MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bfb780442cb5b2f6d12ed100b572a03503b9ae6565db1f898d84629dc4c344d9. 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: 9

Intelligence 9 IOCs YARA 5 File information Comments

SHA256 hash:	bfb780442cb5b2f6d12ed100b572a03503b9ae6565db1f898d84629dc4c344d9
SHA3-384 hash:	b76d98a659680c0c3f1257e90f6be0c350f0d0b78c162765c88b8acd9935f4712514cc57c5386abb6d4bcaa8d3eca074
SHA1 hash:	9466b6c8b5dbf2beb4f02721ce837ecf293e29f3
MD5 hash:	c2803f1ab6e68e6ba61cc11e65e433e2
humanhash:	bakerloo-london-happy-juliet
File name:	x86
Download:	download sample
Signature	Mirai Create hunting rule
File size:	52'984 bytes
First seen:	2026-09-22 16:58:13 UTC
Last seen:	2026-09-23 04:10:24 UTC
File type:	elf
MIME type:	application/x-executable
ssdeep	1536:VpwGb6M8LzbRUR0bvZq3+Lej6Al5nouy8/:Vpd6M8beR0aWdMout/
TLSH	T1D73302CFD1D6D99ED3BBF07205FAF5A2E403880E6C4694E4C9D4B8B2456328436B4F85
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) :	52'984 bytes
File size (de-compressed) :	108'384 bytes
Format:	linux/i386
Unpacked file:	0c9aa15215174701665037faa0986fd1f8c77172780cb916a8b8164284b9f16b

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Details

Link:

https://research.acce.ciphertechsolutions.com/results/3b6e9700-ae0c-4c8b-aaf9-a98667e7707e/

Result

Verdict:

Malware

Maliciousness:

Behaviour

Kills processes

Launching a process

Runs as daemon

Changes access rights for a written file

Opens a port

Receives data from a server

Changes the time when the file was created, accessed, or modified

Connection attempt

DNS request

Creating a file

Creates or modifies symbolic links

Sets a written file as executable

Sends data to a server

Writes files to system subdirectory

Writes files to system directory

Creates or modifies files in /cron to set up autorun

Performs a bruteforce attack in the network

Creates or modifies symbolic links in /init.d to set up autorun

Creates or modifies files in /init.d to set up autorun

Creates or modifies files to set up autorun

Deleting of the original file

Verdict:

Unknown

Threat level:

0/10

Confidence:

100%

Tags:

packed upx

Link:

https://www.filescan.io/uploads/6ab2b3e26739f6a640861b8e/reports/4c7ac79d-301e-49df-b347-ed501bb72bb4/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:

Full report:

https://elfdigest.com/brief/bfb780442cb5b2f6d12ed100b572a03503b9ae6565db1f898d84629dc4c344d9

Behaviour

Persistence

Botnet C2s

TCP botnet C2(s):

not identified

UDP botnet C2(s):

not identified

Status:

terminated

Link:

https://sandbox.kunai.rocks/analysis/e5810fcc-39da-4593-bad3-f3007574fb88

Behavior Graph:

Download SVG

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/74a572dd-852f-407f-873e-cd1e77874d56

Result

Threat name:

Gafgyt, Mirai

Detection:

malicious

Classification:

spre.troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1976357

Signature

Drops files in suspicious directories

Executes the "crontab" command typically for achieving persistence

Found malware configuration

Malicious sample detected (through community Yara rule)

Modifies the '.bashrc' or '.bash_profile' file typically for persisting actions

Multi AV Scanner detection for submitted file

Protects files from modification

Sample deletes itself

Sample is packed with UPX

Sample reads /proc/mounts (often used for finding a writable filesystem)

Sample tries to persist itself using .desktop files

Sample tries to persist itself using /etc/profile

Sample tries to persist itself using cron

Sample tries to persist itself using System V runlevels

Sample tries to set files in /etc globally writable

Suricata IDS alerts for network traffic

Writes identical ELF files to multiple locations

Yara detected Gafgyt

Yara detected Mirai

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

ELF

Link:

https://malprob.io/report/bfb780442cb5b2f6d12ed100b572a03503b9ae6565db1f898d84629dc4c344d9

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/bfb780442cb5b2f6d12ed100b572a03503b9ae6565db1f898d84629dc4c344d9/

Threat name:

Linux.Backdoor.Gafgyt

Status:

Malicious

First seen:

2026-09-22 16:59:27 UTC

File Type:

ELF32 Little (Exe)

AV detection:

9 of 36 (25.00%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=x63yarbmwwzpnujo2ealk4vagub3tltfmxnr7cmnqrrj3rgditmq._file

Result

Malware family:

n/a

Score:

9/10

Tags:

defense_evasion discovery execution linux persistence privilege_escalation upx

Link:

https://tria.ge/reports/260922-vhg1baba23/

Behaviour

Reads runtime system information

System Network Configuration Discovery

Creates a desktop entry file

Modifies Bash startup script

UPX packed file

Creates/modifies Cron job

Creates/modifies environment variables

Modifies init.d

Modifies rc script

Modifies systemd

Deletes itself

Modifies Watchdog functionality

Modifies the /etc/hosts DNS resolution file

Contacts a large (29992) 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:

Malicious File

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/bfb780442cb5b2f6d12ed100b572a03503b9ae6565db1f898d84629dc4c344d9

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:	CP_Script_Inject_Detector Create hunting rule
Author:	DiegoAnalytics
Description:	Detects attempts to inject code into another process across PE, ELF, Mach-O binaries

Rule name:	ELF_IoT_DVR_Botnet_Hama_UPX Create hunting rule
Author:	Serhii Kocherhan
Description:	Detects packed and unpacked ELF IoT/DVR botnet variants targeting UPX compression structures and uncompressed code

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/