MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3e6e4acb178ecef8b03ead9d1331e88a7ebde62e0382fe6b65a975acc9d9fe1b. 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: 10


Intelligence 10 IOCs YARA 12 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3e6e4acb178ecef8b03ead9d1331e88a7ebde62e0382fe6b65a975acc9d9fe1b
SHA3-384 hash: 9c0d62031b5230e9e93f6468c0832ec197286dd34a4d835006ad40fd3e2af689bdafc8fa814f046836f612af34454f76
SHA1 hash: 3f158a3df9745d4321ebf8b3e42903f713a12be5
MD5 hash: 01b008ddd1165beb243cae5e764404a9
humanhash: low-zebra-carbon-timing
File name:x86_32.kokz
Download: download sample
Signature Mirai
Create hunting rule
File size:95'220 bytes
First seen:2026-01-12 17:08:24 UTC
Last seen:2026-01-14 13:02:39 UTC
File type: elf
MIME type:application/x-executable
ssdeep 1536:zZHybqlHhjn5TDjAYJ+wW0pajqAn8jJGNadO7vR8FYGbuRKRfcpBzRFTq5:UqlH1J+wW0pyq08jJ4aYwZMYkpI5
TLSH T18D936CC6E79BC4F4ED6605B46133B33A45B2E6350029EF4ACF25B9369C26501B32B39D
telfhash t13131e3fa167e1ce857d46c02e11e9f717d4d6b7b186037e211b3553a362be0142abc39
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 :
64
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

Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
masquerade mirai
Link:
https://www.filescan.io/uploads/69652a8ec82deb762e79f187/reports/8b984a70-8ff7-4211-8951-5d57092811f4/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-01-12T15:06:00Z UTC
Last seen:
2026-01-13T18:30:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/3e6e4acb178ecef8b03ead9d1331e88a7ebde62e0382fe6b65a975acc9d9fe1b/results?tab=lookup
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/0eda5256-87fe-40f0-b12b-d112a161d9ef
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1849386
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: 1849386 Sample: x86_32.kokz.elf Startdate: 12/01/2026 Architecture: LINUX Score: 100 102 91.92.241.12, 48150, 6969 THEZONEBG Bulgaria 2->102 104 109.202.202.202, 80 INIT7CH Switzerland 2->104 106 3 other IPs or domains 2->106 122 Malicious sample detected (through community Yara rule) 2->122 124 Multi AV Scanner detection for submitted file 2->124 11 x86_32.kokz.elf 2->11         started        14 dash rm 2->14         started        16 dash rm 2->16         started        signatures3 process4 signatures5 136 Sample tries to kill multiple processes (SIGKILL) 11->136 138 Sample reads /proc/mounts (often used for finding a writable filesystem) 11->138 18 x86_32.kokz.elf 11->18         started        process6 file7 84 /var/spool/cron/root, ASCII 18->84 dropped 86 /var/spool/cron/crontabs/root, ASCII 18->86 dropped 88 /root/.bashrc, ASCII 18->88 dropped 90 11 other files (10 malicious) 18->90 dropped 126 Sample tries to set files in /etc globally writable 18->126 128 Sample tries to persist itself using /etc/profile 18->128 130 Drops files in suspicious directories 18->130 132 4 other signatures 18->132 22 x86_32.kokz.elf sh 18->22         started        24 x86_32.kokz.elf sh 18->24         started        26 x86_32.kokz.elf sh 18->26         started        28 21 other processes 18->28 signatures8 process9 signatures10 31 sh cp 22->31         started        35 sh .monitor 24->35         started        37 sh S99backup0 26->37         started        140 Sample tries to kill multiple processes (SIGKILL) 28->140 39 sh S99backup1 28->39         started        41 sh S99backup2 28->41         started        43 sh S99network 28->43         started        45 20 other processes 28->45 process11 file12 92 /usr/bin/.update, ELF 31->92 dropped 108 Writes identical ELF files to multiple locations 31->108 110 Drops invisible ELF files 31->110 112 Drops files in suspicious directories 31->112 47 .monitor 35->47         started        49 S99backup0 37->49         started        51 S99backup1 39->51         started        53 S99backup2 41->53         started        55 S99network 43->55         started        94 /var/spool/cron/crontabs/tmp.mDZhCv, ASCII 45->94 dropped 96 /var/log/.update, ELF 45->96 dropped 98 /var/jbx/shared/.update, ELF 45->98 dropped 100 /boot/.update, ELF 45->100 dropped 114 Sample deletes itself 45->114 116 Sample tries to persist itself using cron 45->116 118 Executes the "crontab" command typically for achieving persistence 45->118 120 Terminates several processes with shell command 'killall' 45->120 57 sh crontab 45->57         started        60 sh .update 45->60         started        62 sh .update 45->62         started        64 sh .update 45->64         started        signatures13 process14 signatures15 74 48 other processes 47->74 66 S99backup0 .update 49->66         started        76 39 other processes 49->76 68 S99backup1 .update 51->68         started        78 35 other processes 51->78 70 S99backup2 .update 53->70         started        80 35 other processes 53->80 72 S99network .update 55->72         started        82 33 other processes 55->82 134 Executes the "crontab" command typically for achieving persistence 57->134 process16
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/3e6e4acb178ecef8b03ead9d1331e88a7ebde62e0382fe6b65a975acc9d9fe1b
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3e6e4acb178ecef8b03ead9d1331e88a7ebde62e0382fe6b65a975acc9d9fe1b/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-01-12 17:10:08 UTC
AV detection:
11 of 24 (45.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hzxevsyxr3hprmb6vworgmpirj7l3zroaobp423fvf22zsoz7ynq._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion discovery execution linux persistence privilege_escalation
Link:
https://tria.ge/reports/260112-vntlashv4g/
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/9125450e-58c5-48ec-bf13-63a6bd59bb42
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.64
Link:
https://yomi.yoroi.company/submissions/3e6e4acb178ecef8b03ead9d1331e88a7ebde62e0382fe6b65a975acc9d9fe1b

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_generic_irc_catcher
Create hunting rule
Author:@_lubiedo
Description:Find new ELF IRC samples
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:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
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 3e6e4acb178ecef8b03ead9d1331e88a7ebde62e0382fe6b65a975acc9d9fe1b

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3749760/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3749717/
  
URLhaus
https://urlhaus.abuse.ch/url/3757301/

Comments