MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 efa91ffa352eb7e907c4acd52b0837142d9a19ea3720ba7553e25a8247b2d4f5. 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 8 File information Comments

SHA256 hash:	efa91ffa352eb7e907c4acd52b0837142d9a19ea3720ba7553e25a8247b2d4f5
SHA3-384 hash:	8a6efebbd04e9ccafa61c117846720daad2816e3a3ce56f4245c53bbdae9f38cb83cfe756a786f34d491bc39d72ca77d
SHA1 hash:	3451e5ee916bcda274a20e65cf3cb4f154608259
MD5 hash:	ea2da07bcb61ae8ee9c5f0301b457732
humanhash:	undress-robert-nineteen-rugby
File name:	sora.x86
Download:	download sample
Signature	Mirai Create hunting rule
File size:	49'852 bytes
First seen:	2026-10-30 14:22:21 UTC
Last seen:	Never
File type:	elf
MIME type:	application/x-executable
ssdeep	1536:Ovmt6GStZRjrMcPzOubNurfoPudIYfQ5Igomv4ay:O5GS1HMcPCuhsoPuI7iavjy
TLSH	T1A6233BC0A683F9F1EC11457C307BA7725E77F43AA03AEDDBD7D9A423A841602960729D
telfhash	t1a31186b72e690decb3e16858c35e22d2195ad23f597133e54222d42532a6fc2947ec3e
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 8dbac8d9f9d295b24f80753ff9ac27ea47f1c876a275c7d97ed064fc95cff427

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) :	25'744 bytes
File size (de-compressed) :	49'852 bytes
Format:	linux/i386
Packed file:	8dbac8d9f9d295b24f80753ff9ac27ea47f1c876a275c7d97ed064fc95cff427

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Malware configuration found for:

Mirai

Details

Link:

https://research.acce.ciphertechsolutions.com/results/8ffe569a-b7f9-4f4a-a2ee-4b43a1b152ba/

Gathering data

Verdict:

Malicious

File Type:

elf.32.le

First seen:

2026-10-30T12:49:00Z UTC

Last seen:

2026-11-01T02:37:00Z UTC

Hits:

~10

Link:

https://opentip.kaspersky.com/efa91ffa352eb7e907c4acd52b0837142d9a19ea3720ba7553e25a8247b2d4f5/results?tab=lookup

Status:

terminated

Link:

https://sandbox.kunai.rocks/analysis/909f8c41-8186-472d-803b-57300cda1bd1

Behavior Graph:

Download SVG

Gathering data

Score:

100%

Verdict:

Malware

File Type:

ELF

Link:

https://malprob.io/report/efa91ffa352eb7e907c4acd52b0837142d9a19ea3720ba7553e25a8247b2d4f5

Detection:

mirai

Link:

https://mwdb.cert.pl/sample/efa91ffa352eb7e907c4acd52b0837142d9a19ea3720ba7553e25a8247b2d4f5/

Threat name:

Linux.Worm.Mirai

Status:

Malicious

First seen:

2026-10-30 14:22:40 UTC

File Type:

ELF32 Little (Exe)

AV detection:

20 of 23 (86.96%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=56ur76rvf236sb6evtkswcbxcqwzugpkg4qlu5kt4jnier5s2t2q._file

Result

Malware family:

mirai

Score:

10/10

Tags:

family:mirai botnet:sora botnet defense_evasion discovery linux

Link:

https://tria.ge/reports/261030-rp79ascy4y/

Behaviour

Reads runtime system information

Changes its process name

Reads system network configuration

Enumerates active TCP sockets

Enumerates running processes

Modifies Watchdog functionality

Contacts a large (90527) amount of remote hosts

Creates a large amount of network flows

Malware Config

C2 Extraction:

217.60.242.6

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/efa91ffa352eb7e907c4acd52b0837142d9a19ea3720ba7553e25a8247b2d4f5

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:	exploit_any_poppopret Create hunting rule
Author:	Jeff White [karttoon@gmail.com] @noottrak
Description:	Identify POP -> POP -> RET opcodes for quick ROP Gadget creation in target binaries.

Rule name:	linux_generic_ipv6_catcher Create hunting rule
Author:	@_lubiedo
Description:	ELF samples using IPv6 addresses

Rule name:	Linux_Trojan_Mirai_88de437f Create hunting rule
Author:	Elastic Security

Rule name:	Linux_Trojan_Mirai_8aa7b5d3 Create hunting rule
Author:	Elastic Security

Rule name:	Linux_Trojan_Mirai_ae9d0fa6 Create hunting rule
Author:	Elastic Security

Rule name:	Linux_Trojan_Mirai_b14f4c5d Create hunting rule
Author:	Elastic Security

Rule name:	Linux_Trojan_Mirai_cc93863b Create hunting rule
Author:	Elastic Security

Rule name:	TH_Generic_MassHunt_Linux_Malware_2026_CYFARE Create hunting rule
Author:	CYFARE
Description:	Generic Linux malware mass-hunt rule - 2026
Reference:	https://cyfare.net/