MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4399fa27c65884809cc77f7d8f81cef6ecf163f2890d9302d6932f2b65122e85. 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 2 File information Comments

SHA256 hash:	4399fa27c65884809cc77f7d8f81cef6ecf163f2890d9302d6932f2b65122e85
SHA3-384 hash:	aedec3386d05d3bf54a2772112c11f1666cd8b0d439639f7e686902d9038e03e72d56d00974ccbe660c174b98defccf8
SHA1 hash:	030f16ca305915a350153695579ed6bc0c98af37
MD5 hash:	2b6998b9391d628b21fe8705e9262097
humanhash:	nitrogen-kansas-network-nitrogen
File name:	xnxnxnxnxnxnxnxnx86_64xnxn
Download:	download sample
Signature	Mirai Create hunting rule
File size:	60'668 bytes
First seen:	2025-11-25 09:44:26 UTC
Last seen:	Never
File type:	elf
MIME type:	application/x-executable
ssdeep	1536:E7S1symLz4ab7sU4Gpk+x5cpzT2M2h5cBiWAQZ:EW63jsFhzKME5AUQZ
TLSH	T1E85302928A223327F86C60BDBBB14995C7C9ACB49D76D38B2A5C105B22B0F48601E48D
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 gafgyt 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) :	60'668 bytes
File size (de-compressed) :	127'904 bytes
Format:	linux/amd64
Unpacked file:	10ba69b4fb8f5811c1c114ac3ebf9386491166d65114df24e144a1ba7cf5ff19

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Result

Verdict:

Malware

Maliciousness:

Behaviour

Connection attempt

Kills processes

Sends data to a server

Creating a file in the %temp% directory

Receives data from a server

Creating a file

Locks files

Runs as daemon

Deletes a file

DNS request

Substitutes an application name

Verdict:

Unknown

Threat level:

2.5/10

Confidence:

100%

Tags:

gafgyt packed upx

Link:

https://www.filescan.io/uploads/69257ac1061d7ed6038c21cc/reports/611c9da2-5235-4369-bdea-27282bb28b19/overview

Verdict:

Malicious

Uses P2P?:

false

Uses anti-vm?:

true

Architecture:

x86

Packer:

UPX

Botnet:

unknown

Number of open files:

Number of processes launched:

Processes remaning?

true

Remote TCP ports scanned:

not identified

Full report:

https://elfdigest.com/brief/4399fa27c65884809cc77f7d8f81cef6ecf163f2890d9302d6932f2b65122e85

Behaviour

Anti-VM

Process Renaming

Information Gathering

Botnet C2s

TCP botnet C2(s):

not identified

UDP botnet C2(s):

not identified

Verdict:

Malicious

File Type:

elf.64.le

First seen:

2025-11-25T07:28:00Z UTC

Last seen:

2025-11-25T10:19:00Z UTC

Hits:

~10

Link:

https://opentip.kaspersky.com/4399fa27c65884809cc77f7d8f81cef6ecf163f2890d9302d6932f2b65122e85/results?tab=lookup

Status:

Failed

Link:

https://sandbox.kunai.rocks/analysis/d76901bb-17f6-4473-80d5-0b3a75403430

Malware family:

Mirai

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/4881ddc5-00b6-416f-b321-ab120e5368e8

Result

Threat name:

n/a

Detection:

suspicious

Classification:

evad

Score:

21 / 100

Link:

https://www.joesandbox.com/analysis/1820418

Signature

Sample is packed with UPX

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

ELF

Link:

https://malprob.io/report/4399fa27c65884809cc77f7d8f81cef6ecf163f2890d9302d6932f2b65122e85

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/4399fa27c65884809cc77f7d8f81cef6ecf163f2890d9302d6932f2b65122e85/

Threat name:

Linux.Trojan.Gafgyt

Status:

Suspicious

First seen:

2025-11-25 09:45:34 UTC

File Type:

ELF64 Little (Exe)

AV detection:

7 of 24 (29.17%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=iom7uj6glccibhghp56y7aoo63wpcy7sregzgawwsmxswzisf2cq._file

Result

Malware family:

n/a

Score:

7/10

Tags:

antivm defense_evasion discovery linux upx

Link:

https://tria.ge/reports/251125-lrcbravjgl/

Behaviour

Reads runtime system information

Writes file to tmp directory

Changes its process name

Reads system network configuration

Checks hardware identifiers (DMI)

Deletes log files

Enumerates active TCP sockets

Enumerates running processes

Deletes Audit logs

Deletes journal logs

Deletes system logs

Verdict:

Unknown

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/ea6a3a89-6285-4ccc-a08a-78884cf1027e

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

Threat name:

Malicious File

Score:

0.84

Link:

https://yomi.yoroi.company/submissions/4399fa27c65884809cc77f7d8f81cef6ecf163f2890d9302d6932f2b65122e85

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