Static task
static1
Behavioral task
behavioral1
Sample
a4.exe
Resource
win7-20231020-en
Behavioral task
behavioral2
Sample
a4.exe
Resource
win10v2004-20231023-en
General
-
Target
a4.exe
-
Size
973KB
-
MD5
bae0c247541bf5ea157be78e2f12eb5f
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SHA1
bf24bee9fd1815d5fcb90caab22655aacd3bf22b
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SHA256
a3c53847b7e2b9c99bb0e58624b4fdc620e2999bdd4fe39d778a15260a687bd5
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SHA512
85b4aa3bb273f45133bae1dd381d194f32fbcab2263d4c71ce684a60ce71033f0c5f1238bbc9681d41153eb0d068071d8d57f109c813ee9c0b2f49623015bc79
-
SSDEEP
12288:917711ahBUHZD+ugbKGd8pGzA96mJgY7X5Vo:rOjUHZgb3ypGzAD17J
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource a4.exe
Files
-
a4.exe.exe windows:4 windows x64 arch:x64
f59d428ceba19aca8eef1b4b5e8a1dfb
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_DEBUG_STRIPPED
Imports
kernel32
AddAtomA
AddVectoredExceptionHandler
CloseHandle
CreateEventA
CreateFileA
CreateMutexA
CreateSemaphoreA
DeleteAtom
DeleteCriticalSection
DuplicateHandle
EnterCriticalSection
FindAtomA
FormatMessageA
GetAtomNameA
GetCurrentProcess
GetCurrentProcessId
GetCurrentThread
GetCurrentThreadId
GetFileSize
GetHandleInformation
GetLastError
GetModuleHandleW
GetProcAddress
GetProcessAffinityMask
GetProcessHeap
GetStartupInfoA
GetSystemTimeAsFileTime
GetThreadContext
GetThreadPriority
GetTickCount
HeapAlloc
InitializeCriticalSection
IsDBCSLeadByteEx
IsDebuggerPresent
LeaveCriticalSection
LoadLibraryW
LocalFree
MultiByteToWideChar
OpenProcess
OutputDebugStringA
QueryPerformanceCounter
QueryPerformanceFrequency
RaiseException
ReadFile
ReleaseMutex
ReleaseSemaphore
RemoveVectoredExceptionHandler
ResetEvent
ResumeThread
RtlCaptureContext
RtlLookupFunctionEntry
RtlUnwindEx
RtlVirtualUnwind
SetEvent
SetLastError
SetProcessAffinityMask
SetThreadContext
SetThreadPriority
SetUnhandledExceptionFilter
Sleep
SuspendThread
TlsAlloc
TlsGetValue
TlsSetValue
TryEnterCriticalSection
VirtualAllocEx
VirtualProtect
VirtualQuery
WaitForMultipleObjects
WaitForSingleObject
WideCharToMultiByte
__C_specific_handler
msvcrt
___lc_codepage_func
___mb_cur_max_func
__getmainargs
__initenv
__iob_func
__lconv_init
__set_app_type
__setusermatherr
_acmdln
_amsg_exit
_beginthreadex
_cexit
_close
_commode
_endthreadex
_errno
_fdopen
_filelengthi64
_fileno
_fileno
_fmode
_fstat64
_initterm
_lock
_lseeki64
_memccpy
_onexit
_read
_setjmp
_strdup
_strnicmp
_ultoa
_unlock
_wfopen
_write
abort
calloc
exit
fclose
fflush
fgetpos
fopen
fprintf
fputc
fputs
fread
free
fsetpos
fwrite
getc
getwc
isspace
iswctype
localeconv
longjmp
malloc
memchr
memcmp
memcpy
memmove
memset
printf
putc
putwc
realloc
setlocale
setvbuf
signal
strcmp
strcoll
strerror
strftime
strlen
strncmp
strxfrm
towlower
towupper
ungetc
ungetwc
vfprintf
wcscoll
wcsftime
wcslen
wcsxfrm
Sections
.text Size: 769KB - Virtual size: 769KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.data Size: 13KB - Virtual size: 12KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rdata Size: 65KB - Virtual size: 65KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.pdata Size: 46KB - Virtual size: 45KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.xdata Size: 64KB - Virtual size: 64KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.bss Size: - Virtual size: 4KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.idata Size: 5KB - Virtual size: 5KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.CRT Size: 512B - Virtual size: 112B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.tls Size: 512B - Virtual size: 16B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.reloc Size: 6KB - Virtual size: 5KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