darkcomet | Loader[.]exe

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General

Target

Loader.exe
Size

2.2MB
MD5

503438b2096445ce42c1e2674dfe8a00
SHA1

361c70fdde5db742528b98c11844bc6c3a57c509
SHA256

c72c56173d33ed545fb241cd7716f472caeaf6d6a0665a7ea47b8f7cfc2825a4
SHA512

15110fc3cdb634a0e903409e234a298d0b0ae268849c1a0631639b8f51b181c6ebdd0020174eeec973c15cddcba7fa41086cc3bc553c44b267fe52618898f371
SSDEEP

49152:JQDgok309y68bIO5YbCsKm8uVxHTt+n/CknSDwAOV3R:JQU/768lY2mzEn/HH3R

Score

10^/10

guest16 darkcomet

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

23.27.245.112:443

Mutex

DC_MUTEX-5QM7EF3

Attributes

gencode
mYBun8KemGvU
install
false
offline_keylogger
true
persistence
false

Signatures

Darkcomet family
darkcomet
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.

Processes:

resource

Loader.exe

resource
Loader.exe

Files

Loader.exe
.exe windows:4 windows x86 arch:x86

e5b4359a3773764a372173074ae9b6bd

Headers

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_BYTES_REVERSED_LO
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_BYTES_REVERSED_HI

Imports

oleaut32

SysFreeString
SysReAllocStringLen
SysAllocStringLen
GetErrorInfo
GetActiveObject
SysFreeString
SafeArrayPtrOfIndex
SafeArrayGetUBound
SafeArrayGetLBound
SafeArrayCreate
VariantChangeType
VariantCopy
VariantClear
VariantInit

advapi32

RegQueryValueExA
RegOpenKeyExA
RegCloseKey
RegSetValueExA
RegQueryValueExA
RegQueryInfoKeyA
RegOpenKeyExA
RegOpenKeyA
RegFlushKey
RegEnumValueA
RegEnumKeyExA
RegDeleteValueA
RegDeleteKeyA
RegCreateKeyExA
RegCreateKeyA
RegCloseKey
OpenThreadToken
OpenProcessToken
LookupPrivilegeValueA
LookupPrivilegeNameA
LookupPrivilegeDisplayNameA
LookupAccountSidA
IsValidSid
GetUserNameA
GetTokenInformation
GetSidSubAuthorityCount
GetSidSubAuthority
GetSidIdentifierAuthority
GetCurrentHwProfileA
AdjustTokenPrivileges
StartServiceA
QueryServiceStatus
OpenServiceA
OpenSCManagerA
EnumServicesStatusA
DeleteService
CreateServiceA
ControlService
CloseServiceHandle

