MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f5ef28c40529370de4b1846a110340afbb02c625cfb03a40de37f2bbba50fbef. 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: 11

Intelligence 11 IOCs YARA 26 File information Comments

SHA256 hash:	f5ef28c40529370de4b1846a110340afbb02c625cfb03a40de37f2bbba50fbef
SHA3-384 hash:	e97aed6492a4647e53a2c24968299329030301d2a56afc995f1d05712367018576460b0c35fdc6c76e489f1d273e5a78
SHA1 hash:	79e4286870c92febbc72e9801f083429597bb05e
MD5 hash:	a1767a2288c53fcb27be05c8d16dabea
humanhash:	timing-fish-hotel-hot
File name:	x86_64
Download:	download sample
Signature	Mirai Create hunting rule
File size:	625'192 bytes
First seen:	2026-10-05 17:38:50 UTC
Last seen:	Never
File type:	elf
MIME type:	application/x-executable
ssdeep	12288:RQ9kwa5NH7khiqDsF3qZ2WcJ8tct1ywvE:Pk0T6ZBQKGy
TLSH	T1B9D47D0379F094BEC8D6C0744B9B933A9D62F08A2239B58FBBC66E817E19E50771D741
telfhash	t1faf130340c76396972d7c251b303c26c5c332d0989fa35b5795278eeeddeac18db9852
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	abuse_ch
Tags:	elf gafgyt mirai

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

No detections

Detection(s):

Sanesecurity.Malware.29052.TSource.UNOFFICIAL

Sanesecurity.Malware.31075.LX.BOT.UNOFFICIAL

Unix.Dropper.Mirai-7540662-0

Unix.Trojan.Gafgyt-9940653-0

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a file

Creating a process from a recently created file

Sets a written file as executable

Receives data from a server

Collects information on the RAM

Sends data to a server

Kills processes

Connection attempt

Runs as daemon

Creating a file in the %temp% directory

Writes files to system directory

Substitutes an application name

Creates or modifies files in /cron to set up autorun

Performs a bruteforce attack in the network

Creates or modifies files in /init.d to set up autorun

Creates or modifies symbolic links in /init.d to set up autorun

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

gcc

Link:

https://www.filescan.io/uploads/6ac3e0ccb1bde7227b86a5c8/reports/9c6940bf-24d4-4017-9d62-b45fd4aecbd2/overview

Verdict:

Malicious

Uses P2P?:

false

Uses anti-vm?:

false

Architecture:

x86

Packer:

not packed

Botnet:

unknown

Number of open files:

Number of processes launched:

Processes remaning?

true

Remote TCP ports scanned:

23,2323,5555,8443

Full report:

https://elfdigest.com/brief/f5ef28c40529370de4b1846a110340afbb02c625cfb03a40de37f2bbba50fbef

Behaviour

Process Renaming

Information Gathering

Botnet C2s

TCP botnet C2(s):

not identified

UDP botnet C2(s):

not identified

Verdict:

Malicious

File Type:

elf.64.le

First seen:

2026-10-05T12:59:00Z UTC

Last seen:

2026-10-05T17:34:00Z UTC

Hits:

~10

Link:

https://opentip.kaspersky.com/f5ef28c40529370de4b1846a110340afbb02c625cfb03a40de37f2bbba50fbef/results?tab=lookup

Status:

terminated

Link:

https://sandbox.kunai.rocks/analysis/0df45150-d998-488b-840c-7bca41bc90b9

Behavior Graph:

Download SVG

Verdict:

Suspicious

Link:

https://analyze.intezer.com/analyses/1a79598a-2946-44bd-bf1f-3dadcfb4bc02

Score:

100%

Verdict:

Malware

File Type:

ELF

Link:

https://malprob.io/report/f5ef28c40529370de4b1846a110340afbb02c625cfb03a40de37f2bbba50fbef

Detection:

mirai

Link:

https://mwdb.cert.pl/sample/f5ef28c40529370de4b1846a110340afbb02c625cfb03a40de37f2bbba50fbef/

Threat name:

Linux.Backdoor.Gafgyt

Status:

Malicious

First seen:

2026-10-05 14:56:28 UTC

File Type:

ELF64 Little (Exe)

AV detection:

20 of 38 (52.63%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=6xxsrraffe3q3zfrqrvbca2av65qfrrfz6yduqg6g7zlxosq7pxq._file

Result

Malware family:

xmrig_linux

Score:

10/10

Tags:

family:xmrig_linux discovery execution linux miner persistence privilege_escalation

Link:

https://tria.ge/reports/261005-v8e9ea1vc1/

Behaviour

Reads runtime system information

Writes file to tmp directory

Changes its process name

Reads system network configuration

Creates/modifies Cron job

Enumerates active TCP sockets

Enumerates running processes

Modifies init.d

Modifies rc script

Family: xmrig

Malware family:

Gafgyt

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/f5ef28c40529/report/overview.html

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

Threat name:

Legit

Score:

0.20

Link:

https://yomi.yoroi.company/submissions/f5ef28c40529370de4b1846a110340afbb02c625cfb03a40de37f2bbba50fbef

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:	ach_202503_elf_Mirai Create hunting rule
Author:	abuse.ch
Description:	Detects Mirai 'TSource' ELF files

Rule name:	BLOWFISH_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for Blowfish constants

Rule name:	DetectEncryptedVariants Create hunting rule
Author:	Zinyth
Description:	Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded

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:	enterpriseapps2 Create hunting rule
Author:	Tim Brown @timb_machine
Description:	Enterprise apps

Rule name:	golang Create hunting rule

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

Rule name:	Linux_Trojan_Gafgyt_0cd591cd Create hunting rule
Author:	Elastic Security

Rule name:	Linux_Trojan_Gafgyt_33b4111a Create hunting rule
Author:	Elastic Security

Rule name:	Linux_Trojan_Gafgyt_620087b9 Create hunting rule
Author:	Elastic Security

Rule name:	Linux_Trojan_Gafgyt_807911a2 Create hunting rule
Author:	Elastic Security

Rule name:	Linux_Trojan_Gafgyt_9e9530a7 Create hunting rule
Author:	Elastic Security

Rule name:	Linux_Trojan_Gafgyt_a33a8363 Create hunting rule
Author:	Elastic Security

Rule name:	Linux_Trojan_Gafgyt_d0c57a2e Create hunting rule
Author:	Elastic Security

Rule name:	Linux_Trojan_Gafgyt_d4227dbf Create hunting rule
Author:	Elastic Security

Rule name:	Linux_Trojan_Gafgyt_d996d335 Create hunting rule
Author:	Elastic Security

Rule name:	MD5_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for MD5 constants

Rule name:	MIRAI_TELNETCURL_payload Create hunting rule
Author:	AfterPacket
Description:	Mirai-lineage ELF payload carrying the leaked-source decoy domain
Reference:	https://github.com/Afterpacket/drosera-threat-intel

Rule name:	NSVPS_Hydra_SSH_Bruteforce Create hunting rule
Author:	sanad (NSVPS-SOC)
Description:	Hydra SSH brute-force campaign credentials pattern from NSVPS honeypot

Rule name:	RANSOMWARE Create hunting rule
Author:	ToroGuitar

Rule name:	RIPEMD160_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for RIPEMD-160 constants

Rule name:	SHA1_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for SHA1 constants

Rule name:	SHA512_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for SHA384/SHA512 constants

Rule name:	telebot_framework Create hunting rule
Author:	vietdx.mb

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/