Static task
static1
Behavioral task
behavioral1
Sample
Saytus_External.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
Saytus_External.exe
Resource
win10v2004-20231215-en
General
-
Target
Saytus_External.exe
-
Size
1.9MB
-
MD5
8de033eed91df8ac625b90f36750cd4c
-
SHA1
f3a41f809ef17b0977cd3aeee29698144b3bffe7
-
SHA256
6541662358aaf7e735127d49089b5500245daf47b0cf726109b5ec1560ad8b20
-
SHA512
9a9cdbb4a9b2e4c21fcc29a3528daf93e681771b1c1562cdc1a323bbdea3b3fd23d63779b4e4eb6e0db7487f7b289b048577d7534ce72621e4b4a0ce0294fdd1
-
SSDEEP
24576:iAOkXTX45OAfZ5JXk+UV7zuHuwo5nMF8uZFXfnRu2kZAhJXfeWCTLpXph+eDBkTE:rTX45DF0H7PwSnRu/X1wwuL1uZI
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource Saytus_External.exe
Files
-
Saytus_External.exe.exe windows:6 windows x64 arch:x64
b7780af6b51688306827bf108aef3e95
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
InitializeSListHead
GetSystemTimeAsFileTime
GetCurrentThreadId
GetCurrentProcessId
IsDebuggerPresent
IsProcessorFeaturePresent
TerminateProcess
SetUnhandledExceptionFilter
UnhandledExceptionFilter
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
SleepConditionVariableSRW
WakeAllConditionVariable
AcquireSRWLockExclusive
ReleaseSRWLockExclusive
GetFileInformationByHandleEx
QueryPerformanceCounter
FreeLibrary
VerSetConditionMask
GetProcAddress
QueryPerformanceFrequency
LoadLibraryA
GetModuleHandleA
GlobalUnlock
WideCharToMultiByte
GlobalLock
GlobalFree
CreateFileW
HeapDestroy
HeapAlloc
HeapReAlloc
HeapFree
HeapSize
GetProcessHeap
InitializeCriticalSectionEx
DeleteCriticalSection
GetCurrentProcess
VirtualProtect
CreateFileMappingW
MapViewOfFile
UnmapViewOfFile
GetModuleHandleW
QueryFullProcessImageNameW
FormatMessageA
LocalFree
EnterCriticalSection
LeaveCriticalSection
SleepEx
GetSystemDirectoryA
GlobalAlloc
MultiByteToWideChar
Module32NextW
Module32FirstW
GetLastError
OpenProcess
SetLastError
WriteProcessMemory
CreateThread
CloseHandle
Process32FirstW
Process32NextW
Sleep
CreateToolhelp32Snapshot
GetStdHandle
SetConsoleTitleA
VerifyVersionInfoA
GetTickCount
MoveFileExA
WaitForSingleObjectEx
GetEnvironmentVariableA
GetFileType
ReadFile
PeekNamedPipe
ReadProcessMemory
WaitForMultipleObjects
CreateFileA
GetFileSizeEx
GetLocaleInfoEx
GetCurrentDirectoryW
FindClose
FindFirstFileW
FindFirstFileExW
FindNextFileW
OutputDebugStringW
SetConsoleTextAttribute
GetConsoleScreenBufferInfo
GetModuleFileNameA
GetFileAttributesExW
SetFileInformationByHandle
AreFileApisANSI
user32
GetWindowRect
DestroyWindow
SetWindowPos
ShowWindow
DispatchMessageW
PeekMessageW
MoveWindow
DefWindowProcA
CreateWindowExA
SetLayeredWindowAttributes
TranslateMessage
LoadIconW
SetWindowLongW
GetWindowLongW
RegisterClassExA
GetKeyState
ScreenToClient
GetCapture
ClientToScreen
TrackMouseEvent
GetForegroundWindow
MessageBoxA
LoadCursorW
SetCapture
GetWindow
GetDesktopWindow
mouse_event
GetAsyncKeyState
GetSystemMetrics
SetWindowLongA
FindWindowA
EnumWindows
GetWindowThreadProcessId
SetCursor
SetClipboardData
GetClientRect
GetClipboardData
EmptyClipboard
CloseClipboard
OpenClipboard
ReleaseCapture
SetCursorPos
GetCursorPos
msvcp140
??0?$basic_iostream@DU?$char_traits@D@std@@@std@@QEAA@PEAV?$basic_streambuf@DU?$char_traits@D@std@@@1@@Z
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?setbuf@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAPEAV12@PEAD_J@Z
?sync@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAHXZ
?imbue@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAXAEBVlocale@2@@Z
??1?$basic_iostream@DU?$char_traits@D@std@@@std@@UEAA@XZ
??Bios_base@std@@QEBA_NXZ
?setf@ios_base@std@@QEAAHHH@Z
?pbase@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBAPEADXZ
