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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c3bdc59075e3955bde80c7b59aabf071faacb63bd8e9b7451fcad21340e34d99. 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: 8


Intelligence 8 IOCs YARA 2 File information Comments

SHA256 hash: c3bdc59075e3955bde80c7b59aabf071faacb63bd8e9b7451fcad21340e34d99
SHA3-384 hash: d8730ed718a0ceebbf5eee6a9029f8aebd84c0a9270d209f4df38d6f653b4c999ce73149a7b22065980f5a9fce47a2c7
SHA1 hash: 90bfa751d695ce0a79bcedd3b227578739398d5c
MD5 hash: 4a9151d209ebabb2b242c38900293b56
humanhash: kitten-nineteen-blue-india
File name:iZ5O
Download: download sample
Signature Mirai
File size:101'300 bytes
First seen:2026-07-23 08:17:54 UTC
Last seen:2026-07-24 02:22:29 UTC
File type: elf
MIME type:application/x-executable
ssdeep 1536:xRXVBcOgXWzosZdvHqHVz4hEhjr4O44GHwiQcEJNuJ6OLP0kZy:xRXFSWzosZdvHqdvfG4hDJ20t
TLSH T1C5A3B51F2E619F6CF3A9823497F74B34A75D23D136E1C684D5ACD5002E2034E691FBAA
telfhash t18931d429493813f4d3b10d8d6eeefa32e05170db69265e378f51e8adde5e9429d10c1c
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence


File Origin
# of uploads :
3
# of downloads :
105
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Result
Verdict:
Malware
Maliciousness:

Behaviour
Manages services
Creating a file
Connection attempt
Sets a written file as executable
Kills processes
Runs as daemon
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:
Malicious
Uses P2P?:
false
Uses anti-vm?:
true
Architecture:
mips
Packer:
not packed
Botnet:
unknown
Number of open files:
55
Number of processes launched:
13
Processes remaning?
false
Remote TCP ports scanned:
not identified
Behaviour
Anti-VM
Persistence
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.32.be
First seen:
2026-07-23T06:28:00Z UTC
Last seen:
2026-07-25T04:08:00Z UTC
Hits:
~10
Status:
terminated
Behavior Graph:
%3 guuid=2ae42ac9-1900-0000-0b38-fc6802070000 pid=1794 /usr/bin/sudo guuid=5df926cb-1900-0000-0b38-fc6806070000 pid=1798 /tmp/sample.bin guuid=2ae42ac9-1900-0000-0b38-fc6802070000 pid=1794->guuid=5df926cb-1900-0000-0b38-fc6806070000 pid=1798 execve
Result
Threat name:
Generic IoTBotnet
Detection:
malicious
Classification:
spre.troj
Score:
76 / 100
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:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1946997 Sample: iZ5O.elf Startdate: 23/07/2026 Architecture: LINUX Score: 76 42 129.121.110.105, 46218, 5900 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 iZ5O.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 iZ5O.elf 10->18         started        process6 20 iZ5O.elf 18->20         started        process7 22 iZ5O.elf 20->22         started        26 iZ5O.elf 20->26         started        28 iZ5O.elf 20->28         started        30 5 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 iZ5O.elf systemctl 22->32         started        34 iZ5O.elf systemctl 22->34         started        56 Sample tries to kill multiple processes (SIGKILL) 26->56 signatures9 process10
Threat name:
Linux.Backdoor.Mirai
Status:
Suspicious
First seen:
2026-07-23 08:18:48 UTC
File Type:
ELF32 Big (Exe)
AV detection:
11 of 24 (45.83%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  1/10
Tags:
n/a
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:TH_Generic_MassHunt_Linux_Malware_2026_CYFARE
Author:CYFARE
Description:Generic Linux malware mass-hunt rule - 2026
Reference:https://cyfare.net/
Rule name:unixredflags3
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 c3bdc59075e3955bde80c7b59aabf071faacb63bd8e9b7451fcad21340e34d99

(this sample)

  
Delivery method
Distributed via web download

Comments