MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 91a227128d954b490d2c0efae44f79d15eaed016947eed179e97ad49f5467908. 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: 8

Intelligence 8 IOCs YARA 5 File information Comments

SHA256 hash:	91a227128d954b490d2c0efae44f79d15eaed016947eed179e97ad49f5467908
SHA3-384 hash:	f233dc81177bd10860390f99e81a4be9a31ae12142942177f934d1281cd6dba8e976d1e824c9dcc870659b22ab5509dd
SHA1 hash:	58e81f63464a31fff29a8e16c991a857c59a80cd
MD5 hash:	1c9799071ed181099ef51a62621f0065
humanhash:	burger-summer-chicken-dakota
File name:	putita.arm
Download:	download sample
Signature	Mirai Create hunting rule
File size:	124'368 bytes
First seen:	2026-08-12 19:45:55 UTC
Last seen:	Never
File type:	elf
MIME type:	application/x-sharedlib
ssdeep	3072:k8UWljtkimUjqI61hcYEEUjTisJOOvL1IlPUvz5NIFxNZZudf1Dl:kLwjrFShcYEEUjTisY+LeBUvINwd95
TLSH	T163C319A9F880DE52C6D52676FB5E418C33231778C3DA7105CE109E35FBEBD5A0E2A942
Magika	elf
Reporter	abuse_ch
Tags:	elf mirai upx-dec

abuse_ch

UPX decompressed file, sourced from SHA256 a0affe2acd95d7acb4c173c9050328e8e1d6f4fc14c73594fcf97f58001167c1

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) :	56'412 bytes
File size (de-compressed) :	124'368 bytes
Format:	linux/arm
Packed file:	a0affe2acd95d7acb4c173c9050328e8e1d6f4fc14c73594fcf97f58001167c1

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

No detections

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:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

gcc masquerade mirai rust

Link:

https://www.filescan.io/uploads/6a7ccd98a372ca5ec1693039/reports/d70bc675-aa6b-40d3-8c04-1b496f5ba6f9/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/91a227128d954b490d2c0efae44f79d15eaed016947eed179e97ad49f5467908

Behaviour

Persistence

Process Renaming

Botnet C2s

TCP botnet C2(s):

not identified

UDP botnet C2(s):

not identified

Verdict:

Malicious

File Type:

elf.32.le

First seen:

2026-08-12T20:48:00Z UTC

Last seen:

2026-08-14T01:05:00Z UTC

Hits:

~10

Link:

https://opentip.kaspersky.com/91a227128d954b490d2c0efae44f79d15eaed016947eed179e97ad49f5467908/results?tab=lookup

Status:

terminated

Link:

https://sandbox.kunai.rocks/analysis/9b16f5a1-bc97-4eb1-b7a5-09be069fa997

Behavior Graph:

Download SVG

Gathering data

Score:

100%

Verdict:

Malware

File Type:

ELF

Link:

https://malprob.io/report/91a227128d954b490d2c0efae44f79d15eaed016947eed179e97ad49f5467908

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/91a227128d954b490d2c0efae44f79d15eaed016947eed179e97ad49f5467908/

Threat name:

Linux.Worm.Mirai

Status:

Malicious

First seen:

2026-08-12 20:13:18 UTC

File Type:

ELF32 Little (SO)

AV detection:

12 of 23 (52.17%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=sgrcoeunsvfusdjmb35oit3z2fpk5uawsr7o2f46s6wut5kgpeea._file

Result

Malware family:

n/a

Score:

7/10

Tags:

defense_evasion execution persistence privilege_escalation

Link:

https://tria.ge/reports/260812-yg8nes11b1/

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/91a227128d954b490d2c0efae44f79d15eaed016947eed179e97ad49f5467908

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