MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f4dd831c5ac9c7b0cce76e5bf610723af474d68540b8748a1415cba2048020e1. 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: 10

Intelligence 10 IOCs YARA 13 File information Comments

SHA256 hash:	f4dd831c5ac9c7b0cce76e5bf610723af474d68540b8748a1415cba2048020e1
SHA3-384 hash:	d778148344691b22c9fb1908074980eabfa491b63dbafc04e97a023c77420bc61a81462c7bd41c73c9761d4e32611079
SHA1 hash:	04583eecb5b29e03c3e6888fff5f21e9969ae3b6
MD5 hash:	0cdc826f811908f5571f53f96eac960b
humanhash:	gee-pizza-stream-crazy
File name:	cosmic.i686
Download:	download sample
Signature	Mirai Create hunting rule
File size:	70'416 bytes
First seen:	2026-01-25 01:26:29 UTC
Last seen:	Never
File type:	elf
MIME type:	application/x-executable
ssdeep	1536:99IEpE5HVjXLbHZbVCzpKXwY49cuPbYAeWky81:4EpE5HVjXfHHIKhEcuD9bkF
TLSH	T170630AC4F5C785F5C81B893860ABF73FCA32E57A80719BADEF8A5E32D6277015201259
telfhash	t1761186f51a3f4ceca7c06c04a21e9745696ae37b545436a30133897531afe8250bbd79
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-dec

abuse_ch

UPX decompressed file, sourced from SHA256 0221e5cf99e2b0ec07ba30f1ccb321b6c44ee03812711d65df53ddbf4cf4d93f

UPX unpacked

This file is the unpacked version of a file that has been packed with UPX. Below is furhter information about the parent (compressed) file.

File size (compressed) :	29'456 bytes
File size (de-compressed) :	70'416 bytes
Format:	linux/i386
Packed file:	0221e5cf99e2b0ec07ba30f1ccb321b6c44ee03812711d65df53ddbf4cf4d93f

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Malware configuration found for:

Mirai

Details

Mirai

an XOR decryption key and at least a c2 socket address

Link:

https://research.acce.ciphertechsolutions.com/results/da8dcd01-3ae1-46bc-a398-ac4dce826db7/

Verdict:

Malicious

Uses P2P?:

false

Uses anti-vm?:

false

Architecture:

x86

Packer:

not packed

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/f4dd831c5ac9c7b0cce76e5bf610723af474d68540b8748a1415cba2048020e1

Behaviour

no suspicious findings

Botnet C2s

TCP botnet C2(s):

not identified

UDP botnet C2(s):

not identified

Verdict:

Malicious

File Type:

elf.32.le

First seen:

2026-01-24T19:10:00Z UTC

Last seen:

2026-01-25T01:07:00Z UTC

Hits:

~10

Link:

https://opentip.kaspersky.com/f4dd831c5ac9c7b0cce76e5bf610723af474d68540b8748a1415cba2048020e1/results?tab=lookup

Status:

terminated

Link:

https://sandbox.kunai.rocks/analysis/3c90b811-5d35-4a51-958c-ddf1ff1d973d

Behavior Graph:

Download SVG

Gathering data

Result

Threat name:

Mirai

Detection:

malicious

Classification:

troj

Score:

72 / 100

Link:

https://www.joesandbox.com/analysis/1857057

Signature

Antivirus / Scanner detection for submitted sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Yara detected Mirai

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

ELF

Link:

https://malprob.io/report/f4dd831c5ac9c7b0cce76e5bf610723af474d68540b8748a1415cba2048020e1

Detection:

mirai

Link:

https://mwdb.cert.pl/sample/f4dd831c5ac9c7b0cce76e5bf610723af474d68540b8748a1415cba2048020e1/

Threat name:

Linux.Worm.Mirai

Status:

Malicious

First seen:

2026-01-25 00:00:58 UTC

File Type:

ELF32 Little (Exe)

AV detection:

26 of 37 (70.27%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=6toyghc2zhd3bthhnzn7medshl2hjvufic4hjcqucxf2ebeaedqq._file

Result

Malware family:

mirai

Score:

10/10

Tags:

family:mirai linux

Link:

https://tria.ge/reports/260125-bval8ab19g/

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/f4dd831c5ac9c7b0cce76e5bf610723af474d68540b8748a1415cba2048020e1

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

Rule name:	Linux_Trojan_Mirai_0cb1699c Create hunting rule
Author:	Elastic Security

Rule name:	Linux_Trojan_Mirai_0d73971c Create hunting rule
Author:	Elastic Security

Rule name:	Linux_Trojan_Mirai_268aac0b Create hunting rule
Author:	Elastic Security

Rule name:	Linux_Trojan_Mirai_2e3f67a9 Create hunting rule
Author:	Elastic Security

Rule name:	Linux_Trojan_Mirai_3a85a418 Create hunting rule
Author:	Elastic Security

Rule name:	Linux_Trojan_Mirai_485c4b13 Create hunting rule
Author:	Elastic Security

Rule name:	Linux_Trojan_Mirai_70ef58f1 Create hunting rule
Author:	Elastic Security

Rule name:	Linux_Trojan_Mirai_7d05725e Create hunting rule
Author:	Elastic Security

Rule name:	Linux_Trojan_Mirai_88de437f Create hunting rule
Author:	Elastic Security

Rule name:	Linux_Trojan_Mirai_cc93863b Create hunting rule
Author:	Elastic Security

Rule name:	SUSP_XORed_Mozilla_Oct19 Create hunting rule
Author:	Florian Roth
Description:	Detects suspicious single byte XORed keyword 'Mozilla/5.0' - it uses yara's XOR modifier and therefore cannot print the XOR key. You can use the CyberChef recipe linked in the reference field to brute force the used key.
Reference:	https://gchq.github.io/CyberChef/#recipe=XOR_Brute_Force()

Rule name:	SUSP_XORed_Mozilla_RID2DB4 Create hunting rule
Author:	Florian Roth
Description:	Detects suspicious XORed keyword - Mozilla/5.0
Reference:	Internal Research