MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 921f5a12ca0a4f7a4b15004f9052a83fa649ac429517f658bcf4f727a847a680. 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 3 File information Comments

SHA256 hash:	921f5a12ca0a4f7a4b15004f9052a83fa649ac429517f658bcf4f727a847a680
SHA3-384 hash:	d2a0d8c1570e69cbf5944aafd12c2aef8531cff65c4f9044b3b43d476fd25bebaf00fe4fdc0a25b75c9ce4b8d15e635b
SHA1 hash:	f3ca6bad6d9dacfe4377415d95962c1d8002b6ce
MD5 hash:	f224b1d91662df7d83dc4eea2b9b6143
humanhash:	december-fillet-crazy-fruit
File name:	boatnet.mips
Download:	download sample
Signature	Mirai Create hunting rule
File size:	67'456 bytes
First seen:	2025-09-06 20:34:35 UTC
Last seen:	Never
File type:	elf
MIME type:	application/x-executable
ssdeep	1536:I13HScaKJvtugk7tUpYEd7yEvnKI0hubUnDVJu6:I13HTaKJvYArKPCuDVQ6
TLSH	T1386302539657819EC16E51F0AEF05FFBAFB6A47740A0CE8A72225CC0DFC246D278B644
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

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) :	67'456 bytes
File size (de-compressed) :	228'088 bytes
Format:	linux/mips
Unpacked file:	03c070132407d7dc3b3e106413ad6eea9ee596e6af512e354215589a6f936787

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a file in the %temp% directory

Sends data to a server

Creating a file

Sets a written file as executable

Connection attempt

Runs as daemon

Writes files to system directory

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

Verdict:

Unknown

Threat level:

0/10

Confidence:

100%

Tags:

masquerade packed threat upx

Link:

https://www.filescan.io/uploads/68bc9b2d37c25fcf12d5d43c/reports/bf530cb2-128e-4687-8be6-f507554f3bf8/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?

false

Remote TCP ports scanned:

not identified

Full report:

https://elfdigest.com/brief/921f5a12ca0a4f7a4b15004f9052a83fa649ac429517f658bcf4f727a847a680

Behaviour

Persistence

Botnet C2s

TCP botnet C2(s):

not identified

UDP botnet C2(s):

not identified

Verdict:

Malicious

File Type:

elf.32.be

First seen:

2025-09-06T17:41:00Z UTC

Last seen:

2025-09-06T17:41:00Z UTC

Hits:

~10

Detections:

HEUR:Backdoor.Linux.Mirai.h HEUR:Backdoor.Linux.Mirai.cw HEUR:Backdoor.Linux.Mirai.b

Link:

https://opentip.kaspersky.com/921f5a12ca0a4f7a4b15004f9052a83fa649ac429517f658bcf4f727a847a680/results?tab=lookup

Status:

terminated

Link:

https://sandbox.kunai.rocks/analysis/144b8808-52fb-4d37-aab7-48b9a11ac1a1

Behavior Graph:

Download SVG

Verdict:

Unknown

Link:

https://analyze.intezer.com/analyses/738f1d3e-5be5-4a40-96a2-806ebaf2aefa

Result

Threat name:

Mirai

Detection:

malicious

Classification:

troj.evad

Score:

72 / 100

Link:

https://www.joesandbox.com/analysis/1772466

Signature

Drops files in suspicious directories

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Sample is packed with UPX

Yara detected Mirai

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

ELF

Link:

https://malprob.io/report/921f5a12ca0a4f7a4b15004f9052a83fa649ac429517f658bcf4f727a847a680

Detection:

mirai

Link:

https://mwdb.cert.pl/sample/921f5a12ca0a4f7a4b15004f9052a83fa649ac429517f658bcf4f727a847a680/

Verdict:

Malicious

Threat:

Family.MIRAI

Link:

https://tip.neiki.dev/file/921f5a12ca0a4f7a4b15004f9052a83fa649ac429517f658bcf4f727a847a680

Threat name:

Linux.Trojan.Multiverze

Status:

Malicious

First seen:

2025-09-06 20:11:47 UTC

File Type:

ELF32 Big (Exe)

AV detection:

17 of 38 (44.74%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=sipvuewkbjhxusyvabhzauvih6tetlccsul7mwf46t3spkchu2aa._file

Result

Malware family:

mirai

Score:

10/10

Tags:

family:mirai botnet defense_evasion discovery persistence upx

Link:

https://tria.ge/reports/250906-zda4essybz/

Behaviour

System Network Configuration Discovery

Writes file to tmp directory

UPX packed file

Modifies rc script

Write file to user bin folder

Writes file to system bin folder

Modifies Watchdog functionality

Mirai

Mirai family

Verdict:

Unknown

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/5061c07f-b68d-47d5-a401-6c2272d69bec

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/921f5a12ca0a4f7a4b15004f9052a83fa649ac429517f658bcf4f727a847a680

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:	CP_AllMal_Detector Create hunting rule
Author:	DiegoAnalytics
Description:	CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication

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