Samurai[.]exe | Triage™

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General

Target
Samurai.exe
Size 13.4MB
Sample261104-xvbeeae15p
SHA256 b09244417267c255f3293c3c1e4dc144c351e45efc69d01bbcee95d2a56eba8e
MD5 1ae8b24dcd817337eeff777dde3675ee
SHA1 26a05c323d4a09b05a86ccf7f30fd7be20d8cd82
SHA512 18ce78e132ba33d9be1241cf0909bd63637b8af2f833d94daad5c82193106156a1daadba55dceee6680dbbc98c9413d28276ced7e73e73f8b2319c38a4037d45
SSDEEP 196608:1EV2KXlu6pRMBjjWY+f9fSFKIzeKj8+DcUeVnqIZByJOfVJ4hr7Fvkh:1E9l+UtoVJOIV+h
TLSH
T1F9E6CF21A19E9B9CF026B038D993A617A3F13C0D1720CFD756D04DB75E5F6D0BABA209
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
Samurai.exe

File Explorer

Samurai.exe

.exe 13.4MB

Samurai.exe

IMPHASH 13e3f50c624b15cfc695c0565d6347cc
SHA256 b09244417267c255f3293c3c1e4dc144c351e45efc69d01bbcee95d2a56eba8e
MD5 1ae8b24dcd817337eeff777dde3675ee
SHA1 26a05c323d4a09b05a86ccf7f30fd7be20d8cd82
SHA512 18ce78e132ba33d9be1241cf0909bd63637b8af2f833d94daad5c82193106156a1daadba55dceee6680dbbc98c9413d28276ced7e73e73f8b2319c38a4037d45
SSDEEP 196608:1EV2KXlu6pRMBjjWY+f9fSFKIzeKj8+DcUeVnqIZByJOfVJ4hr7Fvkh:1E9l+UtoVJOIV+h
TLSH
T1F9E6CF21A19E9B9CF026B038D993A617A3F13C0D1720CFD756D04DB75E5F6D0BABA209
MD5 SHA1 SHA512 SSDEEP TLSH

Unsigned PE

Checks for missing Authenticode signature.

Password

dsadsadsa

Minor OS version

Major OS version

Entry point

7817824

Magic Number

523

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE IMAGE_DLLCHARACTERISTICS_NX_COMPAT IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_LARGE_ADDRESS_AWARE

PDB paths

d3d11

D3D11CreateDeviceAndSwapChain

d3dx11_43

D3DX11GetImageInfoFromMemory D3DX11GetImageInfoFromFileA D3DX11CreateShaderResourceViewFromFileA D3DX11CreateShaderResourceViewFromMemory

winhttp

WinHttpQueryDataAvailable WinHttpCrackUrl WinHttpOpen WinHttpQueryHeaders WinHttpWebSocketSend WinHttpReceiveResponse WinHttpReadData WinHttpSetOption WinHttpWebSocketCompleteUpgrade WinHttpConnect WinHttpSetTimeouts WinHttpSendRequest WinHttpOpenRequest WinHttpCloseHandle WinHttpWebSocketReceive

crypt32

CryptUnprotectData CryptProtectData

winmm

waveOutWrite waveOutClose timeEndPeriod mciSendStringA waveOutReset timeBeginPeriod waveOutPrepareHeader waveOutOpen waveOutUnprepareHeader

