Static task
static1
Behavioral task
behavioral1
Sample
loaderbypass.exe
Resource
win10v2004-20240802-en
General
-
Target
loaderbypass.exe
-
Size
4.2MB
-
MD5
2b846016ffbaf3f4a55dabcd99d08f47
-
SHA1
e2bd4367d29834bc018ff0bf7b10ebcf09031813
-
SHA256
4807ca7aee38d99c14953e73e22037fc77dec94caf0c39aeab1ef3c0c611b67f
-
SHA512
671f810e647186954bf558f2ec2d964eb00252525f86323ad1c8235c9c89405973e5a5b0b63c9653c05f7f15c7689380e4b562d92304bbede0407ebe22b4f751
-
SSDEEP
49152:fWhrN5F81EONz2g6125KbgnFXSrPP5HeWrxDkE5kJINf6+2m4urYIZmuQv/RMNCD:OhrN81nN+tesf1l4fOsnPAPxh
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource loaderbypass.exe
Files
-
loaderbypass.exe.exe windows:6 windows x64 arch:x64
6dca40afd5ad858053074e66d8864bbb
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
MapViewOfFile
UnmapViewOfFile
CreateFileMappingA
LeaveCriticalSection
InitializeCriticalSectionEx
DeleteCriticalSection
SleepEx
GetSystemDirectoryA
VerifyVersionInfoA
MoveFileExA
WaitForSingleObjectEx
GetEnvironmentVariableA
GetStdHandle
GetFileType
ExitProcess
WaitForMultipleObjects
SetLastError
FormatMessageA
InitializeCriticalSectionAndSpinCount
SetEvent
CreateEventW
CreateFileA
UnhandledExceptionFilter
SetUnhandledExceptionFilter
IsProcessorFeaturePresent
GetStartupInfoW
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
VirtualProtectEx
CreateThread
K32GetModuleFileNameExA
OpenProcess
DuplicateHandle
GetProcessId
TerminateProcess
VirtualAlloc
VirtualProtect
GetTickCount64
CheckRemoteDebuggerPresent
IsDebuggerPresent
HeapFree
HeapAlloc
ReadFile
ResetEvent
GetFileSizeEx
OpenThread
QueryPerformanceCounter
FreeLibrary
VerSetConditionMask
QueryPerformanceFrequency
LoadLibraryA
GlobalUnlock
GetTickCount
GetCurrentProcessId
GetModuleHandleW
ReadProcessMemory
WideCharToMultiByte
GlobalLock
GlobalFree
GlobalAlloc
MultiByteToWideChar
SetThreadContext
CreateProcessA
LocalFree
VirtualAllocEx
GetProcAddress
GetThreadContext
CloseHandle
Process32Next
GetFileAttributesA
GetLastError
Sleep
CreateToolhelp32Snapshot
GetModuleHandleA
ResumeThread
GetCurrentProcess
WriteProcessMemory
PeekNamedPipe
Process32First
EnterCriticalSection
user32
SetClipboardData
GetClipboardData
EmptyClipboard
CloseClipboard
OpenClipboard
GetCursorPos
GetWindowRect
SetCursorPos
ReleaseCapture
IsWindowUnicode
GetClientRect
SetCursor
SetCapture
GetForegroundWindow
MoveWindow
FindWindowA
TrackMouseEvent
ClientToScreen
GetCapture
ScreenToClient
LoadCursorA
GetMessageExtraInfo
GetKeyState
UpdateWindow
GetWindowTextLengthA
DispatchMessageA
DestroyWindow
IsWindowVisible
CreateWindowExW
GetSystemMetrics
UnregisterClassW
PostQuitMessage
PeekMessageA
LoadIconA
SetWindowsHookA
FindWindowW
TranslateMessage
SetLayeredWindowAttributes
DefWindowProcA
EnumWindows
GetWindowLongA
GetWindowTextA
SetWindowLongA
ShowWindow
RegisterClassExW
advapi32
RegDeleteValueA
CryptReleaseContext
CryptGetHashParam
CryptGenRandom
CryptCreateHash
CryptHashData
CryptDestroyHash
CryptDestroyKey
CryptImportKey
CryptEncrypt
