MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 12087bc187ea1e677a07f587d47d9b544f9fd4e59cdcf314cc3647f57a1a4c34. 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: 7

Intelligence 7 IOCs YARA 11 File information Comments

SHA256 hash:	12087bc187ea1e677a07f587d47d9b544f9fd4e59cdcf314cc3647f57a1a4c34
SHA3-384 hash:	0a07f86861244c7ff6a60384308dccc8c710b84402b47a199dd6c7bf098d81f499734846cf59d660b3e36c197eb17368
SHA1 hash:	83a553e45568b4a1da66f85f48baa137caf97baa
MD5 hash:	fabb94073c5f136a09a610634583c757
humanhash:	purple-jersey-fish-friend
File name:	ntb.x64
Download:	download sample
Signature	Mirai Create hunting rule
File size:	208'448 bytes
First seen:	2026-08-08 18:01:39 UTC
Last seen:	Never
File type:	elf
MIME type:	application/x-executable
ssdeep	3072:6pzya7tAH6JhAlfFI/ja0l48kDwmNneT1bu7/LraKbKubbdeqZNAQ:6pzRtA4hAlfFOja0RkFNn8qnWKb31Xd
TLSH	T195146D07F58090FED486D174C7DFC3B2B936B89D221979972BD42E763E2AF10260D691
telfhash	t12961ac300e9178b52357d9057307d2acde331844c5e972dcba82bdf9ec9aa85cd82477
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 mirai upx-dec

abuse_ch

UPX decompressed file, sourced from SHA256 37a07f7b75f44c949925f52a09e463c6179511a0556a05fc5f30799212aa9a3d

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) :	100'684 bytes
File size (de-compressed) :	208'448 bytes
Format:	linux/amd64
Packed file:	37a07f7b75f44c949925f52a09e463c6179511a0556a05fc5f30799212aa9a3d

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

No detections

Detection(s):

Sanesecurity.Malware.29325.LC.Pl.UNOFFICIAL

SecuriteInfo.com.Linux.Mirai-81.UNOFFICIAL

SecuriteInfo.com.Linux.Mirai-31.UNOFFICIAL

Sanesecurity.Malware.29052.TSource.UNOFFICIAL

Unix.Trojan.Mirai-9441505-0

Unix.Trojan.Mirai-10011027-0

Unix.Trojan.Mirai-10011918-0

Result

Verdict:

Malware

Maliciousness:

Behaviour

Kills processes

Creating a process from a recently created file

Sets a written file as executable

Launching a process

Manages services

Sends data to a server

Runs as daemon

Collects information on the CPU

Creating a file in the %temp% directory

Collects information on the RAM

Creating a file

Substitutes an application name

Creates or modifies files in /cron to set up autorun

Creates or modifies files to set up autorun

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

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

Verdict:

Unknown

Threat level:

0/10

Confidence:

100%

Tags:

expand gcc golang lolbin masquerade

Link:

https://www.filescan.io/uploads/6a776f35d510c8630da3dfe0/reports/afa49b4a-4921-4b94-bb1c-75fae420f883/overview

Status:

terminated

Link:

https://sandbox.kunai.rocks/analysis/3684dc50-20f1-4930-83b4-5718d7c1a8c8

Behavior Graph:

Download SVG

Verdict:

Unknown

Link:

https://analyze.intezer.com/analyses/1375886d-039d-474f-aeca-afead1ba9c94

Result

Threat name:

n/a

Detection:

malicious

Classification:

spre.troj.evad.mine

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1954452

Signature

Antivirus / Scanner detection for submitted sample

Antivirus detection for dropped file

Drops files in suspicious directories

Drops invisible ELF files

Found strings related to Crypto-Mining

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

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

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

Tries to open /proc/mtd (commonly found in embedded devices)

Writes identical ELF files to multiple locations

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

ELF

Link:

https://malprob.io/report/12087bc187ea1e677a07f587d47d9b544f9fd4e59cdcf314cc3647f57a1a4c34

Detection:

mirai

Link:

https://mwdb.cert.pl/sample/12087bc187ea1e677a07f587d47d9b544f9fd4e59cdcf314cc3647f57a1a4c34/

Threat name:

Linux.Trojan.Gafgyt

Status:

Malicious

First seen:

2026-08-08 18:02:40 UTC

File Type:

ELF64 Little (Exe)

AV detection:

10 of 36 (27.78%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=ciehxqmh5ipgo6qh6wd5i7m3krhz7vhfttopgfgmgzd7k6q2jq2a._file

Result

Malware family:

n/a

Score:

9/10

Tags:

antivm defense_evasion discovery exection execution linux persistence privilege_escalation

Link:

https://tria.ge/reports/260808-wmb6aswvdx/

Behaviour

Reads runtime system information

Writes file to shm directory

Writes file to tmp directory

Changes its process name

Checks CPU configuration

Modifies Bash startup script

Creates/modifies Cron job

Creates/modifies environment variables

Enumerates running processes

Modifies init.d

Modifies rc script

Modifies systemd

Schedules an At job

Executes dropped EXE

Modifies the dynamic linker configuration file

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

Threat name:

Suspicious File

Score:

0.30

Link:

https://yomi.yoroi.company/submissions/12087bc187ea1e677a07f587d47d9b544f9fd4e59cdcf314cc3647f57a1a4c34

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:	DetectEncryptedVariants Create hunting rule
Author:	Zinyth
Description:	Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded

Rule name:	ELF_IoT_Persistence_Hunt Create hunting rule
Author:	4r4
Description:	Hunts for ELF files with persistence and download capabilities

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

Rule name:	enterpriseapps2 Create hunting rule
Author:	Tim Brown @timb_machine
Description:	Enterprise apps

Rule name:	has_telegram_urls Create hunting rule
Author:	Aaron DeVera<aaron@backchannel.re>
Description:	Detects Telegram URLs

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

Rule name:	Linux_Trojan_Gafgyt_28a2fe0c Create hunting rule
Author:	Elastic Security

Rule name:	RANSOMWARE Create hunting rule
Author:	ToroGuitar

Rule name:	SHA512_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for SHA384/SHA512 constants

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/