MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4e9729db217b0a9ee61a51c05ff32840503cf6bc86617220352f2f32cfa2aa79. 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: 11


Intelligence 11 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4e9729db217b0a9ee61a51c05ff32840503cf6bc86617220352f2f32cfa2aa79
SHA3-384 hash: 5e943a4edfb3e99e308afd0d1c0f8fa1c6dee60864f5346054e262554ab070dfc5985173341b624e3288b38b2500cc78
SHA1 hash: 7d6927e1c590c148e6b67479ef2b8cb17252b21f
MD5 hash: 7f2007d90dc1b5a143e99ce86b97c06a
humanhash: uncle-oven-moon-river
File name:boatnet.arm7
Download: download sample
Signature Mirai
Create hunting rule
File size:73'720 bytes
First seen:2026-08-11 15:27:34 UTC
Last seen:2026-08-12 09:41:19 UTC
File type: elf
MIME type:application/x-executable
ssdeep 1536:hjUVeJNgcCuGoS4GS+d8YTGN26viIEy9YRIOlDsLAcDX6xcERsHU:pUVO5ioS8RYaN5viFI0DsLLDX6xcas0
TLSH T17B7302D1C3795069F93524B2E9E116D957916FECC3FB44F30BB0D814BA2624F39C5909
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 UPX
File size (compressed) :73'720 bytes
File size (de-compressed) :213'713 bytes
Format:linux/arm
Unpacked file: 1b53165bf1bb568148e479348155838c7cb298c715b3a73216abf8e0c1d2f822

