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YARA · Volexity threat-intel

VOLEXITY_Apt_Delivery_Office_Macro_Lazypine_Jeus

Detects malicious documents used by LazyPine in a campaign dropping the AppleJeus malware.

APT / threat actorApplejeusVolexity threat-intelBSD 2-Clause LicenseCompiles with YARA-X
Author
threatintel@volexity.com
Date
2022-11-02
Modified
2025-05-21
Score / Quality
75 / 80

What this rule detects

Detects malicious documents used by LazyPine in a campaign dropping the AppleJeus malware.

Associated malware family: Applejeus.

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

Summary generated from the rule's metadata and condition.

Rule source

apt-delivery-office-macro-lazypine-jeus.yarBSD 2-Clause License
rule VOLEXITY_Apt_Delivery_Office_Macro_Lazypine_Jeus : LAZYPINE FILE
{
	meta:
		description = "Detects malicious documents used by LazyPine in a campaign dropping the AppleJeus malware."
		author = "threatintel@volexity.com"
		id = "f9a92f47-aa1d-56ea-ac59-47cc559f379f"
		date = "2022-11-02"
		modified = "2025-05-21"
		reference = "https://github.com/volexity/threat-intel"
		source_url = "https://github.com/volexity/threat-intel/blob/3a9d0b52459877ee866a9a0ba06e60059b778c77/2022/2022-12-01 Buyer Beware - Fake Cryptocurrency Applications Serving as Front for AppleJeus Malware/yara.yar#L141-L165"
		license_url = "https://github.com/volexity/threat-intel/blob/3a9d0b52459877ee866a9a0ba06e60059b778c77/LICENSE.txt"
		hash = "17e6189c19dedea678969e042c64de2a51dd9fba69ff521571d63fd92e48601b"
		logic_hash = "54d5396b889a45d81122301eadf77f73135937fbe9647ad60491ac7856faf5ad"
		score = 75
		quality = 80
		tags = "LAZYPINE, FILE"
		os = "all"
		os_arch = "all"
		scan_context = "file"
		severity = "critical"
		license = "See license at https://github.com/volexity/threat-intel/blob/main/LICENSE.txt"
		rule_id = 8490
		version = 7

	strings:
		$s1 = "0M8R4K" ascii
		$s2 = "bin.base64" ascii
		$s3 = "dragon" ascii
		$s4 = "Workbook_Open" ascii

	condition:
		all of ( $s* )
}

Strings (4 patterns)

IdentifierTypeValueModifiers
$s1text"0M8R4K"ascii
$s2text"bin.base64"ascii
$s3text"dragon"ascii
$s4text"Workbook_Open"ascii

Condition

all of ( $s* )

In plain words (Heuristic)

  • All patterns in ( $s* ) 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).

  • 17e6189c19dedea678969e042c64de2a51dd9fba69ff521571d63fd92e48601b

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: f9a92f47-aa1d-56ea-ac59-47cc559f379f

Metadata

osall
os_archall
scan_contextfile
severitycritical
rule_id8490
version7

Tags:LAZYPINEFILE

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