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YARA · CAPE Sandbox (CAPEv2)

CAPE_Lummaremap

Lumma ntdll-remap bypass

MalwareLummaCAPE Sandbox (CAPEv2)GNU General Public License v3.0Compiles with YARA-X
Author
kevoreilly
Date
2024-01-05
Modified
2024-05-09
Score / Quality
75 / 70

What this rule detects

Lumma ntdll-remap bypass

Associated malware family: Lumma.

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

Summary generated from the rule's metadata and condition.

Rule source

Download .yar
lummaremap.yarGNU General Public License v3.0
rule CAPE_Lummaremap
{
	meta:
		description = "Lumma ntdll-remap bypass"
		author = "kevoreilly"
		id = "93ae37d1-a38a-5f96-8bb3-cc648a49b588"
		date = "2024-01-05"
		modified = "2024-05-09"
		reference = "https://github.com/kevoreilly/CAPEv2"
		source_url = "https://github.com/kevoreilly/CAPEv2/blob/6b15e76f28cd83fd1187da6c9aaaad2174255356/analyzer/windows/data/yara/Lumma.yar#L16-L27"
		license_url = "https://github.com/kevoreilly/CAPEv2/blob/6b15e76f28cd83fd1187da6c9aaaad2174255356/LICENSE"
		logic_hash = "51093379fbd041f75bdfe161bc9dfcc7d782c23ce16d625ca558bb58d8d57713"
		score = 75
		quality = 70
		tags = ""
		cape_options = "ntdll-remap=0"
		packed = "7972cbf2c143cea3f90f4d8a9ed3d39ac13980adfdcf8ff766b574e2bbcef1b4"

	strings:
		$remap = {C6 44 24 20 00 C7 44 24 1C C2 00 00 90 C7 44 24 18 00 00 FF D2 C7 44 24 14 00 BA 00 00 C7 44 24 10 B8 00 00 00 8B ?? 89 44 24 11}

	condition:
		any of them
}

Strings (1 patterns)

IdentifierTypeValueModifiers
$remaphex{C6 44 24 20 00 C7 44 24 1C C2 00 00 90 C7 44 24 18 00 00 FF D2 C7 44 24 14 00 BA 00 00 C7 44 24 10 B8 00 00 00 8B ?? 89 44 24 11}

Condition

any of them

In plain words (Heuristic)

  • At least one pattern in the rule must match.

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References

Licence & attribution

Author: kevoreilly

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: 93ae37d1-a38a-5f96-8bb3-cc648a49b588

Metadata

cape_optionsntdll-remap=0
packed7972cbf2c143cea3f90f4d8a9ed3d39ac13980adfdcf8ff766b574e2bbcef1b4

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