Intelligence

File Origin
# of uploads :
2
# of downloads :
56
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/932273f3-a4ef-4db2-9ada-fed9f0925374/
Detection(s):
SecuriteInfo.com.Linux.Mirai.9829.26039.9085.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sets a written file as executable
Creating a file
Sends data to a server
Creating a file in the %temp% directory
Changes access rights for a file
Runs as daemon
Receives data from a server
Deleting a recently created file
Removes directories
Kills processes
Changes the time when the file was created, accessed, or modified
Removes directories from a temporary directory
Connection attempt
Launching a process
Changes access rights for a written file
Creates or modifies files in /cron to set up autorun
Creates or modifies files in /init.d to set up autorun
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
bashlite masquerade mirai packed upx
Link:
https://www.filescan.io/uploads/6a7b3f9c581313ef1205512a/reports/c051c555-0603-49de-86e5-4b4d6c39d25e/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-08-11T13:39:00Z UTC
Last seen:
2026-08-12T03:01:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/4e9729db217b0a9ee61a51c05ff32840503cf6bc86617220352f2f32cfa2aa79/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/ba6033cd-2417-44b2-97a1-77f9baa26393
Behavior Graph:
Download SVG
%3 guuid=9014f849-1a00-0000-0d5e-82d7af080000 pid=2223 /usr/bin/sudo guuid=90e2884c-1a00-0000-0d5e-82d7b3080000 pid=2227 /tmp/sample.bin guuid=9014f849-1a00-0000-0d5e-82d7af080000 pid=2223->guuid=90e2884c-1a00-0000-0d5e-82d7b3080000 pid=2227 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/2c8d2351-c40f-42a2-8ed8-9dce6a565b14
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1956171
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Deletes system log files
Drops files in suspicious directories
Executes the "crontab" command typically for achieving persistence
Malicious sample detected (through community Yara rule)
Manipulation of devices in /dev
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Sample tries to persist itself using cron
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1956171 Sample: boatnet.arm7.elf Startdate: 11/08/2026 Architecture: LINUX Score: 100 94 217.60.195.187, 48284, 8529 NETPOOLIN Netherlands 2->94 98 Malicious sample detected (through community Yara rule) 2->98 100 Antivirus detection for dropped file 2->100 102 Antivirus / Scanner detection for submitted sample 2->102 104 3 other signatures 2->104 12 boatnet.arm7.elf 2->12         started        signatures3 process4 process5 14 boatnet.arm7.elf 12->14         started        16 boatnet.arm7.elf 12->16         started        process6 18 boatnet.arm7.elf 14->18         started        signatures7 96 Drops files in suspicious directories 18->96 21 boatnet.arm7.elf 18->21         started        25 boatnet.arm7.elf sh 18->25         started        27 boatnet.arm7.elf 18->27         started        29 3 other processes 18->29 process8 file9 88 /usr/local/bin/infinitd, ELF 21->88 dropped 90 /etc/init.d/!infinitech, ASCII 21->90 dropped 110 Drops files in suspicious directories 21->110 31 boatnet.arm7.elf sh 21->31         started        33 boatnet.arm7.elf sh 21->33         started        35 boatnet.arm7.elf sh 21->35         started        47 13 other processes 21->47 37 sh crontab 25->37         started        41 sh 25->41         started        43 boatnet.arm7.elf 27->43         started        45 sh update-rc.d 29->45         started        49 2 other processes 29->49 signatures10 process11 file12 51 sh crontab 31->51         started        55 sh 31->55         started        57 sh crontab 33->57         started        59 sh 33->59         started        61 sh crontab 35->61         started        63 sh 35->63         started        92 /var/spool/cron/crontabs/tmp.Uq2XmS, ASCII 37->92 dropped 112 Sample tries to persist itself using cron 37->112 114 Executes the "crontab" command typically for achieving persistence 37->114 65 sh crontab 41->65         started        116 Manipulation of devices in /dev 43->116 118 Deletes system log files 43->118 67 sh crontab 47->67         started        69 13 other processes 47->69 signatures13 process14 file15 80 /var/spool/cron/cr...mp.ZhsyH6 (deleted), ASCII 51->80 dropped 106 Sample tries to persist itself using cron 51->106 108 Executes the "crontab" command typically for achieving persistence 51->108 71 sh crontab 55->71         started        82 /var/spool/cron/cr...mp.SiBUFT (deleted), ASCII 57->82 dropped 74 sh crontab 59->74         started        84 /var/spool/cron/cr...mp.X7Jwsv (deleted), ASCII 61->84 dropped 76 sh crontab 63->76         started        86 /var/spool/cron/cr...mp.DbvEm7 (deleted), ASCII 67->86 dropped 78 sh crontab 69->78         started        signatures16 process17 signatures18 120 Executes the "crontab" command typically for achieving persistence 71->120
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/4e9729db217b0a9ee61a51c05ff32840503cf6bc86617220352f2f32cfa2aa79
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4e9729db217b0a9ee61a51c05ff32840503cf6bc86617220352f2f32cfa2aa79/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-08-11 15:28:38 UTC
File Type:
ELF32 Little (Exe)
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=j2lstwzbpmfj5zq2khaf74ziibidz5v4qzqxeibvf4xtft5cvj4q._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion discovery execution persistence privilege_escalation upx
Link:
https://tria.ge/reports/260811-swjpysvhqe/
Behaviour
Command and Scripting Interpreter: Unix Shell
Reads runtime system information
UPX packed file
Creates/modifies Cron job
Modifies init.d
Modifies systemd
Write file to user bin folder
Writes file to system bin folder
Deletes Audit logs
Deletes journal logs
Modifies Watchdog functionality
Unexpected DNS network traffic destination
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/4e9729db217b0a9ee61a51c05ff32840503cf6bc86617220352f2f32cfa2aa79

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:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:SUSP_ELF_LNX_UPX_Compressed_File
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects a suspicious ELF binary with UPX compression
Reference:Internal Research
Rule name:TH_Generic_MassHunt_Linux_Malware_2026_CYFARE
Create hunting rule
Author:CYFARE
Description:Generic Linux malware mass-hunt rule - 2026
Reference:https://cyfare.net/
Rule name:upx_packed_elf_v1
Create hunting rule
Author:RandomMalware

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Mirai

elf 4e9729db217b0a9ee61a51c05ff32840503cf6bc86617220352f2f32cfa2aa79

(this sample)

Mirai

elf 1b53165bf1bb568148e479348155838c7cb298c715b3a73216abf8e0c1d2f822

  
URLhaus
https://urlhaus.abuse.ch/url/3899742/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 1b53165bf1bb568148e479348155838c7cb298c715b3a73216abf8e0c1d2f822
  
Dropping
MD5 5794cdd29b4af599dca2e13843c22c33
  
URLhaus
https://urlhaus.abuse.ch/url/3899741/

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