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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4cfc6b0aa7599aabbdd960417800d02b7f8cb6289ce28b1aaf34a988232d75e1. 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 16 File information Comments

SHA256 hash: 4cfc6b0aa7599aabbdd960417800d02b7f8cb6289ce28b1aaf34a988232d75e1
SHA3-384 hash: 60ded6e4879f30b28a13ca7abfeca778a23fc55a49909c8e8d3b203219a2cff82874540b2ad9e40f8111f584805fb18e
SHA1 hash: 1e280c0318af4d31d750ebfcefaa3964cfb777bc
MD5 hash: a4fa4f65e8243ccc33343037e5e4599d
humanhash: california-single-mango-cardinal
File name:ciubuc_m68k
Download: download sample
Signature Mirai
File size:2'322'396 bytes
First seen:2026-04-22 16:07:41 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 49152:qjN24aVXK3PqtE38WXH0xH9qHvZbhrBk9:qjN2FPi84zHvbBk9
TLSH T1B1B57C47B708B9BEF246733784574A0E24047F12C0815F33A2B5F5AD5E7A1A91F3A6CA
Magika elf
Reporter BlinkzSec
Tags:mirai

Intelligence


File Origin
# of uploads :
1
# of downloads :
45
Origin country :
AE AE
Vendor Threat Intelligence
Malware configuration found for:
Mirai
Details
Mirai
an XOR decryption key and at least a c2 socket address
Verdict:
Malicious
File Type:
elf.32.be
First seen:
2026-04-19T16:11:00Z UTC
Last seen:
2026-04-22T14:33:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.h HEUR:Backdoor.Linux.Mirai.cw HEUR:Backdoor.Linux.Mirai.b
Status:
terminated
Behavior Graph:
%3 guuid=56554ed5-1b00-0000-10aa-00369e100000 pid=4254 /usr/bin/sudo guuid=87c671d8-1b00-0000-10aa-0036a6100000 pid=4262 /tmp/sample.bin guuid=56554ed5-1b00-0000-10aa-00369e100000 pid=4254->guuid=87c671d8-1b00-0000-10aa-0036a6100000 pid=4262 execve
Threat name:
Linux.Backdoor.Mirai
Status:
Malicious
First seen:
2026-04-22 16:04:04 UTC
File Type:
ELF32 Big (Exe)
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:mirai botnet linux
Please note that we are no longer able to provide a coverage score for Virus Total.

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:BLOWFISH_Constants
Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:botnet_Yakuza
Author:NDA0E
Description:Yakuza botnet
Rule name:DetectEncryptedVariants
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:ELF_Toriilike_persist
Author:4r4
Description:Detects Torii IoT Botnet (stealthier Mirai alternative)
Reference:Identified via researched data
Rule name:enterpriseapps2
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:Linux_Trojan_Gafgyt_28a2fe0c
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_ea92cca8
Author:Elastic Security
Rule name:MD5_Constants
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:RANSOMWARE
Author:ToroGuitar
Rule name:RIPEMD160_Constants
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:setsockopt
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
Rule name:SHA1_Constants
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:TH_Generic_MassHunt_Linux_Malware_2026_CYFARE
Author:CYFARE
Description:Generic Linux malware mass-hunt rule - 2026
Reference:https://cyfare.net/
Rule name:unixredflags3
Author:Tim Brown @timb_machine
Description:Hunts for UNIX red flags
Rule name:WHIRLPOOL_Constants
Author:phoul (@phoul)
Description:Look for WhirlPool constants

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Mirai

elf 4cfc6b0aa7599aabbdd960417800d02b7f8cb6289ce28b1aaf34a988232d75e1

(this sample)

  
Delivery method
Distributed via web download

Comments