FileCryptor[.]exe

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General

Target

FileCryptor.exe
Size

603KB
MD5

2a4dcedd1ee15be997f777f49a026a76
SHA1

3a12106a3d88fc6945bb4bd59a7a21ec489bbfd8
SHA256

7479f458d921232e94ee28da60a39e4148f201d31cd7da598d1db6799c594504
SHA512

8af47d24ef7073f2c40771617ff360113db99dae0516fae71c0d88fb5bdb7b9fb5d66b60ebeb0e594b5496ff928ecde07b38e11c1c7b5e7b674f933f6004a18c
SSDEEP

6144:zXHYD3Xf1qFMjTZA37wr0huzaZLcJp416kBayPXmbks3HeF+koXOuy+Q4s0zrJB2:k67wp26kBayegs3+IOCQ2JBUABMBOI

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
FileCryptor.exe

Files

FileCryptor.exe
.exe windows:6 windows x64 arch:x64

98ca2865411203a208f03bcc4db52130

Headers

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

Imports

kernel32

ReleaseSRWLockShared
GetLastError
AddVectoredExceptionHandler
SetThreadStackGuarantee
GetCurrentProcess
GetCurrentThread
RtlCaptureContext
RtlLookupFunctionEntry
SetLastError
GetCurrentDirectoryW
GetEnvironmentVariableW
RtlVirtualUnwind
SetFilePointerEx
FindClose
ReleaseMutex
QueryPerformanceFrequency
QueryPerformanceCounter
GetSystemTimeAsFileTime
WriteConsoleW
GetCurrentProcessId
SetConsoleTextAttribute
WaitForSingleObject
HeapAlloc
GetProcessHeap
HeapFree
InitializeSListHead
HeapReAlloc
AcquireSRWLockShared
WaitForSingleObjectEx
LoadLibraryA
CreateMutexA
GetFileInformationByHandle
FindFirstFileW
GetModuleHandleW
FormatMessageW
GetFullPathNameW
MultiByteToWideChar
GetProcAddress
GetModuleHandleA
Sleep
IsDebuggerPresent
UnhandledExceptionFilter
SetUnhandledExceptionFilter
WaitForMultipleObjects
TryAcquireSRWLockExclusive
CreateFileW
GetFileInformationByHandleEx
ReadConsoleInputW
GetNumberOfConsoleInputEvents
SetConsoleCursorInfo
FillConsoleOutputAttribute
FillConsoleOutputCharacterA
SetConsoleCursorPosition
GetConsoleScreenBufferInfo
SetConsoleMode
GetConsoleMode
GetStdHandle
AcquireSRWLockExclusive
ReleaseSRWLockExclusive
SetConsoleTitleW
GetCurrentThreadId
CloseHandle
IsProcessorFeaturePresent

user32

ToUnicodeEx
GetForegroundWindow
GetKeyboardLayout
GetWindowThreadProcessId

ntdll

RtlNtStatusToDosError
NtWriteFile
NtReadFile

vcruntime140

memmove
__CxxFrameHandler3
memset
memcmp
__current_exception_context
__current_exception
__C_specific_handler
_CxxThrowException
memcpy

api-ms-win-crt-math-l1-1-0

__setusermatherr

api-ms-win-crt-runtime-l1-1-0

_exit
_configure_narrow_argv
__p___argc
__p___argv
_cexit
_c_exit
_register_thread_local_exe_atexit_callback
exit
_set_app_type
_initialize_narrow_environment
_initialize_onexit_table
_register_onexit_function
_crt_atexit
terminate
_initterm
_get_initial_narrow_environment
_initterm_e
_seh_filter_exe

api-ms-win-crt-stdio-l1-1-0

_set_fmode
__p__commode

api-ms-win-crt-locale-l1-1-0

_configthreadlocale

api-ms-win-crt-heap-l1-1-0

free
_set_new_mode

Sections

.text
Size: 390KB - Virtual size: 390KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 192KB - Virtual size: 192KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 3KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

98ca2865411203a208f03bcc4db52130

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

ntdll

vcruntime140

api-ms-win-crt-math-l1-1-0

api-ms-win-crt-runtime-l1-1-0

api-ms-win-crt-stdio-l1-1-0

api-ms-win-crt-locale-l1-1-0

api-ms-win-crt-heap-l1-1-0

Sections

.text Size: 390KB - Virtual size: 390KB

.rdata Size: 192KB - Virtual size: 192KB

.data Size: 512B - Virtual size: 1KB

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

.reloc Size: 3KB - Virtual size: 2KB

.text
Size: 390KB - Virtual size: 390KB

.rdata
Size: 192KB - Virtual size: 192KB

.data
Size: 512B - Virtual size: 1KB

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

.reloc
Size: 3KB - Virtual size: 2KB