MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1570e62aef9187e14d40c0951f9c40ae6b9ab24391a4713f8434943b037fb750. 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 14 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1570e62aef9187e14d40c0951f9c40ae6b9ab24391a4713f8434943b037fb750
SHA3-384 hash: 170550dc06d11173a9545e4ac7f386364c6a778983738865cb0fa80fb1c3953b9de912a47fc8801feedaf09711adfeea
SHA1 hash: 092d8fd8c6190e998c9caaba1d37c927b6a7399f
MD5 hash: 9243e0af717def05161cc85b55349292
humanhash: pluto-double-lithium-mars
File name:x86_64.kokz
Download: download sample
Signature Mirai
Create hunting rule
File size:97'808 bytes
First seen:2026-01-13 20:21:45 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:/Hlcor9LhbU7TxtZbsQHuieqJFp1nTEiZPubw0fq2DsEO8G2:/drU7ltZbso3eqN1nTEidEfq2w72
TLSH T174A37C42BAC088FDC45AC275525FA2B5D471F91E2231325B97C0FE266D9EE123B1E2D2
telfhash t1993139706d992ea421db5738b31be1e5d46119205af171e0ac3ba8f7df027c80d920e3
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 :
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-10017351-0
Create hunting rule

Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
masquerade mirai
Link:
https://www.filescan.io/uploads/6966a97f60d1ef876dee4915/reports/74f657d7-b73d-45f5-9a3a-078d56bb3937/overview
Verdict:
Malicious
File Type:
elf.64.le
First seen:
2026-01-13T17:34:00Z UTC
Last seen:
2026-01-13T18:16:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.b
Link:
https://opentip.kaspersky.com/1570e62aef9187e14d40c0951f9c40ae6b9ab24391a4713f8434943b037fb750/results?tab=lookup
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/3b0bf650-69e5-44cc-a370-2d11c136a247
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1850194
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: 1850194 Sample: x86_64.kokz.elf Startdate: 13/01/2026 Architecture: LINUX Score: 100 104 91.92.241.12, 50566, 6969 THEZONEBG Bulgaria 2->104 106 54.247.62.1, 443, 57226 AMAZON-02US United States 2->106 122 Malicious sample detected (through community Yara rule) 2->122 124 Multi AV Scanner detection for submitted file 2->124 11 x86_64.kokz.elf 2->11         started        14 dash rm 2->14         started        16 dash head 2->16         started        18 8 other processes 2->18 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 20 x86_64.kokz.elf 11->20         started        process6 file7 96 /var/spool/cron/root, ASCII 20->96 dropped 98 /var/spool/cron/crontabs/root, ASCII 20->98 dropped 100 /root/.bashrc, ASCII 20->100 dropped 102 11 other files (10 malicious) 20->102 dropped 128 Sample tries to set files in /etc globally writable 20->128 130 Sample tries to persist itself using /etc/profile 20->130 132 Drops files in suspicious directories 20->132 134 4 other signatures 20->134 24 x86_64.kokz.elf sh 20->24         started        26 x86_64.kokz.elf sh 20->26         started        28 x86_64.kokz.elf sh 20->28         started        30 21 other processes 20->30 signatures8 process9 signatures10 33 sh cp 24->33         started        37 sh crontab 26->37         started        39 sh 26->39         started        41 sh cp 28->41         started        140 Sample tries to kill multiple processes (SIGKILL) 30->140 43 sh S99backup0 30->43         started        45 sh S99backup1 30->45         started        47 sh S99backup2 30->47         started        49 19 other processes 30->49 process11 file12 86 /usr/bin/.update, ELF 33->86 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 88 /var/spool/cron/crontabs/tmp.n1lQDU, ASCII 37->88 dropped 114 Sample tries to persist itself using cron 37->114 116 Executes the "crontab" command typically for achieving persistence 37->116 51 sh crontab 39->51         started        90 /boot/.update, ELF 41->90 dropped 54 S99backup0 43->54         started        56 S99backup1 45->56         started        58 S99backup2 47->58         started        92 /var/log/.update, ELF 49->92 dropped 94 /var/jbx/shared/.update, ELF 49->94 dropped 118 Sample deletes itself 49->118 120 Terminates several processes with shell command 'killall' 49->120 60 S99network 49->60         started        62 .monitor 49->62         started        64 sh .update 49->64         started        66 2 other processes 49->66 signatures13 process14 signatures15 126 Executes the "crontab" command typically for achieving persistence 51->126 68 S99backup0 .update 54->68         started        76 31 other processes 54->76 70 S99backup1 .update 56->70         started        78 29 other processes 56->78 72 S99backup2 .update 58->72         started        80 25 other processes 58->80 74 S99network .update 60->74         started        82 23 other processes 60->82 84 2 other processes 62->84 process16
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/1570e62aef9187e14d40c0951f9c40ae6b9ab24391a4713f8434943b037fb750
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/1570e62aef9187e14d40c0951f9c40ae6b9ab24391a4713f8434943b037fb750/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/1570e62aef9187e14d40c0951f9c40ae6b9ab24391a4713f8434943b037fb750
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-01-13 20:22:25 UTC
File Type:
ELF64 Little (Exe)
AV detection:
19 of 37 (51.35%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=cvyomkxpsgd6ctkayckr7hcavzvzvmsdsgshcp4egskdwa37w5ia._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet defense_evasion discovery execution linux persistence privilege_escalation
Link:
https://tria.ge/reports/260113-y5q4aahz8c/
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
Mirai
Mirai family
Verdict:
Malicious
Tags:
trojan gafgyt mirai Unix.Trojan.Mirai-7640640-0
YARA:
Linux_Trojan_Gafgyt_9e9530a7 Linux_Trojan_Gafgyt_807911a2 Linux_Trojan_Gafgyt_d4227dbf Linux_Trojan_Gafgyt_d996d335 Linux_Trojan_Gafgyt_620087b9 Linux_Trojan_Gafgyt_33b4111a Linux_Trojan_Mirai_6a77af0f Linux_Trojan_Mirai_e0cf29e2
Link:
https://app.threat.zone/submission/6733da3f-44d4-456a-b4c9-af207b0d3e29
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/1570e62aef91/report/overview.html
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/1570e62aef9187e14d40c0951f9c40ae6b9ab24391a4713f8434943b037fb750

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: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_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:linux_generic_irc_catcher
Create hunting rule
Author:@_lubiedo
Description:Find new ELF IRC samples
Rule name:Linux_Trojan_Gafgyt_33b4111a
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_620087b9
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_807911a2
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_9e9530a7
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_d4227dbf
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_d996d335
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_6a77af0f
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_e0cf29e2
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

sh bf5a1e8b25d6ef368f11028fc492cc5e4a7e623a5b603a505828ae1c2e62fa3d

Mirai

elf 1570e62aef9187e14d40c0951f9c40ae6b9ab24391a4713f8434943b037fb750

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3749720/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3757303/
  
URLhaus
https://urlhaus.abuse.ch/url/3749718/
  
Dropped by
SHA256 bf5a1e8b25d6ef368f11028fc492cc5e4a7e623a5b603a505828ae1c2e62fa3d
  
Dropped by
MD5 2c6d6e8f4f3edce40d4557c8cc5b5b83
  
URLhaus
https://urlhaus.abuse.ch/url/3757736/

Comments