Static task
static1
Behavioral task
behavioral1
Sample
bios.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
bios.exe
Resource
win10v2004-20220812-en
General
-
Target
bios.exe
-
Size
702KB
-
MD5
6ab27eb6a486f4794145309ad0d18e91
-
SHA1
e414a7523480637747d3913662baa341aeb6abbf
-
SHA256
131af227a519d4daf8233fb5139fd7ae75f594673b91eac9f0c108b0bbe87b1e
-
SHA512
ac6966c6792e821ba927f1207c247596f19057900ae8108841fa00aa1af8afa724bc9417b3bd5643d1656cafaedce5f001f3652722e364f9b104bfcd44ed7457
-
SSDEEP
6144:YhSsGfYKXjBnu7YVnPPVHFnEXbw2Y3h3NWqU/xdwpN8T4LUEDW9VXnHFudT7coWS:PsGAEVnPn8w2UNiX0gEOpnHFutV5ny
Malware Config
Signatures
-
Nirsoft 1 IoCs
resource yara_rule sample Nirsoft
Files
-
bios.exe.exe windows x64
644bdbab4166b3d54b5353d2fccf9160
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
msvcp140
?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
?_Init@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAXXZ
??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
??1?$basic_streambuf@DU?$char_traits@D@std@@@std@@UEAA@XZ
?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
??1?$basic_ostream@DU?$char_traits@D@std@@@std@@UEAA@XZ
?write@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@PEBD_J@Z
?always_noconv@codecvt_base@std@@QEBA_NXZ
??Bid@locale@std@@QEAA_KXZ
?getloc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEBA?AVlocale@2@XZ
??0?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAA@XZ
?unshift@?$codecvt@DDU_Mbstatet@@@std@@QEBAHAEAU_Mbstatet@@PEAD1AEAPEAD@Z
?_Getcat@?$codecvt@DDU_Mbstatet@@@std@@SA_KPEAPEBVfacet@locale@2@PEBV42@@Z
?_Xlength_error@std@@YAXPEBD@Z
?_Fiopen@std@@YAPEAU_iobuf@@PEBDHH@Z
?id@?$codecvt@DDU_Mbstatet@@@std@@2V0locale@2@A
?_Getgloballocale@locale@std@@CAPEAV_Locimp@12@XZ
??0_Lockit@std@@QEAA@H@Z
?setstate@?$basic_ios@DU?$char_traits@D@std@@@std@@QEAAXH_N@Z
??1_Lockit@std@@QEAA@XZ
vcruntime140_1
__CxxFrameHandler4
vcruntime140
__current_exception_context
__current_exception
_CxxThrowException
memmove
__std_terminate
__std_exception_copy
__std_exception_destroy
memcpy
__C_specific_handler
memset
api-ms-win-crt-stdio-l1-1-0
fsetpos
ungetc
setvbuf
fgetpos
fwrite
_get_stream_buffer_pointers
fread
fgetc
fclose
fflush
fputc
_set_fmode
__p__commode
_fseeki64
api-ms-win-crt-runtime-l1-1-0
_cexit
_c_exit
_register_thread_local_exe_atexit_callback
_seh_filter_exe
_initterm_e
_set_app_type
__p___argv
_exit
_register_onexit_function
_crt_atexit
_initterm
terminate
_configure_narrow_argv
_get_initial_narrow_environment
exit
__p___argc
_initialize_onexit_table
_initialize_narrow_environment
_invalid_parameter_noinfo_noreturn
system
api-ms-win-crt-filesystem-l1-1-0
_lock_file
_unlock_file
api-ms-win-crt-heap-l1-1-0
malloc
_callnewh
free
_set_new_mode
api-ms-win-crt-math-l1-1-0
__setusermatherr
api-ms-win-crt-locale-l1-1-0
_configthreadlocale
kernel32
RtlCaptureContext
IsDebuggerPresent
GetModuleHandleW
GetSystemTimeAsFileTime
GetCurrentThreadId
GetCurrentProcessId
QueryPerformanceCounter
IsProcessorFeaturePresent
TerminateProcess
GetCurrentProcess
SetUnhandledExceptionFilter
UnhandledExceptionFilter
RtlVirtualUnwind
RtlLookupFunctionEntry
InitializeSListHead
Sections
.text Size: 12KB - Virtual size: 11KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 11KB - Virtual size: 11KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 675KB - Virtual size: 676KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 1KB - Virtual size: 1KB
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: 512B - Virtual size: 144B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