user32

GetKeyboardType
DestroyWindow
LoadStringA
MessageBoxA
CharNextA
CreateWindowExA
mouse_event
keybd_event
WindowFromPoint
WaitMessage
VkKeyScanA
UpdateWindow
UnregisterClassA
UnhookWindowsHookEx
TranslateMessage
TranslateMDISysAccel
TrackPopupMenu
ToAscii
SystemParametersInfoA
ShowWindow
ShowScrollBar
ShowOwnedPopups
SetWindowsHookExA
SetWindowTextA
SetWindowPos
SetWindowPlacement
SetWindowLongW
SetWindowLongA
SetTimer
SetScrollRange
SetScrollPos
SetScrollInfo
SetRect
SetPropA
SetParent
SetMenuItemInfoA
SetMenu
SetForegroundWindow
SetFocus
SetCursorPos
SetCursor
SetClipboardData
SetClassLongA
SetCapture
SetActiveWindow
SendMessageW
SendMessageA
ScrollWindow
ScreenToClient
RemovePropA
RemoveMenu
ReleaseDC
ReleaseCapture
RegisterWindowMessageA
RegisterClipboardFormatA
RegisterClassA
RedrawWindow
PtInRect
PostQuitMessage
PostMessageA
PeekMessageW
PeekMessageA
OpenClipboard
OffsetRect
OemToCharA
MsgWaitForMultipleObjectsEx
MsgWaitForMultipleObjects
MessageBoxA
MapWindowPoints
MapVirtualKeyA
LockWorkStation
LoadStringA
LoadKeyboardLayoutA
LoadIconA
LoadCursorA
LoadBitmapA
KillTimer
IsZoomed
IsWindowVisible
IsWindowUnicode
IsWindowEnabled
IsWindow
IsRectEmpty
IsIconic
IsDialogMessageW
IsDialogMessageA
IsClipboardFormatAvailable
IsChild
InvalidateRect
IntersectRect
InsertMenuItemA
InsertMenuA
InflateRect
GetWindowThreadProcessId
GetWindowTextLengthA
GetWindowTextA
GetWindowRect
GetWindowPlacement
GetWindowLongW
GetWindowLongA
GetWindowDC
GetTopWindow
GetSystemMetrics
GetSystemMenu
GetSysColorBrush
GetSysColor
GetSubMenu
GetScrollRange
GetScrollPos
GetScrollInfo
GetPropA
GetParent
GetWindow
GetMessagePos
GetMessageA
GetMenuStringA
GetMenuState
GetMenuItemInfoA
GetMenuItemID
GetMenuItemCount
GetMenu
GetLastInputInfo
GetLastActivePopup
GetKeyboardState
GetKeyboardLayoutNameA
GetKeyboardLayoutList
GetKeyboardLayout
GetKeyState
GetKeyNameTextA
GetIconInfo
GetForegroundWindow
GetFocus
GetDesktopWindow
GetDCEx
GetDC
GetCursorPos
GetCursor
GetClipboardData
GetClientRect
GetClassNameA
GetClassLongA
GetClassInfoA
GetCapture
GetActiveWindow
FrameRect
FindWindowExA
FindWindowA
FillRect
ExitWindowsEx
EqualRect
EnumWindows
EnumThreadWindows
EnumDisplayDevicesA
EnumClipboardFormats
EnumChildWindows
EndPaint
EnableWindow
EnableScrollBar
EnableMenuItem
EmptyClipboard
DrawTextA
DrawMenuBar
DrawIconEx
DrawIcon
DrawFrameControl
DrawEdge
DispatchMessageW
DispatchMessageA
DestroyWindow
DestroyMenu
DestroyIcon
DestroyCursor
DeleteMenu
DefWindowProcA
DefMDIChildProcA
DefFrameProcA
CreatePopupMenu
CreateMenu
CreateIcon
CloseClipboard
ClientToScreen
CheckMenuItem
CallWindowProcA
CallNextHookEx
BeginPaint
CharNextA
CharLowerBuffA
CharLowerA
CharUpperBuffA
CharToOemA
AdjustWindowRectEx
ActivateKeyboardLayout
EnumDisplayMonitors
GetMonitorInfoA

