Static task
static1
Behavioral task
behavioral1
Sample
BluLoaderEx.exe
Resource
win10-20230831-es
Behavioral task
behavioral2
Sample
BluLoaderEx.exe
Resource
win10v2004-20230831-es
General
-
Target
BluLoaderEx.exe
-
Size
1.1MB
-
MD5
6b4b85ffcab8bfcd52790d58cc28d945
-
SHA1
7abe4e150f229e92ed13ddadd721ae0cbf478da5
-
SHA256
c1df0371b80ababb70546478fa97ed3ca168700f898ce06a5efcab553952ebdf
-
SHA512
5631c80b18fff1c1d1bf175fc21d536d5ac4abaeb827537d4a618b5ac20601e4b2d960ed942e70001692601ba3743f7b1e4f54b1aac18237f7d91c39a71fd63a
-
SSDEEP
24576:VLUwlnqQTTbmtcpsrE8nF8Pz6tO7MNV4AfgJWNFi1TDzn244xyT:VLUwxiRw8nqGtO/AoJDTXn2
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource BluLoaderEx.exe
Files
-
BluLoaderEx.exe.exe windows x64
b2a4cd49398c42d184de0ea6d54ebcb9
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
ws2_32
ioctlsocket
listen
htonl
accept
select
__WSAFDIsSet
freeaddrinfo
getaddrinfo
WSACleanup
WSAStartup
inet_pton
WSAIoctl
WSASetLastError
socket
setsockopt
ntohs
htons
getsockopt
getsockname
getpeername
connect
bind
recv
WSAGetLastError
closesocket
WSAWaitForMultipleEvents
WSAResetEvent
WSAEventSelect
WSAEnumNetworkEvents
WSACreateEvent
WSACloseEvent
send
advapi32
CryptAcquireContextA
CryptReleaseContext
CryptGetHashParam
CryptGenRandom
CryptCreateHash
CryptHashData
CryptDestroyHash
crypt32
CertFreeCertificateChainEngine
CertCreateCertificateChainEngine
CryptQueryObject
CertGetNameStringA
CertFreeCertificateChain
CertAddCertificateContextToStore
CryptDecodeObjectEx
PFXImportCertStore
CryptStringToBinaryA
CertFreeCertificateContext
CertFindCertificateInStore
CertEnumCertificatesInStore
CertCloseStore
CertOpenStore
CertGetCertificateChain
CertFindExtension
urlmon
URLDownloadToFileA
kernel32
FindFirstFileW
FindClose
CreateFileW
CreateDirectoryW
GetLocaleInfoEx
FormatMessageA
LocalFree
InitializeSListHead
GetSystemTimeAsFileTime
GetCurrentThreadId
GetCurrentProcessId
GetStartupInfoW
IsDebuggerPresent
IsProcessorFeaturePresent
TerminateProcess
GetCurrentProcess
SetUnhandledExceptionFilter
UnhandledExceptionFilter
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
GetFileInformationByHandleEx
WriteProcessMemory
GetModuleHandleW
K32EnumProcessModulesEx
OpenProcess
Sleep
K32GetModuleFileNameExA
LoadLibraryA
CloseHandle
VirtualProtectEx
VirtualAllocEx
CreateRemoteThread
VirtualFreeEx
MultiByteToWideChar
GlobalAlloc
GlobalLock
WideCharToMultiByte
GlobalUnlock
GetModuleHandleA
QueryPerformanceFrequency
GetProcAddress
VerSetConditionMask
FreeLibrary
QueryPerformanceCounter
EnterCriticalSection
LeaveCriticalSection
InitializeCriticalSectionEx
DeleteCriticalSection
SleepEx
GetSystemDirectoryA
GetLastError
GetEnvironmentVariableA
SetLastError
FormatMessageW
MoveFileExA
GetTickCount
WaitForSingleObjectEx
VerifyVersionInfoW
CreateFileA
GetFileSizeEx
ReadFile
CreateEventW
SetFileInformationByHandle
AreFileApisANSI
GetFileAttributesExW
GlobalFree
ResetEvent
SetEvent
WaitForSingleObject
InitializeCriticalSectionAndSpinCount
user32
DispatchMessageA
TranslateMessage
PeekMessageA
PostQuitMessage
UpdateWindow
GetWindowLongW
