SIGNATURE_BASE_SUSP_JAVA_Loader_Indicators_Aug25

rule SIGNATURE_BASE_SUSP_JAVA_Loader_Indicators_Aug25 : FILE
{
	meta:
		description = "Detects indicators of a Java loader used in phishing campaigns"
		author = "Florian Roth"
		id = "ed83b697-4e48-504c-8a65-af0a5b765c9d"
		date = "2025-08-07"
		modified = "2026-05-15"
		reference = "https://www.malwation.com/blog/technical-analysis-of-a-stealth-java-loader-used-in-phishing-campaigns-targeting-turkiye"
		source_url = "https://github.com/Neo23x0/signature-base/blob/94a1c48d7ab499879287ff611dfe7f9c56376030/yara/mal_soupdealer_java_aug25.yar#L26-L45"
		license_url = "https://github.com/Neo23x0/signature-base/blob/94a1c48d7ab499879287ff611dfe7f9c56376030/LICENSE"
		hash = "c4cf746fce283878dde567e5457a8ebdbb7ff3414be46569ecdd57338bd96fa1"
		logic_hash = "ac610cd6d3030f49058d5e6f059b746cf3da05ca3cdc8f2be2f5f1cfec2ff665"
		score = 70
		quality = 85
		tags = "FILE"

	strings:
		$s1 = "Loader.classPK" ascii fullword
		$s2 = "stubPK" ascii
		$s3 = "META-INF/MANIFEST.MFPK" ascii

	condition:
		uint16( 0 ) == 0x4b50 and filesize < 500KB and $s1 in ( filesize - 224 .. filesize ) and $s2 in ( filesize - 224 .. filesize ) and $s3 in ( filesize - 224 .. filesize )
}