MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b557ea5da43f6f8b03fdf394f2fa94ccb8ae1499854dddb9873f8fedefbf369b. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry

Mirai

Vendor detections: 12

Intelligence 12 IOCs YARA 6 File information Comments

SHA256 hash:	b557ea5da43f6f8b03fdf394f2fa94ccb8ae1499854dddb9873f8fedefbf369b
SHA3-384 hash:	0744f91cd330dc4d15c779b5ae13a71cece2b59c3325ec146d21a277b8fbee78b3bbc416d189b80a87ffe11683e2f75c
SHA1 hash:	527630b5292fe06257df1396f73b029d46579ff6
MD5 hash:	446a4f3032d6eb1e6897fc36c318eefd
humanhash:	colorado-sixteen-earth-coffee
File name:	ub8ehJSePAfc9FYqZIT6.mips
Download:	download sample
Signature	Mirai Create hunting rule
File size:	174'124 bytes
First seen:	2026-02-08 12:31:17 UTC
Last seen:	Never
File type:	elf
MIME type:	application/x-executable
ssdeep	3072:Y2e+VrVslZWt7ndFORhv1+7LOHTvYO3AQmchAREkNwBtN568sO5N1dJkInOCJGyM:YnvWt7ndFORhv1+7LOHTvYO3AQmchARt
TLSH	T18E04855D6E229F7DFAB8823457B34E20975923E622D1D684D2ACD2001F3029E645FBF9
telfhash	t1ed416d180a7817e463786c99199dff77d6a330de7e125c338f51e86aab699835d10c0c
Magika	elf
Reporter	abuse_ch
Tags:	elf mirai upx-dec

abuse_ch

UPX decompressed file, sourced from SHA256 cc65128ca415ce856ec533b877c95a4f3fdcf0b24d08a15fdf1b9a289fb37c40

UPX unpacked

This file is the unpacked version of a file that has been packed with UPX. Below is furhter information about the parent (compressed) file.

File size (compressed) :	52'880 bytes
File size (de-compressed) :	174'124 bytes
Format:	linux/mips
Packed file:	cc65128ca415ce856ec533b877c95a4f3fdcf0b24d08a15fdf1b9a289fb37c40

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Malware configuration found for:

Mirai

Details

Mirai

an XOR decryption key and at least a c2 socket address

Link:

https://research.acce.ciphertechsolutions.com/results/1105e113-013c-413d-8d53-159bd04da42d/

Result

Verdict:

Malware

Maliciousness:

Behaviour

Opens a port

Runs as daemon

Deletes a file

DNS request

Connection attempt

Locks files

Substitutes an application name

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

botnet masquerade mirai obfuscated

Link:

https://www.filescan.io/uploads/6988824d930564ff3c92434d/reports/7176e29c-0a70-4425-ba79-8c85f6ee38eb/overview

Verdict:

Malicious

File Type:

elf.32.be

First seen:

2026-02-08T09:38:00Z UTC

Last seen:

2026-02-10T03:55:00Z UTC

Hits:

~10

Detections:

HEUR:Backdoor.Linux.Mirai.r HEUR:Backdoor.Linux.Mirai.b

Link:

https://opentip.kaspersky.com/b557ea5da43f6f8b03fdf394f2fa94ccb8ae1499854dddb9873f8fedefbf369b/results?tab=lookup

Status:

Failed

Link:

https://sandbox.kunai.rocks/analysis/be245446-687e-4606-9123-eb733be2715b

Gathering data

Result

Threat name:

n/a

Detection:

malicious

Classification:

n/a

Score:

64 / 100

Link:

https://www.joesandbox.com/analysis/1865548

Signature

Antivirus / Scanner detection for submitted sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

ELF

Link:

https://malprob.io/report/b557ea5da43f6f8b03fdf394f2fa94ccb8ae1499854dddb9873f8fedefbf369b

Detection:

mirai

Link:

https://mwdb.cert.pl/sample/b557ea5da43f6f8b03fdf394f2fa94ccb8ae1499854dddb9873f8fedefbf369b/

Verdict:

Malicious

Threat:

Family.MIRAI

Link:

https://tip.neiki.dev/file/b557ea5da43f6f8b03fdf394f2fa94ccb8ae1499854dddb9873f8fedefbf369b

Threat name:

Linux.Worm.Mirai

Status:

Malicious

First seen:

2026-02-08 12:32:31 UTC

File Type:

ELF32 Big (Exe)

AV detection:

16 of 24 (66.67%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=wvl6uxneh5xywa756okpf6uuzs4k4fezqvg53omhh6h63357g2nq._file

Result

Malware family:

mirai

Score:

10/10

Tags:

family:mirai defense_evasion discovery

Link:

https://tria.ge/reports/260208-pqp31acy6e/

Behaviour

System Network Configuration Discovery

Writes file to tmp directory

Changes its process name

Writes file to system bin folder

Modifies Watchdog functionality

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

Legit

Score:

0.00

Link:

https://yomi.yoroi.company/submissions/b557ea5da43f6f8b03fdf394f2fa94ccb8ae1499854dddb9873f8fedefbf369b

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:	ELF_Toriilike_persist Create hunting rule
Author:	4r4
Description:	Detects Torii IoT Botnet (stealthier Mirai alternative)
Reference:	Identified via researched data

Rule name:	Mirai_Botnet_Malware Create hunting rule
Author:	Florian Roth (Nextron Systems)
Description:	Detects Mirai Botnet Malware
Reference:	Internal Research

Rule name:	Mirai_Botnet_Malware_RID2EF6 Create hunting rule
Author:	Florian Roth
Description:	Detects Mirai Botnet Malware
Reference:	Internal Research

Rule name:	SUSP_XORed_Mozilla_Oct19 Create hunting rule
Author:	Florian Roth
Description:	Detects suspicious single byte XORed keyword 'Mozilla/5.0' - it uses yara's XOR modifier and therefore cannot print the XOR key. You can use the CyberChef recipe linked in the reference field to brute force the used key.
Reference:	https://gchq.github.io/CyberChef/#recipe=XOR_Brute_Force()

Rule name:	SUSP_XORed_Mozilla_RID2DB4 Create hunting rule
Author:	Florian Roth
Description:	Detects suspicious XORed keyword - Mozilla/5.0
Reference:	Internal Research