MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b4b7fe0c4f1747f75546cbb0b20dc4b7ea2eae0cb935a617b5af239c8462a091. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b4b7fe0c4f1747f75546cbb0b20dc4b7ea2eae0cb935a617b5af239c8462a091
SHA3-384 hash: 0d97af91381aadc1111a4eac703d291a3a48069889a0ff48365aca5d8bd28a566ecfcb391ccfdd26e370b9bcaab2f2f8
SHA1 hash: 4277774afa0802b372dcbd50e972d0460fe9b774
MD5 hash: a297042082828f3f59a6fdfd43566bd7
humanhash: bluebird-one-hawaii-king
File name:zoryn.sh4
Download: download sample
Signature Mirai
Create hunting rule
File size:39'976 bytes
First seen:2026-06-11 23:39:20 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:Nag/QC1hfCi6Yd8rgJkNeyeVqteKeCeMoKNACfoduqpv:Nag/RhfB6Yh+NbY8zDboKaT8qpv
TLSH T1F0035B67C41E9EC8D529427CE0645D3A1B13F01893671EF62E4A8251905BDBCF61E3FB
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 :
58
Origin country :
DE DE
Vendor Threat Intelligence
Malware configuration found for:
Mirai
Details
Link:
https://research.acce.ciphertechsolutions.com/results/e8743605-5c27-48c4-8334-97a81c82a5bc/
Detection(s):
SecuriteInfo.com.Linux.Mirai-61.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-7138377-0
Create hunting rule

Unix.Trojan.Mirai-7674518-0
Create hunting rule

Unix.Trojan.Mirai-9876194-0
Create hunting rule

Unix.Trojan.Generic-9910199-0
Create hunting rule

Unix.Trojan.Mirai-10057021-0
Create hunting rule

Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade obfuscated
Link:
https://www.filescan.io/uploads/6a2b472b1f652d6865798648/reports/f398c220-06b6-4619-a0bb-0ba1151e28ef/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-06-11T12:57:00Z UTC
Last seen:
2026-06-11T13:17:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/b4b7fe0c4f1747f75546cbb0b20dc4b7ea2eae0cb935a617b5af239c8462a091/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/1c7ab929-a532-48b2-823b-1a185e35fb34
Behavior Graph:
Download SVG
%3 guuid=d7071a18-1900-0000-773f-243c9c0d0000 pid=3484 /usr/bin/sudo guuid=4ef1c11a-1900-0000-773f-243ca20d0000 pid=3490 /tmp/sample.bin guuid=d7071a18-1900-0000-773f-243c9c0d0000 pid=3484->guuid=4ef1c11a-1900-0000-773f-243ca20d0000 pid=3490 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/186b7c62-6892-4e43-9e2d-2509c84e3ac4
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b4b7fe0c4f1747f75546cbb0b20dc4b7ea2eae0cb935a617b5af239c8462a091
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b4b7fe0c4f1747f75546cbb0b20dc4b7ea2eae0cb935a617b5af239c8462a091/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/b4b7fe0c4f1747f75546cbb0b20dc4b7ea2eae0cb935a617b5af239c8462a091
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-06-11 23:40:37 UTC
File Type:
ELF32 Little (Exe)
AV detection:
22 of 36 (61.11%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ws374dcpc5d7ovkgzoyledoew7vc5lqmxe22mf5vv4rzzbdcuciq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet linux
Link:
https://tria.ge/reports/260611-3n412afx2k/
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/b4b7fe0c4f1747f75546cbb0b20dc4b7ea2eae0cb935a617b5af239c8462a091

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

File information

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

Web download

Mirai

elf b4b7fe0c4f1747f75546cbb0b20dc4b7ea2eae0cb935a617b5af239c8462a091

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3863383/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3863437/

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