MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6e1c7d4bbc6f9bb8303e4ee6aceedece45d282ba8765aa136b79325725cdf156. 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 10 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6e1c7d4bbc6f9bb8303e4ee6aceedece45d282ba8765aa136b79325725cdf156
SHA3-384 hash: 31c585129e4dfafe4f603d770436f075bfce2aba81054da13b8a21006127b7d16c03eab20e06e1eee68323c41c117ae8
SHA1 hash: 780673e730b6eb236c7140cb6d5b4c2af0c89383
MD5 hash: ddc6ec09c26771ebad90a73ea8fa1a01
humanhash: purple-white-white-east
File name:x86_32.kokz
Download: download sample
Signature Mirai
Create hunting rule
File size:91'124 bytes
First seen:2026-01-03 19:28:40 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:F1k5kUFsjpTXTtiwoHGIBbyXi4tfA41QHvD+A4CXQvtAhWBero87cZN3Zm9+n:UmUF4pAwoHLBby7fA42HvD+Avy8KW/oP
TLSH T14B935BC2A793D8F5FD6612B4217BF3364672E9390039EB4ACB25B835A81A502F71735C
telfhash t1c73104fd1a7b0de8e7d06840a10d6a752e4ea37b24503ba38672d824227ee81517bd7d
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 :
39
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

Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Changes access rights for a written file
Sets a written file as executable
Changes the time when the file was created, accessed, or modified
Runs as daemon
Deletes a file
Creating a file
Kills processes
Opens a port
Deleting a recently created file
Creating a process from a recently created file
Launching a process
Creates or modifies files in /cron to set up autorun
Substitutes an application name
Writes files to system directory
Creates or modifies files to set up autorun
Creates or modifies files in /init.d to set up autorun
Creates or modifies symbolic links in /init.d to set up autorun
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
masquerade
Link:
https://www.filescan.io/uploads/69596e0a2fb7bb52ca860f6f/reports/33c4c557-1d42-441e-b64a-d5cbfe40abd9/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-01-03T20:15:00Z UTC
Last seen:
2026-01-03T20:36:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/6e1c7d4bbc6f9bb8303e4ee6aceedece45d282ba8765aa136b79325725cdf156/results?tab=lookup
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/32640063-8563-4fb0-b7b5-b9fd98cd1ce4
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1844283
Signature
Drops files in suspicious directories
Drops invisible ELF files
Executes the "crontab" command typically for achieving persistence
Malicious sample detected (through community Yara rule)
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 kill multiple processes (SIGKILL)
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: 1844283 Sample: x86_32.kokz.elf Startdate: 03/01/2026 Architecture: LINUX Score: 100 100 91.92.241.12, 50594, 6969 THEZONEBG Bulgaria 2->100 102 Malicious sample detected (through community Yara rule) 2->102 104 Multi AV Scanner detection for submitted file 2->104 11 x86_32.kokz.elf 2->11         started        signatures3 process4 signatures5 108 Sample tries to kill multiple processes (SIGKILL) 11->108 110 Sample reads /proc/mounts (often used for finding a writable filesystem) 11->110 14 x86_32.kokz.elf 11->14         started        process6 file7 92 /var/spool/cron/root, ASCII 14->92 dropped 94 /var/spool/cron/crontabs/root, ASCII 14->94 dropped 96 /root/.bashrc, ASCII 14->96 dropped 98 11 other files (10 malicious) 14->98 dropped 126 Sample tries to set files in /etc globally writable 14->126 128 Sample tries to persist itself using /etc/profile 14->128 130 Drops files in suspicious directories 14->130 132 4 other signatures 14->132 18 x86_32.kokz.elf sh 14->18         started        20 x86_32.kokz.elf sh 14->20         started        22 x86_32.kokz.elf sh 14->22         started        24 21 other processes 14->24 signatures8 process9 signatures10 27 sh cp 18->27         started        31 sh S99backup0 20->31         started        33 sh crontab 22->33         started        35 sh 22->35         started        106 Sample tries to kill multiple processes (SIGKILL) 24->106 37 sh S99backup1 24->37         started        39 sh S99backup2 24->39         started        41 sh S99network 24->41         started        43 19 other processes 24->43 process11 file12 82 /usr/bin/.update, ELF 27->82 dropped 112 Writes identical ELF files to multiple locations 27->112 114 Drops invisible ELF files 27->114 116 Drops files in suspicious directories 27->116 45 S99backup0 31->45         started        84 /var/spool/cron/crontabs/tmp.DRzv0l, ASCII 33->84 dropped 118 Sample tries to persist itself using cron 33->118 120 Executes the "crontab" command typically for achieving persistence 33->120 47 sh crontab 35->47         started        50 S99backup1 37->50         started        52 S99backup2 39->52         started        54 S99network 41->54         started        86 /var/log/.update, ELF 43->86 dropped 88 /var/jbx/shared/.update, ELF 43->88 dropped 90 /boot/.update, ELF 43->90 dropped 122 Sample deletes itself 43->122 124 Terminates several processes with shell command 'killall' 43->124 56 .monitor 43->56         started        58 sh .update 43->58         started        60 sh .update 43->60         started        62 sh .update 43->62         started        signatures13 process14 signatures15 64 S99backup0 .update 45->64         started        72 39 other processes 45->72 134 Executes the "crontab" command typically for achieving persistence 47->134 66 S99backup1 .update 50->66         started        74 37 other processes 50->74 68 S99backup2 .update 52->68         started        76 33 other processes 52->76 70 S99network .update 54->70         started        78 31 other processes 54->78 80 32 other processes 56->80 process16
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/6e1c7d4bbc6f9bb8303e4ee6aceedece45d282ba8765aa136b79325725cdf156
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/6e1c7d4bbc6f9bb8303e4ee6aceedece45d282ba8765aa136b79325725cdf156/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-01-03 19:29:17 UTC
File Type:
ELF32 Little (Exe)
AV detection:
17 of 37 (45.95%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=nyoh2s54n6n3qmb6j3tkz3w6zzc5fav2q5s2ue3lpezfojon6fla._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion discovery execution linux persistence privilege_escalation
Link:
https://tria.ge/reports/260103-x64v4avjgz/
Behaviour
Reads runtime system information
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
Verdict:
Malicious
Tags:
trojan gafgyt mirai Unix.Trojan.Mirai-10001386-0
YARA:
Linux_Trojan_Gafgyt_5bf62ce4 Linux_Trojan_Mirai_b14f4c5d Linux_Trojan_Mirai_5f7b67b8 Linux_Trojan_Mirai_ae9d0fa6 Linux_Trojan_Mirai_cc93863b
Link:
https://app.threat.zone/submission/58930ee2-60de-47b4-be40-75428079627b
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:Linux_Trojan_Gafgyt_5bf62ce4
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_5f7b67b8
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_ae9d0fa6
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_b14f4c5d
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_cc93863b
Create hunting rule
Author:Elastic Security
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 6e1c7d4bbc6f9bb8303e4ee6aceedece45d282ba8765aa136b79325725cdf156

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3749760/
  
Delivery method
Distributed via web download

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