Static task
static1
Behavioral task
behavioral1
Sample
otrast.exe
Resource
win7-20230621-en
Behavioral task
behavioral2
Sample
otrast.exe
Resource
win10v2004-20230621-en
General
-
Target
otrast.exe
-
Size
1.6MB
-
MD5
04bd4325162a7ddfcaab47f90fa609f0
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SHA1
4ebd0be4827d2db1b78a9e342352ad3ec4cfc089
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SHA256
7a9ebb99f48cb80c87810d858db383562e5978e1997fafb4f4ae6f5375d34cf2
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SHA512
87741d6682b38e16e8cb3246c0d893c19d5111b08bce17b10165f13bf1d9e5dbd5c6da878d8c8850287d116808422c7072f612ca8d34ed5520477430477b762c
-
SSDEEP
12288:DYE71Z5XD1lw82ANUzQfITqBTfJ6c3sy/cYnijhzrVzBCQm9mF0uQF:D97v5XD1lZNUzQgTq3no1VzBCjo0
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource otrast.exe
Files
-
otrast.exe.exe windows x64
4977a7517efa1e4c01c51c2d9ac00ed3
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
CloseHandle
CreateProcessA
CreateSemaphoreW
CreateToolhelp32Snapshot
DeleteCriticalSection
DeleteProcThreadAttributeList
EnterCriticalSection
FormatMessageA
GetCurrentThreadId
GetLastError
GetModuleHandleA
GetModuleHandleW
GetProcAddress
GetProcessHeap
GetStartupInfoA
HeapAlloc
InitializeCriticalSection
InitializeProcThreadAttributeList
IsDBCSLeadByteEx
LeaveCriticalSection
LoadLibraryW
LocalFree
MultiByteToWideChar
Process32First
Process32Next
RaiseException
ReleaseSemaphore
RtlCaptureContext
RtlLookupFunctionEntry
RtlUnwindEx
RtlVirtualUnwind
SetLastError
SetUnhandledExceptionFilter
Sleep
TlsAlloc
TlsFree
TlsGetValue
TlsSetValue
UpdateProcThreadAttribute
VirtualProtect
VirtualQuery
WaitForSingleObject
WideCharToMultiByte
msvcrt
__C_specific_handler
___lc_codepage_func
___mb_cur_max_func
__getmainargs
__initenv
__iob_func
__set_app_type
__setusermatherr
_acmdln
_amsg_exit
_cexit
_commode
_errno
_filelengthi64
_fileno
_fmode
_fstat64
_initterm
_lock
_lseeki64
_onexit
_unlock
_wfopen
abort
calloc
exit
fclose
fflush
fgetpos
fopen
fprintf
fputc
fputs
fread
free
fsetpos
fwrite
getc
getwc
iswctype
localeconv
malloc
memchr
memcmp
memcpy
memmove
memset
putc
putwc
realloc
setlocale
setvbuf
signal
strcmp
strcoll
strerror
strftime
strlen
strncmp
strxfrm
towlower
towupper
ungetc
ungetwc
vfprintf
wcscoll
wcsftime
wcslen
wcsxfrm
_write
_stricmp
_read
_fileno
_fdopen
_close
ntdll
RtlInitUnicodeString
Sections
.text Size: 753KB - Virtual size: 752KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.data Size: 534KB - Virtual size: 534KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rdata Size: 70KB - Virtual size: 70KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.pdata Size: 44KB - Virtual size: 43KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.xdata Size: 63KB - Virtual size: 62KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.bss Size: - Virtual size: 3KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.idata Size: 4KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.CRT Size: 512B - Virtual size: 96B
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
.reloc Size: 137KB - Virtual size: 137KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