MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a51bd7639f0e30a76d7207e9ac14cf746b3e004f27a0347bf324000de97a291d. 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: 11


Intelligence 11 IOCs YARA 9 File information Comments
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SHA256 hash: a51bd7639f0e30a76d7207e9ac14cf746b3e004f27a0347bf324000de97a291d
SHA3-384 hash: e06745306d8a6fb93ed941421473b1a710ca4688617146c7c50595031f23ab2958dd3c138b89dc2a4440e605dd424160
SHA1 hash: 13f47c162a097f64780444652022726c87bf3af5
MD5 hash: fcd7e7d21bc4ea521ea149cbb0dda9fd
humanhash: aspen-west-spring-louisiana
File name:mirai.spc
Download: download sample
Signature Mirai
Create hunting rule
File size:62'484 bytes
First seen:2026-02-17 01:35:32 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:cnol7i1qTSCq9r7Cw7p1oY8dwJONpn+d9E5mp5MiSKuSGO+h9s9F40:cnEiwGCSr7CSpiY8dwJwpn+d9x3EhE
TLSH T139533A22A9792E17C0D5F57B21F38324B2F56B0E24A8CB2D7D720E8EFF1855065472B1
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
47
Origin country :
DE DE
Vendor Threat Intelligence
Malware configuration found for:
Mirai
Details
Mirai
an XOR decryption key and at least a c2 socket address
Link:
https://research.acce.ciphertechsolutions.com/results/6d95a756-058c-4a27-a9e2-8d723ab0f8bd/
Detection(s):
SecuriteInfo.com.Linux.Mirai-63.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.30419.LX.M0Z.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.30435.LC.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-7100807-0
Create hunting rule

Unix.Dropper.Mirai-7135868-0
Create hunting rule

Unix.Dropper.Mirai-7135891-0
Create hunting rule

Unix.Dropper.Mirai-7135892-0
Create hunting rule

Unix.Dropper.Mirai-7135965-0
Create hunting rule

Unix.Dropper.Mirai-7136013-0
Create hunting rule

Unix.Dropper.Mirai-7136034-0
Create hunting rule

Unix.Dropper.Mirai-7136057-0
Create hunting rule

Unix.Dropper.Mirai-7136070-0
Create hunting rule

Unix.Trojan.Mirai-8025795-0
Create hunting rule

Unix.Trojan.Mirai-9858729-0
Create hunting rule

Unix.Trojan.Mirai-10027280-0
Create hunting rule

Unix.Trojan.Mirai-1
Create hunting rule

Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
botnet masquerade mirai mirai obfuscated
Link:
https://www.filescan.io/uploads/6993c6122ffccda0977115d5/reports/663bac81-b2a0-4722-9a1e-9b738b6086f0/overview
Result
Gathering data
Verdict:
Malicious
File Type:
elf.32.be
Detections:
HEUR:Backdoor.Linux.Mirai.fg HEUR:Backdoor.Linux.Mirai.c HEUR:Backdoor.Linux.Mirai.b HEUR:Backdoor.Linux.Gafgyt.x HEUR:Backdoor.Linux.Mirai.r HEUR:Backdoor.Linux.Mirai.n HEUR:Backdoor.Linux.Mirai.h
Link:
https://opentip.kaspersky.com/a51bd7639f0e30a76d7207e9ac14cf746b3e004f27a0347bf324000de97a291d/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/afec074b-ecb2-40c2-95d8-911c27947fac
Behavior Graph:
Download SVG
%3 guuid=6ba1798d-1700-0000-00da-0fac800b0000 pid=2944 /usr/bin/sudo guuid=d91d3990-1700-0000-00da-0fac860b0000 pid=2950 /tmp/sample.bin guuid=6ba1798d-1700-0000-00da-0fac800b0000 pid=2944->guuid=d91d3990-1700-0000-00da-0fac860b0000 pid=2950 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/cbc4101d-3336-42a3-b228-99c5b718e48c
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
84 / 100
Link:
https://www.joesandbox.com/analysis/1870209
Signature
Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample deletes itself
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1870209 Sample: mirai.spc.elf Startdate: 17/02/2026 Architecture: LINUX Score: 84 21 211.135.102.136 ZAQJupiterTelecommunicationsCoLtdJP Japan 2->21 23 186.237.41.16, 23 WESTINTERNETBANDALARGABR Brazil 2->23 25 98 other IPs or domains 2->25 27 Malicious sample detected (through community Yara rule) 2->27 29 Antivirus / Scanner detection for submitted sample 2->29 31 Multi AV Scanner detection for submitted file 2->31 33 Yara detected Mirai 2->33 8 mirai.spc.elf 2->8         started        11 dash rm 2->11         started        13 dash rm 2->13         started        signatures3 process4 signatures5 35 Sample deletes itself 8->35 15 mirai.spc.elf 8->15         started        process6 process7 17 mirai.spc.elf 15->17         started        19 mirai.spc.elf 15->19         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/a51bd7639f0e30a76d7207e9ac14cf746b3e004f27a0347bf324000de97a291d
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a51bd7639f0e30a76d7207e9ac14cf746b3e004f27a0347bf324000de97a291d/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/a51bd7639f0e30a76d7207e9ac14cf746b3e004f27a0347bf324000de97a291d
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-02-17 01:36:26 UTC
File Type:
ELF32 Big (Exe)
AV detection:
26 of 36 (72.22%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uun5oy47byyko3lsa7u2yfgporvt4acpe6qdi67teqaa32l2feoq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:mirai linux
Link:
https://tria.ge/reports/260217-b1dwtscx9h/
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/a51bd7639f0e30a76d7207e9ac14cf746b3e004f27a0347bf324000de97a291d

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:Linux_Mirai_Generic
Create hunting rule
Author:albertzsigovits
Description:Generic Approach to Mirai/Gafgyt samples
Rule name:Linux_Trojan_Mirai_0bce98a2
Create hunting rule
Author:Elastic Security
Rule name:MAL_ELF_LNX_Mirai_Oct10_2
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects ELF malware Mirai related
Reference:Internal Research
Rule name:MAL_ELF_LNX_Mirai_Oct10_2_RID2F3A
Create hunting rule
Author:Florian Roth
Description:Detects ELF malware Mirai related
Reference:Internal Research
Rule name:Mirai_Botnet_Malware
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects Mirai Botnet Malware
Reference:Internal Research
Rule name:Mirai_Botnet_Malware_RID2EF6
Create hunting rule
Author:Florian Roth
Description:Detects Mirai Botnet Malware
Reference:Internal Research
Rule name:SUSP_XORed_Mozilla_Oct19
Create hunting rule
Author:Florian Roth
Description:Detects suspicious single byte XORed keyword 'Mozilla/5.0' - it uses yara's XOR modifier and therefore cannot print the XOR key. You can use the CyberChef recipe linked in the reference field to brute force the used key.
Reference:https://gchq.github.io/CyberChef/#recipe=XOR_Brute_Force()
Rule name:SUSP_XORed_Mozilla_RID2DB4
Create hunting rule
Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
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 a51bd7639f0e30a76d7207e9ac14cf746b3e004f27a0347bf324000de97a291d

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3777030/
  
Delivery method
Distributed via web download

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