MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2d6cb6589fe95fecd52455fad883d0fcae68bfe9aa36de035a6422d1267f9355. 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: 12


Intelligence 12 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2d6cb6589fe95fecd52455fad883d0fcae68bfe9aa36de035a6422d1267f9355
SHA3-384 hash: 36ed410044acb52b524969fc847ada1c344092d2ff1fa06fbaf8006290a3f3c9a7921a0c347093c3c6f3b63c6c5b0456
SHA1 hash: 7bdab0cb94446e4253b2aca6e91e6de2d3df38b5
MD5 hash: 4968ddf5c1e3a59e4c1e62e4d70e7568
humanhash: jig-cold-speaker-gee
File name:mipsel.kok
Download: download sample
Signature Mirai
Create hunting rule
File size:132'952 bytes
First seen:2026-01-03 19:28:41 UTC
Last seen:2026-01-04 12:59:39 UTC
File type: elf
MIME type:application/x-executable
ssdeep 1536:tCSKQ0RnBld690EKVGgwl9iX9CQM3twvGbOV8Zp3KzQbHQonjRZwE7GP/dIhi2Q:bKxnZ69jK8gpNCQrs7bTRbGdIhQ
TLSH T1ACD3E709EF610FFBE8AFCD3706AD074525CC560622B92BB67574D928F54E18B0AE3874
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 :
2
# of downloads :
36
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
Sanesecurity.Malware.30455.LC.BadVar.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-10001386-0
Create hunting rule

