MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3fc03da2b086a20cfeb572fe0eecdf99cd79cc0b5912ea1d9aa44090dcc0f9e6. 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 2 File information Comments

SHA256 hash:	3fc03da2b086a20cfeb572fe0eecdf99cd79cc0b5912ea1d9aa44090dcc0f9e6
SHA3-384 hash:	9a0c43ceb781e3a7690fd23d6436cf00d656c07943e91265b40f2cb3cf4f60806e9a12887ec04bba4919cb2fd5158061
SHA1 hash:	9f41e81c4307f08a807a1c03070f440188c884af
MD5 hash:	8b05f86b54028d6cc85b7422ca5dfe19
humanhash:	wisconsin-india-south-victor
File name:	windy.x86
Download:	download sample
Signature	Mirai Create hunting rule
File size:	39'684 bytes
First seen:	2025-11-18 17:40:33 UTC
Last seen:	Never
File type:	elf
MIME type:	application/x-executable
ssdeep	768:1AW+GkX7xgBSxKLgTcSw7SShpFPmq+YudKMjOF72pYfOn+GjT8QjXsw3nbcuyD7C:19sGBSxKcTc3eiwD/OF72pHnJH8QjXZx
TLSH	T1AA03E04495838649F159B63C00BF71CB08E0F6674ECAA47EA740A0FF98D7BB2016D6CB
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

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) :	39'684 bytes
File size (de-compressed) :	79'444 bytes
Format:	linux/i386
Unpacked file:	d9cc85bc8eb5a36032ac19e8e5d98770371f09ef7c84420d8df9bbbf86172e11

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Detection(s):

Unix.Dropper.Mirai-7135858-0

Result

Verdict:

Malware

Maliciousness:

Behaviour

Connection attempt

Sends data to a server

Runs as daemon

Opens a port

DNS request

Verdict:

Unknown

Threat level:

0/10

Confidence:

100%

Tags:

masquerade packed upx

Link:

https://www.filescan.io/uploads/691cafad96b510474f565c95/reports/5c492d68-a89e-4f1b-b612-3de5a2a83c25/overview

Verdict:

Malicious

Uses P2P?:

false

Uses anti-vm?:

false

Architecture:

x86

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/3fc03da2b086a20cfeb572fe0eecdf99cd79cc0b5912ea1d9aa44090dcc0f9e6

Behaviour

Information Gathering

Botnet C2s

TCP botnet C2(s):

not identified

UDP botnet C2(s):

not identified

Verdict:

Malicious

File Type:

elf.32.le

First seen:

2025-11-18T15:52:00Z UTC

Last seen:

2025-11-18T16:39:00Z UTC

Hits:

~10

Link:

https://opentip.kaspersky.com/3fc03da2b086a20cfeb572fe0eecdf99cd79cc0b5912ea1d9aa44090dcc0f9e6/results?tab=lookup

Status:

terminated

Link:

https://sandbox.kunai.rocks/analysis/1a7ac4d8-10c3-457d-ad30-b42e7687624c

Behavior Graph:

Download SVG

Malware family:

Mirai

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/64dc8f6e-2abd-4689-af66-374e18641c8d

Result

Threat name:

n/a

Detection:

malicious

Classification:

evad

Score:

60 / 100

Link:

https://www.joesandbox.com/analysis/1816375

Signature

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Sample is packed with UPX

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

ELF

Link:

https://malprob.io/report/3fc03da2b086a20cfeb572fe0eecdf99cd79cc0b5912ea1d9aa44090dcc0f9e6

Detection:

mirai

Link:

https://mwdb.cert.pl/sample/3fc03da2b086a20cfeb572fe0eecdf99cd79cc0b5912ea1d9aa44090dcc0f9e6/

Threat name:

Linux.Worm.Mirai

Status:

Malicious

First seen:

2025-11-18 17:41:41 UTC

File Type:

ELF32 Little (Exe)

AV detection:

18 of 24 (75.00%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=h7ad3ivqq2raz7vvol7a53g7thgxttallejouhm2urajbxga7hta._file

Result

Malware family:

mirai

Score:

10/10

Tags:

family:mirai botnet defense_evasion discovery linux upx

Link:

https://tria.ge/reports/251118-v9kkhsak8x/

Behaviour

Reads runtime system information

Enumerates running processes

Writes file to system bin folder

Modifies Watchdog functionality

Mirai

Mirai family

Malware Config

C2 Extraction:

bot.sinestreacute.fun

Verdict:

Malicious

Tags:

Unix.Dropper.Mirai-7135858-0

YARA:

n/a

Link:

https://app.threat.zone/submission/b69df16b-c939-4b18-920f-3e0ae7ab264d

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

Suspicious File

Score:

0.65

Link:

https://yomi.yoroi.company/submissions/3fc03da2b086a20cfeb572fe0eecdf99cd79cc0b5912ea1d9aa44090dcc0f9e6

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