MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 87f8bfb586997f7e3c22b30326424f27ba43a78dcb4a3344918455fe7e2b07aa. 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: 12

Intelligence 12 IOCs YARA 4 File information Comments

SHA256 hash:	87f8bfb586997f7e3c22b30326424f27ba43a78dcb4a3344918455fe7e2b07aa
SHA3-384 hash:	9bdfb81176b228b08aaf98c1a934a45d907af9610c53a5ed2f5fb80d724d9b9c4fe32fb76a85ec41a0a581645b192e2f
SHA1 hash:	62549cc1e8c9002db454b8cd65dca661d7f3031a
MD5 hash:	e412d047e2cff17d19d2ce4160681ebe
humanhash:	johnny-ohio-charlie-fish
File name:	renji.x86
Download:	download sample
Signature	Mirai Create hunting rule
File size:	39'320 bytes
First seen:	2025-09-15 05:50:54 UTC
Last seen:	Never
File type:	elf
MIME type:	application/x-executable
ssdeep	768:PideCEfv0XfJaDvF9Dc5Y7kGSPO4Lx4QexNd7p/kyDgyoqSukPRCnbcuyD7UHQRI:P4dEKaDjL4LPWQexv9sycqSuMCnouy8/
TLSH	T1FF030111C4FE8F54C47E923E4BEFA68E184CE90A1171BAF7E6D03149AD559067C2CB72
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

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Detection(s):

Unix.Dropper.Mirai-7135858-0

Result

Verdict:

Malware

Maliciousness:

Behaviour

Sends data to a server

Changes access rights for a file

Removes directories

Deleting a recently created file

Connection attempt

DNS request

Changes access rights for a written file

Runs as daemon

Substitutes an application name

Verdict:

Unknown

Threat level:

0/10

Confidence:

100%

Tags:

masquerade packed threat upx

Link:

https://www.filescan.io/uploads/68c7a9d7b85efbb16e8eee01/reports/ad1bd4e5-8fa8-4f8b-b2cc-7c28db44008c/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?

true

Remote TCP ports scanned:

not identified

Full report:

https://elfdigest.com/brief/87f8bfb586997f7e3c22b30326424f27ba43a78dcb4a3344918455fe7e2b07aa

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:

2025-09-15T01:08:00Z UTC

Last seen:

2025-09-15T01:08:00Z UTC

Hits:

~100

Detections:

HEUR:Backdoor.Linux.Mirai.b HEUR:Backdoor.Linux.Gafgyt.bl HEUR:Backdoor.Linux.Gafgyt.bj

Link:

https://opentip.kaspersky.com/87f8bfb586997f7e3c22b30326424f27ba43a78dcb4a3344918455fe7e2b07aa/results?tab=lookup

Status:

Failed

Link:

https://sandbox.kunai.rocks/analysis/c8388c87-7776-4e60-939d-ac7cc4d0b10c

Malware family:

Mirai

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/dc4ad325-4b01-4f85-85df-2e9d002b736e

Result

Threat name:

n/a

Detection:

malicious

Classification:

evad

Score:

68 / 100

Link:

https://www.joesandbox.com/analysis/1777501

Signature

Deletes system log files

Malicious sample detected (through community Yara rule)

Manipulation of devices in /dev

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/87f8bfb586997f7e3c22b30326424f27ba43a78dcb4a3344918455fe7e2b07aa

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/87f8bfb586997f7e3c22b30326424f27ba43a78dcb4a3344918455fe7e2b07aa/

Verdict:

Malicious

Threat:

Backdoor.Linux.Mirai

Link:

https://tip.neiki.dev/file/87f8bfb586997f7e3c22b30326424f27ba43a78dcb4a3344918455fe7e2b07aa

Threat name:

Linux.Backdoor.Mirai

Status:

Malicious

First seen:

2025-09-15 03:18:47 UTC

File Type:

ELF32 Little (Exe)

AV detection:

23 of 38 (60.53%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=q74l7nmgtf7x4pbcwmbsmqspe65ehj4nznfdgrerqrk747rla6va._file

Result

Malware family:

n/a

Score:

7/10

Tags:

defense_evasion discovery linux upx

Link:

https://tria.ge/reports/250915-glathstmy6/

Behaviour

Reads runtime system information

Changes its process name

Deletes log files

Enumerates running processes

Deletes Audit logs

Deletes journal logs

Deletes system logs

Verdict:

Malicious

Tags:

Unix.Dropper.Mirai-7135858-0

YARA:

n/a

Link:

https://app.threat.zone/submission/e13b79ed-21bc-46dc-91f4-80198db3aebb

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/87f8bfb586997f7e3c22b30326424f27ba43a78dcb4a3344918455fe7e2b07aa

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_AllMal_Detector Create hunting rule
Author:	DiegoAnalytics
Description:	CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication

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

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