MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b3c455c0833628acb088290890eb1e44d154c0be5a69de5d52bb39715d0fcb68. 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: 9

Intelligence 9 IOCs YARA 5 File information Comments

SHA256 hash:	b3c455c0833628acb088290890eb1e44d154c0be5a69de5d52bb39715d0fcb68
SHA3-384 hash:	5fdb3150580f20e94b8d54b57ec5baa165517ba712b8452c581a3f078b27944f5023a7ac354d7825a0dbe4aaafb4e687
SHA1 hash:	fbd7a8eded4c5165d7d75f079fd513c6c3717501
MD5 hash:	e03991f32193cb883996aad7c0d62850
humanhash:	stairway-east-football-friend
File name:	b3c455c0833628ac.bin
Download:	download sample
Signature	Mirai Create hunting rule
File size:	78'488 bytes
First seen:	2026-10-04 04:24:35 UTC
Last seen:	Never
File type:	elf
MIME type:	application/x-executable
ssdeep	1536:34kSKSY79gLWoi3V9uiOUnuqnrTdF60gQaLsz41v8qx2jgKZoaLB:34wzg03V9uwnuGfdFCQa4U1xx2jgKVLB
TLSH	T19473F1564669F0E3C8E258E9BCB469FDB51CCBB04DBE25A255004488AF370DE13BB2D7
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	whack_sh
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) :	78'488 bytes
File size (de-compressed) :	186'116 bytes
Format:	linux/arm
Unpacked file:	0313cef6ee5ccac16714f02e3ff9dfd5181c55419f96a6443d9812f0d37a8eaa

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Details

Link:

https://research.acce.ciphertechsolutions.com/results/f3bdee70-11f2-44be-9fd0-6ac406db3a9e/

Detection(s):

SecuriteInfo.com.Linux.Rootkit.420.2804.16001.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Connection attempt

Kills processes

Changes owner for a written file

Launching a process

Runs as daemon

Creating a file

Manages services

Sets a file as executable

Collects information on the CPU

Creates directories

Receives data from a server

Sets a written file as executable

Locks files

Collects information on the RAM

Sends data to a server

Kills critical processes

Writes files to system subdirectory

Substitutes an application name

Creates or modifies files in /cron to set up autorun

Deleting of the original file

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

Gathering data

Verdict:

Malicious

File Type:

elf.32.le

First seen:

2026-10-04T00:21:00Z UTC

Last seen:

2026-10-06T00:49:00Z UTC

Hits:

~10

Link:

https://opentip.kaspersky.com/b3c455c0833628acb088290890eb1e44d154c0be5a69de5d52bb39715d0fcb68/results?tab=lookup

Status:

terminated

Link:

https://sandbox.kunai.rocks/analysis/24510886-9f6f-4374-b46c-29e93f6b3dfa

Behavior Graph:

Download SVG

Malware family:

Mirai

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/6cc54970-ee4a-4cfd-9749-ae1d93d2ec73

Score:

100%

Verdict:

Malware

File Type:

ELF

Link:

https://malprob.io/report/b3c455c0833628acb088290890eb1e44d154c0be5a69de5d52bb39715d0fcb68

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/b3c455c0833628acb088290890eb1e44d154c0be5a69de5d52bb39715d0fcb68/

Threat name:

Linux.Worm.Mirai

Status:

Malicious

First seen:

2026-10-04 04:25:36 UTC

File Type:

ELF32 Little (Exe)

AV detection:

11 of 24 (45.83%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=wpcflqedgyukzmeifeejb2y6itivjqf6lju54xksxm4xcxipznua._file

Result

Malware family:

n/a

Score:

7/10

Tags:

antivm defense_evasion discovery execution persistence privilege_escalation upx

Link:

https://tria.ge/reports/261004-e16hmavxas/

Behaviour

Reads runtime system information

Changes its process name

Checks CPU configuration

Reads system network configuration

UPX packed file

Creates/modifies Cron job

Deletes log files

Enumerates active TCP sockets

Enumerates running processes

Modifies rc script

Modifies systemd

Deletes itself

Deletes journal logs

Modifies the /etc/hosts DNS resolution 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/b3c455c0833628acb088290890eb1e44d154c0be5a69de5d52bb39715d0fcb68

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_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/