MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4437be3d2ed219a46c6796213c9fcb5d583ffe781148753583d63289e389d231. 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: 7

Intelligence 7 IOCs YARA 6 File information Comments

SHA256 hash:	4437be3d2ed219a46c6796213c9fcb5d583ffe781148753583d63289e389d231
SHA3-384 hash:	9560cddfa0c702dd5dcab9961cd004648d72221bab1458b0ff88e7f74b32cb0241d19b4ee5e566b0a47cb9e9490efd40
SHA1 hash:	8c04be840fba20b5f56329db2e6a57de30f61926
MD5 hash:	7548897115c50b8c54295e0905923e63
humanhash:	pluto-michigan-wisconsin-island
File name:	reaver.x86
Download:	download sample
Signature	Mirai Create hunting rule
File size:	71'468 bytes
First seen:	2026-08-28 19:36:48 UTC
Last seen:	2026-08-29 19:06:40 UTC
File type:	elf
MIME type:	application/x-executable
ssdeep	1536:dY2RNiafy2Lwr2fqQLPuXlobkqAXT5riMPcTOOOgRUxQgnouy8E:dhXiafy05LaobkqAX9rpP6nOgWQIoutE
TLSH	T1BE630244489FFA5DE4CC41349EAB8F5755C6CB9FF408483EF74A49BB4791B2E1A4D088
Magika	elf
Reporter	BlinkzSec
Tags:	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) :	71'468 bytes
File size (de-compressed) :	160'756 bytes
Format:	linux/i386
Unpacked file:	ca60c0c2a332f0c53170be40f59ef9a27a4c8fb6134bdcbed121547b7a36bf3e

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Details

Link:

https://research.acce.ciphertechsolutions.com/results/bfd5d521-5ca0-43fc-83cc-1ad37c746db7/

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a file

Creates or modifies symbolic links

Opens a port

Launching a process

Deletes a file

Sets a written file as executable

Sends data to a server

Runs as daemon

Kills processes

Connection attempt

Changes access rights for a written file

Creating a process from a recently created file

Gains root access

Changes owner for a written file

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

Creates or modifies files in /cron to set up autorun

Substitutes an application name

Writes files to system subdirectory

Writes files to system directory

Creates or modifies files to set up autorun

Deleting of the original file

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

File Type:

elf.32.le

First seen:

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

Last seen:

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

Hits:

~10

Link:

https://opentip.kaspersky.com/4437be3d2ed219a46c6796213c9fcb5d583ffe781148753583d63289e389d231/results?tab=lookup

Status:

Failed

Link:

https://sandbox.kunai.rocks/analysis/ca069759-e2e0-426c-9ab8-bf0e2d11e873

Verdict:

Suspicious

Link:

https://analyze.intezer.com/analyses/14a465d4-1c7a-4af2-8791-c11daa44a6ff

Score:

100%

Verdict:

Malware

File Type:

ELF

Link:

https://malprob.io/report/4437be3d2ed219a46c6796213c9fcb5d583ffe781148753583d63289e389d231

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/4437be3d2ed219a46c6796213c9fcb5d583ffe781148753583d63289e389d231/

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=iq334pjo2im2i3dhsyqtzh6llvmd77tycfehknmd2yzity4j2iyq._file

Result

Malware family:

n/a

Score:

9/10

Tags:

defense_evasion discovery exection execution linux persistence privilege_escalation upx

Link:

https://tria.ge/reports/260828-ybyk9ssvbs/

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

UPX packed file

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:

Malicious File

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/4437be3d2ed219a46c6796213c9fcb5d583ffe781148753583d63289e389d231

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_Script_Inject_Detector Create hunting rule
Author:	DiegoAnalytics
Description:	Detects attempts to inject code into another process across PE, ELF, Mach-O binaries

Rule name:	ELF_IoT_DVR_Botnet_Hama_UPX Create hunting rule
Author:	Serhii Kocherhan
Description:	Detects packed and unpacked ELF IoT/DVR botnet variants targeting UPX compression structures and uncompressed code

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

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

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/