Behavioral task
behavioral1
Sample
MegaJoker.dll
Resource
win7-20230621-en
Behavioral task
behavioral2
Sample
MegaJoker.dll
Resource
win10v2004-20230621-en
General
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Target
MegaJoker.dll
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Size
7.8MB
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MD5
33a804ff39944ca26f9affbcc8009eea
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SHA1
857bf53ccca16816b2c810ba314594e8169e25dc
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SHA256
b2f8b127e94eb835e6a081b1696c9d9fa095a9684cf8e369cace94ec7c3ab9ea
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SHA512
d0ac4b0d4c457a4ed0a6c09039f5614908aac1c13fa241c2ff39cbe33e8a64befdb8e7236fa68e99ee22a386c934a84424bfae9c078478e78cc570d1aea9b83b
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SSDEEP
196608:tyCslBbYL5a9aR/hs11vupSsqF10P1CPwDvt3uFTDC7LIKcosI3jhMSN/:ST8LTpc1vupSfF1s1CPwDvt3uF/CfIKF
Malware Config
Signatures
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Privateloader family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource MegaJoker.dll
Files
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MegaJoker.dll.dll windows x86
78cd1e446a647c3a94d67599821be1d8
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Imports
kernel32
SetCurrentDirectoryA
CreateToolhelp32Snapshot
MultiByteToWideChar
Sleep
GetTempPathA
GetModuleHandleExA
GetTimeZoneInformation
CopyFileA
GetLastError
GetFileAttributesA
TzSpecificLocalTimeToSystemTime
CreateFileA
LoadLibraryA
GetVersionExA
LockResource
DeleteFileA
Process32Next
CloseHandle
GetSystemInfo
GetWindowsDirectoryA
LoadResource
SetFileAttributesA
GetLocalTime
GetProcAddress
LocalFree
RemoveDirectoryA
GlobalMemoryStatusEx
FreeLibrary
WideCharToMultiByte
CreateDirectoryA
GetSystemTime
GetPrivateProfileStringA
IsWow64Process
GetComputerNameA
lstrcatA
lstrcpyA
lstrcpynA
ReadFile
SetFilePointer
CreateFileW
AreFileApisANSI
TryEnterCriticalSection
HeapCreate
HeapFree
EnterCriticalSection
FreeResource
GetDiskFreeSpaceW
lstrlenA
LockFile
LeaveCriticalSection
InitializeCriticalSection
GetFullPathNameA
SetEndOfFile
UnlockFileEx
GetTempPathW
CreateMutexW
WaitForSingleObject
GetFileAttributesW
GetCurrentThreadId
UnmapViewOfFile
HeapValidate
HeapSize
FormatMessageW
GetDiskFreeSpaceA
GetFileAttributesExW
OutputDebugStringW
FlushViewOfFile
WaitForSingleObjectEx
DeleteFileW
HeapReAlloc
LoadLibraryW
HeapAlloc
HeapCompact
HeapDestroy
UnlockFile
LockFileEx
GetFileSize
DeleteCriticalSection
GetCurrentProcessId
GetProcessHeap
SystemTimeToFileTime
GetSystemTimeAsFileTime
FormatMessageA
CreateFileMappingW
MapViewOfFile
QueryPerformanceCounter
GetTickCount
FlushFileBuffers
VirtualQuery
VirtualProtect
WriteConsoleW
SetEnvironmentVariableW
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetCommandLineW
GetCommandLineA
GetOEMCP
LoadLibraryExA
GetLocaleInfoA
GetModuleHandleA
LocalAlloc
GetVolumeInformationA
GetFullPathNameW
FindClose
FindResourceA
FindNextFileA
GetUserDefaultLocaleName
WriteFile
GetCurrentProcess
SetPriorityClass
FindFirstFileA
Process32First
GetPrivateProfileSectionNamesA
GetACP
IsValidCodePage
SizeofResource
OutputDebugStringA
GetModuleFileNameA
SetStdHandle
EnumSystemLocalesW
GetUserDefaultLCID
IsValidLocale
GetLocaleInfoW
LCMapStringW
CompareStringW
GetFileSizeEx
GetStdHandle
GetConsoleOutputCP
ReadConsoleW
GetConsoleMode
GetModuleFileNameW
FindFirstFileExW
FindNextFileW
GetFinalPathNameByHandleW
SetFilePointerEx
GetFileInformationByHandleEx
LCMapStringEx
InitializeCriticalSectionEx
EncodePointer
DecodePointer
CompareStringEx
GetCPInfo
GetStringTypeW
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TerminateProcess
IsProcessorFeaturePresent
InitializeCriticalSectionAndSpinCount
SetEvent
ResetEvent
CreateEventW
GetModuleHandleW
IsDebuggerPresent
GetStartupInfoW
InitializeSListHead
RtlUnwind
RaiseException
InterlockedFlushSList
SetLastError
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
LoadLibraryExW
GetFileType
ExitProcess
GetModuleHandleExW
CreateThread
ExitThread
FreeLibraryAndExitThread
user32
GetSystemMetrics
GetDC
GetWindowRect
EnumDisplayDevicesA
GetDesktopWindow
GetKeyboardLayoutList
ReleaseDC
wsprintfA
gdi32
CreateCompatibleBitmap
SelectObject
CreateCompatibleDC
DeleteObject
BitBlt
advapi32
RegQueryValueExA
RegOpenKeyExA
GetUserNameA
RegCloseKey
GetCurrentHwProfileA
RegEnumKeyExA
CredEnumerateA
CredFree
shell32
ShellExecuteA
SHGetFolderPathA
crypt32
CryptUnprotectData
CryptStringToBinaryA
gdiplus
GdipSaveImageToFile
GdipFree
GdipDisposeImage
GdipCreateBitmapFromHBITMAP
GdipAlloc
GdipCloneImage
GdipGetImageEncoders
GdiplusShutdown
GdiplusStartup
GdipGetImageEncodersSize
setupapi
SetupDiGetDeviceInterfaceDetailA
SetupDiGetClassDevsA
SetupDiEnumDeviceInterfaces
SetupDiEnumDeviceInfo
Sections
.text Size: 1.8MB - Virtual size: 1.8MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 153KB - Virtual size: 152KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 10KB - Virtual size: 15KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 5.8MB - Virtual size: 5.8MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 31KB - Virtual size: 31KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