kernel32

GlobalLock GlobalUnlock GetModuleHandleA GetLocaleInfoA LoadLibraryA QueryPerformanceFrequency GetProcAddress VerSetConditionMask FreeLibrary QueryPerformanceCounter CreateDirectoryW FindFirstFileW WritePrivateProfileStringW GetPrivateProfileIntW GetEnvironmentVariableW FindClose GetFileAttributesW DeleteFileW CopyFileW ReadFile GetFileSizeEx CreateFileW CloseHandle CompareFileTime FindNextFileW WriteFile GetFileAttributesExW MoveFileExW OpenProcess QueryFullProcessImageNameW WaitForSingleObject CreateEventW GetCurrentThreadId GetStartupInfoW SetPriorityClass GetCommandLineW GetCurrentProcess CreateToolhelp32Snapshot Process32NextW Process32FirstW ExitProcess GetModuleHandleW VirtualAllocEx VirtualFreeEx GetExitCodeProcess VirtualProtect GetCurrentThread GetModuleFileNameW SetEndOfFile ExitThread SetFilePointerEx GetCurrentProcessId CreateProcessW FlushFileBuffers GetExitCodeThread LoadLibraryW CreateRemoteThread SizeofResource LockResource LoadResource GlobalAlloc GetPrivateProfileStringW GetVolumeInformationA LocalFree K32GetModuleFileNameExA GetSystemInfo GlobalMemoryStatusEx K32EnumProcessModules CreateMutexA CreateFileA HeapAlloc HeapReAlloc HeapFree GetProcessHeap MapViewOfFile UnmapViewOfFile CreateFileMappingA GetLocaleInfoW IsValidLocale GetUserDefaultLCID EnumSystemLocalesW OutputDebugStringW GetConsoleMode ReadConsoleW GetConsoleOutputCP GetTimeZoneInformation IsValidCodePage GetACP GetOEMCP GetCommandLineA SetThreadPriority FlushInstructionCache MultiByteToWideChar VirtualQueryEx GetTickCount WideCharToMultiByte ReadProcessMemory GetEnvironmentStringsW FreeEnvironmentStringsW SetEnvironmentVariableW SetStdHandle HeapSize SetEvent VirtualProtectEx GetLastError GetTickCount64 WriteProcessMemory LCMapStringW CompareStringW GetTimeFormatW GetDateFormatW LoadLibraryExW TerminateProcess UnhandledExceptionFilter IsDebuggerPresent RtlVirtualUnwind RtlCaptureContext WriteConsoleW GetFileType GetStdHandle GetModuleHandleExW FreeLibraryAndExitThread CreateThread K32GetModuleInformation K32GetModuleBaseNameW Sleep RtlUnwind FlsFree FlsSetValue FlsGetValue FlsAlloc SetLastError GlobalFree FindResourceW K32EnumProcessModulesEx RtlLookupFunctionEntry RtlUnwindEx InterlockedPushEntrySList

user32

ShowWindow GetMonitorInfoW EnumDisplayDevicesW EnumDisplaySettingsW DefWindowProcW RegisterClassExW GetSystemMetrics SetLayeredWindowAttributes GetWindowThreadProcessId SetWindowPos SetActiveWindow SetWindowLongPtrW GetWindowLongPtrW MapWindowPoints GetRawInputData AttachThreadInput SetFocus BringWindowToTop RegisterRawInputDevices SetForegroundWindow GetAncestor GetKeyState GetMessageExtraInfo GetDC GetWindowTextA ScreenToClient DestroyWindow GetClassNameA SetWindowDisplayAffinity UnregisterClassW CreateWindowExW GetWindowRect GetCapture ClientToScreen TrackMouseEvent GetKeyboardLayout GetForegroundWindow LoadCursorW SetCapture SetCursor SetProcessDPIAware IsWindowUnicode ReleaseCapture SetCursorPos ReleaseDC GetCursorPos OpenClipboard CloseClipboard EmptyClipboard GetClipboardData SetClipboardData GetClientRect MessageBoxW IsWindow GetAsyncKeyState DispatchMessageW PeekMessageW TranslateMessage GetWindowLongW IsIconic ShowCursor UpdateWindow IsWindowVisible MonitorFromPoint SetWindowRgn EnumDisplayMonitors MonitorFromWindow LoadIconW SetWindowLongW

gdi32

GetDeviceCaps CreateRoundRectRgn GetStockObject

comdlg32

GetOpenFileNameW

advapi32

RevertToSelf LookupPrivilegeNameW ConvertSidToStringSidA RegDeleteValueA RegOpenKeyExA RegCloseKey GetTokenInformation DuplicateTokenEx CreateProcessAsUserW SetThreadToken OpenProcessToken SetTokenInformation PrivilegeCheck AdjustTokenPrivileges LookupPrivilegeValueW

shell32

SHGetFolderPathW SHCreateDirectoryExW SHQueryUserNotificationState ShellExecuteW SHGetKnownFolderPath

ole32

CoUninitialize CoCreateFreeThreadedMarshaler CoCreateInstance CoTaskMemFree PropVariantClear CreateStreamOnHGlobal CoInitializeEx GetHGlobalFromStream

imm32

ImmGetContext ImmReleaseContext ImmSetCompositionWindow ImmSetCandidateWindow

d3dcompiler_43

D3DCompile

dwmapi

DwmExtendFrameIntoClientArea DwmUpdateThumbnailProperties DwmRegisterThumbnail DwmUnregisterThumbnail DwmSetWindowAttribute