kernel32

GetACP
Sleep
VirtualFree
VirtualAlloc
GetTickCount
QueryPerformanceCounter
GetCurrentThreadId
InterlockedDecrement
InterlockedIncrement
VirtualQuery
WideCharToMultiByte
MultiByteToWideChar
lstrlenA
lstrcpynA
LoadLibraryExA
GetThreadLocale
GetStartupInfoA
GetProcAddress
GetModuleHandleA
GetModuleFileNameA
GetLocaleInfoA
GetLastError
GetCommandLineA
FreeLibrary
FindFirstFileA
FindClose
ExitProcess
ExitThread
CreateThread
CompareStringA
WriteFile
UnhandledExceptionFilter
SetFilePointer
SetEndOfFile
RtlUnwind
ReadFile
RaiseException
GetStdHandle
GetFileSize
GetFileType
CreateFileA
CloseHandle
TlsSetValue
TlsGetValue
LocalAlloc
GetModuleHandleA
lstrcpyA
WriteProcessMemory
WriteFile
WinExec
WaitForSingleObject
WaitForMultipleObjectsEx
VirtualQuery
VirtualProtectEx
VirtualProtect
VirtualFreeEx
VirtualFree
VirtualAllocEx
VirtualAlloc
VerLanguageNameA
UnmapViewOfFile
TerminateProcess
Sleep
SizeofResource
SetThreadPriority
SetThreadLocale
SetThreadContext
SetLastError
SetFileTime
SetFilePointer
SetFileAttributesA
SetEvent
SetErrorMode
SetEndOfFile
ResumeThread
ResetEvent
ReadProcessMemory
ReadFile
PeekNamedPipe
OpenProcess
MultiByteToWideChar
MulDiv
MoveFileA
MapViewOfFile
LockResource
LocalFileTimeToFileTime
LocalAlloc
LoadResource
LoadLibraryA
LeaveCriticalSection
IsBadReadPtr
InitializeCriticalSection
HeapFree
HeapAlloc
GlobalUnlock
GlobalMemoryStatus
GlobalLock
GlobalFree
GlobalFindAtomA
GlobalDeleteAtom
GlobalAlloc
GlobalAddAtomA
GetWindowsDirectoryA
GetVolumeInformationA
GetVersionExA
GetVersion
GetUserDefaultLangID
GetTickCount
GetThreadLocale
GetThreadContext
GetTempPathA
GetSystemPowerStatus
GetSystemDirectoryA
GetStdHandle
GetProcessHeap
GetProcAddress
GetModuleHandleA
GetModuleFileNameA
GetLocaleInfoA
GetLocalTime
GetLastError
GetFullPathNameA
GetFileTime
GetFileSize
GetFileAttributesA
GetExitCodeThread
GetExitCodeProcess
GetEnvironmentVariableA
GetDriveTypeA
GetDiskFreeSpaceA
GetDateFormatA
GetCurrentThreadId
GetCurrentThread
GetCurrentProcessId
GetCurrentProcess
GetComputerNameA
GetCPInfo
FreeResource
InterlockedIncrement
InterlockedExchange
InterlockedDecrement
FreeLibrary
FormatMessageA
FindResourceA
FindNextFileA
FindFirstFileA
FindClose
FileTimeToSystemTime
FileTimeToLocalFileTime
FileTimeToDosDateTime
ExitThread
ExitProcess
EnumResourceNamesA
EnumCalendarInfoA
EnterCriticalSection
DosDateTimeToFileTime
DeleteFileA
DeleteCriticalSection
CreateThread
CreateRemoteThread
CreateProcessA
CreatePipe
CreateMutexA
CreateFileMappingA
CreateFileA
CreateEventA
CreateDirectoryA
CopyFileA
CompareStringA
CloseHandle
Beep
Sleep

gdi32

UnrealizeObject
StretchBlt
SetWindowOrgEx
SetWinMetaFileBits
SetViewportOrgEx
SetTextColor
SetStretchBltMode
SetROP2
SetPixel
SetEnhMetaFileBits
SetDIBColorTable
SetBrushOrgEx
SetBkMode
SetBkColor
SelectPalette
SelectObject
SaveDC
RestoreDC
RectVisible
RealizePalette
PlayEnhMetaFile
PatBlt
MoveToEx
MaskBlt
LineTo
IntersectClipRect
GetWindowOrgEx
GetWinMetaFileBits
GetTextMetricsA
GetTextExtentPoint32A
GetSystemPaletteEntries
GetStockObject
GetRgnBox
GetPixel
GetPaletteEntries
GetObjectA
GetEnhMetaFilePaletteEntries
GetEnhMetaFileHeader
GetEnhMetaFileBits
GetDeviceCaps
GetDIBits
GetDIBColorTable
GetDCOrgEx
GetCurrentPositionEx
GetClipBox
GetBrushOrgEx
GetBitmapBits
GdiFlush
ExtTextOutA
ExcludeClipRect
DeleteObject
DeleteEnhMetaFile
DeleteDC
CreateSolidBrush
CreatePenIndirect
CreatePalette
CreateHalftonePalette
CreateFontIndirectA
CreateDIBitmap
CreateDIBSection
CreateDCA
CreateCompatibleDC
CreateCompatibleBitmap
CreateBrushIndirect
CreateBitmap
CopyEnhMetaFileA
BitBlt

version

VerQueryValueA
GetFileVersionInfoSizeA
GetFileVersionInfoA

wsock32

__WSAFDIsSet
WSACleanup
WSAStartup
WSAGetLastError
gethostname
getservbyname
gethostbyname
gethostbyaddr
socket
shutdown
sendto
send
select
recv
ntohs
listen
ioctlsocket
inet_ntoa
inet_addr
htons
getsockname
connect
closesocket
bind
accept