QueryServiceStatus
CloseServiceHandle
OpenSCManagerA
ControlService
OpenServiceA
AdjustTokenPrivileges
RegGetValueA
ConvertSidToStringSidA
OpenProcessToken
CryptAcquireContextA
RegSetKeyValueA
GetTokenInformation
msvcp140
_Cnd_do_broadcast_at_thread_exit
_Thrd_detach
?sputn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAA_JPEBD_J@Z
?_Getcat@?$time_get@DV?$istreambuf_iterator@DU?$char_traits@D@std@@@std@@@std@@SA_KPEAPEBVfacet@locale@2@PEBV42@@Z
?_Osfx@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAXXZ
?flush@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@XZ
?_Ipfx@?$basic_istream@DU?$char_traits@D@std@@@std@@QEAA_N_N@Z
?get@?$time_get@DV?$istreambuf_iterator@DU?$char_traits@D@std@@@std@@@std@@QEBA?AV?$istreambuf_iterator@DU?$char_traits@D@std@@@2@V32@0AEAVios_base@2@AEAHPEAUtm@@PEBD4@Z
?sputc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHD@Z
?setstate@?$basic_ios@DU?$char_traits@D@std@@@std@@QEAAXH_N@Z
??0?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAA@XZ
?_Pninc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAPEADXZ
??0?$basic_ios@DU?$char_traits@D@std@@@std@@IEAA@XZ
??0?$basic_istream@DU?$char_traits@D@std@@@std@@QEAA@PEAV?$basic_streambuf@DU?$char_traits@D@std@@@1@_N@Z
??0?$basic_iostream@DU?$char_traits@D@std@@@std@@QEAA@PEAV?$basic_streambuf@DU?$char_traits@D@std@@@1@@Z
??1?$basic_streambuf@DU?$char_traits@D@std@@@std@@UEAA@XZ
?_Lock@?$basic_streambuf@DU?$char_traits@D@std@@@std@@UEAAXXZ
?_Unlock@?$basic_streambuf@DU?$char_traits@D@std@@@std@@UEAAXXZ
?showmanyc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA_JXZ
?uflow@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAHXZ
?_Throw_C_error@std@@YAXH@Z
?xsputn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA_JPEBD_J@Z
?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?$basic_ios@DU?$char_traits@D@std@@@std@@UEAA@XZ
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@P6AAEAVios_base@1@AEAV21@@Z@Z
??1?$basic_istream@DU?$char_traits@D@std@@@std@@UEAA@XZ
??5?$basic_istream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@AEAI@Z
??1?$basic_iostream@DU?$char_traits@D@std@@@std@@UEAA@XZ
?getloc@ios_base@std@@QEBA?AVlocale@2@XZ
??Bid@locale@std@@QEAA_KXZ
_Query_perf_frequency
_Thrd_sleep
_Query_perf_counter
_Xtime_get_ticks
?_Xlength_error@std@@YAXPEBD@Z
??1_Lockit@std@@QEAA@XZ
??0_Lockit@std@@QEAA@H@Z
?_Throw_Cpp_error@std@@YAXH@Z
?uncaught_exceptions@std@@YAHXZ
?_Getgloballocale@locale@std@@CAPEAV_Locimp@12@XZ
?_Xbad_alloc@std@@YAXXZ
?_Xout_of_range@std@@YAXPEBD@Z
?id@?$time_get@DV?$istreambuf_iterator@DU?$char_traits@D@std@@@std@@@std@@2V0locale@2@A
?_Xbad_function_call@std@@YAXXZ
?xsgetn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA_JPEAD_J@Z
ws2_32
send
recv
closesocket
WSAGetLastError
bind
connect
getpeername
getsockname
getsockopt
htons
setsockopt
ntohl
gethostname
sendto
recvfrom
freeaddrinfo
getaddrinfo
select
__WSAFDIsSet
ioctlsocket
listen
htonl
accept
WSACleanup
WSAStartup
WSAIoctl
