MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f99b7c76f81d4d5bfd4fbccf674b58418f8bf0019e8f6c5d5f30320e913a703a. 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: 7


Intelligence 7 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f99b7c76f81d4d5bfd4fbccf674b58418f8bf0019e8f6c5d5f30320e913a703a
SHA3-384 hash: 48aac45ef7886108191363bb011032c030d5212d60e6f4648e918595773fd93c02cf9ddea9444eb064ae2ea1589c525e
SHA1 hash: c973363a8620ac6ca25a1bff15180e8a57e951e0
MD5 hash: 8153380e0bff2d837a7525e42ec784e0
humanhash: nine-white-stream-potato
File name:kwari.sh4
Download: download sample
Signature Mirai
Create hunting rule
File size:51'968 bytes
First seen:2026-02-14 20:44:50 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:uaok/dgBORYzVUsvbE0Q/EFDBiSurCei:uG1ftsvbE0Q/wDYSur
TLSH T1B8337C67D82A4D98C5194278E4688D391B13F408A2973EF65E8EC762501BDBCF60E3F6
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 :
53
Origin country :
DE DE
Vendor Threat Intelligence
Malware configuration found for:
Mirai
Details
Mirai
a c2 socket address and a scan socket address
Link:
https://research.acce.ciphertechsolutions.com/results/2132917a-4ea0-415d-8f10-85d4ed003b21/
Detection(s):
SecuriteInfo.com.Linux.Mirai-61.UNOFFICIAL
Create hunting rule

Unix.Dropper.Mirai-7136014-0
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:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
masquerade obfuscated
Link:
https://www.filescan.io/uploads/6990defd2ffccda0976fdaf4/reports/06deb56a-e14c-4fb4-a13b-d8e7e4d2f47e/overview
Result
Gathering data
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/d2500022-4c2c-4470-9010-ef2a055fbfa2
Behavior Graph:
Download SVG
%3 guuid=c78460c2-1900-0000-6e52-2288d8090000 pid=2520 /usr/bin/sudo guuid=af1eb0c4-1900-0000-6e52-2288db090000 pid=2523 /tmp/sample.bin guuid=c78460c2-1900-0000-6e52-2288d8090000 pid=2520->guuid=af1eb0c4-1900-0000-6e52-2288db090000 pid=2523 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/1d95a53d-e03d-4271-8107-db8d3b20e8e3
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/f99b7c76f81d4d5bfd4fbccf674b58418f8bf0019e8f6c5d5f30320e913a703a
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f99b7c76f81d4d5bfd4fbccf674b58418f8bf0019e8f6c5d5f30320e913a703a/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-02-14 21:25:30 UTC
AV detection:
22 of 38 (57.89%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7gnxy5xydvgvx7kpxthwos2yighyx4abt2hwyxk7gaza5ej2oa5a._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai linux
Link:
https://tria.ge/reports/260214-zj2tbsgw7d/
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/f99b7c76f81d4d5bfd4fbccf674b58418f8bf0019e8f6c5d5f30320e913a703a

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

File information

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

Web download

Mirai

elf f99b7c76f81d4d5bfd4fbccf674b58418f8bf0019e8f6c5d5f30320e913a703a

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3777946/
  
Delivery method
Distributed via web download

Comments