Loader_UEFI[.]exe | Triage

Sharing

General

Target

Loader_UEFI.exe
Size

679KB
MD5

c917837258e4556d08d1007a901e10e2
SHA1

033d5a327325f01252ae0ab387dddada6974a873
SHA256

830998a199250c7183288618febb35fd08a7848d3aae1cddb89c48d8be180b1a
SHA512

022faef413e99ae4175635e1eda70059fa05fd365ee71930fab27d98e5e376360ab27709ccdd19c8a9097055ae2a7e46381063a39813670d645e9b79be25d4f5
SSDEEP

12288:KqI9R0yf99LzhWjkRCFdNT9InralGCZ3ZvI/eLjX9qSs+B32O/ocOJMyPJGTlOzr:KHR0yfrzhWCqT4OQCxZg6jNLnm0oBiy9

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
Loader_UEFI.exe

Files

Loader_UEFI.exe
.exe windows:4 windows x86

6f462fcc6b830b77fb3fef2add9dc570

Headers

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DEBUG_STRIPPED

Imports

msvcrt

malloc
_sleep
memset
strcmp
strcpy
getenv
sprintf
fopen
fwrite
fclose
__argc
__argv
_environ
_XcptFilter
__set_app_type
_controlfp
__getmainargs
exit

shell32

ShellExecuteA

kernel32

SetUnhandledExceptionFilter

Sections

.text
Size: 2KB - Virtual size: 1KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 675KB - Virtual size: 675KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.bss
Size: - Virtual size: 4B

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 1024B - Virtual size: 776B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