MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bd744729e85f0084857466fe1d3df9d5caacb8b1f7cb0ac2bac6067361907da9. 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: 5


Intelligence 5 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bd744729e85f0084857466fe1d3df9d5caacb8b1f7cb0ac2bac6067361907da9
SHA3-384 hash: dab40b9872e46c2a8bc4750b7e50de0a3bce85f298477332be735d414948fdfa2c353ae3ee1803ec33c4b0f21fc07eac
SHA1 hash: 479358d113de7a6f1d52147b65dcc5d58b52d9d9
MD5 hash: 8c21376ca7a9fdb38c4a9cc2ae62cbc2
humanhash: mountain-ink-nine-connecticut
File name:RYb
Download: download sample
Signature Mirai
Create hunting rule
File size:98'444 bytes
First seen:2026-07-29 20:32:41 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:TWAuojFRU1tftXcTBiA60g34SF83a6H5OQSJX4mMU4py70D5HPE9Sp:CAlqtftXciA6n83Ty
TLSH T11CA3C84AAF611DBBD81BDD3705AD0B4235CCA60771683B723934D928FA4A54F8AD3CB4
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 :
84
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file
Sends data to a server
Receives data from a server
Sets a written file as executable
Runs as daemon
Manages services
Kills processes
Collects information on the CPU
Collects information on the RAM
Connection attempt
Writes symbolic links to system directory
Creates or modifies files in /cron to set up autorun
Creates or modifies files in /init.d to set up autorun
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/6a6a63985751e528c5e39b26/reports/ca298000-5203-432b-ba1d-6c2d7a7dd3b7/overview
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/91202347-c748-43d3-8f52-b3a7979c2af2
Behavior Graph:
Download SVG
%3 guuid=8a9dbbcd-1c00-0000-78b8-9c65860c0000 pid=3206 /usr/bin/sudo guuid=0f8c31d4-1c00-0000-78b8-9c65910c0000 pid=3217 /tmp/sample.bin guuid=8a9dbbcd-1c00-0000-78b8-9c65860c0000 pid=3206->guuid=0f8c31d4-1c00-0000-78b8-9c65910c0000 pid=3217 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/f10aa53c-831f-47d8-ab20-d2ef2289bede
Result
Threat name:
Generic IoTBotnet
Create hunting rule
Detection:
malicious
Classification:
spre.troj
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/1949827
Signature
Multi AV Scanner detection for submitted file
Sample reads /proc/mounts (often used for finding a writable filesystem)
Sample tries to kill multiple processes (SIGKILL)
Sample tries to persist itself using cron
Sample tries to persist itself using System V runlevels
Sample tries to set files in /etc globally writable
Yara detected Generic IoTBotnet
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1949827 Sample: RYb.elf Startdate: 29/07/2026 Architecture: LINUX Score: 76 42 129.121.114.124, 34218, 81 ORACLE-BMC-31898-OracleCorporationUS United States 2->42 44 Multi AV Scanner detection for submitted file 2->44 46 Yara detected Generic IoTBotnet 2->46 10 RYb.elf 2->10         started        12 systemd snapd-env-generator 2->12         started        14 systemd snapd-env-generator 2->14         started        16 6 other processes 2->16 signatures3 process4 process5 18 RYb.elf 10->18         started        process6 20 RYb.elf 18->20         started        process7 22 RYb.elf 20->22         started        26 RYb.elf 20->26         started        28 RYb.elf 20->28         started        30 6 other processes 20->30 file8 36 /etc/rc.local, POSIX 22->36 dropped 38 /etc/crontab, ASCII 22->38 dropped 40 /etc/cron.d/crond, ASCII 22->40 dropped 48 Sample tries to set files in /etc globally writable 22->48 50 Sample reads /proc/mounts (often used for finding a writable filesystem) 22->50 52 Sample tries to persist itself using cron 22->52 54 Sample tries to persist itself using System V runlevels 22->54 32 RYb.elf systemctl 22->32         started        34 RYb.elf systemctl 22->34         started        56 Sample tries to kill multiple processes (SIGKILL) 26->56 signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/bd744729e85f0084857466fe1d3df9d5caacb8b1f7cb0ac2bac6067361907da9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/bd744729e85f0084857466fe1d3df9d5caacb8b1f7cb0ac2bac6067361907da9/
Gathering data
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xv2eokpil4aijblum37b2ppz2xfkzofr67fqvqv2yydhgymqpwuq._file
Result
Malware family:
n/a
Score:
  9/10
Tags:
antivm discovery execution persistence privilege_escalation
Link:
https://tria.ge/reports/260729-zb245avvft/
Behaviour
Reads runtime system information
Checks CPU configuration
Creates/modifies Cron job
Enumerates running processes
Modifies rc script
Modifies systemd
Creates a large amount of network flows
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/bd744729e85f0084857466fe1d3df9d5caacb8b1f7cb0ac2bac6067361907da9

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: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 bd744729e85f0084857466fe1d3df9d5caacb8b1f7cb0ac2bac6067361907da9

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3893968/
  
Delivery method
Distributed via web download

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