MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 21d5cfebf93f1af7ee1b464b3e959b336994eaec02bfd4ac86678f6234738436. 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 10 File information Comments

SHA256 hash:	21d5cfebf93f1af7ee1b464b3e959b336994eaec02bfd4ac86678f6234738436
SHA3-384 hash:	3c26d5c31d56c010b1eb3605690e99dcd7d4683192360902f10d5b41a0b9a42f6c8a112031adad317c10a17b9e02e97d
SHA1 hash:	557ac051be6d481b43fc54b19b15bd6a0e1be1af
MD5 hash:	4675ec26137b782861ccc746e7ab1d02
humanhash:	xray-xray-emma-wolfram
File name:	boatnet.arm5
Download:	download sample
Signature	Mirai Create hunting rule
File size:	46'320 bytes
First seen:	2026-04-07 09:11:51 UTC
Last seen:	Never
File type:	elf
MIME type:	application/x-executable
ssdeep	768:9bfPA1RUGzxhmlgTgDqEVd4YrLOPsiNiepK0eRAw1V+6ogLMQ/BNoE9w:hHAnF3mmTgzLO/NppK0eRpP+gZ
TLSH	T1EF230752BCD28A56CAE02376FA7E02CD331163A9D1DF7267CD105B10368991F4D77B82
telfhash	t120e02600bc658b5988d79a74ad9d07b49901621254668b14cf10d6f0983f458a308e5a
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 mirai upx-dec

abuse_ch

UPX decompressed file, sourced from SHA256 b5e6e77181adc081ed345193096cfba3f6b6d07beca9f9fcbd73e839714e2856

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) :	22'556 bytes
File size (de-compressed) :	46'320 bytes
Format:	linux/arm
Packed file:	b5e6e77181adc081ed345193096cfba3f6b6d07beca9f9fcbd73e839714e2856

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Gathering data

Detection(s):

SecuriteInfo.com.Linux.Mirai-63.UNOFFICIAL

Sanesecurity.Malware.30419.LX.M0Z.UNOFFICIAL

Sanesecurity.Malware.30435.LC.UNOFFICIAL

Unix.Trojan.Mirai-7100807-0

Unix.Dropper.Mirai-7136013-0

Unix.Dropper.Mirai-7136057-0

Unix.Dropper.Mirai-7136070-0

Unix.Trojan.Mirai-8025795-0

Unix.Trojan.Mirai-9858729-0

Result

Verdict:

Malware

Maliciousness:

Gathering data

Verdict:

Malicious

Uses P2P?:

false

Uses anti-vm?:

false

Architecture:

arm

Packer:

not packed

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/21d5cfebf93f1af7ee1b464b3e959b336994eaec02bfd4ac86678f6234738436

Behaviour

no suspicious findings

Botnet C2s

TCP botnet C2(s):

not identified

UDP botnet C2(s):

not identified

Verdict:

Malicious

File Type:

elf.32.le

First seen:

2026-04-07T05:27:00Z UTC

Last seen:

2026-04-07T07:49:00Z UTC

Hits:

~10

Link:

https://opentip.kaspersky.com/21d5cfebf93f1af7ee1b464b3e959b336994eaec02bfd4ac86678f6234738436/results?tab=lookup

Status:

terminated

Link:

https://sandbox.kunai.rocks/analysis/0a71c2a7-2c72-47f8-8ac5-3e71185753f9

Behavior Graph:

Download SVG

Malware family:

Mirai

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/d7664b97-d0e0-4d08-875b-1861a918b073

Result

Threat name:

Mirai

Detection:

malicious

Classification:

troj

Score:

80 / 100

Link:

https://www.joesandbox.com/analysis/1894476

Signature

Antivirus / Scanner detection for submitted sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Yara detected Mirai

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

ELF

Link:

https://malprob.io/report/21d5cfebf93f1af7ee1b464b3e959b336994eaec02bfd4ac86678f6234738436

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/21d5cfebf93f1af7ee1b464b3e959b336994eaec02bfd4ac86678f6234738436/

Threat name:

Linux.Worm.Mirai

Status:

Malicious

First seen:

2026-04-07 09:14:13 UTC

File Type:

ELF32 Little (Exe)

AV detection:

18 of 24 (75.00%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=ehk4727zh4npp3q3izft5fm3gnuzj2xmak75jlegm6hwendtqq3a._file

Result

Malware family:

mirai

Score:

10/10

Tags:

family:mirai botnet:mirai

Link:

https://tria.ge/reports/260407-k6ppyscz5r/

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/21d5cfebf93f1af7ee1b464b3e959b336994eaec02bfd4ac86678f6234738436

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:	Linux_Mirai_Generic Create hunting rule
Author:	albertzsigovits
Description:	Generic Approach to Mirai/Gafgyt samples

Rule name:	MAL_ELF_LNX_Mirai_Oct10_2 Create hunting rule
Author:	Florian Roth (Nextron Systems)
Description:	Detects ELF malware Mirai related
Reference:	Internal Research

Rule name:	MAL_ELF_LNX_Mirai_Oct10_2_RID2F3A Create hunting rule
Author:	Florian Roth
Description:	Detects ELF malware Mirai related
Reference:	Internal Research

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:	setsockopt Create hunting rule
Author:	Tim Brown @timb_machine
Description:	Hunts for setsockopt() red flags

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

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/