MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4da2f9c3efb6d7c41ac84566eea67e562fd16a2c4425b018098cc387b5def5d1. 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 16 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4da2f9c3efb6d7c41ac84566eea67e562fd16a2c4425b018098cc387b5def5d1
SHA3-384 hash: 1b63efaca1e811854a95a1e947717d01807946fbd833417cc438b2b9ed5a5518998abd3bb641057f2867d28c9a5f5557
SHA1 hash: dd6625252660592aaaa54b33aff354b23ab2ff57
MD5 hash: c8731485b969389590979119f4c2a137
humanhash: november-monkey-kilo-missouri
File name:x86_64
Download: download sample
Signature Mirai
Create hunting rule
File size:176'200 bytes
First seen:2026-05-25 22:10:18 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:m3IycwYZyxyvcc7cZ96dLySw3I/vp01g1r39acjTLf7NNjXWbZS3UL:mTcwXxyvccpHBqOZ3LfJU
TLSH T17C045B0AB0C094FEC89AC2744F9EE136D972F41D1234B59F27D4AF262E4EE615F6DA10
telfhash t1c261b8702ea179a872d7c76a721fdaadfc7208211de230e59f3765d1de573c80d51081
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 :
29
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Manages services
Connection attempt
Sets a written file as executable
Sends data to a server
Creating a file
Launching a process
Runs as daemon
Opens a port
Receives data from a server
Changes the time when the file was created, accessed, or modified
Locks files
Changes access rights for a written file
Creates or modifies files in /cron to set up autorun
Substitutes an application name
Performs a bruteforce attack in the network
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/6a14c8f2861ee596e64b438d/reports/8d05f021-db01-490d-b957-4854a5afd4ea/overview
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/92dfcf7d-ca65-49df-bb22-703eb94b9a50
Result
Threat name:
Gafgyt, Mirai
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1918323
Signature
Connects to many ports of the same IP (likely port scanning)
Drops files in suspicious directories
Executes the "crontab" command typically for achieving persistence
Executes the "iptables" command to insert, remove and/or manipulate rules
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample reads /proc/mounts (often used for finding a writable filesystem)
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 Gafgyt
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1918323 Sample: x86_64.elf Startdate: 26/05/2026 Architecture: LINUX Score: 100 65 74.216.137.196, 23 ZAYO-6461-ZayoBandwidthUS Canada 2->65 67 137.165.144.251, 23 WILLIAMSCOLLEGE-WilliamsCollegeUS United States 2->67 69 98 other IPs or domains 2->69 71 Malicious sample detected (through community Yara rule) 2->71 73 Multi AV Scanner detection for submitted file 2->73 75 Yara detected Gafgyt 2->75 77 2 other signatures 2->77 10 x86_64.elf 2->10         started        12 systemd snapd-env-generator 2->12         started        signatures3 process4 process5 14 x86_64.elf 10->14         started        file6 59 /usr/local/bin/9w7mre5LZG7iv2a, ELF 14->59 dropped 61 /etc/rc.local, ASCII 14->61 dropped 63 /etc/init.d/0ePhfwp2fjw, POSIX 14->63 dropped 87 Sample tries to set files in /etc globally writable 14->87 89 Drops files in suspicious directories 14->89 91 Sample reads /proc/mounts (often used for finding a writable filesystem) 14->91 93 Sample tries to persist itself using System V runlevels 14->93 18 x86_64.elf sh 14->18         started        20 x86_64.elf 14->20         started        22 x86_64.elf sh 14->22         started        24 2 other processes 14->24 signatures7 process8 process9 26 sh crontab 18->26         started        30 sh 18->30         started        32 x86_64.elf sh 20->32         started        34 x86_64.elf sh 20->34         started        36 x86_64.elf sh 20->36         started        42 2 other processes 20->42 38 sh crontab 22->38         started        40 sh systemctl 24->40         started        file10 57 /var/spool/cron/crontabs/tmp.XeIebu, ASCII 26->57 dropped 79 Sample tries to persist itself using cron 26->79 81 Executes the "crontab" command typically for achieving persistence 26->81 44 sh crontab 30->44         started        47 sh iptables 32->47         started        49 sh busybox 34->49         started        51 sh busybox 36->51         started        53 sh 42->53         started        55 sh 42->55         started        signatures11 process12 signatures13 83 Executes the "crontab" command typically for achieving persistence 44->83 85 Executes the "iptables" command to insert, remove and/or manipulate rules 47->85
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/4da2f9c3efb6d7c41ac84566eea67e562fd16a2c4425b018098cc387b5def5d1
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4da2f9c3efb6d7c41ac84566eea67e562fd16a2c4425b018098cc387b5def5d1/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-05-25 22:11:36 UTC
File Type:
ELF64 Little (Exe)
AV detection:
17 of 36 (47.22%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jwrptq7pw3l4igwiivto5jt6kyx5c2rmiqs3agajrtbypno66xiq._file
Result
Malware family:
n/a
Score:
  6/10
Tags:
discovery execution linux persistence privilege_escalation
Link:
https://tria.ge/reports/260525-13wl4aay7x/
Behaviour
Reads runtime system information
Changes its process name
Reads system network configuration
Creates/modifies Cron job
Enumerates active TCP sockets
Modifies init.d
Modifies rc script
Modifies systemd
Write file to user bin folder
Please note that we are no longer able to provide a coverage score for Virus Total.

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:ELF_IoT_Persistence_Hunt
Create hunting rule
Author:4r4
Description:Hunts for ELF files with persistence and download capabilities
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:Linux_Trojan_Gafgyt_0cd591cd
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_33b4111a
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_620087b9
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_807911a2
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_9e9530a7
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_a33a8363
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_d0c57a2e
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_d4227dbf
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_d996d335
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_e0cf29e2
Create hunting rule
Author:Elastic Security
Rule name:MatchByteSequence
Create hunting rule
Author:Generated by ChatGPT
Description:Rule to match specific byte sequence: 89 C8 C1 E8 08 31 D1 31 C8
Rule name:setsockopt
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
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 4da2f9c3efb6d7c41ac84566eea67e562fd16a2c4425b018098cc387b5def5d1

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3853082/
  
Delivery method
Distributed via web download

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