MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 58f21a0c7efee10dba3dc34fc3fefc58631f3195513518bbe7fa14fca2b68036. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 58f21a0c7efee10dba3dc34fc3fefc58631f3195513518bbe7fa14fca2b68036
SHA3-384 hash: c270d5300fbaa8494fe2f9061b1d08c9795a4803a0bba41c0c4b4b991e5730a247230b20c9d9724570c0a1649bcbc489
SHA1 hash: 7b78b9e43e0f6edbf47d9d9ad9c958c8fccc0992
MD5 hash: 1b9c8365b288bef573aed56c2b5e6b60
humanhash: spaghetti-montana-carbon-grey
File name:flutter.arm8
Download: download sample
Signature Mirai
Create hunting rule
File size:103'628 bytes
First seen:2026-08-18 20:40:09 UTC
Last seen:2026-08-19 11:41:17 UTC
File type: elf
MIME type:application/x-sharedlib
ssdeep 3072:NqLZ4wBpvA4Ry0bgUjTxhzpeKIA1dzEmP:NwzFDcqTx9kKIkzEmP
TLSH T185A3128E190E29F7F45E8B31CE35779CC1092229BC164CAE285D8657734A7BFAC6631C
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 UPX
File size (compressed) :103'628 bytes
File size (de-compressed) :191'160 bytes
Format:linux/arm64
Unpacked file: 01234a4621b885b6371d3669a7935c616652bdeb85582e251ebb548620b56ee5

Intelligence

File Origin
# of uploads :
2
# of downloads :
66
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/7b4afe24-6568-4bab-b07f-7f92abb66062/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Opens a port
Kills processes
Creating a file
Connection attempt
DNS request
Runs as daemon
Manages services
Changes access rights for a written file
Sends data to a server
Creates or modifies files in /cron to set up autorun
Substitutes an application name
Creates or modifies files in /init.d to set up autorun
Performs a bruteforce attack in the network
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
masquerade packed upx
Link:
https://www.filescan.io/uploads/6a84c3482278e3f5267bf939/reports/cc030cf9-7b61-4b05-b8c4-4220e0fc429f/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
UPX
Botnet:
unknown
Number of open files:
0
Number of processes launched:
0
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/58f21a0c7efee10dba3dc34fc3fefc58631f3195513518bbe7fa14fca2b68036
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/e32543cb-7f23-4cf0-9ed0-839f8456dd56
Behavior Graph:
Download SVG
%3 guuid=001b2614-1c00-0000-db3c-94e0f10b0000 pid=3057 /usr/bin/sudo guuid=959c8216-1c00-0000-db3c-94e0f60b0000 pid=3062 /tmp/sample.bin guuid=001b2614-1c00-0000-db3c-94e0f10b0000 pid=3057->guuid=959c8216-1c00-0000-db3c-94e0f60b0000 pid=3062 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9e78da55-5070-4af1-9934-9c4f41991254
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.evad
Score:
60 / 100
Link:
https://www.joesandbox.com/analysis/1959975
Signature
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Sample tries to persist itself using cron
Sample tries to persist itself using System V runlevels
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1959975 Sample: flutter.arm8.elf Startdate: 18/08/2026 Architecture: LINUX Score: 60 36 vps.atlas101.us.kg 91.92.42.242, 51906, 6767 TODYL-CLOUD-TodylIncUS Netherlands 2->36 38 Multi AV Scanner detection for submitted file 2->38 40 Sample is packed with UPX 2->40 10 flutter.arm8.elf 2->10         started        12 systemd snapd-env-generator 2->12         started        14 systemd snapd-env-generator 2->14         started        signatures3 process4 process5 16 flutter.arm8.elf 10->16         started        process6 18 flutter.arm8.elf 16->18         started        file7 32 /etc/rc.local, ASCII 18->32 dropped 34 /etc/cron.d/flutter, ASCII 18->34 dropped 42 Sample tries to persist itself using cron 18->42 44 Sample tries to persist itself using System V runlevels 18->44 22 flutter.arm8.elf 18->22         started        24 flutter.arm8.elf systemctl 18->24         started        26 flutter.arm8.elf systemctl 18->26         started        28 flutter.arm8.elf 18->28         started        signatures8 process9 process10 30 flutter.arm8.elf 22->30         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/58f21a0c7efee10dba3dc34fc3fefc58631f3195513518bbe7fa14fca2b68036
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/58f21a0c7efee10dba3dc34fc3fefc58631f3195513518bbe7fa14fca2b68036/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ldzbudd673qq3or5ynh4h7x4lbrr6mmvke2rro7h7ikpzivwqa3a._file
Result
Malware family:
n/a
Score:
  5/10
Tags:
linux upx
Link:
https://tria.ge/reports/260818-zf7v6s1zgw/
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/58f21a0c7efee10dba3dc34fc3fefc58631f3195513518bbe7fa14fca2b68036

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:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:SUSP_ELF_LNX_UPX_Compressed_File
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects a suspicious ELF binary with UPX compression
Reference:Internal Research
Rule name:upx_packed_elf_v1
Create hunting rule
Author:RandomMalware

File information

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

Web download

Mirai

elf 58f21a0c7efee10dba3dc34fc3fefc58631f3195513518bbe7fa14fca2b68036

(this sample)

Mirai

elf 01234a4621b885b6371d3669a7935c616652bdeb85582e251ebb548620b56ee5

  
URLhaus
https://urlhaus.abuse.ch/url/3904708/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 01234a4621b885b6371d3669a7935c616652bdeb85582e251ebb548620b56ee5
  
Dropping
MD5 f51a8a4f4497181bf65d60ae3ccf4d9e

Comments