Loader[.]exe | Triage

Resubmissions

15/09/2024, 12:26

240915-pml7yavamn 3

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General

Target

Loader.exe
Size

155KB
MD5

147d9e715abd49912d1fbb74419fd0dc
SHA1

dd6c8cf395238c68237441b3bafb5b3ecd0f2c6c
SHA256

458d9fd03e37260814a9ca7bade931746ba2ba5ba9a1bcca8cfda395202e797c
SHA512

c69f569527ba7b8ce8e10e9bea22102552fcbe01e9d1d446a6a4ba78194fe4f6eaad8b0a4e400a794a4c755e3b696547448def97faa0e6831bb5e9e0911c2d69
SSDEEP

3072:wefQZKfOC31VwyY9egNtfNjJvjmqqF7Hb/LMm5MWDQGMTLIqu:wDewyY9egLRePYm5h8NUq

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
Loader.exe

Files

Loader.exe
.exe windows:6 windows x64 arch:x64

Password: 123

5c16479801aac25e19e4d3e71f54842d

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

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

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

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

__p__commode
setvbuf
__stdio_common_vswprintf
_set_fmode
__stdio_common_vfwprintf
fflush
__stdio_common_vsnwprintf_s
_wfsopen
fputws
fputwc
__acrt_iob_func

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

free
_set_new_mode
malloc
calloc
_callnewh

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

strcpy_s
wcsncmp
toupper
wcsnlen
_wcsdup

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

wcstoul
_wtoi

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

_gmtime64_s
wcsftime
_time64

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

___mb_cur_max_func
___lc_codepage_func
___lc_locale_name_func
_configthreadlocale
setlocale
_unlock_locales
_lock_locales
__pctype_func

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

__setusermatherr

Sections

.text
Size: 88KB - Virtual size: 88KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 37KB - Virtual size: 37KB

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: 4KB

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: 792B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

.rsrc
Size: 19KB - Virtual size: 18KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Resubmissions

Sharing

General

Malware Config

Signatures

Files

Password: 123

5c16479801aac25e19e4d3e71f54842d

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-time-l1-1-0

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

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

Sections

.text Size: 88KB - Virtual size: 88KB

.rdata Size: 37KB - Virtual size: 37KB

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

.pdata Size: 5KB - Virtual size: 4KB

_RDATA Size: 512B - Virtual size: 348B

.reloc Size: 1024B - Virtual size: 792B

.rsrc Size: 19KB - Virtual size: 18KB

.text
Size: 88KB - Virtual size: 88KB

.rdata
Size: 37KB - Virtual size: 37KB

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

.pdata
Size: 5KB - Virtual size: 4KB

_RDATA
Size: 512B - Virtual size: 348B

.reloc
Size: 1024B - Virtual size: 792B

.rsrc
Size: 19KB - Virtual size: 18KB