WSASetLastError
socket
ntohs
normaliz
IdnToAscii
crypt32
CertCreateCertificateChainEngine
CertFreeCertificateChainEngine
CertGetCertificateChain
CertFreeCertificateChain
CryptQueryObject
CertGetNameStringA
CertFindExtension
CertAddCertificateContextToStore
CryptDecodeObjectEx
PFXImportCertStore
CryptStringToBinaryA
CertFreeCertificateContext
CertFindCertificateInStore
CertEnumCertificatesInStore
CertOpenStore
CertCloseStore
wldap32
ord211
ord46
ord60
ord45
ord50
ord41
ord22
ord217
ord27
ord32
ord33
ord35
ord79
ord143
ord301
ord200
ord30
ord26
imm32
ImmSetCandidateWindow
ImmReleaseContext
ImmGetContext
ImmSetCompositionWindow
d3dcompiler_43
D3DCompile
dwmapi
DwmExtendFrameIntoClientArea
ntdll
RtlLookupFunctionEntry
RtlVirtualUnwind
RtlCaptureContext
d3d11
D3D11CreateDeviceAndSwapChain
d3dx11_43
D3DX11CreateShaderResourceViewFromMemory
vcruntime140_1
__CxxFrameHandler4
vcruntime140
__current_exception
memcmp
memchr
memset
memcpy
longjmp
strrchr
wcsstr
strchr
strstr
__std_terminate
__std_exception_copy
__std_exception_destroy
__C_specific_handler
__intrinsic_setjmp
_CxxThrowException
memmove
__current_exception_context
api-ms-win-crt-runtime-l1-1-0
_cexit
_seh_filter_exe
_set_app_type
_crt_atexit
_get_narrow_winmain_command_line
_initterm
_initterm_e
_exit
_c_exit
_register_thread_local_exe_atexit_callback
_register_onexit_function
_initialize_onexit_table
_errno
_configure_narrow_argv
terminate
__sys_nerr
_invalid_parameter_noinfo_noreturn
_getpid
_beginthreadex
exit
strerror
_initialize_narrow_environment
api-ms-win-crt-heap-l1-1-0
malloc
_callnewh
_set_new_mode
calloc
free
realloc
api-ms-win-crt-string-l1-1-0
strcspn
strspn
strcmp
isupper
toupper
_strdup
strncpy
tolower
strpbrk
strncmp
api-ms-win-crt-math-l1-1-0
ceilf
cosf
acosf
_dclass
fmodf
sqrtf
sinf
_dsign
__setusermatherr
api-ms-win-crt-convert-l1-1-0
strtoll
atoi
strtoull
strtoul
strtod
strtol
api-ms-win-crt-time-l1-1-0
strftime
_gmtime64
_time64
api-ms-win-crt-locale-l1-1-0
localeconv
_configthreadlocale
api-ms-win-crt-stdio-l1-1-0
fgets
fread
__stdio_common_vsscanf
fopen
_open
_close
fwrite
fputs
feof
__stdio_common_vfprintf
fseek
fclose
fflush
__acrt_iob_func
ftell
_write
_read
fputc
__stdio_common_vsprintf
__p__commode
_set_fmode
_wfopen
_lseeki64
api-ms-win-crt-utility-l1-1-0
qsort
api-ms-win-crt-environment-l1-1-0
getenv
api-ms-win-crt-filesystem-l1-1-0
_access
_unlink
_fstat64
_stat64
Sections
.text Size: 1.1MB - Virtual size: 1.1MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 289KB - Virtual size: 289KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 357KB - Virtual size: 360KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 49KB - Virtual size: 48KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.>7o Size: 2.5MB - Virtual size: 2.5MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.reloc Size: 5KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 512B - Virtual size: 480B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