MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f4ab659f21704cd76931de75dff3c4e955ed47405b40a15a7be43f3a81cc7fa2. 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: 10

Intelligence 10 IOCs YARA 5 File information Comments

SHA256 hash:	f4ab659f21704cd76931de75dff3c4e955ed47405b40a15a7be43f3a81cc7fa2
SHA3-384 hash:	a75730f65149d4307c7674d8f5ceca4dc3fc682487297ddab54e5cfd86833bef273c787739e13f4c52428c312497e300
SHA1 hash:	5db5c666238de3c34e2cbfdaac992b4379a85c28
MD5 hash:	3f5835b7362129e81ea81adca8f0fbfa
humanhash:	kansas-west-hotel-artist
File name:	sever1078.mips
Download:	download sample
Signature	Mirai Create hunting rule
File size:	241'084 bytes
First seen:	2026-09-24 00:22:07 UTC
Last seen:	Never
File type:	elf
MIME type:	application/x-executable
ssdeep	6144:1YLNZQmwXOFpasAoRlJ0ra8xphgMOMmMaG5iir:qLNZQmQIAsAQj0r5x5i0
TLSH	T1B734234C0E051D4BC1A4A169410CED04BAABED75E584CC7DCB5DAADB4B3CF422AC7B36
TrID	50.1% (.) ELF Executable and Linkable format (Linux) (4022/12) 49.8% (.O) ELF Executable and Linkable format (generic) (4000/1)
Magika	unknown
Reporter	abuse_ch
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) :	241'084 bytes
File size (de-compressed) :	624'240 bytes
Format:	linux/mips
Unpacked file:	b507655ae627029dcd4ecfdcc8b73cc6b85b93c3cb44beec1ffdf28b6fe1adb1

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Details

Link:

https://research.acce.ciphertechsolutions.com/results/5e3c810c-e0f5-435c-a829-fc009453a73e/

Detection(s):

Unix.Tool.Flood-9938486-0

Result

Verdict:

Malware

Maliciousness:

Behaviour

Kills processes

Creating a process from a recently created file

Sets a written file as executable

Changes the time when the file was created, accessed, or modified

Launching a process

Opens a port

Connection attempt

Receives data from a server

Sends data to a server

Runs as daemon

Manages services

DNS request

Changes access rights for a written file

Creating a file

Substitutes an application name

Creates or modifies files in /cron to set up autorun

Verdict:

Unknown

Threat level:

2.5/10

Confidence:

100%

Tags:

masquerade packed upx

Link:

https://www.filescan.io/uploads/6ab46d6165e7373b8397cfae/reports/769f8dce-35f4-4ed7-86f3-aab49cdd40e0/overview

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?

true

Remote TCP ports scanned:

2323,5555,23

Full report:

https://elfdigest.com/brief/f4ab659f21704cd76931de75dff3c4e955ed47405b40a15a7be43f3a81cc7fa2

Behaviour

Process Renaming

Information Gathering

Botnet C2s

TCP botnet C2(s):

not identified

UDP botnet C2(s):

not identified

Verdict:

Malicious

File Type:

elf.32.be

First seen:

2026-09-23T22:32:00Z UTC

Last seen:

2026-09-24T04:44:00Z UTC

Hits:

~10

Link:

https://opentip.kaspersky.com/f4ab659f21704cd76931de75dff3c4e955ed47405b40a15a7be43f3a81cc7fa2/results?tab=lookup

Status:

terminated

Link:

https://sandbox.kunai.rocks/analysis/fe7c3a11-efd8-48b3-83a0-d8c8d77cf87c

Behavior Graph:

Download SVG

Verdict:

Unknown

Link:

https://analyze.intezer.com/analyses/b2446d76-495d-4348-b2fc-2f89edd974ac

Score:

100%

Verdict:

Malware

File Type:

ELF

Link:

https://malprob.io/report/f4ab659f21704cd76931de75dff3c4e955ed47405b40a15a7be43f3a81cc7fa2

Detection:

mirai

Link:

https://mwdb.cert.pl/sample/f4ab659f21704cd76931de75dff3c4e955ed47405b40a15a7be43f3a81cc7fa2/

Threat name:

Linux.Worm.Mirai

Status:

Malicious

First seen:

2026-09-24 00:23:31 UTC

File Type:

ELF32 Big (Exe)

AV detection:

10 of 36 (27.78%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=6svwlhzbobgno2jr3z25746e5fk62r2alnakcwt34q7tvaomp6ra._file

Result

Malware family:

mirai

Score:

10/10

Tags:

family:mirai botnet defense_evasion discovery execution persistence privilege_escalation upx

Link:

https://tria.ge/reports/260924-an6weahd47/

Behaviour

Enumerates kernel/hardware configuration

Reads runtime system information

System Network Configuration Discovery

Writes file to tmp directory

Changes its process name

Reads system network configuration

UPX packed file

Creates/modifies Cron job

Enumerates active TCP sockets

Enumerates running processes

Modifies systemd

Writes file to system bin folder

Executes dropped EXE

Modifies Watchdog functionality

Contacts a large (44962) amount of remote hosts

Creates a large amount of network flows

Family: Mirai

Malware Config

C2 Extraction:

bigbigvol.qd.je

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

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_IoT_DVR_Botnet_Hama_UPX Create hunting rule
Author:	Serhii Kocherhan
Description:	Detects packed and unpacked ELF IoT/DVR botnet variants targeting UPX compression structures and uncompressed code

Rule name:	linux_generic_ipv6_catcher Create hunting rule
Author:	@_lubiedo
Description:	ELF samples using IPv6 addresses

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

Rule name:	TH_Generic_MassHunt_Linux_Malware_2026_CYFARE Create hunting rule
Author:	CYFARE
Description:	Generic Linux malware mass-hunt rule - 2026
Reference:	https://cyfare.net/