MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cffbe36aef31caabbc667494f7c66c9cbb47d7cf3388320f3c2c2db1a643f296. 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:	cffbe36aef31caabbc667494f7c66c9cbb47d7cf3388320f3c2c2db1a643f296
SHA3-384 hash:	eadc668539be0c3e00a894dfbafb7f5484198c75cb4c54c6827adaf386b7be45d5e0eee688f3b635fe5ad46459453d93
SHA1 hash:	adb5dc4cbd1e213de7884f90a6df9ab9a701c641
MD5 hash:	9aa7d4b280c0862f66c826b494948f38
humanhash:	alanine-xray-illinois-august
File name:	4e180156d2b0d6c13d57b65999cf45393afdaa1f3181e0aafc26686a4795f9e1.elf
Download:	download sample
Signature	Mirai Create hunting rule
File size:	178'012 bytes
First seen:	2026-08-19 02:18:46 UTC
Last seen:	Never
File type:	elf
MIME type:	application/x-sharedlib
ssdeep	3072:vgYASbP9VR1duC2Y70hl0+FOi33N3p2QTG0WTvEq4V1IISg7wVCigIEXjhKOmU+B:vdT1yFOC3N3p2KGMLII17wVCigIUYOmf
TLSH	T1FB041956F880EE26C6D1267AFA9D019C335317B8D3DAB002DD24AF2937DB55E0B3E506
Magika	elf
Reporter	abuse_ch
Tags:	elf mirai upx-dec

abuse_ch

UPX decompressed file, sourced from SHA256 4e180156d2b0d6c13d57b65999cf45393afdaa1f3181e0aafc26686a4795f9e1

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) :	98'000 bytes
File size (de-compressed) :	178'012 bytes
Format:	linux/arm
Packed file:	4e180156d2b0d6c13d57b65999cf45393afdaa1f3181e0aafc26686a4795f9e1

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

No detections

Detection(s):

Unix.Dropper.Mirai-7135897-0

Unix.Dropper.Mirai-7135918-0

Unix.Dropper.Mirai-7135954-0

Unix.Dropper.Mirai-7136028-0

Unix.Trojan.Mirai-8025795-0

Result

Verdict:

Malware

Maliciousness:

Behaviour

DNS request

Creating a file

Sends data to a server

Receives data from a server

Runs as daemon

Manages services

Kills processes

Opens a port

Connection attempt

Changes access rights for a written file

Substitutes an application name

Creates or modifies files in /cron to set up autorun

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

Verdict:

Malicious

Uses P2P?:

false

Uses anti-vm?:

false

Architecture:

arm

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/cffbe36aef31caabbc667494f7c66c9cbb47d7cf3388320f3c2c2db1a643f296

Behaviour

Persistence

Process Renaming

Botnet C2s

TCP botnet C2(s):

not identified

UDP botnet C2(s):

not identified

Status:

terminated

Link:

https://sandbox.kunai.rocks/analysis/875de229-ba51-46b2-a21d-9ffc09607b57

Behavior Graph:

Download SVG

Verdict:

Suspicious

Link:

https://analyze.intezer.com/analyses/1b602b91-dd54-45b0-af7b-8876e017cded

Score:

100%

Verdict:

Malware

File Type:

ELF

Link:

https://malprob.io/report/cffbe36aef31caabbc667494f7c66c9cbb47d7cf3388320f3c2c2db1a643f296

Detection:

mirai

Link:

https://mwdb.cert.pl/sample/cffbe36aef31caabbc667494f7c66c9cbb47d7cf3388320f3c2c2db1a643f296/

Threat name:

Linux.Worm.Mirai

Status:

Malicious

First seen:

2026-08-19 02:22:42 UTC

File Type:

ELF32 Little (SO)

AV detection:

9 of 36 (25.00%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=z756g2xpghfkxpdgoskpprtmts5upv6pgoededz4fqw3djsd6kla._file

Result

Malware family:

n/a

Score:

7/10

Tags:

defense_evasion discovery execution persistence privilege_escalation

Link:

https://tria.ge/reports/260819-cr79racn2y/

Behaviour

Reads runtime system information

Changes its process name

Reads system network configuration

Creates/modifies Cron job

Enumerates active TCP sockets

Enumerates running processes

Modifies rc script

Modifies systemd

Write file to user bin folder

Modifies Watchdog functionality

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/cffbe36aef31caabbc667494f7c66c9cbb47d7cf3388320f3c2c2db1a643f296

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:	deepfield_potassium_mirai_variant Create hunting rule
Author:	Nokia Deepfield ERT
Description:	Detects Potassium Mirai variant (ChaCha20 table, HTTP C2 with token/guid, .woof dropper). Also known as Woof (internal) and Dichter (related variant with Dutch C2 domains, same key material).
Reference:	Internal analysis of sample 6ef4ce02; external: @deobfuscately

Rule name:	elf_arm_mips_ko_so Create hunting rule

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

Rule name:	MIRAI_OHSHIT_payload Create hunting rule
Author:	AfterPacket
Description:	MIRAI_OHSHIT ELF payload -- compiled-in C2 set, all architectures
Reference:	https://github.com/Afterpacket/drosera-threat-intel

Rule name:	NSVPS_Hydra_SSH_Bruteforce Create hunting rule
Author:	sanad (NSVPS-SOC)
Description:	Hydra SSH brute-force campaign credentials pattern from NSVPS honeypot

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

Rule name:	test_rule_vldslv Create hunting rule

Rule name:	unixredflags3 Create hunting rule
Author:	Tim Brown @timb_machine
Description:	Hunts for UNIX red flags

Rule name:	woof_mirai_variant Create hunting rule
Author:	Nokia Deepfield ERT
Description:	Detects Woof Mirai variant (ChaCha20 table, HTTP C2 with token/guid, .woof dropper)
Reference:	Internal analysis of sample 6ef4ce02