MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 03731d630f9aecd21c3d6169b03402978236b1aac45cbec1d795f81deb97f9b9. 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: 9


Intelligence 9 IOCs YARA 2 File information Comments

SHA256 hash: 03731d630f9aecd21c3d6169b03402978236b1aac45cbec1d795f81deb97f9b9
SHA3-384 hash: 071ecb75fa2b8c161ec0aa3955584d1a83d5746a418008b031d3ee394da1cf74caaf8e55fba2ed500d4211692ae11d82
SHA1 hash: 4df6284c9b6ff00fea2e366e404be87137c63861
MD5 hash: 8525619b2a8b545ccd17c6031297ab25
humanhash: orange-east-fix-nine
File name:aarch64
Download: download sample
Signature Mirai
File size:190'448 bytes
First seen:2025-07-22 23:09:18 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:KO5mV10iKUgyybJOvgTj7QSoFaEMlguMpV5xqtm6:V41uGybj7rGOgus5xq
TLSH T1E3144A69BA0F6C41F1C3D3F89E8C87E13E1B35E3C6768CB16D1212EDDAA39D55990902
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 :
83
Origin country :
DE DE
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Receives data from a server
Creating a file
Runs as daemon
Sets a written file as executable
Kills processes
Sends data to a server
Connection attempt
Substitutes an application name
Kills critical processes
Creates or modifies files in /init.d to set up autorun
Deleting of the original file
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
rust
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
not packed
Botnet:
unknown
Number of open files:
0
Number of processes launched:
0
Processes remaning?
false
Remote TCP ports scanned:
not identified
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Status:
terminated
Behavior Graph:
%3 guuid=2a66201b-1900-0000-0bcd-6610f3110000 pid=4595 /usr/bin/sudo guuid=9f271d1d-1900-0000-0bcd-6610fa110000 pid=4602 /tmp/sample.bin guuid=2a66201b-1900-0000-0bcd-6610f3110000 pid=4595->guuid=9f271d1d-1900-0000-0bcd-6610fa110000 pid=4602 execve guuid=052bc31d-1900-0000-0bcd-6610fe110000 pid=4606 /usr/bin/dash guuid=9f271d1d-1900-0000-0bcd-6610fa110000 pid=4602->guuid=052bc31d-1900-0000-0bcd-6610fe110000 pid=4606 clone
Result
Threat name:
Detection:
malicious
Classification:
troj.evad
Score:
84 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Drops files in suspicious directories
Multi AV Scanner detection for submitted file
Sample deletes itself
Sample tries to set files in /etc globally writable
Yara detected Mirai
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1742379 Sample: aarch64.elf Startdate: 23/07/2025 Architecture: LINUX Score: 84 29 89.116.20.194, 7074 LRTC-ASLT Lithuania 2->29 31 109.202.202.202, 80 INIT7CH Switzerland 2->31 33 3 other IPs or domains 2->33 35 Antivirus detection for dropped file 2->35 37 Antivirus / Scanner detection for submitted sample 2->37 39 Multi AV Scanner detection for submitted file 2->39 41 Yara detected Mirai 2->41 9 aarch64.elf 2->9         started        11 systemd journalctl 2->11         started        13 systemd systemd-journald 2->13         started        15 19 other processes 2->15 signatures3 process4 process5 17 aarch64.elf 9->17         started        process6 19 aarch64.elf 17->19         started        file7 25 /var/main, ELF 19->25 dropped 27 /etc/init.d/xs.main, POSIX 19->27 dropped 43 Sample tries to set files in /etc globally writable 19->43 45 Drops files in suspicious directories 19->45 47 Sample deletes itself 19->47 23 aarch64.elf 19->23         started        signatures8 process9
Verdict:
Malicious
Threat:
HEUR:Backdoor.Linux.Gafgyt
Threat name:
Linux.Exploit.Mirai
Status:
Malicious
First seen:
2025-07-22 23:10:31 UTC
File Type:
ELF64 Little (Exe)
AV detection:
13 of 23 (56.52%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  1/10
Tags:
linux
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:linux_generic_ipv6_catcher
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
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 03731d630f9aecd21c3d6169b03402978236b1aac45cbec1d795f81deb97f9b9

(this sample)

  
Delivery method
Distributed via web download

Comments