MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 12a3bf5f757df2beb313cc10dca6dde6f2d8bee6f78ac7fed1ae42288e478455. 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 5 File information Comments

SHA256 hash:	12a3bf5f757df2beb313cc10dca6dde6f2d8bee6f78ac7fed1ae42288e478455
SHA3-384 hash:	f05a3ddc3a2c4cbf5a0387b09c9363d5031b578c2a685f9a092068c1299cc60a5b5bf9119234f341f64fef993b9e6528
SHA1 hash:	cb2c309c991a000c534ad458e3d7340d9eeedbb8
MD5 hash:	d3d00750327c99a9ad392c89bca8ff34
humanhash:	beryllium-eleven-early-august
File name:	5c043447f64e66a8d14b14a21dd535463c4fa33880e977ee0b164b0739d2cb3f.elf
Download:	download sample
Signature	Mirai Create hunting rule
File size:	190'092 bytes
First seen:	2026-08-19 18:51:44 UTC
Last seen:	Never
File type:	elf
MIME type:	application/x-sharedlib
ssdeep	3072:DkRjw81A8qP/GTtSk2IhHV3B/g/KMTsF30becYEEU1+srR9dbNhbJrI14J+aUuyD:DaxXDhHVRomFkScYEEU1+srRHbn1I1Iu
TLSH	T121043A95F890DE56C6D0267AFA7D518C331317B8C3DAB106CE109E35B7EB81A0E3E946
Magika	elf
Reporter	abuse_ch
Tags:	elf mirai upx-dec

abuse_ch

UPX decompressed file, sourced from SHA256 5c043447f64e66a8d14b14a21dd535463c4fa33880e977ee0b164b0739d2cb3f

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) :	83'848 bytes
File size (de-compressed) :	190'092 bytes
Format:	linux/arm
Packed file:	5c043447f64e66a8d14b14a21dd535463c4fa33880e977ee0b164b0739d2cb3f

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

No detections

Detection(s):

SecuriteInfo.com.Linux.Mirai.10742.10300.12331.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Sets a written file as executable

Creating a file

Runs as daemon

Changes access rights for a written file

Creates or modifies symbolic links

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

Opens a port

Launching a process

Connection attempt

Creates or modifies files in /cron to set up autorun

Substitutes an application name

Writes files to system directory

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

Creates or modifies files to set up autorun

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

Deleting of the original file

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

gcc mirai rust

Link:

https://www.filescan.io/uploads/6a85fb60f60d2a71176172d6/reports/739dfa57-1a72-4656-aaa3-51887f14c86b/overview

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/12a3bf5f757df2beb313cc10dca6dde6f2d8bee6f78ac7fed1ae42288e478455

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/8b4dabd3-1822-4d75-bd6d-54cbcf463b58

Behavior Graph:

Download SVG

Malware family:

Mirai

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/9f845b1d-c579-4893-acd8-8199cae9b007

Score:

100%

Verdict:

Malware

File Type:

ELF

Link:

https://malprob.io/report/12a3bf5f757df2beb313cc10dca6dde6f2d8bee6f78ac7fed1ae42288e478455

Detection:

mirai

Link:

https://mwdb.cert.pl/sample/12a3bf5f757df2beb313cc10dca6dde6f2d8bee6f78ac7fed1ae42288e478455/

Threat name:

Linux.Worm.Mirai

Status:

Malicious

First seen:

2026-08-19 18:52:33 UTC

File Type:

ELF32 Little (SO)

AV detection:

11 of 23 (47.83%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=ckr36x3vpxzl5mytzqinzjw543znrpxg66fmp7wrvzbcrdshqrkq._file

Result

Malware family:

n/a

Score:

7/10

Tags:

defense_evasion execution persistence privilege_escalation

Link:

https://tria.ge/reports/260819-xh6psatwcs/

Behaviour

Changes its process name

Modifies Bash startup script

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/12a3bf5f757df2beb313cc10dca6dde6f2d8bee6f78ac7fed1ae42288e478455

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:	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:	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