YoomaChecker[.]sfx[.]exe

Sharing

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General

Target

YoomaChecker.sfx.exe
Size

54.3MB
MD5

9aa94663566752ce7af8812240e53153
SHA1

53502463807ae924fc980951b702a560878eae4d
SHA256

92641fe7368974cf87ff8e693515048b8cdc4cc79a0579630e377517be86d895
SHA512

27aa3241cc65abe60df0b378f8f7a178e73d007248ffd787d47533c8f3f8cb1611d44f7c7b848ce400cc9754099ab22b1e40f18c8f27d465cfbe5bfbd91d4348
SSDEEP

786432:/wWsTLcuOuRja+w1rCMSu46yETgoUJHIDLrCzWFTGc8Ja5JGZJ393sSZAVtF3bKD:oWODa+ubSP6yoDLrC6/ca5A3rytbKD

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
YoomaChecker.sfx.exe

Files

YoomaChecker.sfx.exe
.exe windows:5 windows x64 arch:x64

b1c5b1beabd90d9fdabd1df0779ea832

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_GUARD_CF
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

PDB Paths

D:\Projects\WinRAR\sfx\build\sfxrar64\Release\sfxrar.pdb

Imports

kernel32

LocalFree
GetLastError
SetLastError
FormatMessageW
GetCurrentProcess
DeviceIoControl
SetFileTime
CloseHandle
RemoveDirectoryW
CreateFileW
DeleteFileW
CreateHardLinkW
GetShortPathNameW
GetLongPathNameW
MoveFileW
GetFileType
GetStdHandle
WriteFile
ReadFile
FlushFileBuffers
SetEndOfFile
SetFilePointer
GetCurrentProcessId
CreateDirectoryW
SetFileAttributesW
GetFileAttributesW
FindClose
FindFirstFileW
FindNextFileW
GetVersionExW
GetModuleFileNameW
SetCurrentDirectoryW
GetCurrentDirectoryW
GetFullPathNameW
FoldStringW
GetModuleHandleW
FindResourceW
FreeLibrary
GetProcAddress
ExpandEnvironmentStringsW
ExitProcess
SetThreadExecutionState
Sleep
LoadLibraryW
GetSystemDirectoryW
CompareStringW
AllocConsole
FreeConsole
AttachConsole
WriteConsoleW
GetProcessAffinityMask
CreateThread
SetThreadPriority
InitializeCriticalSection
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
SetEvent
ResetEvent
ReleaseSemaphore
WaitForSingleObject
CreateEventW
CreateSemaphoreW
GetSystemTime
SystemTimeToTzSpecificLocalTime
TzSpecificLocalTimeToSystemTime
SystemTimeToFileTime
FileTimeToLocalFileTime
LocalFileTimeToFileTime
FileTimeToSystemTime
GetCPInfo
IsDBCSLeadByte
MultiByteToWideChar
WideCharToMultiByte
GlobalAlloc
LockResource
GlobalLock
GlobalUnlock
GlobalFree
GlobalMemoryStatusEx
LoadResource
SizeofResource
GetTimeFormatW
GetDateFormatW
GetExitCodeProcess
GetLocalTime
GetTickCount
MapViewOfFile
UnmapViewOfFile
CreateFileMappingW
OpenFileMappingW
GetCommandLineW
SetEnvironmentVariableW
GetTempPathW
MoveFileExW
GetLocaleInfoW
GetNumberFormatW
SetFilePointerEx
GetConsoleMode
GetConsoleCP
HeapSize
SetStdHandle
GetProcessHeap
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetCommandLineA
GetOEMCP
IsValidCodePage
FindNextFileA
RaiseException
GetSystemInfo
VirtualProtect
VirtualQuery
LoadLibraryExA
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TerminateProcess
IsProcessorFeaturePresent
InitializeCriticalSectionAndSpinCount
WaitForSingleObjectEx
IsDebuggerPresent
GetStartupInfoW
QueryPerformanceCounter
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
RtlPcToFileHeader
RtlUnwindEx
EncodePointer
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
LoadLibraryExW
QueryPerformanceFrequency
GetModuleHandleExW
GetModuleFileNameA
GetACP
HeapFree
HeapAlloc
GetStringTypeW
HeapReAlloc
LCMapStringW
FindFirstFileExA

oleaut32

SysAllocString
SysFreeString
VariantClear

gdiplus

GdipCloneImage
GdipFree
GdipDisposeImage
GdipCreateBitmapFromStream
GdipCreateHBITMAPFromBitmap
GdiplusStartup
GdiplusShutdown
GdipAlloc

Sections

.text
Size: 282KB - Virtual size: 281KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 74KB - Virtual size: 74KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 6KB - Virtual size: 57KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 12KB - Virtual size: 12KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.didat
Size: 1024B - Virtual size: 864B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

_RDATA
Size: 512B - Virtual size: 348B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 57KB - Virtual size: 56KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 2KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

b1c5b1beabd90d9fdabd1df0779ea832

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

kernel32

oleaut32

gdiplus

Sections

.text Size: 282KB - Virtual size: 281KB

.rdata Size: 74KB - Virtual size: 74KB

.data Size: 6KB - Virtual size: 57KB

.pdata Size: 12KB - Virtual size: 12KB

.didat Size: 1024B - Virtual size: 864B

_RDATA Size: 512B - Virtual size: 348B

.rsrc Size: 57KB - Virtual size: 56KB

.reloc Size: 2KB - Virtual size: 2KB

.text
Size: 282KB - Virtual size: 281KB

.rdata
Size: 74KB - Virtual size: 74KB

.data
Size: 6KB - Virtual size: 57KB

.pdata
Size: 12KB - Virtual size: 12KB

.didat
Size: 1024B - Virtual size: 864B

_RDATA
Size: 512B - Virtual size: 348B

.rsrc
Size: 57KB - Virtual size: 56KB

.reloc
Size: 2KB - Virtual size: 2KB