Static task
static1
Behavioral task
behavioral1
Sample
Nezur Loader.exe
Resource
win11-20231222-en
General
-
Target
Nezur_Loader (1).zip
-
Size
30KB
-
MD5
6bd89263230079c60cdcc75c3b0eaaab
-
SHA1
452cff4b37e131b6eb7917784d461ceb7e7370b9
-
SHA256
880f642c6b08eaccddbba3f74fc046d51bb6dbe58f565d91ba3dc49ab02b16b1
-
SHA512
9df65713e0792571f2a66233f1943dd9c53fdb27035d27713d52970d0dd75529effc4a9b4b4dce8588d60cd0f80f5b25786c5a97165d242a6aa4eae5698ffbd7
-
SSDEEP
768:8JGuzGSDCoxJmE3BS47EDDN4fk9gT+avdnKg02viulWclV:8AzSDRJBIPDDN4fkbqdK52v5lJ
Malware Config
Signatures
-
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource unpack001/Nezur Loader.exe
Files
-
Nezur_Loader (1).zip.zip
Password: infected
-
Nezur Loader.exe.exe windows:6 windows x64 arch:x64
Password: infected
a350742f2749ab56a6e6841a2bddef50
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
Process32First
VirtualProtect
SetLastError
GetCurrentProcess
OutputDebugStringA
CreateFileW
OpenFileMappingW
GetModuleHandleA
CreateToolhelp32Snapshot
Sleep
GetLastError
CreateFileA
GetCurrentThread
Process32Next
CloseHandle
SetFileAttributesA
GetThreadContext
GetProcAddress
CreateDirectoryA
DebugBreak
IsDebuggerPresent
FormatMessageA
GetLocaleInfoEx
FindClose
FindFirstFileW
GetFileAttributesExW
AreFileApisANSI
GetModuleHandleW
GetFileInformationByHandleEx
MultiByteToWideChar
WideCharToMultiByte
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TerminateProcess
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentProcessId
GetCurrentThreadId
GetSystemTimeAsFileTime
InitializeSListHead
LocalFree
user32
FindWindowW
FindWindowA
msvcp140
?out@?$codecvt@DDU_Mbstatet@@@std@@QEBAHAEAU_Mbstatet@@PEBD1AEAPEBDPEAD3AEAPEAD@Z
?setstate@?$basic_ios@DU?$char_traits@D@std@@@std@@QEAAXH_N@Z
??0?$basic_ios@DU?$char_traits@D@std@@@std@@IEAA@XZ
??0?$basic_istream@DU?$char_traits@D@std@@@std@@QEAA@PEAV?$basic_streambuf@DU?$char_traits@D@std@@@1@_N@Z
??1?$basic_streambuf@DU?$char_traits@D@std@@@std@@UEAA@XZ
?showmanyc@?$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_istream@DU?$char_traits@D@std@@@std@@UEAA@XZ
?getloc@ios_base@std@@QEBA?AVlocale@2@XZ
?_Getcat@?$ctype@D@std@@SA_KPEAPEBVfacet@locale@2@PEBV42@@Z
?always_noconv@codecvt_base@std@@QEBA_NXZ
??Bid@locale@std@@QEAA_KXZ
_Query_perf_frequency
??1_Lockit@std@@QEAA@XZ
??0_Lockit@std@@QEAA@H@Z
?_Getgloballocale@locale@std@@CAPEAV_Locimp@12@XZ
?cin@std@@3V?$basic_istream@DU?$char_traits@D@std@@@1@A
?_Winerror_map@std@@YAHH@Z
?in@?$codecvt@DDU_Mbstatet@@@std@@QEBAHAEAU_Mbstatet@@PEBD1AEAPEBDPEAD3AEAPEAD@Z
?_Init@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAXXZ
?getloc@?$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
?widen@?$basic_ios@DU?$char_traits@D@std@@@std@@QEBADD@Z
?sgetc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHXZ
?sbumpc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHXZ
?snextc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHXZ
?_Getcat@?$codecvt@DDU_Mbstatet@@@std@@SA_KPEAPEBVfacet@locale@2@PEBV42@@Z
?_Ipfx@?$basic_istream@DU?$char_traits@D@std@@@std@@QEAA_N_N@Z
_Xtime_get_ticks
_Query_perf_counter
_Thrd_sleep
?_Syserror_map@std@@YAPEBDH@Z
?_Xlength_error@std@@YAXPEBD@Z
?id@?$ctype@D@std@@2V0locale@2@A
?_Fiopen@std@@YAPEAU_iobuf@@PEBDHH@Z
?id@?$codecvt@DDU_Mbstatet@@@std@@2V0locale@2@A
vcruntime140_1
__CxxFrameHandler4
vcruntime140
_CxxThrowException
__std_terminate
__current_exception_context
__std_exception_destroy
__C_specific_handler
memcpy
__current_exception
__std_exception_copy
memcmp
memset
memmove
api-ms-win-crt-runtime-l1-1-0
_get_initial_narrow_environment
_set_app_type
_seh_filter_exe
_cexit
_initterm
_register_onexit_function
_initialize_onexit_table
_initialize_narrow_environment
_configure_narrow_argv
_initterm_e
exit
_c_exit
abort
_crt_atexit
__p___argv
_invalid_parameter_noinfo_noreturn
_register_thread_local_exe_atexit_callback
__p___argc
system
_exit
terminate
api-ms-win-crt-stdio-l1-1-0
fwrite
setvbuf
__p__commode
ungetc
fsetpos
__stdio_common_vfprintf
fgetc
fread
_fseeki64
fclose
fflush
__acrt_iob_func
fgetpos
fputc
_set_fmode
_get_stream_buffer_pointers
api-ms-win-crt-heap-l1-1-0
free
malloc
_callnewh
_set_new_mode
api-ms-win-crt-filesystem-l1-1-0
_lock_file
remove
_stat64i32
_unlock_file
api-ms-win-crt-locale-l1-1-0
_configthreadlocale
___lc_codepage_func
api-ms-win-crt-math-l1-1-0
__setusermatherr
Sections
.text Size: 54KB - Virtual size: 53KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 21KB - Virtual size: 21KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 2KB - Virtual size: 3KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 2KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 5KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 336B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
-
READ ME.txt