f[.]zip | Triage

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General

Target

f.zip
Size

4.0MB
MD5

bda2f1ca81e1ec30060945efa8801807
SHA1

d08e811faf3eb999d6a50190c0e4f7e6195f489c
SHA256

c3e2f4a62345ed6810dfd0de5dd8ed12f3602da5770f13758b00d3a198f27dd5
SHA512

edeb38f79ebb724e4507c5d67f875ad3ceb0630b0d890cc16a12da3b787631c769ac3e8bebeccc4343be3f2d3affb913f398044c041ba56020dd8aafbee151cb
SSDEEP

98304:p1TBvVotT+o8avvTKfFYuSsECJ0VfqfncqRZWsi3:TTBvV0TP82i+szTfncqREsi3

Score

3^/10

Malware Config

Signatures

Unsigned PE 2 IoCs

Checks for missing Authenticode signature.

resource
unpack001/f/NL Hybrid.dll
unpack001/f/NL Hybrid.exe

Files

f.zip
.rar
f/NL Hybrid.dll
.exe windows:4 windows x86 arch:x86

f34d5f2d4577ed6d9ceec516c1f5a744

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_32BIT_MACHINE

PDB Paths

NL Hybrid.pdb

Imports

mscoree

_CorExeMain

Sections

.text
Size: 4.1MB - Virtual size: 4.1MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.reloc
Size: 512B - Virtual size: 12B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
f/NL Hybrid.exe
.exe windows:6 windows x64 arch:x64

72bc4dfff8905033c11dea0c671a7919

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

PDB Paths

D:\a\_work\1\s\artifacts\obj\win-x64.Release\corehost\apphost\standalone\apphost.pdb

Imports

kernel32

FindNextFileW
GetCurrentProcess
GetModuleHandleExW
GetModuleFileNameW
LeaveCriticalSection
InitializeCriticalSection
GetEnvironmentVariableW
FindClose
MultiByteToWideChar
GetLastError
GetFileAttributesExW
GetFullPathNameW
GetProcAddress
DeleteCriticalSection
WideCharToMultiByte
IsWow64Process
LoadLibraryExW
FreeLibrary
TlsFree
TlsSetValue
TlsGetValue
TlsAlloc
EnterCriticalSection
FindFirstFileExW
OutputDebugStringW
LoadLibraryA
GetModuleHandleW
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

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

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

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

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

_set_new_mode
_callnewh
free
malloc
calloc

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

wcsnlen
strcpy_s
_wcsdup
strcspn
wcsncmp
toupper

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

wcstoul
_wtoi

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

__pctype_func
_unlock_locales
_lock_locales
___lc_locale_name_func
___lc_codepage_func
___mb_cur_max_func
_configthreadlocale
setlocale
localeconv

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

__setusermatherr
frexp

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

_gmtime64_s
wcsftime
_time64

Sections

.text
Size: 102KB - Virtual size: 102KB

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: 500B

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: 8KB - Virtual size: 8KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
f/NL Hybrid.runtimeconfig.json

Sharing

General

Malware Config

Signatures

Files

f34d5f2d4577ed6d9ceec516c1f5a744

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

mscoree

Sections

.text Size: 4.1MB - Virtual size: 4.1MB

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

.reloc Size: 512B - Virtual size: 12B

72bc4dfff8905033c11dea0c671a7919

Headers

DLL Characteristics

File Characteristics

PDB Paths

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: 102KB - Virtual size: 102KB

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

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

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

_RDATA Size: 512B - Virtual size: 500B

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

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

.text
Size: 4.1MB - Virtual size: 4.1MB

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

.reloc
Size: 512B - Virtual size: 12B

.text
Size: 102KB - Virtual size: 102KB

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

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

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

_RDATA
Size: 512B - Virtual size: 500B

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

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