Unix.Trojan.Mirai-10010127-0
Create hunting rule

Unix.Trojan.Mirai-10017351-0
Create hunting rule

Unix.Trojan.Mirai-10017641-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Changes access rights for a written file
Connection attempt
Runs as daemon
Kills processes
Opens a port
Launching a process
Sends data to a server
Creating a process from a recently created file
Creating a file
Deleting a recently created file
Deletes a file
Changes the time when the file was created, accessed, or modified
Receives data from a server
Sets a written file as executable
Creates or modifies files in /cron to set up autorun
Substitutes an application name
Writes files to system directory
Creates or modifies files in /init.d to set up autorun
Creates or modifies symbolic links in /init.d to set up autorun
Creates or modifies files to set up autorun
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
bash lolbin masquerade mirai
Link:
https://www.filescan.io/uploads/69596e088d1aa9829e29c0c2/reports/cd81af58-5a5c-4cac-930e-6fc112573067/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-01-03T16:35:00Z UTC
Last seen:
2026-01-03T19:01:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.b HEUR:Backdoor.Linux.Gafgyt.ij HEUR:Backdoor.Linux.Gafgyt.gu
Link:
https://opentip.kaspersky.com/2d6cb6589fe95fecd52455fad883d0fcae68bfe9aa36de035a6422d1267f9355/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/66db441a-3a69-4a63-9ac5-58fa312ebc08
Behavior Graph:
Download SVG
%3 guuid=83b2426f-1a00-0000-02ab-ac7cea080000 pid=2282 /usr/bin/sudo guuid=e14b5972-1a00-0000-02ab-ac7cef080000 pid=2287 /tmp/sample.bin guuid=83b2426f-1a00-0000-02ab-ac7cea080000 pid=2282->guuid=e14b5972-1a00-0000-02ab-ac7cef080000 pid=2287 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/50e24d0a-08e9-48c4-a532-d8f02d0b14d0
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/1844281
Signature
Drops files in suspicious directories
Drops invisible ELF files
Executes the "crontab" command typically for achieving persistence
Modifies the '.bashrc' or '.bash_profile' file typically for persisting actions
Multi AV Scanner detection for submitted file
Sample deletes itself
Sample reads /proc/mounts (often used for finding a writable filesystem)
Sample tries to persist itself using /etc/profile
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
Terminates several processes with shell command 'killall'
Writes identical ELF files to multiple locations
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1844281 Sample: mipsel.kok.elf Startdate: 03/01/2026 Architecture: LINUX Score: 96 93 171.225.223.53, 80 VIETEL-AS-APViettelGroupVN Viet Nam 2->93 95 95.161.128.53, 22 TIERA-ASRU Russian Federation 2->95 97 23 other IPs or domains 2->97 107 Multi AV Scanner detection for submitted file 2->107 11 dash rm mipsel.kok.elf 2->11         started        14 dash rm 2->14         started        signatures3 process4 signatures5 125 Sample reads /proc/mounts (often used for finding a writable filesystem) 11->125 16 mipsel.kok.elf 11->16         started        process6 file7 75 /var/spool/cron/root, ASCII 16->75 dropped 77 /var/spool/cron/crontabs/root, ASCII 16->77 dropped 79 /root/.bashrc, ASCII 16->79 dropped 81 11 other files (10 malicious) 16->81 dropped 99 Sample tries to set files in /etc globally writable 16->99 101 Sample tries to persist itself using /etc/profile 16->101 103 Drops files in suspicious directories 16->103 105 4 other signatures 16->105 20 mipsel.kok.elf sh 16->20         started        22 mipsel.kok.elf sh 16->22         started        24 mipsel.kok.elf sh 16->24         started        26 19 other processes 16->26 signatures8 process9 process10 28 sh .monitor 20->28         started        30 sh S99backup0 22->30         started        32 sh S99backup1 24->32         started        34 sh S99backup2 26->34         started        36 sh S99network 26->36         started        38 sh cp 26->38         started        42 16 other processes 26->42 file11 44 .monitor 28->44         started        46 S99backup0 30->46         started        48 S99backup1 32->48         started        50 S99backup2 34->50         started        52 S99network 36->52         started        83 /usr/bin/.update, ELF 38->83 dropped 111 Writes identical ELF files to multiple locations 38->111 113 Drops invisible ELF files 38->113 115 Drops files in suspicious directories 38->115 85 /var/spool/cron/crontabs/tmp.Y4n0Yx, ASCII 42->85 dropped 87 /var/log/.update, ELF 42->87 dropped 89 /var/jbx/shared/.update, ELF 42->89 dropped 91 /boot/.update, ELF 42->91 dropped 117 Sample deletes itself 42->117 119 Sample tries to persist itself using cron 42->119 121 Executes the "crontab" command typically for achieving persistence 42->121 123 Terminates several processes with shell command 'killall' 42->123 54 sh crontab 42->54         started        signatures12 process13 signatures14 65 119 other processes 44->65 57 S99backup0 .update 46->57         started        67 161 other processes 46->67 59 S99backup1 .update 48->59         started        69 155 other processes 48->69 61 S99backup2 .update 50->61         started        71 153 other processes 50->71 63 S99network .update 52->63         started        73 153 other processes 52->73 109 Executes the "crontab" command typically for achieving persistence 54->109 process15
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/2d6cb6589fe95fecd52455fad883d0fcae68bfe9aa36de035a6422d1267f9355
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/2d6cb6589fe95fecd52455fad883d0fcae68bfe9aa36de035a6422d1267f9355/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/2d6cb6589fe95fecd52455fad883d0fcae68bfe9aa36de035a6422d1267f9355
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-01-03 19:29:18 UTC
File Type:
ELF32 Little (Exe)
AV detection:
9 of 24 (37.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=fvwlmwe75fp6zvjekx5nra6q7sxgrp7jvi3n4a22mqrncjt7snkq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai defense_evasion discovery execution persistence privilege_escalation
Link:
https://tria.ge/reports/260103-x64v4acp8t/
Behaviour
Reads runtime system information
System Network Configuration Discovery
Writes file to shm directory
Changes its process name
Modifies Bash startup script
Creates/modifies Cron job
Creates/modifies environment variables
Deletes log files
Enumerates running processes
Modifies init.d
Modifies rc script
Write file to user bin folder
Executes dropped EXE
Unexpected DNS network traffic destination
Creates a large amount of network flows
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-10001386-0
YARA:
n/a
Link:
https://app.threat.zone/submission/9a2ed679-258c-408a-a80d-aa4c2b9a47bd
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:ach_202503_elf_Mirai
Create hunting rule
Author:abuse.ch
Description:Detects Mirai 'TSource' ELF files
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: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 2d6cb6589fe95fecd52455fad883d0fcae68bfe9aa36de035a6422d1267f9355

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3749759/
  
Delivery method
Distributed via web download

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