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CAPE_Bumblebee2024

BumbleBee 2024

MalwareBumbleBeeCAPE Sandbox (CAPEv2)GNU General Public License v3.0Compiles with YARA-X
Author
enzok
Date
2022-04-21
Modified
2024-10-29
Score / Quality
75 / 70

What this rule detects

BumbleBee 2024

Associated malware family: BumbleBee.

It defines 6 patterns (0 text, 6 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

Download .yar
bumblebee2024.yarGNU General Public License v3.0
rule CAPE_Bumblebee2024
{
	meta:
		description = "BumbleBee 2024"
		author = "enzok"
		id = "ba92b894-912d-593c-acf9-99cb6ad6d61f"
		date = "2022-04-21"
		modified = "2024-10-29"
		reference = "https://github.com/kevoreilly/CAPEv2"
		source_url = "https://github.com/kevoreilly/CAPEv2/blob/6b15e76f28cd83fd1187da6c9aaaad2174255356/data/yara/CAPE/BumbleBee.yar#L52-L68"
		license_url = "https://github.com/kevoreilly/CAPEv2/blob/6b15e76f28cd83fd1187da6c9aaaad2174255356/LICENSE"
		logic_hash = "db58272c1ba74bc6e6a90bdacf7e8feec94be5da2b5123e0475ce86448f3edb2"
		score = 75
		quality = 70
		tags = ""
		cape_type = "BumbleBee Payload"
		packed = "a20d56ab2e53b3a599af9904f163bb2e1b2bb7f2c98432519e1fbe87c3867e66"

	strings:
		$rc4key = {48 [6] 48 [6] E8 [4] 4C 89 AD [4] 4C 89 AD [4] 4C 89 B5 [4] 4C 89 AD [4] 44 88 AD [4] 48 8D 15 [4] 44 38 2D [4] 75}
		$botidlgt = {4C 8B C1 B? 4F 00 00 00 48 8D 0D [4] E8 [4] 4C 8B C3 48 8D 0D [4] B? 4F 00 00 00 E8 [4] 4C 8B C3 48 8D 0D [4] B? FF 0F 00 00 E8}
		$botid = {90 48 [6] E8 [4] 4C 89 AD [4] 4C 89 AD [4] 4C 89 B5 [4] 4C 89 AD [4] 44 88 AD [4] 48 8D 15 [4] 44 38 2D [4] 75}
		$port = {4C 89 6D ?? 4C 89 6D ?? 4c 89 75 ?? 4C 89 6D ?? 44 88 6D ?? 48 8D 05 [4] 44 38 2D [4] 75}
		$dga1 = {4C 89 75 ?? 4C 89 6D ?? 44 88 6D ?? 48 8B 1D [4] 48 8D 0D [4] E8 [4] 8B F8}
		$dga2 = {48 8D 0D [4] E8 [4] 8B F0 4C 89 6D ?? 4C 89 6D ?? 4C 89 75 ?? 4C 89 6D ?? 44 88 6D ?? 48 8D 15 [4] 44 38 2D [4] 75}

	condition:
		$rc4key and all of ( $botid* ) and 2 of ( $port , $port , $dga1 , $dga2 )
}

Strings (6 patterns)

IdentifierTypeValueModifiers
$rc4keyhex{48 [6] 48 [6] E8 [4] 4C 89 AD [4] 4C 89 AD [4] 4C 89 B5 [4] 4C 89 AD [4] 44 88 AD [4] 48 8D 15 [4] 44 38 2D [4] 75}
$botidlgthex{4C 8B C1 B? 4F 00 00 00 48 8D 0D [4] E8 [4] 4C 8B C3 48 8D 0D [4] B? 4F 00 00 00 E8 [4] 4C 8B C3 48 8D 0D [4] B? FF 0F 00 00 E8}
$botidhex{90 48 [6] E8 [4] 4C 89 AD [4] 4C 89 AD [4] 4C 89 B5 [4] 4C 89 AD [4] 44 88 AD [4] 48 8D 15 [4] 44 38 2D [4] 75}
$porthex{4C 89 6D ?? 4C 89 6D ?? 4c 89 75 ?? 4C 89 6D ?? 44 88 6D ?? 48 8D 05 [4] 44 38 2D [4] 75}
$dga1hex{4C 89 75 ?? 4C 89 6D ?? 44 88 6D ?? 48 8B 1D [4] 48 8D 0D [4] E8 [4] 8B F8}
$dga2hex{48 8D 0D [4] E8 [4] 8B F0 4C 89 6D ?? 4C 89 6D ?? 4C 89 75 ?? 4C 89 6D ?? 44 88 6D ?? 48 8D 15 [4] 44 38 2D [4] 75}

Condition

$rc4key and all of ( $botid* ) and 2 of ( $port , $port , $dga1 , $dga2 )

In plain words (Heuristic)

  • All patterns in ( $botid* ) must match.
  • At least 2 patterns in ( $port , $port , $dga1 , $dga2 ) must match.
  • Pattern $rc4key must be present.

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References

Licence & attribution

Author: enzok

Source repository: CAPE Sandbox (CAPEv2) @ 6b15e76f28

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

Copyright notice: Cuckoo Sandbox is copyrighted by the Cuckoo Foundation.

Original rule

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

Rule id: ba92b894-912d-593c-acf9-99cb6ad6d61f

Metadata

cape_typeBumbleBee Payload
packeda20d56ab2e53b3a599af9904f163bb2e1b2bb7f2c98432519e1fbe87c3867e66

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