MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4c5a58fb9836d08dc759c41c9beb5849c61838f4def522463d5e35e3f3a0679f. 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: 6

Intelligence 6 IOCs YARA 11 File information Comments

SHA256 hash:	4c5a58fb9836d08dc759c41c9beb5849c61838f4def522463d5e35e3f3a0679f
SHA3-384 hash:	d87b4e6cc888e0df345f3ac88beae45f3388640fc99d28f41b03e369f6e054fa11c92d0f345602079fcd3daad15152b6
SHA1 hash:	44f7e30092948b92149d2bcbe04983b463aee908
MD5 hash:	764f5299fa8b6706446fec2047a0570d
humanhash:	fish-coffee-high-california
File name:	reaver.mips
Download:	download sample
Signature	Mirai Create hunting rule
File size:	244'776 bytes
First seen:	2026-08-28 19:37:33 UTC
Last seen:	Never
File type:	elf
MIME type:	application/x-executable
ssdeep	3072:c4u7La2DWIJc1QcSpJMNLn21WdLXpj7sO5Cc8Kzy/QMHRCX:c4wLhWIJc1jSpSn24ZXRF5y/QLX
TLSH	T10D34A71E3E21DF3EF669C77447B78E71968872D726E1C184F15CD6091E2028E681FBA8
telfhash	t19631b2184b7813f4a7755c9d19ddff7be6a030db7a212c378e10a86ab76d9825e20c1c
Magika	elf
Reporter	abuse_ch
Tags:	elf mirai upx-dec

abuse_ch

UPX decompressed file, sourced from SHA256 9709f5f5bd7b670a2a79d309c1110b25ffe81a5b06aaf90dd0a3a3701907a046

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) :	75'700 bytes
File size (de-compressed) :	244'776 bytes
Format:	linux/mips
Packed file:	9709f5f5bd7b670a2a79d309c1110b25ffe81a5b06aaf90dd0a3a3701907a046

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

No detections

Detection(s):

Unix.Trojan.Mirai-8041698-0

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a file

Sets a written file as executable

Changes access rights for a written file

Creates or modifies symbolic links

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

Gains root access

Opens a port

Launching a process

Changes owner for a written file

Connection attempt

Creates or modifies files in /cron to set up autorun

Substitutes an application name

Writes files to system directory

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

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

Deleting of the original file

Verdict:

Malicious

File Type:

elf.32.be

First seen:

2026-08-28T17:45:00Z UTC

Last seen:

2026-08-30T13:46:00Z UTC

Hits:

~10

Link:

https://opentip.kaspersky.com/4c5a58fb9836d08dc759c41c9beb5849c61838f4def522463d5e35e3f3a0679f/results?tab=lookup

Status:

terminated

Link:

https://sandbox.kunai.rocks/analysis/16d1c7da-60ee-46b4-8977-0588c083cacf

Behavior Graph:

Download SVG

Verdict:

Unknown

Link:

https://analyze.intezer.com/analyses/523198df-8868-4483-a6fb-056178e2a46b

Score:

100%

Verdict:

Malware

File Type:

ELF

Link:

https://malprob.io/report/4c5a58fb9836d08dc759c41c9beb5849c61838f4def522463d5e35e3f3a0679f

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/4c5a58fb9836d08dc759c41c9beb5849c61838f4def522463d5e35e3f3a0679f/

Threat name:

Linux.Exploit.Mirai

Status:

Malicious

First seen:

2026-08-28 19:37:03 UTC

File Type:

ELF32 Big (Exe)

AV detection:

13 of 24 (54.17%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=jrnfr64yg3ii3r2zyqojx22yjhdbqohu332serr5ly26h45am6pq._file

Result

Malware family:

n/a

Score:

9/10

Tags:

defense_evasion discovery exection execution persistence privilege_escalation

Link:

https://tria.ge/reports/260828-ycj49ssfne/

Behaviour

Reads runtime system information

System Network Configuration Discovery

Writes file to tmp directory

Changes its process name

Reads system network configuration

Modifies Bash startup script

Creates/modifies Cron job

Creates/modifies environment variables

Enumerates active TCP sockets

Modifies init.d

Modifies rc script

Modifies systemd

Deletes itself

Modifies the /etc/hosts DNS resolution file

Modifies the dynamic linker configuration file

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/4c5a58fb9836d08dc759c41c9beb5849c61838f4def522463d5e35e3f3a0679f

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:	dependsonpythonailib Create hunting rule
Author:	Tim Brown
Description:	Hunts for dependencies on Python AI libraries

Rule name:	ELF_IoT_Persistence_Hunt Create hunting rule
Author:	4r4
Description:	Hunts for ELF files with persistence and download capabilities

Rule name:	ELF_Mirai Create hunting rule
Author:	NDA0E
Description:	Detects multiple Mirai variants

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:	Linux_Exploit_CVE_2021_4034_1c8f235d Create hunting rule
Author:	Elastic Security

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:	test_rule_vldslv Create hunting rule

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/