ole32

CoTaskMemFree
StringFromCLSID
CoTaskMemFree
CLSIDFromProgID
ProgIDFromCLSID
StringFromCLSID
CoCreateInstance
CoUninitialize
CoInitialize
IsEqualGUID

shell32

ShellExecuteExA
ShellExecuteA
SHGetFileInfoA
SHFileOperationA
DragQueryFileA
SHGetSpecialFolderLocation
SHGetPathFromIDListA
SHEmptyRecycleBinA

urlmon

URLDownloadToFileA

comctl32

_TrackMouseEvent
ImageList_SetIconSize
ImageList_GetIconSize
ImageList_Write
ImageList_Read
ImageList_DragShowNolock
ImageList_DragMove
ImageList_DragLeave
ImageList_DragEnter
ImageList_EndDrag
ImageList_BeginDrag
ImageList_Remove
ImageList_DrawEx
ImageList_Draw
ImageList_GetBkColor
ImageList_SetBkColor
ImageList_Add
ImageList_GetImageCount
ImageList_Destroy
ImageList_Create

wininet

InternetReadFile
InternetOpenUrlA
InternetOpenA
InternetConnectA
InternetCloseHandle
HttpQueryInfoA
FtpPutFileA

winmm

waveInUnprepareHeader
waveInStart
waveInReset
waveInPrepareHeader
waveInOpen
waveInClose
waveInAddBuffer
PlaySoundA
mciSendStringA

netapi32

Netbios
NetApiBufferFree
NetShareGetInfo
NetShareEnum

gdiplus

GdipGetImageEncoders
GdipGetImageEncodersSize
GdipDrawImageRectI
GdipSetInterpolationMode
GdipDeleteGraphics
GdipCreateBitmapFromHBITMAP
GdipCreateBitmapFromScan0
GdipGetImagePixelFormat
GdipGetImageGraphicsContext
GdipSaveImageToStream
GdipDisposeImage
GdiplusShutdown
GdiplusStartup
GdipFree
GdipAlloc

msacm32

acmStreamUnprepareHeader
acmStreamPrepareHeader
acmStreamConvert
acmStreamReset
acmStreamSize
acmStreamClose
acmStreamOpen

ntdll

NtQuerySystemInformation
NtUnmapViewOfSection

ws2_32

WSAIoctl

shfolder

SHGetFolderPathA

avicap32

capGetDriverDescriptionA

Sections

.text
Size: 566KB - Virtual size: 566KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.itext
Size: 6KB - Virtual size: 6KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 15KB - Virtual size: 15KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.bss
Size: - Virtual size: 29KB

IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.idata
Size: 16KB - Virtual size: 16KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.tls
Size: - Virtual size: 56B

IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 35KB - Virtual size: 34KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

.rsrc
Size: 1.6MB - Virtual size: 1.6MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Extracted

Signatures

Files

e5b4359a3773764a372173074ae9b6bd

Headers

File Characteristics

Imports

oleaut32

advapi32

user32

kernel32

gdi32

version

wsock32

ole32

shell32

urlmon

comctl32

wininet

winmm

netapi32

gdiplus

msacm32

ntdll

ws2_32

shfolder

avicap32

Sections

.text Size: 566KB - Virtual size: 566KB

.itext Size: 6KB - Virtual size: 6KB

.data Size: 15KB - Virtual size: 15KB

.bss Size: - Virtual size: 29KB

.idata Size: 16KB - Virtual size: 16KB

.tls Size: - Virtual size: 56B

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

.reloc Size: 35KB - Virtual size: 34KB

.rsrc Size: 1.6MB - Virtual size: 1.6MB

.text
Size: 566KB - Virtual size: 566KB

.itext
Size: 6KB - Virtual size: 6KB

.data
Size: 15KB - Virtual size: 15KB

.bss
Size: - Virtual size: 29KB

.idata
Size: 16KB - Virtual size: 16KB

.tls
Size: - Virtual size: 56B

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

.reloc
Size: 35KB - Virtual size: 34KB

.rsrc
Size: 1.6MB - Virtual size: 1.6MB