SEKOIA_Infostealer_Win_Lumma_Strings_Aug23

rule SEKOIA_Infostealer_Win_Lumma_Strings_Aug23 : FILE
{
	meta:
		description = "Finds Lumma samples based on the specific strings"
		author = "Sekoia.io"
		id = "728f7825-a463-4b19-b2d3-3460e4c06dc9"
		date = "2023-09-14"
		modified = "2024-12-19"
		reference = "https://github.com/SEKOIA-IO/Community"
		source_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/yara_rules/infostealer_win_lumma_strings_aug23.yar#L1-L23"
		license_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/LICENSE.md"
		logic_hash = "704a31b0f7c30602305768f13bf6108ebaf08c62451833731d2f2f020efce386"
		score = 75
		quality = 80
		tags = "FILE"
		version = "1.0"
		classification = "TLP:CLEAR"

	strings:
		$str01 = "lid=%s&j=%s&ver" ascii
		$str02 = "%s (%d.%d.%d)" ascii
		$str03 = "- Screen Resoluton:" ascii
		$str04 = "- Physical Installed Memory:" ascii
		$str05 = "Content-Type: attachment/x-object" ascii
		$str06 = "Content-Type: application/x-www-form-urlencoded" ascii
		$str07 = "Content-Type: multipart/form-data; boundary=%s" wide
		$str08 = "SysmonDrv" wide
		$str09 = "TeslaBrowser/5.5" wide

	condition:
		uint16( 0 ) == 0x5A4D and 6 of them
}