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MALPEDIA_Win_Mutabaha_Auto

autogenerated rule brought to you by yara-signator

MalwareMutabahaMalpedia signator rulesCreative Commons Attribution-ShareAlike 4.0Compiles with YARA-X
Author
Felix Bilstein - yara-signator at cocacoding dot com
Date
2026-05-04
Modified
2026-05-18
Score / Quality
75 / 75

What this rule detects

autogenerated rule brought to you by yara-signator

Associated malware family: Mutabaha.

It defines 10 patterns (0 text, 10 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

win-mutabaha-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Mutabaha_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "17acaff4-0527-5476-a4b8-44d527c49c3a"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.mutabaha"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.mutabaha_auto.yar#L1-L134"
		license_url = "N/A"
		logic_hash = "7bd797e29f72979881873637319f3de377a3b639beda6274238d17fac09b0b70"
		score = 75
		quality = 75
		tags = "FILE"
		version = "1"
		tool = "yara-signator v0.6.0"
		signator_config = "callsandjumps;datarefs;binvalue"
		malpedia_rule_date = "20260422"
		malpedia_hash = "a182e35da64e6d71cb55f125c4d4225196523f14"
		malpedia_version = "20260504"
		malpedia_license = "CC BY-SA 4.0"
		malpedia_sharing = "TLP:WHITE"

	strings:
		$sequence_0 = { 50 8d4da8 e8???????? 837dbc08 8d45a8 8d8d78ffffff 0f4345a8 }
		$sequence_1 = { 50 e8???????? 83f8ff 743b 8b7dd4 90 8b5f10 }
		$sequence_2 = { 8954c804 8b06 031cc8 1354c804 41 3b4e14 72e7 }
		$sequence_3 = { 50 e8???????? 83c410 ba00020000 68feffff7f ff35???????? 51 }
		$sequence_4 = { 8bc8 e8???????? 85c0 7812 8b45f0 5f 5e }
		$sequence_5 = { 3b45ec 75cb 85d2 75c7 85ff 7c62 7f04 }
		$sequence_6 = { e8???????? c7465400000000 8bc6 8b4df4 64890d00000000 59 5e }
		$sequence_7 = { 83c414 8d85f0fbffff 68???????? ffb5f0e5ffff 68???????? 6800020000 50 }
		$sequence_8 = { 894de8 8b0490 8b55e0 3bc6 7324 8bc8 c1e105 }
		$sequence_9 = { 668945cc e8???????? 8d55cc c645fc01 8d4db4 e8???????? 68???????? }

	condition:
		7 of them and filesize < 1220608
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 50 8d4da8 e8???????? 837dbc08 8d45a8 8d8d78ffffff 0f4345a8 }
$sequence_1hex{ 50 e8???????? 83f8ff 743b 8b7dd4 90 8b5f10 }
$sequence_2hex{ 8954c804 8b06 031cc8 1354c804 41 3b4e14 72e7 }
$sequence_3hex{ 50 e8???????? 83c410 ba00020000 68feffff7f ff35???????? 51 }
$sequence_4hex{ 8bc8 e8???????? 85c0 7812 8b45f0 5f 5e }
$sequence_5hex{ 3b45ec 75cb 85d2 75c7 85ff 7c62 7f04 }
$sequence_6hex{ e8???????? c7465400000000 8bc6 8b4df4 64890d00000000 59 5e }
$sequence_7hex{ 83c414 8d85f0fbffff 68???????? ffb5f0e5ffff 68???????? 6800020000 50 }
$sequence_8hex{ 894de8 8b0490 8b55e0 3bc6 7324 8bc8 c1e105 }
$sequence_9hex{ 668945cc e8???????? 8d55cc c645fc01 8d4db4 e8???????? 68???????? }

Condition

7 of them and filesize < 1220608

In plain words (Heuristic)

  • The file must be smaller than 1220608 (a cheap guard that skips large files).
  • At least 7 patterns in the rule must match.

Test this rule in your browser

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Drop a file here or click to chooseScanned locally with YARA-X. Files up to 200 MB.

Open in editor

References

Licence & attribution

Author: Felix Bilstein - yara-signator at cocacoding dot com

Source repository: Malpedia signator rules @ c901f97b7d

Licence: Creative Commons Attribution-ShareAlike 4.0 (repository licence)

Original rule

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

Rule id: 17acaff4-0527-5476-a4b8-44d527c49c3a

Metadata

version1
toolyara-signator v0.6.0
signator_configcallsandjumps;datarefs;binvalue
malpedia_rule_date20260422
malpedia_hasha182e35da64e6d71cb55f125c4d4225196523f14
malpedia_version20260504
malpedia_licenseCC BY-SA 4.0
malpedia_sharingTLP:WHITE

Tags:FILE