MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ca7123ca2ac08f281c40bcf69e7b5c5c96c20f293702486ba20440249f001e1e. 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: ca7123ca2ac08f281c40bcf69e7b5c5c96c20f293702486ba20440249f001e1e
SHA3-384 hash: ef1ee831da8fc68ce7a0e4189875c2e2df82b4df2cd0e8f12b85b08a65beef05665b10fe8b27c678f3350f9f76ecdabb
SHA1 hash: a6d338f707d894e0fdcb5918313c4495ab9fa70b
MD5 hash: 6e49d003c014bf98c34ebfa9b6b55bc4
humanhash: carbon-whiskey-indigo-high
File name:mips.kok
Download: download sample
Signature Mirai
Create hunting rule
File size:135'632 bytes
First seen:2026-01-10 00:41:07 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:TyWu+IhvkmAAtbnC0U9sgEU0XvcinyWVCxLDf7Jt5xTw:TBd+s4USvcinHWLDTL5xU
TLSH T131D3C74E7E314F6DF3A8C23447B78B71975873D626E1C685E26CE5052EA034D281FBA8
telfhash t13d21b00c4a7823e497765c892beeff77e5a130de0a226d338e11a9adb5bcd424d00c1c
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
57
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 the time when the file was created, accessed, or modified
Deletes a file
Receives data from a server
Opens a port
Sends data to a server
Deleting a recently created file
Launching a process
Connection attempt
Sets a written file as executable
Creating a file
Changes access rights for a written file
Runs as daemon
Creating a process from a recently created file
Kills processes
Writes files to system directory
Creates or modifies files in /cron to set up autorun
Substitutes an application name
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:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
bash gafgyt lolbin masquerade mirai
Link:
https://www.filescan.io/uploads/6961a04907ef5fa68e836654/reports/7e521da1-7522-436c-9a0f-9462566e247f/overview
Verdict:
Malicious
File Type:
elf.32.be
First seen:
2026-01-09T18:24:00Z UTC
Last seen:
2026-01-11T10:21:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.b HEUR:Backdoor.Linux.Gafgyt.ij HEUR:Backdoor.Linux.Gafgyt.gu
Link:
https://opentip.kaspersky.com/ca7123ca2ac08f281c40bcf69e7b5c5c96c20f293702486ba20440249f001e1e/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/ba59f813-da32-4e5c-b1eb-c78471828b6f
Behavior Graph:
Download SVG
%3 guuid=d5eab902-1900-0000-83db-8bd05d140000 pid=5213 /usr/bin/sudo guuid=fa928b05-1900-0000-83db-8bd05e140000 pid=5214 /tmp/sample.bin guuid=d5eab902-1900-0000-83db-8bd05d140000 pid=5213->guuid=fa928b05-1900-0000-83db-8bd05e140000 pid=5214 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/c8c89cd9-41a8-4119-acae-ba5b7f8992bc
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1847745
Signature
Connects to many ports of the same IP (likely port scanning)
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: 1847745 Sample: mips.kok.elf Startdate: 10/01/2026 Architecture: LINUX Score: 100 98 37.202.197.6, 10761, 1227, 12918 RASANAIR Iran (ISLAMIC Republic Of) 2->98 100 91.92.241.12, 48156, 6969 THEZONEBG Bulgaria 2->100 102 17 other IPs or domains 2->102 104 Multi AV Scanner detection for submitted file 2->104 106 Connects to many ports of the same IP (likely port scanning) 2->106 11 mips.kok.elf 2->11         started        14 dash rm 2->14         started        16 dash rm 2->16         started        signatures3 process4 signatures5 132 Sample tries to kill multiple processes (SIGKILL) 11->132 134 Sample reads /proc/mounts (often used for finding a writable filesystem) 11->134 18 mips.kok.elf 11->18         started        process6 file7 80 /var/spool/cron/root, ASCII 18->80 dropped 82 /var/spool/cron/crontabs/root, ASCII 18->82 dropped 84 /root/.bashrc, ASCII 18->84 dropped 86 11 other files (10 malicious) 18->86 dropped 108 Sample tries to set files in /etc globally writable 18->108 110 Sample tries to persist itself using /etc/profile 18->110 112 Drops files in suspicious directories 18->112 