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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a2437337621d69e4ed99496bbe99d7ca7a1f0f02eb2bccd483198b89ab21d952. 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: 6


Intelligence 6 IOCs YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a2437337621d69e4ed99496bbe99d7ca7a1f0f02eb2bccd483198b89ab21d952
SHA3-384 hash: 0db3c4c66be485a34ec3403b14be1865fcfb344cb7d2065d33ce2a011f84cc7016c7152c94ec7019efb0b271647899ea
SHA1 hash: 301a8be5939e38d3919055029ec03cad53ef057c
MD5 hash: c3088fc42ca28d70362630f9e8088967
humanhash: grey-juliet-pizza-network
File name:kushnet.sh4
Download: download sample
Signature Mirai
Create hunting rule
File size:198'456 bytes
First seen:2026-10-20 05:25:03 UTC
Last seen:2026-10-20 20:06:33 UTC
File type: elf
MIME type:application/x-executable
ssdeep 3072:Rl2par8sbVsIEzW2zExx3bQq/9LB8pVUq:RQor8sbJEzbzExFbQq/38pVUq
TLSH T1DE145A57F1129D81F14206F424ADC7F03F5299D723372CA1E9BB82F95B438AABC45B62
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 :
3
# of downloads :
82
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
Sanesecurity.Malware.28880.LC.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.28886.LC.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.29325.LC.Pl.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.ELF.Mirai-CZI.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Linux.Mirai-81.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-10011027-0
Create hunting rule

Unix.Trojan.Mirai-10011918-0
Create hunting rule

Unix.Trojan.Mirai-9441505-0
Create hunting rule

Gathering data
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-10-20T03:03:00Z UTC
Last seen:
2026-10-20T15:13:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/a2437337621d69e4ed99496bbe99d7ca7a1f0f02eb2bccd483198b89ab21d952/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/143b38a8-9cfa-48bb-a1a4-63c6b5fced55
Behavior Graph:
Download SVG
%3 guuid=b4a1afb5-2000-0000-24a4-54aa97080000 pid=2199 /usr/bin/sudo guuid=7edd80b7-2000-0000-24a4-54aa98080000 pid=2200 /tmp/sample.bin guuid=b4a1afb5-2000-0000-24a4-54aa97080000 pid=2199->guuid=7edd80b7-2000-0000-24a4-54aa98080000 pid=2200 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/ecf8c522-1301-418d-9b8b-3509d190868f
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1989186
Signature
Antivirus / Scanner detection for submitted sample
Drops files in suspicious directories
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 Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1989186 Sample: kushnet.sh4.elf Startdate: 20/10/2026 Architecture: LINUX Score: 100 40 150.129.62.191, 23 YASHTEL1-AS-AP27134lakshmibuildingadipamparoadvvmohallaIN India 2->40 42 13.19.109.78, 23 XEROX-WV-XEROXCORPORATIONUS United States 2->42 44 99 other IPs or domains 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 Antivirus / Scanner detection for submitted sample 2->48 50 Multi AV Scanner detection for submitted file 2->50 52 Yara detected Mirai 2->52 11 kushnet.sh4.elf 2->11         started        13 systemd snapd-env-generator 2->13         started        15 python3.8 dpkg 2->15         started        signatures3 process4 process5 17 kushnet.sh4.elf 11->17         started        process6 19 kushnet.sh4.elf 17->19         started        23 kushnet.sh4.elf 17->23         started        25 kushnet.sh4.elf 17->25         started        27 33 other processes 17->27 file7 36 /etc/init.d/S99ksync, POSIX 19->36 dropped 38 /etc/cron.d/ksync, ASCII 19->38 dropped 54 Sample tries to set files in /etc globally writable 19->54 56 Drops files in suspicious directories 19->56 58 Sample tries to persist itself using cron 19->58 29 kushnet.sh4.elf sh 19->29         started        60 Sample reads /proc/mounts (often used for finding a writable filesystem) 23->60 signatures8 process9 process10 31 sh update-rc.d 29->31         started        signatures11 62 Sample tries to persist itself using System V runlevels 31->62 34 update-rc.d systemctl 31->34         started        process12
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/a2437337621d69e4ed99496bbe99d7ca7a1f0f02eb2bccd483198b89ab21d952
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a2437337621d69e4ed99496bbe99d7ca7a1f0f02eb2bccd483198b89ab21d952/
Threat name:
Linux.Exploit.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-10-20 05:26:34 UTC
File Type:
ELF32 Little (Exe)
AV detection:
10 of 24 (41.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ujbxgn3cdvu6j3mzjfv35goxzj5b6dyc5mv4zveddgfytkzb3fja._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
linux
Link:
https://tria.ge/reports/261020-f4lhasad58/
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/a2437337621d69e4ed99496bbe99d7ca7a1f0f02eb2bccd483198b89ab21d952

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:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
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:enterpriseapps2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Trojan_Gafgyt_28a2fe0c
Create hunting rule
Author:Elastic Security
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 a2437337621d69e4ed99496bbe99d7ca7a1f0f02eb2bccd483198b89ab21d952

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3952580/
  
Delivery method
Distributed via web download

Comments