byfron_bypass[.]exe

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General

Target

byfron_bypass.exe
Size

21KB
MD5

3988211e29842fbe616a3913560fe6f9
SHA1

7a939a98698521479cd65823e3ac6c664300fb62
SHA256

8caeaa8cf15b2f1af6add584e4fbe9e48e4fc5b3d99c60705477249062794ea9
SHA512

806e0205a2e9905b347c94c0d8cd07f12af3aee6798a11700f21ee466211fe872f44bef3d6a64ab5509b3ed9b07268f8b2620a173572e9825802ed00d88bd287
SSDEEP

384:v7LKrvmH/Q09bq/pKmmyQtYVTRAG3g2jmt:+MIKmmH23gS6

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 x64 arch:x64

aa80301580f9d23e072a9cbbce589e0c

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

PDB Paths

C:\Users\User\Downloads\byfron-bypass-Release\x64\Release\byfron_bypass.pdb

Imports

kernel32

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

advapi32

LookupPrivilegeNameW
OpenProcessToken
GetTokenInformation
AdjustTokenPrivileges

msvcp140

?flush@?$basic_ostream@_WU?$char_traits@_W@std@@@std@@QEAAAEAV12@XZ
?sputc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHD@Z
?sputc@?$basic_streambuf@_WU?$char_traits@_W@std@@@std@@QEAAG_W@Z
?_Osfx@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAXXZ
?put@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@D@Z
?setstate@?$basic_ios@DU?$char_traits@D@std@@@std@@QEAAXH_N@Z
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@P6AAEAV01@AEAV01@@Z@Z
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@K@Z
??6?$basic_ostream@_WU?$char_traits@_W@std@@@std@@QEAAAEAV01@P6AAEAV01@AEAV01@@Z@Z
?good@ios_base@std@@QEBA_NXZ
?put@?$basic_ostream@_WU?$char_traits@_W@std@@@std@@QEAAAEAV12@_W@Z
?widen@?$basic_ios@_WU?$char_traits@_W@std@@@std@@QEBA_WD@Z
?cout@std@@3V?$basic_ostream@DU?$char_traits@D@std@@@1@A
?uncaught_exception@std@@YA_NXZ
?flush@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@XZ
?wcout@std@@3V?$basic_ostream@_WU?$char_traits@_W@std@@@1@A
?cerr@std@@3V?$basic_ostream@DU?$char_traits@D@std@@@1@A
?_Osfx@?$basic_ostream@_WU?$char_traits@_W@std@@@std@@QEAAXXZ
?sputn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAA_JPEBD_J@Z
?setstate@?$basic_ios@_WU?$char_traits@_W@std@@@std@@QEAAXH_N@Z
?widen@?$basic_ios@DU?$char_traits@D@std@@@std@@QEBADD@Z
?sputn@?$basic_streambuf@_WU?$char_traits@_W@std@@@std@@QEAA_JPEB_W_J@Z

vcruntime140_1

__CxxFrameHandler4

vcruntime140

__current_exception_context
__current_exception
_CxxThrowException
__C_specific_handler
__std_exception_copy
__std_exception_destroy
memset
__std_terminate
memcpy

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

_wcsicmp

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

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

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

_callnewh
malloc
free
_set_new_mode

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

__setusermatherr

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

_set_fmode
__p__commode

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

_configthreadlocale

Sections

.text
Size: 8KB - Virtual size: 7KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 9KB - Virtual size: 9KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 1024B - Virtual size: 660B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 512B - Virtual size: 88B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

aa80301580f9d23e072a9cbbce589e0c

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

kernel32

advapi32

msvcp140

vcruntime140_1

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: 8KB - Virtual size: 7KB

.rdata Size: 9KB - Virtual size: 9KB

.data Size: 512B - Virtual size: 1KB

.pdata Size: 1024B - Virtual size: 660B

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

.reloc Size: 512B - Virtual size: 88B

.text
Size: 8KB - Virtual size: 7KB

.rdata
Size: 9KB - Virtual size: 9KB

.data
Size: 512B - Virtual size: 1KB

.pdata
Size: 1024B - Virtual size: 660B

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

.reloc
Size: 512B - Virtual size: 88B