MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8131e87819d8f29dc005eaad69b6c28a02a732b9bd6d5729cb44e03131bf3ef6. 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 4 File information Comments

SHA256 hash:	8131e87819d8f29dc005eaad69b6c28a02a732b9bd6d5729cb44e03131bf3ef6
SHA3-384 hash:	1ad8fc54c7da05ec9024a59a05d4d369fcc235368f75ae226082150b0f5b996181e0ae3b28b003bfb33964b231f2436b
SHA1 hash:	cfef6c20f222b3b72dbf43eacdd99a097c38717f
MD5 hash:	9cca6ea2975cfd96ca6e4e1a2940aff5
humanhash:	missouri-beryllium-magnesium-blue
File name:	putita.x86_64
Download:	download sample
Signature	Mirai Create hunting rule
File size:	124'808 bytes
First seen:	2026-08-16 19:48:29 UTC
Last seen:	Never
File type:	elf
MIME type:	application/x-sharedlib
ssdeep	3072:zVroYE04n3quGACAQAxNYVe4ExnEdG4tP:zVuauGANYU40EdrP
TLSH	T10FC34B0675A148FCC156C034C77F9937EA31785D53343ABE6B84BA71AE22E365F0AB42
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-dec

abuse_ch

UPX decompressed file, sourced from SHA256 c581115dadc5417494c41bdeb6fc65ebf33b62e21a6f6f101d03fd5f54882c97

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) :	60'676 bytes
File size (de-compressed) :	124'808 bytes
Format:	linux/amd64
Packed file:	c581115dadc5417494c41bdeb6fc65ebf33b62e21a6f6f101d03fd5f54882c97

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

No detections

Detection(s):

SecuriteInfo.com.ELF.Mirai-ALC.38167789.UNOFFICIAL

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

Changes access rights for a written file

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:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

expand gcc lolbin mirai

Link:

https://www.filescan.io/uploads/6a82144051ad642e4bc52606/reports/74ef1a6f-6c8b-428b-846b-d7534db02599/overview

Verdict:

Malicious

File Type:

elf.64.le

First seen:

2026-08-16T17:24:00Z UTC

Last seen:

2026-08-16T17:55:00Z UTC

Hits:

~10

Link:

https://opentip.kaspersky.com/8131e87819d8f29dc005eaad69b6c28a02a732b9bd6d5729cb44e03131bf3ef6/results?tab=lookup

Status:

terminated

Link:

https://sandbox.kunai.rocks/analysis/aa696910-278e-4e43-94c5-3adfa2e86465

Behavior Graph:

Download SVG

Verdict:

Suspicious

Link:

https://analyze.intezer.com/analyses/a9a1b9bc-f93b-4963-915e-a6e86ed3b3de

Score:

98%

Verdict:

Malware

File Type:

ELF

Link:

https://malprob.io/report/8131e87819d8f29dc005eaad69b6c28a02a732b9bd6d5729cb44e03131bf3ef6

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/8131e87819d8f29dc005eaad69b6c28a02a732b9bd6d5729cb44e03131bf3ef6/

Threat name:

Linux.Worm.Mirai

Status:

Malicious

First seen:

2026-08-16 19:49:34 UTC

File Type:

ELF64 Little (SO)

AV detection:

13 of 24 (54.17%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=qey6q6az3dzj3qaf5kwwtnwcribkomvzxvwvokolitqdcmn7h33a._file

Result

Malware family:

n/a

Score:

7/10

Tags:

defense_evasion execution linux persistence privilege_escalation

Link:

https://tria.ge/reports/260816-yjtbhswcrb/

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/8131e87819d8f29dc005eaad69b6c28a02a732b9bd6d5729cb44e03131bf3ef6

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_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