byfron_bypass[.]exe

Resubmissions

29/10/2023, 02:29

231029-cy3mvaga66 3

29/10/2023, 02:28

231029-cydzgsec8y 3

Sharing

Copy URL Twitter E-mail

General

Target

byfron_bypass.exe
Size

18KB
MD5

5bd350bc71289dbd7c51db52c088870d
SHA1

2f5ea7492c82f84c2e1c7731fe761f9ec6999e2a
SHA256

2220cf943e357754b35ea78fc1b0ec8801130409dc0e5c49854957f140dd2852
SHA512

dab49aac7c7b03b92e4bef6022ff7beb00ed2b30313f4d5b9e5789434058a7c21d3065f0f2a6ddaf3be1e8790241fb0a36ef5e888f6a4cbd7478cde4df83c3c6
SSDEEP

384:GdCbT8Fa1Tu4nX19ZDkOJtLgwrbj8qL2wNoFmqOk7o9:9dFXDkO3gwr9LS7o9

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
byfron_bypass.exe

Files

byfron_bypass.exe
.exe windows:6 windows x86

8d7100c899326ed266ce40c687291c9d

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE

Imports

kernel32

GetLastError
Process32NextW
CreateToolhelp32Snapshot
CloseHandle
OpenProcess
K32GetProcessImageFileNameW
Thread32First
Process32FirstW
Thread32Next
IsDebuggerPresent
InitializeSListHead
GetSystemTimeAsFileTime
GetCurrentThreadId
GetCurrentProcessId
QueryPerformanceCounter
IsProcessorFeaturePresent
TerminateProcess
GetCurrentProcess
SetUnhandledExceptionFilter
UnhandledExceptionFilter
GetModuleHandleW

advapi32

LookupPrivilegeNameW
OpenProcessToken
GetTokenInformation
AdjustTokenPrivileges

msvcp140

?widen@?$basic_ios@_WU?$char_traits@_W@std@@@std@@QBE_WD@Z
?put@?$basic_ostream@DU?$char_traits@D@std@@@std@@QAEAAV12@D@Z
?put@?$basic_ostream@_WU?$char_traits@_W@std@@@std@@QAEAAV12@_W@Z
?flush@?$basic_ostream@_WU?$char_traits@_W@std@@@std@@QAEAAV12@XZ
?sputc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QAEHD@Z
?sputc@?$basic_streambuf@_WU?$char_traits@_W@std@@@std@@QAEG_W@Z
?_Osfx@?$basic_ostream@DU?$char_traits@D@std@@@std@@QAEXXZ
?flush@?$basic_ostream@DU?$char_traits@D@std@@@std@@QAEAAV12@XZ
?setstate@?$basic_ios@DU?$char_traits@D@std@@@std@@QAEXH_N@Z
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QAEAAV01@P6AAAV01@AAV01@@Z@Z
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QAEAAV01@K@Z
??6?$basic_ostream@_WU?$char_traits@_W@std@@@std@@QAEAAV01@P6AAAV01@AAV01@@Z@Z
?good@ios_base@std@@QBE_NXZ
?widen@?$basic_ios@DU?$char_traits@D@std@@@std@@QBEDD@Z
?sputn@?$basic_streambuf@_WU?$char_traits@_W@std@@@std@@QAE_JPB_W_J@Z
?setstate@?$basic_ios@_WU?$char_traits@_W@std@@@std@@QAEXH_N@Z
?sputn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QAE_JPBD_J@Z
?_Osfx@?$basic_ostream@_WU?$char_traits@_W@std@@@std@@QAEXXZ
?_Xlength_error@std@@YAXPBD@Z
?cerr@std@@3V?$basic_ostream@DU?$char_traits@D@std@@@1@A
?wcout@std@@3V?$basic_ostream@_WU?$char_traits@_W@std@@@1@A
?uncaught_exception@std@@YA_NXZ
?cout@std@@3V?$basic_ostream@DU?$char_traits@D@std@@@1@A

vcruntime140

memset
__current_exception
_CxxThrowException
__std_terminate
__std_exception_copy
__CxxFrameHandler3
__current_exception_context
_except_handler4_common
__std_exception_destroy

api-ms-win-crt-string-l1-1-0

_wcsicmp

api-ms-win-crt-runtime-l1-1-0

_invalid_parameter_noinfo_noreturn
_c_exit
_cexit
_register_onexit_function
_crt_atexit
_controlfp_s
terminate
__p___argv
__p___argc
_exit
_register_thread_local_exe_atexit_callback
_seh_filter_exe
_initialize_onexit_table
_initterm_e
_initterm
_initialize_narrow_environment
_configure_narrow_argv
exit
_set_app_type
_get_initial_narrow_environment

api-ms-win-crt-heap-l1-1-0

_set_new_mode
malloc
free
_callnewh

api-ms-win-crt-math-l1-1-0

__setusermatherr

api-ms-win-crt-stdio-l1-1-0

__p__commode
_set_fmode

api-ms-win-crt-locale-l1-1-0

_configthreadlocale

Sections

.text
Size: 7KB - Virtual size: 7KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 7KB - Virtual size: 7KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 1020B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 512B - Virtual size: 480B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 1024B - Virtual size: 876B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Resubmissions

Sharing

General

Malware Config

Signatures

Files

8d7100c899326ed266ce40c687291c9d

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

advapi32

msvcp140

vcruntime140

api-ms-win-crt-string-l1-1-0

api-ms-win-crt-runtime-l1-1-0

api-ms-win-crt-heap-l1-1-0

api-ms-win-crt-math-l1-1-0

api-ms-win-crt-stdio-l1-1-0

api-ms-win-crt-locale-l1-1-0

Sections

.text Size: 7KB - Virtual size: 7KB

.rdata Size: 7KB - Virtual size: 7KB

.data Size: 512B - Virtual size: 1020B

.rsrc Size: 512B - Virtual size: 480B

.reloc Size: 1024B - Virtual size: 876B

.text
Size: 7KB - Virtual size: 7KB

.rdata
Size: 7KB - Virtual size: 7KB

.data
Size: 512B - Virtual size: 1020B

.rsrc
Size: 512B - Virtual size: 480B

.reloc
Size: 1024B - Virtual size: 876B