AdjustWindowRectEx
GetKeyState
GetMessageExtraInfo
LoadCursorA
DestroyWindow
GetDC
SetWindowPos
MonitorFromWindow
EnumDisplayMonitors
ScreenToClient
SetWindowTextW
WindowFromPoint
GetDesktopWindow
GetCapture
SetWindowLongA
ClientToScreen
IsChild
TrackMouseEvent
GetMonitorInfoA
GetForegroundWindow
DefWindowProcA
CreateWindowExA
SetLayeredWindowAttributes
SetFocus
BringWindowToTop
SetCapture
SetCursor
SetWindowLongW
GetClientRect
UnregisterClassA
ShowWindow
IsWindowUnicode
RegisterClassExA
ReleaseCapture
SetForegroundWindow
IsIconic
SetCursorPos
ReleaseDC
GetCursorPos
OpenClipboard
CloseClipboard
EmptyClipboard
GetClipboardData
SetClipboardData
GetWindowThreadProcessId
FindWindowA
GetWindowRect
gdi32
CreateRectRgn
GetDeviceCaps
DeleteObject
d3dcompiler_47
D3DCompile
msvcp140
?_Ipfx@?$basic_istream@DU?$char_traits@D@std@@@std@@QEAA_N_N@Z
?snextc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHXZ
?sgetc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHXZ
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?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
??0?$basic_iostream@DU?$char_traits@D@std@@@std@@QEAA@PEAV?$basic_streambuf@DU?$char_traits@D@std@@@1@@Z
?cerr@std@@3V?$basic_ostream@DU?$char_traits@D@std@@@1@A
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@P6AAEAV01@AEAV01@@Z@Z
?_Osfx@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAXXZ
?widen@?$basic_ios@DU?$char_traits@D@std@@@std@@QEBADD@Z
?sputn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAA_JPEBD_J@Z
?sputc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHD@Z
?_Throw_C_error@std@@YAXH@Z
??1_Lockit@std@@QEAA@XZ
??0_Lockit@std@@QEAA@H@Z
?_Getgloballocale@locale@std@@CAPEAV_Locimp@12@XZ
?_Xbad_alloc@std@@YAXXZ
?_Xout_of_range@std@@YAXPEBD@Z
?_Winerror_map@std@@YAHH@Z
?_Xbad_function_call@std@@YAXXZ
?id@?$codecvt@DDU_Mbstatet@@@std@@2V0locale@2@A
?_Fiopen@std@@YAPEAU_iobuf@@PEBDHH@Z
?_Xlength_error@std@@YAXPEBD@Z
?_Syserror_map@std@@YAPEBDH@Z
?_Getcat@?$codecvt@DDU_Mbstatet@@@std@@SA_KPEAPEBVfacet@locale@2@PEBV42@@Z
?put@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@D@Z
?write@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@PEBD_J@Z
?unshift@?$codecvt@DDU_Mbstatet@@@std@@QEBAHAEAU_Mbstatet@@PEAD1AEAPEAD@Z
??0?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAA@XZ
?getloc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEBA?AVlocale@2@XZ
?_Init@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAXXZ
?in@?$codecvt@DDU_Mbstatet@@@std@@QEBAHAEAU_Mbstatet@@PEBD1AEAPEBDPEAD3AEAPEAD@Z
?out@?$codecvt@DDU_Mbstatet@@@std@@QEBAHAEAU_Mbstatet@@PEBD1AEAPEBDPEAD3AEAPEAD@Z
?_Pninc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAPEADXZ
?setstate@?$basic_ios@DU?$char_traits@D@std@@@std@@QEAAXH_N@Z
??0?$basic_ios@DU?$char_traits@D@std@@@std@@IEAA@XZ
??0?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAA@PEAV?$basic_streambuf@DU?$char_traits@D@std@@@1@_N@Z
??0?$basic_istream@DU?$char_traits@D@std@@@std@@QEAA@PEAV?$basic_streambuf@DU?$char_traits@D@std@@@1@_N@Z
??1?$basic_streambuf@DU?$char_traits@D@std@@@std@@UEAA@XZ
