DITEKSHEN_MALWARE_Win_Mercurial

rule DITEKSHEN_MALWARE_Win_Mercurial : FILE
{
	meta:
		description = "Detects Mercurial infostealer"
		author = "ditekSHen"
		id = "c262ada2-01ca-5fc1-adef-987908514019"
		date = "2020-11-06"
		modified = "2024-11-01"
		reference = "https://github.com/ditekshen/detection"
		source_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/yara/malware.yar#L6573-L6593"
		license_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/LICENSE.txt"
		logic_hash = "400f8f717a4e07bf4de508c02bbcd9e82bf21f3df84c989fc622378f33e192f0"
		score = 75
		quality = 75
		tags = "FILE"

	strings:
		$x1 = "mercurial grabber" wide nocase
		$x2 = "\"text\":\"Mercurial Grabber |" wide
		$x3 = "/nightfallgt/mercurial-grabber" wide
		$s1 = "/LimerBoy/Adamantium-Thief/" ascii
		$s2 = "Mozilla/5.0 (Macintosh; Intel Mac OS X x.y; rv:42.0) Gecko/20100101 Firefox/42.0" fullword wide
		$s3 = "StealCookies" fullword ascii
		$s4 = "StealPasswords" fullword ascii
		$s5 = "DetectDebug" fullword ascii
		$s6 = "CaptureScreen" fullword ascii
		$s7 = "WebhookContent" fullword ascii
		$s8 = /Grab(Token|Product|IP|Hardware)/ fullword ascii
		$p1 = "[\\w-]{24}\\.[\\w-]{6}\\.[\\w-]{27}" fullword ascii wide
		$p2 = "mfa\\.[\\w-]{84}" fullword ascii wide

	condition:
		uint16( 0 ) == 0x5a4d and ( 1 of ( $x* ) or 5 of ( $s* ) or ( all of ( $p* ) and 3 of ( $s* ) ) )
}