MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7c21a4775a1661966cdbcf11a5b4901bafdff56bf132d35679a41dc1b22bd227. 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: 6

Intelligence 6 IOCs YARA 5 File information Comments

SHA256 hash:	7c21a4775a1661966cdbcf11a5b4901bafdff56bf132d35679a41dc1b22bd227
SHA3-384 hash:	ac6a1e08d16b1f034f03ce8e7ff73abb780a2e0b855e41746df92d5d0aab974692ec34bf9171d43921bfdbd14132901a
SHA1 hash:	9ab055f49090d90ffb102ca4498036ad7c019d25
MD5 hash:	3474477dbcee0a3609fcb8256b58709a
humanhash:	double-whiskey-oscar-july
File name:	i486
Download:	download sample
Signature	Mirai Create hunting rule
File size:	68'024 bytes
First seen:	2026-10-28 06:26:36 UTC
Last seen:	2026-10-28 07:23:42 UTC
File type:	elf
MIME type:	application/x-executable
ssdeep	1536:p6DKCKbqXcinoHDIqmJBhIR/JENvYN/b79KTVUNvHWnouy8Lzkk+:q/Xc+oIqmzhI6gNFKTiN/moutUk+
TLSH	T134630247369E428CCC1C817C3D1F5C0D26184A5EA98551ECDACCA66B8CA6E9B34AA379
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 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) :	68'024 bytes
File size (de-compressed) :	144'212 bytes
Format:	linux/i386
Unpacked file:	bcfd24e3080c4834f4288812d2b539c30b851008745b945377cd54eb37e467fa

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Details

Link:

https://research.acce.ciphertechsolutions.com/results/c2e5ee08-c2ce-4d0c-83ee-402fead52c8d/

Detection(s):

SecuriteInfo.com.Linux.Mirai.10456.22913.16310.UNOFFICIAL

Gathering data

Status:

terminated

Link:

https://sandbox.kunai.rocks/analysis/cc86b2bc-07fd-4d74-a574-93a5e95a4edb

Behavior Graph:

Download SVG

Verdict:

Suspicious

Link:

https://analyze.intezer.com/analyses/c26c8be7-d1fb-49f9-8451-924cc3ee84ea

Score:

100%

Verdict:

Malware

File Type:

ELF

Link:

https://malprob.io/report/7c21a4775a1661966cdbcf11a5b4901bafdff56bf132d35679a41dc1b22bd227

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/7c21a4775a1661966cdbcf11a5b4901bafdff56bf132d35679a41dc1b22bd227/

Threat name:

Linux.Trojan.Multiverze

Status:

Malicious

First seen:

2026-10-27 21:44:11 UTC

File Type:

ELF32 Little (Exe)

AV detection:

10 of 36 (27.78%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=pqq2i522czqzm3g3z4i2lneqdox575ll6ezngvtzuqo4dmrl2itq._file

Result

Malware family:

n/a

Score:

7/10

Tags:

antivm defense_evasion discovery execution linux persistence privilege_escalation upx

Link:

https://tria.ge/reports/261028-g7y38syxhx/

Behaviour

Command and Scripting Interpreter: Unix Shell

Reads runtime system information

System Network Configuration Discovery

Writes file to shm directory

Writes file to tmp directory

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 system 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:

Suspicious File

Score:

0.45

Link:

https://yomi.yoroi.company/submissions/7c21a4775a1661966cdbcf11a5b4901bafdff56bf132d35679a41dc1b22bd227

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/