MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c3943d777a30ff7ff17f10d2b8a0fbb72fdcc9c53aacd5600f5b7a889cdda132. 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: 13

Intelligence 13 IOCs YARA 19 File information Comments

SHA256 hash:	c3943d777a30ff7ff17f10d2b8a0fbb72fdcc9c53aacd5600f5b7a889cdda132
SHA3-384 hash:	013b1e005a1655c2795803ed3ce9deaeb4c77691c7a8b23deca36259fa2abf00e1c9d0cc5d66b2d4788ddb7034348ac9
SHA1 hash:	3f370161c9cf90fa6c374fd5c634e09c4d694ecc
MD5 hash:	baf658ccce1e7ad7ee2f7418094521b5
humanhash:	sweet-blue-tennis-lactose
File name:	db0fa4b8db0333367e9bda3ab68b8042.i686
Download:	download sample
Signature	Mirai Create hunting rule
File size:	74'512 bytes
First seen:	2026-04-08 15:56:38 UTC
Last seen:	Never
File type:	elf
MIME type:	application/x-executable
ssdeep	1536:0/8IhWh7Iyvz7EydD3cXEq/AxPuKI/v44x/uGWKp:0/VWqyb7EydD3GdYxyw4x/T/
TLSH	T12D731782F98B45F5D907493060ABF63FDA31E579407097ADEF4EAF34DE23A01921624E
telfhash	t1bd1104fa1e360cd4b7c02442c24e6630794e97bf2a6032a301f31935327e99244bbd3a
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 f4df0e01516f6daa70d94eec1324e103e4115df17bd651fc4db65b1650b02251

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) :	33'072 bytes
File size (de-compressed) :	74'512 bytes
Format:	linux/i386
Packed file:	f4df0e01516f6daa70d94eec1324e103e4115df17bd651fc4db65b1650b02251

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/c9382aac-a03f-44aa-8031-ac7e9c340e5a/

Result

Verdict:

Malware

Maliciousness:

Behaviour

Connection attempt

Sends data to a server

Runs as daemon

Opens a port

DNS request

Substitutes an application name

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

masquerade mirai obfuscated obfuscated threat

Link:

https://www.filescan.io/uploads/69d67aecd920e19044f41c19/reports/ada7f754-b539-4d68-8c57-526942acaa09/overview

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?

true

Remote TCP ports scanned:

37215,23

Full report:

https://elfdigest.com/brief/c3943d777a30ff7ff17f10d2b8a0fbb72fdcc9c53aacd5600f5b7a889cdda132

Behaviour

Process Renaming

Botnet C2s

TCP botnet C2(s):

not identified

UDP botnet C2(s):

not identified

Verdict:

Malicious

File Type:

elf.32.le

First seen:

2026-04-08T14:07:00Z UTC

Last seen:

2026-04-08T15:27:00Z UTC

Hits:

~10

Link:

https://opentip.kaspersky.com/c3943d777a30ff7ff17f10d2b8a0fbb72fdcc9c53aacd5600f5b7a889cdda132/results?tab=lookup

Status:

Failed

Link:

https://sandbox.kunai.rocks/analysis/79252594-c1ac-4d9b-8e52-948b12008a8f

Malware family:

Mirai

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/a1c1c81b-4bfb-435e-9b4f-611c6ae9d3c6

Score:

100%

Verdict:

Malware

File Type:

ELF

Link:

https://malprob.io/report/c3943d777a30ff7ff17f10d2b8a0fbb72fdcc9c53aacd5600f5b7a889cdda132

Detection:

mirai

Link:

https://mwdb.cert.pl/sample/c3943d777a30ff7ff17f10d2b8a0fbb72fdcc9c53aacd5600f5b7a889cdda132/

Threat name:

Linux.Backdoor.Mirai

Status:

Malicious

First seen:

2026-04-08 15:57:47 UTC

File Type:

ELF32 Little (Exe)

AV detection:

19 of 24 (79.17%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=yokd2532gd7x74l7cdjlrih3w4x5zsofhkwnkyapln5irhg5ueza._file

Result

Malware family:

mirai

Score:

10/10

Tags:

family:mirai botnet:unstable defense_evasion discovery linux

Link:

https://tria.ge/reports/260408-td68zahs5v/

Behaviour

Reads runtime system information

Changes its process name

Enumerates running processes

Writes file to system bin folder

Modifies Watchdog functionality

Contacts a large (102756) amount of remote hosts

Creates a large amount of network flows

Malware Config

C2 Extraction:

scan.504.su

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/c3943d777a30ff7ff17f10d2b8a0fbb72fdcc9c53aacd5600f5b7a889cdda132

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:	CVE_2017_17215 Create hunting rule
Author:	NDA0E
Description:	Detects exploitation attempt of CVE-2017-17215

Rule name:	ELF_Mirai Create hunting rule
Author:	NDA0E
Description:	Detects multiple Mirai variants

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_c8385b81 Create hunting rule
Author:	Elastic Security

Rule name:	Linux_Trojan_Mirai_cc93863b Create hunting rule
Author:	Elastic Security

Rule name:	MAL_ELF_LNX_Mirai_Oct10_1 Create hunting rule
Author:	Florian Roth (Nextron Systems)
Description:	Detects ELF Mirai variant
Reference:	Internal Research

Rule name:	MAL_ELF_LNX_Mirai_Oct10_1_RID2F39 Create hunting rule
Author:	Florian Roth
Description:	Detects ELF Mirai variant
Reference:	Internal Research

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

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/