?fill@?$basic_ios@DU?$char_traits@D@std@@@std@@QEAADD@Z
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@P6AAEAVios_base@1@AEAV21@@Z@Z
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@H@Z
?setw@std@@YA?AU?$_Smanip@_J@1@_J@Z
?widen@?$basic_ios@DU?$char_traits@D@std@@@std@@QEBADD@Z
??Bid@locale@std@@QEAA_KXZ
?always_noconv@codecvt_base@std@@QEBA_NXZ
?_Getcat@?$ctype@D@std@@SA_KPEAPEBVfacet@locale@2@PEBV42@@Z
?getloc@ios_base@std@@QEBA?AVlocale@2@XZ
?xalloc@ios_base@std@@SAHXZ
?iword@ios_base@std@@QEAAAEAJH@Z
??1?$basic_istream@DU?$char_traits@D@std@@@std@@UEAA@XZ
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@P6AAEAV01@AEAV01@@Z@Z
??1?$basic_ostream@DU?$char_traits@D@std@@@std@@UEAA@XZ
?_Xbad_alloc@std@@YAXXZ
?_Xlength_error@std@@YAXPEBD@Z
?clear@?$basic_ios@DU?$char_traits@D@std@@@std@@QEAAXH_N@Z
??1?$basic_ios@DU?$char_traits@D@std@@@std@@UEAA@XZ
?xsputn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA_JPEBD_J@Z
?xsgetn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA_JPEAD_J@Z
?showmanyc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA_JXZ
?sbumpc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHXZ
??1?$basic_streambuf@DU?$char_traits@D@std@@@std@@UEAA@XZ
?setstate@?$basic_ios@DU?$char_traits@D@std@@@std@@QEAAXH_N@Z
?epptr@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBAPEADXZ
?egptr@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBAPEADXZ
?pptr@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBAPEADXZ
?gptr@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBAPEADXZ
?eback@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEBAPEADXZ
?out@?$codecvt@DDU_Mbstatet@@@std@@QEBAHAEAU_Mbstatet@@PEBD1AEAPEBDPEAD3AEAPEAD@Z
?in@?$codecvt@DDU_Mbstatet@@@std@@QEBAHAEAU_Mbstatet@@PEBD1AEAPEBDPEAD3AEAPEAD@Z
??0?$basic_istream@DU?$char_traits@D@std@@@std@@QEAA@PEAV?$basic_streambuf@DU?$char_traits@D@std@@@1@_N@Z
??0?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAA@PEAV?$basic_streambuf@DU?$char_traits@D@std@@@1@_N@Z
??0?$basic_ios@DU?$char_traits@D@std@@@std@@IEAA@XZ
?_Init@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAXXZ
?unshift@?$codecvt@DDU_Mbstatet@@@std@@QEBAHAEAU_Mbstatet@@PEAD1AEAPEAD@Z
?write@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@PEBD_J@Z
?put@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@D@Z
?sputc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHD@Z
?sgetc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHXZ
?getloc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEBA?AVlocale@2@XZ
??0?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAA@XZ
?sputn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAA_JPEBD_J@Z
?flush@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@XZ
?_Osfx@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAXXZ
?snextc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHXZ
?_Getcat@?$codecvt@DDU_Mbstatet@@@std@@SA_KPEAPEBVfacet@locale@2@PEBV42@@Z
?_Ipfx@?$basic_istream@DU?$char_traits@D@std@@@std@@QEAA_N_N@Z
?_Syserror_map@std@@YAPEBDH@Z
?_Random_device@std@@YAIXZ
?id@?$ctype@D@std@@2V0locale@2@A
?_Fiopen@std@@YAPEAU_iobuf@@PEBDHH@Z
?id@?$codecvt@DDU_Mbstatet@@@std@@2V0locale@2@A
?_Xbad_function_call@std@@YAXXZ
?_Winerror_map@std@@YAHH@Z
?cerr@std@@3V?$basic_ostream@DU?$char_traits@D@std@@@1@A
?_Xout_of_range@std@@YAXPEBD@Z
?cin@std@@3V?$basic_istream@DU?$char_traits@D@std@@@1@A
?_Getgloballocale@locale@std@@CAPEAV_Locimp@12@XZ
?cout@std@@3V?$basic_ostream@DU?$char_traits@D@std@@@1@A
?uncaught_exceptions@std@@YAHXZ
?clog@std@@3V?$basic_ostream@DU?$char_traits@D@std@@@1@A
??0_Lockit@std@@QEAA@H@Z
