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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 21cda1ff1641725f7f321b4d6261ebea1d10bbd2878bdb60e8a853ba749ef63a. 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: 6


Intelligence 6 IOCs YARA 15 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 21cda1ff1641725f7f321b4d6261ebea1d10bbd2878bdb60e8a853ba749ef63a
SHA3-384 hash: 512a1b13e34da3be0fb06d3b73f12ba4c49944f80075e6bcd32763bff10a2639f8ab28c45f44d3f123cb8c3db4373fb8
SHA1 hash: 5feb6eec75b3b3c32709815e020d6d1e04c54131
MD5 hash: b7869f3a92d025114a5259dd165e38b6
humanhash: six-bluebird-stairway-mobile
File name:arc
Download: download sample
Signature Mirai
Create hunting rule
File size:542'608 bytes
First seen:2026-09-26 16:47:26 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 12288:C08mtrT66mBA1olHKTmP4aienHfUXlLT:CCtr+w1olHKyQavnHfUXlf
TLSH T1A1B4AF43AB7A1490C8A6C0B875E207FC895742875BF7E5DBDF4AA9D2BD25481332C3C6
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

Intelligence

File Origin
# of uploads :
1
# of downloads :
79
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
Sanesecurity.Malware.29052.TSource.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
gcc
Link:
https://www.filescan.io/uploads/6ab7f74fb5de7a67fd9e0b30/reports/b1f66c09-dff3-4db5-ad3d-1248186aa41c/overview
Verdict:
Unknown
File Type:
elf.32.le
First seen:
2026-09-27T03:53:00Z UTC
Last seen:
2026-09-27T18:52:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/21cda1ff1641725f7f321b4d6261ebea1d10bbd2878bdb60e8a853ba749ef63a/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/60fa9caa-19b0-4093-a107-d1d13bf88e90
Behavior Graph:
Download SVG
%3 guuid=affbc2d1-1f00-0000-573d-dfeeed0a0000 pid=2797 /usr/bin/sudo guuid=3fb04bd4-1f00-0000-573d-dfeeee0a0000 pid=2798 /tmp/sample.bin guuid=affbc2d1-1f00-0000-573d-dfeeed0a0000 pid=2797->guuid=3fb04bd4-1f00-0000-573d-dfeeee0a0000 pid=2798 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/67f421b4-b711-47e3-b1fb-84019715a9db
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/21cda1ff1641725f7f321b4d6261ebea1d10bbd2878bdb60e8a853ba749ef63a
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/21cda1ff1641725f7f321b4d6261ebea1d10bbd2878bdb60e8a853ba749ef63a/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-09-26 16:48:24 UTC
File Type:
ELF32 Little (Exe)
AV detection:
12 of 23 (52.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ehg2d7ywifzf67zsdngweypl5iorbo6sq6f5wyhivbj3u5e66y5a._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
linux
Link:
https://tria.ge/reports/260926-va7k1axflh/
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/21cda1ff1641725f7f321b4d6261ebea1d10bbd2878bdb60e8a853ba749ef63a

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
Create hunting rule
Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:ELF_Toriilike_persist
Create hunting rule
Author:4r4
Description:Detects Torii IoT Botnet (stealthier Mirai alternative)
Reference:Identified via researched data
Rule name:enterpriseapps2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:F01_s1ckrule
Create hunting rule
Author:s1ckb017
Rule name:golang
Create hunting rule
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:MIRAI_TELNETCURL_payload
Create hunting rule
Author:AfterPacket
Description:Mirai-lineage ELF payload carrying the leaked-source decoy domain
Reference:https://github.com/Afterpacket/drosera-threat-intel
Rule name:NSVPS_Hydra_SSH_Bruteforce
Create hunting rule
Author:sanad (NSVPS-SOC)
Description:Hydra SSH brute-force campaign credentials pattern from NSVPS honeypot
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:telebot_framework
Create hunting rule
Author:vietdx.mb
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/
Rule name:unixredflags3
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for UNIX red flags

File information

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

Web download

Mirai

elf 21cda1ff1641725f7f321b4d6261ebea1d10bbd2878bdb60e8a853ba749ef63a

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3922291/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3923511/

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