?sbumpc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHXZ
?showmanyc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA_JXZ
?xsgetn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA_JPEAD_J@Z
?xsputn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA_JPEBD_J@Z
??1?$basic_ios@DU?$char_traits@D@std@@@std@@UEAA@XZ
?clear@?$basic_ios@DU?$char_traits@D@std@@@std@@QEAAXH_N@Z
??1?$basic_ostream@DU?$char_traits@D@std@@@std@@UEAA@XZ
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??1?$basic_istream@DU?$char_traits@D@std@@@std@@UEAA@XZ
?always_noconv@codecvt_base@std@@QEBA_NXZ
??Bid@locale@std@@QEAA_KXZ
?uncaught_exception@std@@YA_NXZ
_Mtx_init_in_situ
_Mtx_destroy_in_situ
_Mtx_lock
_Mtx_unlock
imm32
ImmSetCompositionWindow
ImmReleaseContext
ImmGetContext
ImmSetCandidateWindow
dwmapi
DwmEnableBlurBehindWindow
DwmGetColorizationColor
DwmIsCompositionEnabled
DwmExtendFrameIntoClientArea
d3d11
D3D11CreateDeviceAndSwapChain
d3dx11_43
D3DX11CreateShaderResourceViewFromMemory
vcruntime140_1
__CxxFrameHandler4
vcruntime140
__std_exception_copy
strstr
strchr
_CxxThrowException
memchr
memcpy
__std_exception_destroy
memset
memcmp
strrchr
__current_exception
__current_exception_context
__C_specific_handler
memmove
__std_terminate
api-ms-win-crt-stdio-l1-1-0
fflush
fgets
fputc
__stdio_common_vfprintf
__acrt_iob_func
_wfopen
fclose
fopen
fgetc
fseek
ftell
_get_stream_buffer_pointers
_fseeki64
fread
fsetpos
ungetc
setvbuf
fgetpos
__stdio_common_vsprintf
feof
fwrite
__p__commode
_set_fmode
fputs
__stdio_common_vsscanf
api-ms-win-crt-runtime-l1-1-0
_cexit
_seh_filter_exe
_set_app_type
_get_narrow_winmain_command_line
_initterm
_initterm_e
_exit
system
_c_exit
_register_thread_local_exe_atexit_callback
terminate
_beginthreadex
_initialize_narrow_environment
_errno
__sys_errlist
_invalid_parameter_noinfo_noreturn
__sys_nerr
_crt_atexit
_initialize_onexit_table
_wassert
_register_onexit_function
exit
_configure_narrow_argv
api-ms-win-crt-heap-l1-1-0
free
_callnewh
_set_new_mode
malloc
realloc
calloc
api-ms-win-crt-math-l1-1-0
ceilf
acosf
sqrtf
_dclass
fmodf
sinf
_dsign
cosf
__setusermatherr
api-ms-win-crt-convert-l1-1-0
strtoull
strtoll
strtod
wcstombs
strtoul
strtol
api-ms-win-crt-filesystem-l1-1-0
_lock_file
_unlock_file
_stat64
_access
_unlink
api-ms-win-crt-string-l1-1-0
strncpy
strncmp
tolower
isupper
_strdup
strcpy_s
strcspn
strpbrk
strcmp
strspn
api-ms-win-crt-locale-l1-1-0
_configthreadlocale
___lc_codepage_func
localeconv
api-ms-win-crt-utility-l1-1-0
qsort
api-ms-win-crt-time-l1-1-0
strftime
_time64
_gmtime64
api-ms-win-crt-multibyte-l1-1-0
_mbsnbcmp
_mbspbrk
_mbschr
_mbsnbcpy
Sections
.text Size: 759KB - Virtual size: 759KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 195KB - Virtual size: 195KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 164KB - Virtual size: 166KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 33KB - Virtual size: 32KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 512B - Virtual size: 488B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