MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cfe2781d3f48ed81d10f2af8817042f3e91c8613d3cf4a4aa563eb090dbb9d49. 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 3 File information Comments

SHA256 hash:	cfe2781d3f48ed81d10f2af8817042f3e91c8613d3cf4a4aa563eb090dbb9d49
SHA3-384 hash:	a92df50b1be6b10f78139df12223e7f7c1df0089346acbfc4d252b0eeb34950d019b317a7433c0a3317718a589bcb73d
SHA1 hash:	dac96a22a9a707d9a755c6ca01dafde5c56045ee
MD5 hash:	82c979aca063610923a9299ede283c79
humanhash:	georgia-four-london-fish
File name:	cfe2781d3f48ed81d10f2af8817042f3e91c8613d3cf4a4aa563eb090dbb9d49.elf
Download:	download sample
Signature	Mirai Create hunting rule
File size:	135'108 bytes
First seen:	2026-08-23 07:46:41 UTC
Last seen:	Never
File type:	elf
MIME type:	application/x-sharedlib
ssdeep	3072:erH6NYI1PB75lttW1tI9E/vnL9zdGSky+rKj1blbJIR3Vckn:8xcZFAI9yvL9zxjFxLMGu
TLSH	T12AD3121CCF3F021BED87A5B24C588952FA5D7B040B13CE2E767D6496702BA79013EDA2
Magika	elf
Reporter	whack_sh
Tags:	elf exe UPX whack.sh

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) :	135'108 bytes
File size (de-compressed) :	278'884 bytes
Format:	linux/mips
Unpacked file:	6a1fd47a73644e1b2132188f5babfef13d20a6f55a07be2262888ab4915079c6

Intelligence

File Origin

# of uploads :

# of downloads :

124

Origin country :

Vendor Threat Intelligence

Details

Link:

https://research.acce.ciphertechsolutions.com/results/76172629-47d2-4890-8126-3ca83c8e1b12/

Result

Verdict:

Malware

Maliciousness:

Behaviour

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

Opens a port

Creating a file

Launching a process

Connection attempt

Sets a written file as executable

Runs as daemon

Creates or modifies symbolic links

Receives data from a server

Changes access rights for a written file

Sends data to a server

Creates or modifies files in /cron to set up autorun

Substitutes an application name

Writes files to system directory

Deleting of the original file

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

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

Creates or modifies files to set up autorun

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

mirai packed tsunami upx

Link:

https://www.filescan.io/uploads/6a8aa58132ed80301de1b97b/reports/f314490d-ac6a-488e-a4dd-aed68cb48da7/overview

Verdict:

Malicious

Uses P2P?:

false

Uses anti-vm?:

false

Architecture:

mips

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/cfe2781d3f48ed81d10f2af8817042f3e91c8613d3cf4a4aa563eb090dbb9d49

Behaviour

Persistence

Process Renaming

Botnet C2s

TCP botnet C2(s):

not identified

UDP botnet C2(s):

not identified

Verdict:

Malicious

File Type:

elf.32.be

First seen:

2026-08-23T02:42:00Z UTC

Last seen:

2026-08-24T19:19:00Z UTC

Hits:

~10

Link:

https://opentip.kaspersky.com/cfe2781d3f48ed81d10f2af8817042f3e91c8613d3cf4a4aa563eb090dbb9d49/results?tab=lookup

Status:

terminated

Link:

https://sandbox.kunai.rocks/analysis/8cf40e95-954b-4600-a699-555fed422452

Behavior Graph:

Download SVG

Verdict:

Unknown

Link:

https://analyze.intezer.com/analyses/c9c7e6e1-2c96-4a35-8342-341336bff2d2

Score:

100%

Verdict:

Malware

File Type:

ELF

Link:

https://malprob.io/report/cfe2781d3f48ed81d10f2af8817042f3e91c8613d3cf4a4aa563eb090dbb9d49

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/cfe2781d3f48ed81d10f2af8817042f3e91c8613d3cf4a4aa563eb090dbb9d49/

Threat name:

Linux.Trojan.Multiverze

Status:

Malicious

First seen:

2026-08-23 07:39:12 UTC

File Type:

ELF32 Big (SO)

AV detection:

11 of 24 (45.83%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=z7rhqhj7jdwyduipfl4ic4cc6purzbqt2phuusvfmpvqsdn3tveq._file

Result

Malware family:

n/a

Score:

7/10

Tags:

defense_evasion discovery execution persistence privilege_escalation upx

Link:

https://tria.ge/reports/260823-jmmktavbka/

Behaviour

Reads runtime system information

Changes its process name

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

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

Threat name:

Legit

Score:

0.00

Link:

https://yomi.yoroi.company/submissions/cfe2781d3f48ed81d10f2af8817042f3e91c8613d3cf4a4aa563eb090dbb9d49

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:	elf_arm_mips_ko_so Create hunting rule

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