MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 efa731b59f9e2f277336072fe5c72b488793c842e2efeedf5cb571a0eeb224e2. 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 3 File information Comments

SHA256 hash:	efa731b59f9e2f277336072fe5c72b488793c842e2efeedf5cb571a0eeb224e2
SHA3-384 hash:	eafa0bb8dfd574c2340ea7314a4172a8611e400901a81f256be683ff313728ec9697370d6c2fd35ef914b2982e94e693
SHA1 hash:	2c1775ee86fa501ef87c7bc14aa849b1716f61ab
MD5 hash:	f65de2728c489ebec26fe37afbcb9b1e
humanhash:	sierra-connecticut-ohio-ohio
File name:	efa731b59f9e2f277336072fe5c72b488793c842e2efeedf5cb571a0eeb224e2
Download:	download sample
Signature	Mirai Create hunting rule
File size:	1'446'604 bytes
First seen:	2026-07-22 23:31:13 UTC
Last seen:	2026-07-22 23:32:47 UTC
File type:	elf
MIME type:	application/x-executable
ssdeep	24576:xSAQa9HmfTcRtRRWI+ZDTL9BYBGwevXs/9VYk3covvUq1kPbJY9yjFLqtVKVYeYn:3Qa9H8cXoDvrYBGwxVAobmbJY9WW/K6F
TLSH	T1A165338C02969A7AC27B43F3FD6F4096A5997709FF41F7C3CA2684584DC7E62D881AD0
Magika	elf
Reporter	c2hunter
Tags:	elf mirai UPX wraith

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) :	1'446'604 bytes
File size (de-compressed) :	3'924'792 bytes
Format:	linux/arm
Unpacked file:	a8b6f96c0e23b700f97b4104142d75888b2dd2f91d00119810be625958485046

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Details

Link:

https://research.acce.ciphertechsolutions.com/results/a4a0e0d6-c141-48c0-84b6-d07c45795635/

Result

Verdict:

Clean

Maliciousness:

Behaviour

Creating a file

Verdict:

Unknown

Threat level:

0/10

Confidence:

100%

Tags:

packed upx

Link:

https://www.filescan.io/uploads/6a6152dbdcd931b1df9b1599/reports/250e364e-1783-4d40-a2af-1c669a0e85b1/overview

Verdict:

Malicious

Uses P2P?:

false

Uses anti-vm?:

false

Architecture:

arm

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/efa731b59f9e2f277336072fe5c72b488793c842e2efeedf5cb571a0eeb224e2

Behaviour

no suspicious findings

Botnet C2s

TCP botnet C2(s):

not identified

UDP botnet C2(s):

not identified

Status:

terminated

Link:

https://sandbox.kunai.rocks/analysis/798c245d-e022-4236-8fb6-76df48191c25

Behavior Graph:

Download SVG

Verdict:

Suspicious

Link:

https://analyze.intezer.com/analyses/8c4b3595-4dd5-4ac8-82d1-c89d8d50f5f5

Score:

100%

Verdict:

Malware

File Type:

ELF

Link:

https://malprob.io/report/efa731b59f9e2f277336072fe5c72b488793c842e2efeedf5cb571a0eeb224e2

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/efa731b59f9e2f277336072fe5c72b488793c842e2efeedf5cb571a0eeb224e2/

Threat name:

Linux.Trojan.Generic

Status:

Suspicious

First seen:

2026-07-22 23:31:32 UTC

File Type:

ELF32 Little (Exe)

AV detection:

6 of 36 (16.67%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=56ttdnm7tyxso4zwa4x6lrzljcdzhscc4lx65x24wvy2b3vsetra._file

Result

Malware family:

n/a

Score:

9/10

Tags:

antivm discovery execution persistence privilege_escalation upx

Link:

https://tria.ge/reports/260722-3hxprsap5w/

Behaviour

Enumerates kernel/hardware configuration

Reads runtime system information

Changes its process name

Checks CPU configuration

Reads CPU attributes

Creates/modifies Cron job

Enumerates running processes

Reads network interface configuration

Creates Raw socket

Contacts a large (146700) amount of remote hosts

Creates a large amount of network flows

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/efa731b59f9e2f277336072fe5c72b488793c842e2efeedf5cb571a0eeb224e2

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:	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/