MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 557ff907fb7b490f44577aecca1bfac899aa704f7bb8a91ec3ab9c8c5d5f83aa. 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: 9

Intelligence 9 IOCs YARA 2 File information Comments

SHA256 hash:	557ff907fb7b490f44577aecca1bfac899aa704f7bb8a91ec3ab9c8c5d5f83aa
SHA3-384 hash:	de9e8ad49e37b2ed2a7a72afc6d64838131f087d72ac93b787398d5cceff52dc72a499127de8e529a49af784483caf30
SHA1 hash:	933fcb765cf71747e71349d487c2086b5c51d3eb
MD5 hash:	49efb8e0bfc81c8eae04bf21bebde12a
humanhash:	batman-iowa-leopard-georgia
File name:	mips
Download:	download sample
Signature	Mirai Create hunting rule
File size:	36'284 bytes
First seen:	2026-02-28 20:56:15 UTC
Last seen:	Never
File type:	elf
MIME type:	application/x-executable
ssdeep	768:mJdC4xeq0dLaRDaotGW9yeJNL3mqZW0EUlJlGFW3u6lJgGlzDpbuR1JtP:KU42h7otGhe7L3mqQcScVJuPP
TLSH	T109F2F1FF27279C37D64690778AC31B517EB41F3A91062E193467F683C88485431A75DC
TrID	50.1% (.) ELF Executable and Linkable format (Linux) (4022/12) 49.8% (.O) ELF Executable and Linkable format (generic) (4000/1)
Magika	elf
Reporter	juroots
Tags:	elf mirai UPX

UPX packed

This file is packed with UPX. We have therefore unpacked the file. Below is furhter information about the unpacked (de-compressed) file.

File size (compressed) :	36'284 bytes
File size (de-compressed) :	105'216 bytes
Format:	linux/mips
Unpacked file:	dde077063725c5543d14a1a7f59dcbef10f97919a562859992c27ec96327cde1

Intelligence

File Origin

# of uploads :

# of downloads :

137

Origin country :

Vendor Threat Intelligence

Details

Link:

https://research.acce.ciphertechsolutions.com/results/69f30fd2-0e40-4602-ae80-a61685837ee7/

Verdict:

Malicious

Uses P2P?:

false

Uses anti-vm?:

false

Architecture:

mips

Packer:

UPX

Botnet:

unknown

Number of open files:

Number of processes launched:

Processes remaning?

false

Remote TCP ports scanned:

not identified

Full report:

https://elfdigest.com/brief/557ff907fb7b490f44577aecca1bfac899aa704f7bb8a91ec3ab9c8c5d5f83aa

Behaviour

no suspicious findings

Botnet C2s

TCP botnet C2(s):

not identified

UDP botnet C2(s):

not identified

Result

Gathering data

Verdict:

Malicious

File Type:

elf.32.be

Link:

https://opentip.kaspersky.com/557ff907fb7b490f44577aecca1bfac899aa704f7bb8a91ec3ab9c8c5d5f83aa/results?tab=lookup

Status:

Failed

Link:

https://sandbox.kunai.rocks/analysis/419cc80f-7215-4412-bfb5-0b1e126f86fd

Verdict:

Unknown

Link:

https://analyze.intezer.com/analyses/b640a438-d4ff-441d-95f5-627eaf2fda6f

Score:

100%

Verdict:

Malware

File Type:

ELF

Link:

https://malprob.io/report/557ff907fb7b490f44577aecca1bfac899aa704f7bb8a91ec3ab9c8c5d5f83aa

Detection:

mirai

Link:

https://mwdb.cert.pl/sample/557ff907fb7b490f44577aecca1bfac899aa704f7bb8a91ec3ab9c8c5d5f83aa/

Threat name:

Linux.Worm.Mirai

Status:

Malicious

First seen:

2026-02-27 06:19:59 UTC

File Type:

ELF32 Big (Exe)

AV detection:

17 of 36 (47.22%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=kv77sb73pneq6rcxplwmug72zcm2u4cppo4kshwdvooiyxk7qova._file

Result

Malware family:

mirai

Score:

10/10

Tags:

family:mirai botnet:mirai botnet credential_access defense_evasion discovery upx

Link:

https://tria.ge/reports/260228-zq79pagv8c/

Behaviour

Reads runtime system information

System Network Configuration Discovery

Changes its process name

Reads process memory

Deletes itself

Modifies Watchdog functionality

Contacts a large (186123) amount of remote hosts

Creates a large amount of network flows

Mirai

Mirai family

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/557ff907fb7b490f44577aecca1bfac899aa704f7bb8a91ec3ab9c8c5d5f83aa

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:	SUSP_ELF_LNX_UPX_Compressed_File Create hunting rule
Author:	Florian Roth (Nextron Systems)
Description:	Detects a suspicious ELF binary with UPX compression
Reference:	Internal Research