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MALPEDIA_Win_Pebbledash_Auto

autogenerated rule brought to you by yara-signator

MalwarePebbledashMalpedia 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: Pebbledash.

It defines 16 patterns (0 text, 16 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

win-pebbledash-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Pebbledash_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "32741f62-64dd-567f-aa49-1cc4f42738e6"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.pebbledash"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.pebbledash_auto.yar#L1-L172"
		license_url = "N/A"
		logic_hash = "1e51e4ff96dae4383b4a305d8c94bc69f42ea75b074b6acbec6bd629d39626bd"
		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 b9???????? e8???????? 85c0 7514 }
		$sequence_1 = { 5b 5e 5f c9 c3 6a01 ff742408 }
		$sequence_2 = { 894604 5e c3 55 8bec 833d????????00 750f }
		$sequence_3 = { e8???????? 6888130000 ff15???????? b9???????? e8???????? 68???????? e8???????? }
		$sequence_4 = { a1???????? a3???????? c3 8b442404 a3???????? c3 }
		$sequence_5 = { 5e c3 55 8b6c2408 56 33f6 8b4d00 }
		$sequence_6 = { 6829080000 68???????? 68???????? e8???????? }
		$sequence_7 = { e8???????? 33d2 b90e000000 f7f1 }
		$sequence_8 = { 0f44c5 41c1e008 8905???????? 0fb64201 440bc0 0fb64202 41c1e008 }
		$sequence_9 = { 41894e08 0fb6420d 0fb64a0c c1e108 }
		$sequence_10 = { e8???????? 498bcc 85c0 7512 e8???????? }
		$sequence_11 = { 8b4118 894604 8b411c 894608 8b01 }
		$sequence_12 = { e8???????? 4533c9 4c89742430 c744242880000000 }
		$sequence_13 = { e8???????? 488d542440 488bce ffd0 85c0 }
		$sequence_14 = { 415e 415d 415c 5d c3 498bcc e8???????? }
		$sequence_15 = { 33c9 4889742438 4889742430 89742428 89742420 ffd0 }

	condition:
		7 of them and filesize < 677888
}

Strings (16 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 50 b9???????? e8???????? 85c0 7514 }
$sequence_1hex{ 5b 5e 5f c9 c3 6a01 ff742408 }
$sequence_2hex{ 894604 5e c3 55 8bec 833d????????00 750f }
$sequence_3hex{ e8???????? 6888130000 ff15???????? b9???????? e8???????? 68???????? e8???????? }
$sequence_4hex{ a1???????? a3???????? c3 8b442404 a3???????? c3 }
$sequence_5hex{ 5e c3 55 8b6c2408 56 33f6 8b4d00 }
$sequence_6hex{ 6829080000 68???????? 68???????? e8???????? }
$sequence_7hex{ e8???????? 33d2 b90e000000 f7f1 }
$sequence_8hex{ 0f44c5 41c1e008 8905???????? 0fb64201 440bc0 0fb64202 41c1e008 }
$sequence_9hex{ 41894e08 0fb6420d 0fb64a0c c1e108 }
$sequence_10hex{ e8???????? 498bcc 85c0 7512 e8???????? }
$sequence_11hex{ 8b4118 894604 8b411c 894608 8b01 }
$sequence_12hex{ e8???????? 4533c9 4c89742430 c744242880000000 }
$sequence_13hex{ e8???????? 488d542440 488bce ffd0 85c0 }
$sequence_14hex{ 415e 415d 415c 5d c3 498bcc e8???????? }
$sequence_15hex{ 33c9 4889742438 4889742430 89742428 89742420 ffd0 }

Condition

7 of them and filesize < 677888

In plain words (Heuristic)

  • The file must be smaller than 677888 (a cheap guard that skips large files).
  • At least 7 patterns in the rule must match.

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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: 32741f62-64dd-567f-aa49-1cc4f42738e6

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