystemParametersInfoA
LoadImageA
EnumDisplaySettingsA
ClientToScreen
SetCursor
EnableMenuItem
GetSubMenu
GetDlgCtrlID
CreateAcceleratorTableA
CreateMenu
ModifyMenuA
AppendMenuA
CreatePopupMenu
GetFocus
CreateIconFromResource
CreateIconFromResourceEx
RegisterClipboardFormatA
SetRectEmpty
DispatchMessageA
GetMessageA
WindowFromPoint
DrawFocusRect
DrawEdge
DrawFrameControl
TranslateMessage
LoadIconA
GetDesktopWindow
GetClassNameA
GetDlgItem
GetWindowTextA
GetForegroundWindow
SetWindowTextA
GetParent
GetTopWindow
PostMessageA
IsWindow
SetParent
DestroyCursor
SendMessageA
SetWindowPos
MessageBoxA
GetCursorPos
GetSystemMetrics
GetDC
FillRect
IsRectEmpty
GetWindowTextLengthA
CharUpperA
GetWindowDC
BeginPaint
EndPaint
TabbedTextOutA
DrawTextA
GrayStringA
DestroyWindow
CreateDialogIndirectParamA
EndDialog
GetNextDlgTabItem
GetWindowPlacement
RegisterWindowMessageA
GetLastActivePopup
GetMessageTime
RemovePropA
CallWindowProcA
GetPropA
UnhookWindowsHookEx
SetPropA
GetClassLongA
CallNextHookEx
SetWindowsHookExA
CreateWindowExA
GetMenuItemID
GetMenuItemCount
RegisterClassA
GetScrollPos
AdjustWindowRectEx
MapWindowPoints
SendDlgItemMessageA
ScrollWindowEx
IsDialogMessageA
MoveWindow
CheckMenuItem
SetMenuItemBitmaps
GetMenuState
GetMenuCheckMarkDimensions
LoadStringA
GetSysColorBrush
ReleaseDC
EmptyClipboard
SetClipboardData
OpenClipboard
GetClipboardData
CloseClipboard
wsprintfA
WaitForInputIdle
IsChild
DestroyMenu
SetForegroundWindow
GetWindowRect
EqualRect
UpdateWindow
ValidateRect
InvalidateRect
GetClientRect
DrawIconEx
GetKeyState

advapi32

RegCloseKey
DeleteService
ControlService
CloseServiceHandle
OpenServiceA
StartServiceA
RegQueryValueExA
CreateServiceA
OpenSCManagerA
AdjustTokenPrivileges
LookupPrivilegeValueA
OpenProcessToken
CryptGetHashParam
CryptHashData
RegOpenKeyA
RegQueryValueA
RegCreateKeyA
RegSetValueExA
RegOpenKeyExA
RegQueryValueExA
RegCloseKey
RegEnumValueA
RegCreateKeyExA

shell32

SHGetSpecialFolderPathA
ShellExecuteA
SHGetSpecialFolderPathA
Shell_NotifyIconA

ole32

CLSIDFromString
OleRun
CoUninitialize
CoInitialize
CoCreateInstance
OleInitialize
OleUninitialize
CLSIDFromString
CoCreateInstance
OleRun
CLSIDFromProgID
CLSIDFromProgID

psapi

GetModuleInformation

oleaut32

VariantClear
SysAllocString
SafeArrayCreate
RegisterTypeLi
SafeArrayDestroy
VariantChangeType
SafeArrayGetLBound
LHashValOfNameSys
LoadTypeLi
VariantInit
SafeArrayGetDim
VariantCopy
SafeArrayAllocData
SafeArrayAllocDescriptor
SafeArrayGetUBound
VarR8FromBool
VarR8FromCy
SysFreeString
SafeArrayGetElemsize
SafeArrayUnaccessData
SafeArrayAccessData
VariantCopy
VariantClear
VariantChangeType
SafeArrayGetUBound
UnRegisterTypeLi
SafeArrayGetDim
SafeArrayUnaccessData
SafeArrayAccessData
SafeArrayGetElement
VariantCopyInd
VariantInit
SysAllocString
SafeArrayDestroy
SafeArrayCreate
SafeArrayPutElement
RegisterTypeLi
LoadTypeLi
SafeArrayGetLBound
LHashValOfNameSys