??1_Lockit@std@@QEAA@XZ
d3d9
Direct3DCreate9Ex
d3dx9_43
D3DXVec3Transform
D3DXMatrixTranspose
dwmapi
DwmExtendFrameIntoClientArea
imm32
ImmSetCompositionWindow
ImmReleaseContext
ImmGetContext
ImmSetCandidateWindow
normaliz
IdnToAscii
wldap32
ord50
ord22
ord41
ord26
ord27
ord32
ord45
ord60
ord33
ord35
ord30
ord301
ord211
ord200
ord46
ord217
ord143
ord79
crypt32
CertFreeCertificateChain
CertOpenStore
CertCloseStore
CertGetCertificateChain
CertEnumCertificatesInStore
CertFindCertificateInStore
CertFreeCertificateContext
CryptStringToBinaryA
PFXImportCertStore
CryptDecodeObjectEx
CertAddCertificateContextToStore
CertFindExtension
CertFreeCertificateChainEngine
CryptQueryObject
CertCreateCertificateChainEngine
CertGetNameStringA
ws2_32
sendto
gethostname
ntohl
closesocket
WSASetLastError
socket
freeaddrinfo
WSAIoctl
getaddrinfo
recv
send
setsockopt
WSAGetLastError
bind
WSAStartup
WSACleanup
ntohs
htons
select
connect
__WSAFDIsSet
getpeername
getsockname
ioctlsocket
listen
htonl
recvfrom
accept
getsockopt
rpcrt4
RpcStringFreeA
UuidToStringA
UuidCreate
psapi
GetModuleInformation
userenv
UnloadUserProfile
vcruntime140_1
__CxxFrameHandler4
vcruntime140
memchr
__std_exception_destroy
__std_exception_copy
__std_terminate
strstr
strchr
_CxxThrowException
__current_exception_context
__current_exception
__C_specific_handler
strrchr
memset
memmove
memcpy
memcmp
api-ms-win-crt-heap-l1-1-0
malloc
free
calloc
_set_new_mode
realloc
_callnewh
api-ms-win-crt-utility-l1-1-0
qsort
api-ms-win-crt-runtime-l1-1-0
__p___argv
__p___argc
strerror
_exit
_initterm_e
_initterm
_get_initial_narrow_environment
_register_thread_local_exe_atexit_callback
_set_app_type
_seh_filter_exe
terminate
_cexit
_crt_atexit
_register_onexit_function
_initialize_onexit_table
_initialize_narrow_environment
_configure_narrow_argv
_c_exit
__sys_nerr
_invalid_parameter_noinfo
_getpid
_resetstkoflw
_errno
system
_invalid_parameter_noinfo_noreturn
exit
abort
_beginthreadex
api-ms-win-crt-stdio-l1-1-0
_read
fflush
fclose
__stdio_common_vsprintf_s
fgetc
_write
_isatty
__acrt_iob_func
feof
fwrite
fputs
__p__commode
_close
_lseeki64
_open
_fileno
_set_fmode
__stdio_common_vsprintf
_popen
_pclose
fgets
fopen_s
fread_s
fputc
fgetpos
setvbuf
__stdio_common_vsscanf
_wfopen
ungetc
fsetpos
fread
fseek
ftell
__stdio_common_vfprintf
_get_stream_buffer_pointers
_fseeki64
fopen
api-ms-win-crt-math-l1-1-0
sinf
powf
pow
logf
fmodf
cosf
ceilf
acosf
_dsign
_dclass
sqrtf
__setusermatherr
api-ms-win-crt-string-l1-1-0
strcpy_s
strncmp
_strdup
strncpy
_wcsicmp
strcmp
strcspn
isupper
strpbrk
strspn
tolower
api-ms-win-crt-convert-l1-1-0
atoi
strtoul
strtod
strtoll
strtoull
strtol
api-ms-win-crt-filesystem-l1-1-0
_access
_fstat64
remove
rename
_stat64
_unlock_file
_lock_file
_unlink
api-ms-win-crt-locale-l1-1-0
___lc_codepage_func
localeconv
_configthreadlocale
api-ms-win-crt-time-l1-1-0
_time64
_gmtime64
advapi32
OpenProcessToken
AddAccessAllowedAce
GetLengthSid
GetTokenInformation
SetSecurityInfo
CopySid
ConvertSidToStringSidA
CryptAcquireContextA
CryptReleaseContext
CryptGetHashParam
CryptGenRandom
CryptCreateHash
CryptHashData
CryptDestroyHash
CryptDestroyKey
CryptImportKey
CryptEncrypt
IsValidSid
InitializeAcl
shell32
ShellExecuteA
Sections
.text Size: 823KB - Virtual size: 823KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 178KB - Virtual size: 177KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 937KB - Virtual size: 940KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 32KB - Virtual size: 31KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 5KB - Virtual size: 4KB
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