114 4 other signatures 18->114 22 mips.kok.elf sh 18->22         started        24 mips.kok.elf sh 18->24         started        26 mips.kok.elf sh 18->26         started        28 94 other processes 18->28 signatures8 process9 signatures10 31 sh S99backup0 22->31         started        33 sh S99backup1 24->33         started        35 sh S99backup2 26->35         started        136 Sample tries to kill a massive number of system processes 28->136 138 Sample tries to kill multiple processes (SIGKILL) 28->138 37 sh S99network 28->37         started        39 sh cp 28->39         started        43 sh crontab 28->43         started        45 65 other processes 28->45 process11 file12 47 S99backup0 31->47         started        49 S99backup1 33->49         started        51 S99backup2 35->51         started        53 S99network 37->53         started        88 /usr/bin/.update, ELF 39->88 dropped 118 Writes identical ELF files to multiple locations 39->118 120 Drops invisible ELF files 39->120 122 Drops files in suspicious directories 39->122 90 /var/spool/cron/crontabs/tmp.o6A0rh, ASCII 43->90 dropped 124 Sample tries to persist itself using cron 43->124 126 Executes the "crontab" command typically for achieving persistence 43->126 92 /var/log/.update, ELF 45->92 dropped 94 /var/jbx/shared/.update, ELF 45->94 dropped 96 /boot/.update, ELF 45->96 dropped 128 Sample deletes itself 45->128 130 Terminates several processes with shell command 'killall' 45->130 55 sh crontab 45->55         started        58 .monitor 45->58         started        60 sh .update 45->60         started        signatures13 process14 signatures15 62 S99backup0 .update 47->62         started        70 141 other processes 47->70 64 S99backup1 .update 49->64         started        72 139 other processes 49->72 66 S99backup2 .update 51->66         started        74 131 other processes 51->74 68 S99network .update 53->68         started        76 123 other processes 53->76 116 Executes the "crontab" command typically for achieving persistence 55->116 78 2 other processes 58->78 process16
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/ca7123ca2ac08f281c40bcf69e7b5c5c96c20f293702486ba20440249f001e1e
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/ca7123ca2ac08f281c40bcf69e7b5c5c96c20f293702486ba20440249f001e1e/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/ca7123ca2ac08f281c40bcf69e7b5c5c96c20f293702486ba20440249f001e1e
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-01-10 00:41:45 UTC
File Type:
ELF32 Big (Exe)
AV detection:
11 of 24 (45.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zjyshsrkychsqhcaxt3j4624lslmedzjg4beq25caracjhyadypa._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet defense_evasion discovery execution persistence privilege_escalation
Link:
https://tria.ge/reports/260110-a15twahv6d/
Behaviour
Reads runtime system information
System Network Configuration Discovery
Writes file to shm directory
Changes its process name
Modifies Bash startup script
Modifies init.d
Modifies rc script
Write file to user bin folder
Creates/modifies Cron job
Creates/modifies environment variables
Deletes log files
Enumerates running processes
Executes dropped EXE
Unexpected DNS network traffic destination
Contacts a large (1332) amount of remote hosts
Mirai
Mirai family
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-10001386-0
YARA:
n/a
Link:
https://app.threat.zone/submission/aaf5cb05-b814-43e9-bbd8-486c5c5e37b9
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/ca7123ca2ac08f281c40bcf69e7b5c5c96c20f293702486ba20440249f001e1e

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 ca7123ca2ac08f281c40bcf69e7b5c5c96c20f293702486ba20440249f001e1e

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3749714/
  
Delivery method
Distributed via web download

Comments