Nezur[.]zip | Triage

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General

Target

Nezur.zip
Size

3.0MB
MD5

f4e1db00b5b33c7a077307d2a26df128
SHA1

2190db6054e42a58f5f95bc1de3faf3bb8ea0f21
SHA256

b0467fcb39e5afbae54c3d8dcff3692049e46811bf4d3e35b62708571ce80d96
SHA512

58cccc3478a9fc032577e6250affd8aa812fbe2b107b8e65843df379e4b1aa3fb49cebfec7d7a2a003467d3bb444a0e6347ed0a58ab94706a4b26ac1a95ceafd
SSDEEP

49152:H05q61M4MXkJZ1awYIdLwXiHMmJThXhqH51hBRzFYdNWhkUnOhA4BS7DH/og:H00phg1aw3LwXisYTvqHLh8DUneorAg

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
unpack001/Nezur.exe

Files

Nezur.zip
.zip
Nezur.exe
.exe windows:6 windows x64 arch:x64

78da59308ee0088a874b4a6cdd7d91bd

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_GUARD_CF
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

Imports

kernel32

FindNextFileW
GetCurrentProcess
GetModuleHandleExW
GetModuleFileNameW
LeaveCriticalSection
InitializeCriticalSection
GetEnvironmentVariableW
FindClose
MultiByteToWideChar
GetLastError
GetFileAttributesExW
GetFullPathNameW
GetProcAddress
DeleteCriticalSection
WideCharToMultiByte
IsWow64Process
LoadLibraryExW
RtlUnwind
FreeLibrary
TlsFree
TlsSetValue
TlsGetValue
EnterCriticalSection
FindFirstFileExW
OutputDebugStringW
LoadLibraryA
GetModuleHandleW
TlsAlloc
InitializeCriticalSectionAndSpinCount
SetLastError
RaiseException
RtlPcToFileHeader
RtlUnwindEx
InitializeSListHead
GetSystemTimeAsFileTime
GetCurrentThreadId
GetCurrentProcessId
QueryPerformanceCounter
IsDebuggerPresent
IsProcessorFeaturePresent
TerminateProcess
SetUnhandledExceptionFilter
UnhandledExceptionFilter
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
LCMapStringEx
DecodePointer
EncodePointer
InitializeCriticalSectionEx
GetStringTypeW

user32

MessageBoxW

shell32

ShellExecuteW

advapi32

RegOpenKeyExW
RegGetValueW
DeregisterEventSource
RegisterEventSourceW
ReportEventW
RegCloseKey

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

_invalid_parameter_noinfo_noreturn
_initialize_onexit_table
_register_onexit_function
_crt_atexit
_exit
_cexit
_seh_filter_exe
_set_app_type
_configure_wide_argv
__p___argc
_initialize_wide_environment
_get_initial_wide_environment
__p___wargv
exit
terminate
_errno
_initterm
abort
_c_exit
_register_thread_local_exe_atexit_callback
_initterm_e

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

__stdio_common_vsprintf_s
setvbuf
__stdio_common_vswprintf
__stdio_common_vsnwprintf_s
__stdio_common_vfwprintf
_set_fmode
fflush
_wfsopen
__p__commode
fputws
__acrt_iob_func
fputwc

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

_callnewh
_set_new_mode
free
malloc
calloc

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

_wcsdup
strcpy_s
wcsnlen
toupper
wcsncmp
strcspn

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

_wtoi
wcstoul

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

_configthreadlocale
localeconv
_lock_locales
_unlock_locales
___mb_cur_max_func
___lc_codepage_func
setlocale
___lc_locale_name_func
__pctype_func

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

frexp
__setusermatherr

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

_time64
wcsftime
_gmtime64_s

Sections

.text
Size: 99KB - Virtual size: 99KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 39KB - Virtual size: 39KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 2KB - Virtual size: 5KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 5KB - Virtual size: 5KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

_RDATA
Size: 512B - Virtual size: 348B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 1024B - Virtual size: 840B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

.rsrc
Size: 9KB - Virtual size: 8KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

78da59308ee0088a874b4a6cdd7d91bd

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

shell32

advapi32

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

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

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

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

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

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

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

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

Sections

.text Size: 99KB - Virtual size: 99KB

.rdata Size: 39KB - Virtual size: 39KB

.data Size: 2KB - Virtual size: 5KB

.pdata Size: 5KB - Virtual size: 5KB

_RDATA Size: 512B - Virtual size: 348B

.reloc Size: 1024B - Virtual size: 840B

.rsrc Size: 9KB - Virtual size: 8KB

.text
Size: 99KB - Virtual size: 99KB

.rdata
Size: 39KB - Virtual size: 39KB

.data
Size: 2KB - Virtual size: 5KB

.pdata
Size: 5KB - Virtual size: 5KB

_RDATA
Size: 512B - Virtual size: 348B

.reloc
Size: 1024B - Virtual size: 840B

.rsrc
Size: 9KB - Virtual size: 8KB