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VOLEXITY_Apt_Malware_Win_Deepdata_Module

Detects modules used by DEEPDATA based on the required export names used by those modules.

APT / threat actorDeepdataVolexity threat-intelBSD 2-Clause LicenseCompiles with YARA-X
Author
threatintel@volexity.com
Date
2024-07-30
Modified
2024-11-14
Score / Quality
75 / 80

What this rule detects

Detects modules used by DEEPDATA based on the required export names used by those modules.

Associated malware family: Deepdata.

It defines 4 patterns (4 text, 0 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

apt-malware-win-deepdata-module.yarBSD 2-Clause License
rule VOLEXITY_Apt_Malware_Win_Deepdata_Module : BRAZENBAMBOO FILE MEMORY
{
	meta:
		description = "Detects modules used by DEEPDATA based on the required export names used by those modules."
		author = "threatintel@volexity.com"
		id = "1287f5dd-9229-57ce-a91a-73d61041df80"
		date = "2024-07-30"
		modified = "2024-11-14"
		reference = "https://github.com/volexity/threat-intel"
		source_url = "https://github.com/volexity/threat-intel/blob/3a9d0b52459877ee866a9a0ba06e60059b778c77/2024/2024-11-15 BrazenBamboo/rules.yar#L1-L25"
		license_url = "https://github.com/volexity/threat-intel/blob/3a9d0b52459877ee866a9a0ba06e60059b778c77/LICENSE.txt"
		hash = "c782346bf9e5c08a0c43a85d4991f26b0b3c99c054fa83beb4a9e406906f011e"
		logic_hash = "d36f34343826daf7f7368118c7127c7181a54c99a01803016c9a6965abb309cb"
		score = 75
		quality = 80
		tags = "BRAZENBAMBOO, FILE, MEMORY"
		os = "win"
		os_arch = "all"
		scan_context = "file,memory"
		severity = "critical"
		license = "See license at https://github.com/volexity/threat-intel/blob/main/LICENSE.txt"
		rule_id = 10868
		version = 2

	strings:
		$str1 = "ExecuteCommand"
		$str2 = "GetPluginCommandID"
		$str3 = "GetPluginName"
		$str4 = "GetPluginVersion"

	condition:
		all of them
}

Strings (4 patterns)

IdentifierTypeValueModifiers
$str1text"ExecuteCommand"
$str2text"GetPluginCommandID"
$str3text"GetPluginName"
$str4text"GetPluginVersion"

Condition

all of them

In plain words (Heuristic)

  • All patterns in the rule must match.

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References

Sample hashes

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

  • c782346bf9e5c08a0c43a85d4991f26b0b3c99c054fa83beb4a9e406906f011e

Licence & attribution

Author: threatintel@volexity.com

Source repository: Volexity threat-intel @ 3a9d0b5245

Licence: BSD 2-Clause License (stated in the rule's own meta)

“See license at https://github.com/volexity/threat-intel/blob/main/LICENSE.txt”

Copyright notice: Copyright 2022 by Volexity, Inc.

Original rule

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

Rule id: 1287f5dd-9229-57ce-a91a-73d61041df80

Metadata

oswin
os_archall
scan_contextfile,memory
severitycritical
rule_id10868
version2

Tags:BRAZENBAMBOOFILEMEMORY