MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8e646a1ec0ae9ef84648d3de70787c8d78fe6985c487751a57408d0ac609aedd. 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 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8e646a1ec0ae9ef84648d3de70787c8d78fe6985c487751a57408d0ac609aedd
SHA3-384 hash: 894d756d8e70e734612b49b65d8949a071b845e78ce273aeca6a4da42415742cd25707da551a8266d8bd9a58f92a0225
SHA1 hash: 3bec5285799319b5d86d7300d3a913288b306381
MD5 hash: 451c05aac405dffeed86afec5ce3b9f1
humanhash: music-wyoming-fish-connecticut
File name:arm5.kok
Download: download sample
Signature Mirai
Create hunting rule
File size:107'732 bytes
First seen:2026-01-13 20:47:26 UTC
Last seen:2026-01-14 19:48:32 UTC
File type: elf
MIME type:application/x-executable
ssdeep 1536:HXAWJBQje1huAFa++fjjN+CjKuZAPu/U5bBDjwjN0WbLpjWOJ7MZbKNA7cx5aoqo:HXAWJBwb+QN+JnT5+CWb93Q7yB
TLSH T131B33B92FC81D602C6C521B7FB1E428D372757B8D2EA73039E266F21238A56B0F7B541
telfhash t151d02ef3de2020ee628008c5439eeb1114f8ba2b1f00701686d83fde4ac3791b00cc0a
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 :
73
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:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
masquerade mirai rust
Link:
https://www.filescan.io/uploads/6966af613827c9e1249bf848/reports/400f6aa4-ea80-4fc5-9152-7b3ed1c8711f/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-01-13T17:57:00Z UTC
Last seen:
2026-01-13T18:58:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.b HEUR:Backdoor.Linux.Gafgyt.ij HEUR:Backdoor.Linux.Gafgyt.gu
Link:
https://opentip.kaspersky.com/8e646a1ec0ae9ef84648d3de70787c8d78fe6985c487751a57408d0ac609aedd/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/9bd6ce2c-fb5f-4cb0-a2c0-906d8b634520
Behavior Graph:
Download SVG
%3 guuid=b6e72c18-1700-0000-f006-6c34690d0000 pid=3433 /usr/bin/sudo guuid=fe855e1a-1700-0000-f006-6c34710d0000 pid=3441 /tmp/sample.bin guuid=b6e72c18-1700-0000-f006-6c34690d0000 pid=3433->guuid=fe855e1a-1700-0000-f006-6c34710d0000 pid=3441 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/65345e8b-48e2-4a52-85a3-a5d3d39c7a25
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1850218
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 kill a massive number of system processes
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: 1850218 Sample: arm5.kok.elf Startdate: 13/01/2026 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 Multi AV Scanner detection for submitted file 2->122 11 arm5.kok.elf 2->11         started        14 dash rm 2->14         started        16 dash rm 2->16         started        signatures3 process4 signatures5 134 Sample tries to kill multiple processes (SIGKILL) 11->134 136 Sample reads /proc/mounts (often used for finding a writable filesystem) 11->136 18 arm5.kok.elf 11->18         started        process6 file7 94 /var/spool/cron/root, ASCII 18->94 dropped 96 /var/spool/cron/crontabs/root, ASCII 18->96 dropped 98 /root/.bashrc, ASCII 18->98 dropped 100 11 other files (10 malicious) 18->100 dropped 124 Sample tries to set files in /etc globally writable 18->124 126 Sample tries to persist itself using /etc/profile 18->126 128 Drops files in suspicious directories 18->128 130 4 other signatures 18->130 22 arm5.kok.elf sh 18->22         started        24 arm5.kok.elf sh 18->24         started        26 arm5.kok.elf sh 18->26         started        28 21 other processes 18->28 signatures8 process9 signatures10 31 sh .monitor 22->31         started        33 sh cp 24->33         started        37 sh S99backup0 26->37         started        138 Sample tries to kill a massive number of system processes 28->138 140 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 47 .monitor 31->47         started        84 /usr/bin/.update, ELF 33->84 dropped 108 Writes identical ELF files to multiple locations 33->108 110 Drops invisible ELF files 33->110 112 Drops files in suspicious directories 33->112 49 S99backup0 37->49         started        51 S99backup1 39->51         started        53 S99backup2 41->53         started        55 S99network 43->55         started        86 /var/spool/cron/crontabs/tmp.1uJsid, ASCII 45->86 dropped 88 /var/log/.update, ELF 45->88 dropped 90 /var/jbx/shared/.update, ELF 45->90 dropped 92 /boot/.update, ELF 45->92 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 50 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 33 other processes 53->80 72 S99network .update 55->72         started        82 31 other processes 55->82 132 Executes the "crontab" command typically for achieving persistence 57->132 process16
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/8e646a1ec0ae9ef84648d3de70787c8d78fe6985c487751a57408d0ac609aedd
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8e646a1ec0ae9ef84648d3de70787c8d78fe6985c487751a57408d0ac609aedd/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/8e646a1ec0ae9ef84648d3de70787c8d78fe6985c487751a57408d0ac609aedd
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-01-13 20:48:31 UTC
File Type:
ELF32 Little (Exe)
AV detection:
13 of 24 (54.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rzsguhwav2ppqrsi2ppha6d4rv4p42mfysdxkgsxicgqvrqjv3oq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai
Link:
https://tria.ge/reports/260113-zk5xdaav8c/
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-10001386-0
YARA:
n/a
Link:
https://app.threat.zone/submission/5d2edc94-97c9-4b3f-b57f-4a9c1b55c71d
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/8e646a1ec0ae9ef84648d3de70787c8d78fe6985c487751a57408d0ac609aedd

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_Generic_Threat_d94e1020
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 8e646a1ec0ae9ef84648d3de70787c8d78fe6985c487751a57408d0ac609aedd

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3757307/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3749721/

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