MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b277ac8ece6cb1a417fbad35fac655fc28036b7529bfbaa34bc36b293388a67c. 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: 11

Intelligence 11 IOCs YARA 4 File information Comments

SHA256 hash:	b277ac8ece6cb1a417fbad35fac655fc28036b7529bfbaa34bc36b293388a67c
SHA3-384 hash:	a659023d919a452a8e7e9cb10c7453f4efaa233dc606b746847325541653f0031208bb3b2ea42689a384a13eabd35ed1
SHA1 hash:	48c864d22edcabc30fe5c6c2bc06dd9f4ab6e2e9
MD5 hash:	49ee9a4e871b2cbebb6a0f8690d3c656
humanhash:	friend-triple-robert-papa
File name:	nz.x86_64
Download:	download sample
Signature	Mirai Create hunting rule
File size:	42'820 bytes
First seen:	2026-07-31 00:38:17 UTC
Last seen:	2026-08-01 04:47:13 UTC
File type:	elf
MIME type:	application/x-executable
ssdeep	768:GcA1khiEVA0wZmSuoVgswtYOvROxi4QuoY56Ti6ev4PKYx0Qy:LOEVgoLf+i4Qc6TrDTy
TLSH	T12713F297917BE932C5FA2CBA870FC2C1DF321DEBD969AE1F04995BAC585B240E0107C0
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) :	42'820 bytes
File size (de-compressed) :	88'928 bytes
Format:	linux/amd64
Unpacked file:	60bc107df8681a7088dbba0e7198044cd2c4bc8a97ab80ed4e17389ce8cc3d75

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Details

Link:

https://research.acce.ciphertechsolutions.com/results/92a2a9b6-2380-4025-b75a-047173e27456/

Detection(s):

SecuriteInfo.com.Linux.Mirai-19.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Sets a written file as executable

Sends data to a server

Receives data from a server

Runs as daemon

Kills processes

Launching a process

Connection attempt

Substitutes an application name

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

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

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

bashlite mirai packed upx

Link:

https://www.filescan.io/uploads/6a6bee816e2ee5040928dea7/reports/82f06212-24b8-4409-a061-8bfce82055a6/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/b277ac8ece6cb1a417fbad35fac655fc28036b7529bfbaa34bc36b293388a67c

Behaviour

no suspicious findings

Botnet C2s

TCP botnet C2(s):

not identified

UDP botnet C2(s):

not identified

Verdict:

Malicious

File Type:

elf.64.le

First seen:

2026-07-30T22:08:00Z UTC

Last seen:

2026-07-31T05:29:00Z UTC

Hits:

~10

Link:

https://opentip.kaspersky.com/b277ac8ece6cb1a417fbad35fac655fc28036b7529bfbaa34bc36b293388a67c/results?tab=lookup

Status:

terminated

Link:

https://sandbox.kunai.rocks/analysis/ffcf3806-df6e-4bc1-9aca-2ad6df580027

Behavior Graph:

Download SVG

Malware family:

Mirai

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/42331401-c438-4d2d-b18d-5caf179b8882

Score:

100%

Verdict:

Malware

File Type:

ELF

Link:

https://malprob.io/report/b277ac8ece6cb1a417fbad35fac655fc28036b7529bfbaa34bc36b293388a67c

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/b277ac8ece6cb1a417fbad35fac655fc28036b7529bfbaa34bc36b293388a67c/

Threat name:

Linux.Backdoor.Mirai

Status:

Malicious

First seen:

2026-07-31 00:39:40 UTC

File Type:

ELF64 Little (Exe)

AV detection:

12 of 24 (50.00%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=wj32zdwonsy2if73vu27vrsv7quag23vfg73vi2lynvssm4iuz6a._file

Result

Malware family:

mirai

Score:

10/10

Tags:

family:mirai botnet credential_access discovery linux persistence upx

Link:

https://tria.ge/reports/260731-azamcattez/

Behaviour

Reads runtime system information

Changes its process name

Reads system network configuration

Reads process memory

Enumerates active TCP sockets

Enumerates running processes

Modifies init.d

Modifies rc script

Family: Mirai

Malware Config

C2 Extraction:

s3o65awrf56.net

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

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:	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

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/