MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cfffb4ba5c297535368840ad796b4a997839369068f60b932121b99301fd1d2d. 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 6 File information Comments

SHA256 hash:	cfffb4ba5c297535368840ad796b4a997839369068f60b932121b99301fd1d2d
SHA3-384 hash:	f89dc040755566c90085954912e1ded9aafd14801fb7c650f216cbe67820ae8627244146616b1b5e1c3e63725f93f549
SHA1 hash:	112bdab8e5d3b9a4aab97d134e154524b4b36ce4
MD5 hash:	7e7d3b4db1a1aa155179db10a6bb0d4d
humanhash:	asparagus-montana-triple-undress
File name:	ub8ehJSePAfc9FYqZIT6.mips
Download:	download sample
Signature	Mirai Create hunting rule
File size:	176'884 bytes
First seen:	2026-01-18 14:20:49 UTC
Last seen:	Never
File type:	elf
MIME type:	application/x-executable
ssdeep	3072:3jlthWe9z9w4ZukZchHvi6qHDOi/GYAk+1cgWduu6gpG0:TltvckZchHvi6qZ981pWl6wG0
TLSH	T17404965D6E228F7EFAB8827447B34E21975923DA23E1D6C4D1ACD2001F6025E641FBF9
telfhash	t142418e180e7817e4a3396c8d199dff7796a330db7e166c778e11e86aa7799839d00c0c
Magika	elf
Reporter	abuse_ch
Tags:	elf mirai upx-dec

abuse_ch

UPX decompressed file, sourced from SHA256 97191fe1ba3fa398b99396ba2d4d2c2756c6a47f9af51283583ee632cb5cd51d

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) :	53'380 bytes
File size (de-compressed) :	176'884 bytes
Format:	linux/mips
Packed file:	97191fe1ba3fa398b99396ba2d4d2c2756c6a47f9af51283583ee632cb5cd51d

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/2cd61dfb-e742-415c-9c35-4b2a973155e9/

Verdict:

Malicious

File Type:

elf.32.be

First seen:

2026-01-18T09:31:00Z UTC

Last seen:

2026-01-18T11:42:00Z UTC

Hits:

~10

Detections:

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

Link:

https://opentip.kaspersky.com/cfffb4ba5c297535368840ad796b4a997839369068f60b932121b99301fd1d2d/results?tab=lookup

Status:

terminated

Link:

https://sandbox.kunai.rocks/analysis/a19b4f1d-5af9-4fe7-a51d-299782845e51

Behavior Graph:

Download SVG

Verdict:

Unknown

Link:

https://analyze.intezer.com/analyses/e0cb6012-768b-4ab6-9bfe-a9b803b75627

Result

Threat name:

n/a

Detection:

malicious

Classification:

n/a

Score:

64 / 100

Link:

https://www.joesandbox.com/analysis/1852812

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/cfffb4ba5c297535368840ad796b4a997839369068f60b932121b99301fd1d2d

Detection:

mirai

Link:

https://mwdb.cert.pl/sample/cfffb4ba5c297535368840ad796b4a997839369068f60b932121b99301fd1d2d/

Verdict:

Malicious

Threat:

Family.MIRAI

Link:

https://tip.neiki.dev/file/cfffb4ba5c297535368840ad796b4a997839369068f60b932121b99301fd1d2d

Threat name:

Linux.Worm.Mirai

Status:

Malicious

First seen:

2026-01-18 14:21:56 UTC

File Type:

ELF32 Big (Exe)

AV detection:

21 of 38 (55.26%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=z773jos4ff2tknuiicwxs22ktf4dsnuqnd3axezbeg4zgap5duwq._file

Result

Malware family:

mirai

Score:

10/10

Tags:

family:mirai defense_evasion discovery

Link:

https://tria.ge/reports/260118-rn7w5sfs2g/

Behaviour

Reads runtime system information

System Network Configuration Discovery

Writes file to tmp directory

Changes its process name

Writes file to system bin folder

Modifies Watchdog functionality

Verdict:

Malicious

Tags:

botnet mirai Unix.Trojan.Mirai-7100807-0

YARA:

Mirai_Botnet_Malware

Link:

https://app.threat.zone/submission/370c4160-8cb3-4b99-9185-8a766756b333

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_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