winmm

midiStreamOut
midiStreamStop
midiOutReset
midiStreamClose
waveOutPrepareHeader
midiOutPrepareHeader
waveOutRestart
waveOutUnprepareHeader
midiStreamRestart
waveOutWrite
waveOutPause
waveOutReset
waveOutClose
waveOutGetNumDevs
waveOutOpen
midiOutUnprepareHeader
midiStreamOpen
midiStreamProperty

rasapi32

RasHangUpA
RasGetConnectStatusA

gdi32

LineTo
MoveToEx
ExcludeClipRect
GetClipBox
ScaleWindowExtEx
SetWindowExtEx
SetWindowOrgEx
ScaleViewportExtEx
SetViewportExtEx
OffsetViewportOrgEx
SetViewportOrgEx
SetMapMode
SetTextColor
SetROP2
SetPolyFillMode
SetBkMode
RestoreDC
SaveDC
PtVisible
RectVisible
TextOutA
ExtTextOutA
Escape
GetTextMetricsA
SetBkColor
CreateRectRgnIndirect
SetStretchBltMode
GetClipRgn
CreatePolygonRgn
SelectClipRgn
DeleteObject
GetSystemPaletteEntries
CreatePalette
StretchBlt
SelectPalette
RealizePalette
GetDIBits
GetWindowExtEx
GetViewportOrgEx
GetWindowOrgEx
BeginPath
EndPath
PathToRegion
CreateEllipticRgn
CreateRoundRectRgn
GetTextColor
GetBkMode
GetBkColor
GetROP2
GetStretchBltMode
GetPolyFillMode
CreateCompatibleBitmap
CreateDCA
CreateBitmap
SelectObject
CreatePen
PatBlt
CombineRgn
CreateRectRgn
FillRgn
CreateSolidBrush
CreateFontIndirectA
GetStockObject
GetObjectA
EndPage
EndDoc
DeleteDC
GetDeviceCaps
GetTextExtentPoint32A
RoundRect
ExtSelectClipRgn
GetViewportExtEx
CreateDIBitmap
GetCurrentObject
DPtoLP
LPtoDP
Rectangle
Ellipse
CreateCompatibleDC
BitBlt
StartPage
StartDocA

winspool.drv

OpenPrinterA
DocumentPropertiesA
ClosePrinter

comctl32

ImageList_Destroy
ord17

wsock32

getservbyname

wininet

InternetCloseHandle

comdlg32

GetSaveFileNameA
ChooseColorA
GetFileTitleA
GetOpenFileNameA
ChooseFontA

Sections

.text
Size: 3.6MB - Virtual size: 3.6MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 11.2MB - Virtual size: 11.2MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 2.3MB - Virtual size: 2.7MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 28KB - Virtual size: 24KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

0b2d86174ed755be4993d5c3d3f47c2e

Headers

File Characteristics

Imports

kernel32

shlwapi

ws2_32

version

user32

advapi32

shell32

ole32

psapi

oleaut32

winmm

rasapi32

gdi32

winspool.drv

comctl32

wsock32

wininet

comdlg32

Sections

.text Size: 3.6MB - Virtual size: 3.6MB

.rdata Size: 11.2MB - Virtual size: 11.2MB

.data Size: 2.3MB - Virtual size: 2.7MB

.rsrc Size: 28KB - Virtual size: 24KB

.text
Size: 3.6MB - Virtual size: 3.6MB

.rdata
Size: 11.2MB - Virtual size: 11.2MB

.data
Size: 2.3MB - Virtual size: 2.7MB

.rsrc
Size: 28KB - Virtual size: 24KB