gdiplus

GdipGetImageGraphicsContext GdipGetImageEncodersSize GdipDeleteGraphics GdipFree GdipSetPixelOffsetMode GdipSaveImageToStream GdipCreateBitmapFromScan0 GdipCreateBitmapFromStream GdipSetInterpolationMode GdipDisposeImage GdipDrawImageRectI GdipAlloc GdipCloneImage GdipGetImageEncoders GdipGetImageHeight GdiplusShutdown GdiplusStartup GdipBitmapGetPixel GdipGetImageWidth GdipCreateBitmapFromFile

mfplat

MFStartup MFCreateAttributes MFShutdown MFCreateMediaType

mfreadwrite

MFCreateSourceReaderFromURL

ws2_32

ntohs closesocket select __WSAFDIsSet connect socket WSAStartup ioctlsocket

iphlpapi

GetExtendedTcpTable IcmpCreateFile IcmpCloseHandle IcmpSendEcho

bcrypt

BCryptCreateHash BCryptHashData BCryptDestroyHash BCryptCloseAlgorithmProvider BCryptFinishHash BCryptOpenAlgorithmProvider

api-ms-win-core-sysinfo-l1-2-0

GetSystemTimePreciseAsFileTime

api-ms-win-core-synch-l1-2-0

InitOnceBeginInitialize InitOnceComplete SleepConditionVariableSRW WakeConditionVariable WakeAllConditionVariable

api-ms-win-core-localization-l1-2-0

FormatMessageA GetCPInfo GetLocaleInfoEx LCMapStringEx

api-ms-win-core-synch-l1-1-0

AcquireSRWLockExclusive ReleaseSRWLockExclusive InitializeCriticalSectionEx DeleteCriticalSection WaitForSingleObjectEx LeaveCriticalSection EnterCriticalSection

api-ms-win-core-processthreads-l1-1-0

SwitchToThread

api-ms-win-core-sysinfo-l1-1-0

GetSystemTimeAsFileTime

api-ms-win-core-rtlsupport-l1-1-0

RtlPcToFileHeader

api-ms-win-core-errorhandling-l1-1-0

SetUnhandledExceptionFilter RaiseException

api-ms-win-core-file-l1-1-0

SetFileInformationByHandle FindFirstFileExW

api-ms-win-core-file-l1-2-0

CreateFile2

api-ms-win-core-file-l1-2-2

AreFileApisANSI

api-ms-win-core-file-l2-1-0

GetFileInformationByHandleEx

api-ms-win-core-util-l1-1-0

EncodePointer DecodePointer

api-ms-win-core-string-l1-1-0

CompareStringEx GetStringTypeW

api-ms-win-core-processthreads-l1-1-1

IsProcessorFeaturePresent

api-ms-win-core-interlocked-l1-1-0

InitializeSListHead

shlwapi

ord12

oleaut32

SysFreeString GetErrorInfo SetErrorInfo SysStringLen

api-ms-win-core-winrt-error-l1-1-1

RoOriginateLanguageException

api-ms-win-core-winrt-l1-1-0

RoGetActivationFactory

Name

.text

Size

7.7MB

Virtual Size

7.7MB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

3.6MB

Virtual Size

3.6MB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

1.7MB

Virtual Size

1.7MB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.pdata

Size

97KB

Virtual Size

97KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.fptable

Size

512B

Virtual Size

256B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.rsrc

Size

325KB

Virtual Size

325KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.reloc

Size

10KB

Virtual Size

10KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

File Explorer

Samurai.exe

d3d11

d3dx11_43

winhttp

crypt32

winmm

kernel32

user32

gdi32

comdlg32

advapi32

shell32

ole32

imm32

d3dcompiler_43

dwmapi

gdiplus

mfplat

mfreadwrite

ws2_32

iphlpapi

bcrypt

api-ms-win-core-sysinfo-l1-2-0

api-ms-win-core-synch-l1-2-0

api-ms-win-core-localization-l1-2-0

api-ms-win-core-synch-l1-1-0

api-ms-win-core-processthreads-l1-1-0

api-ms-win-core-sysinfo-l1-1-0

api-ms-win-core-rtlsupport-l1-1-0

api-ms-win-core-errorhandling-l1-1-0

api-ms-win-core-file-l1-1-0

api-ms-win-core-file-l1-2-0

api-ms-win-core-file-l1-2-2

api-ms-win-core-file-l2-1-0

api-ms-win-core-util-l1-1-0

api-ms-win-core-string-l1-1-0

api-ms-win-core-processthreads-l1-1-1

api-ms-win-core-interlocked-l1-1-0

shlwapi

oleaut32

api-ms-win-core-winrt-error-l1-1-1

api-ms-win-core-winrt-l1-1-0

generic