YARA · CAPE Sandbox (CAPEv2)

CAPE_Icedidpackera

IcedID export selection

MalwareIcedidCAPE Sandbox (CAPEv2)GNU General Public License v3.0Compiles with YARA-X

Author: kevoreilly
Date: 2021-03-30
Modified: 2023-11-28
Score / Quality: 75 / 70

What this rule detects

IcedID export selection

Associated malware family: Icedid.

Targets: Windows PE.

It defines 3 patterns (1 text, 2 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

Download .yar

icedidpackera.yarGNU General Public License v3.0

rule CAPE_Icedidpackera : FILE
{
	meta:
		description = "IcedID export selection"
		author = "kevoreilly"
		id = "d793d8a1-0e17-56ad-933c-470e2290867b"
		date = "2021-03-30"
		modified = "2023-11-28"
		reference = "https://github.com/kevoreilly/CAPEv2"
		source_url = "https://github.com/kevoreilly/CAPEv2/blob/6b15e76f28cd83fd1187da6c9aaaad2174255356/analyzer/windows/data/yara/IcedID.yar#L27-L40"
		license_url = "https://github.com/kevoreilly/CAPEv2/blob/6b15e76f28cd83fd1187da6c9aaaad2174255356/LICENSE"
		hash = "fbad60002286599ca06d0ecb3624740efbf13ee5fda545341b3e0bf4d5348cfe"
		logic_hash = "aa0681e7794546355e6d61f739c49035a493cdfca7e666531d74e3835ec44408"
		score = 75
		quality = 70
		tags = "FILE"
		cape_options = "export=$export"

	strings:
		$init = "init"
		$export = {48 89 5C 24 08 48 89 6C 24 10 48 89 74 24 18 57 48 81 EC [2] 00 00 41 8B E9 49 8B F0 48 8B FA 48 8B D9}
		$alloc = {8B 50 50 33 C9 44 8D 49 40 41 B8 00 30 00 00 FF 15 [4] 48 89 44 24 28 [0-3] 48 89 84 24 ?? 00 00 00 E9}

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

Strings (3 patterns)

Identifier	Type	Value
$init	text	"init"
$export	hex	{48 89 5C 24 08 48 89 6C 24 10 48 89 74 24 18 57 48 81 EC [2] 00 00 41 8B E9 49 8B F0 48 8B FA 48 8B D9}
$alloc	hex	{8B 50 50 33 C9 44 8D 49 40 41 B8 00 30 00 00 FF 15 [4] 48 89 44 24 28 [0-3] 48 89 84 24 ?? 00 00 00 E9}

Condition

uint16( 0 ) == 0x5A4D and all of them

In plain words (Heuristic)

The file must start with “MZ” — a Windows executable (PE).
All patterns in the rule must match.

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References

https://github.com/kevoreilly/CAPEv2

Sample hashes

Hashes of samples the author lists in the rule's meta (look them up in your threat-intelligence platform).

fbad60002286599ca06d0ecb3624740efbf13ee5fda545341b3e0bf4d5348cfe

Licence & attribution

Author: kevoreilly

Source repository: CAPE Sandbox (CAPEv2) @ 6b15e76f28

Licence: GNU General Public License v3.0 (repository licence)

Original rule

Mirrored via YARA Forge 20260927, which prefixes rule names with the source and adds normalised meta fields.

Rule id: d793d8a1-0e17-56ad-933c-470e2290867b

Metadata

cape_options	export=$export

Tags:FILE

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