SEKOIA_Loader_Win_Squirrelwaffle_Doc

rule SEKOIA_Loader_Win_Squirrelwaffle_Doc : FILE
{
	meta:
		description = "Detect the Squirrelwaffle malicious document (not xls)"
		author = "Sekoia.io"
		id = "caadeac3-d4c7-4d84-b539-c03cc4c6c274"
		date = "2021-09-20"
		modified = "2024-12-19"
		reference = "https://github.com/SEKOIA-IO/Community"
		source_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/yara_rules/loader_win_squirrelwaffle_doc.yar#L1-L18"
		license_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/LICENSE.md"
		logic_hash = "b9f7c3605e25c8c7caa5f70e492d46fb70e7cb6002704440e7346ebfb2bbc7bf"
		score = 75
		quality = 76
		tags = "FILE"
		version = "1.0"
		classification = "TLP:CLEAR"

	strings:
		$s1 = {4f4b31203d2022636d64202f632072756e646c6c33322e65786520433a5c50726f6772616d446174615c777777312e646c6c2c6c647222}
		$s2 = {4145524f2042495a20434f4d20434f4f502045445520474f5620494e464f20494e54204d494c204d555345554d204e414d45204e4554204f52472050524f}

	condition:
		any of them and filesize > 100KB
}