MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 21250f8b2f5bc4b1622624c26091f1a89e4f921750f65f7b4fcf4c5d0959ac31. 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 7 File information Comments
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SHA256 hash: 21250f8b2f5bc4b1622624c26091f1a89e4f921750f65f7b4fcf4c5d0959ac31
SHA3-384 hash: 3865e6841e1a110a854e9c9ce7d918ad9d4a6ce22990190743d7248f2cbbc1452f66458ef07c71e25423bda1d5874b19
SHA1 hash: 0903360f210fdc20ac2d2acea6756e7df0513b5a
MD5 hash: 3bbff7fddcb27394c06878fbbedbe5a2
humanhash: maine-artist-summer-helium
File name:arm6
Download: download sample
Signature Mirai
Create hunting rule
File size:128'282 bytes
First seen:2026-02-04 05:41:08 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:pZbrJ6ah3P0srIGjE5L6wnezWVIOxVDlJj:pZbMah3frIGjE5+wkWVIOxVD7j
TLSH T1F5C34B46EB418B03C4D52776BA9F42493323EB54E3DB330699185FB43F86BAE0E67506
telfhash t10521e031673045196aa1cd60dced57b2112887172789fb33cf3584cc24190aeea3bc4f
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
67
Origin country :
DE DE
Vendor Threat Intelligence
Malware configuration found for:
Mirai
Details
Mirai
an XOR decryption key and at least a c2 socket address
Link:
https://research.acce.ciphertechsolutions.com/results/6b2e605e-e413-42b4-b805-1301e46dd42b/
Detection(s):
Sanesecurity.Malware.30435.LC.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-7100807-0
Create hunting rule

Unix.Dropper.Mirai-7135925-0
Create hunting rule

Unix.Dropper.Mirai-7136013-0
Create hunting rule

Unix.Dropper.Mirai-7136057-0
Create hunting rule

Unix.Dropper.Mirai-7139229-0
Create hunting rule

Unix.Dropper.Mirai-7540663-0
Create hunting rule

Unix.Trojan.Mirai-8025795-0
Create hunting rule

Unix.Trojan.Mirai-9858729-0
Create hunting rule

Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
not packed
Botnet:
unknown
Number of open files:
2
Number of processes launched:
2
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/21250f8b2f5bc4b1622624c26091f1a89e4f921750f65f7b4fcf4c5d0959ac31
Behaviour
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Gathering data
Verdict:
Malicious
File Type:
ELF 32 LE
Detections:
HEUR:Backdoor.Linux.Mirai.r HEUR:Backdoor.Linux.Mirai.ez HEUR:Backdoor.Linux.Mirai.b
Link:
https://opentip.kaspersky.com/21250f8b2f5bc4b1622624c26091f1a89e4f921750f65f7b4fcf4c5d0959ac31/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/b4357df4-e0cb-4a63-850d-4a5d1d44e0d6
Behavior Graph:
Download SVG
%3 guuid=b2f9d120-1700-0000-a884-f229b30d0000 pid=3507 /usr/bin/sudo guuid=9bc03822-1700-0000-a884-f229b90d0000 pid=3513 /tmp/sample.bin guuid=b2f9d120-1700-0000-a884-f229b30d0000 pid=3507->guuid=9bc03822-1700-0000-a884-f229b90d0000 pid=3513 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/762ed15f-d286-45db-b629-4595c1f0dac5
Result
Threat name:
Mirai, Moobot
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/1863014
Signature
Antivirus / Scanner detection for submitted sample
Contains symbols with names commonly found in malware
Detected Mirai
Multi AV Scanner detection for submitted file
Sample deletes itself
Suricata IDS alerts for network traffic
Yara detected Mirai
Yara detected Moobot
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1863014 Sample: arm6.elf Startdate: 04/02/2026 Architecture: LINUX Score: 96 20 js.byxiaolin.dpdns.org 103.43.8.15, 55650, 57514 HKNEWCLOUD-AS-APHKNEWCLOUDTECHNOLOGYLIMITEDHK Hong Kong 2->20 22 169.254.169.254, 80 USDOSUS Reserved 2->22 24 4 other IPs or domains 2->24 26 Suricata IDS alerts for network traffic 2->26 28 Antivirus / Scanner detection for submitted sample 2->28 30 Detected Mirai 2->30 32 4 other signatures 2->32 7 arm6.elf 2->7         started        10 dash rm 2->10         started        12 dash rm 2->12         started        14 python3.8 dpkg 2->14         started        signatures3 process4 signatures5 34 Sample deletes itself 7->34 16 arm6.elf 7->16         started        18 arm6.elf 7->18         started        process6
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/21250f8b2f5bc4b1622624c26091f1a89e4f921750f65f7b4fcf4c5d0959ac31
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/21250f8b2f5bc4b1622624c26091f1a89e4f921750f65f7b4fcf4c5d0959ac31/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/21250f8b2f5bc4b1622624c26091f1a89e4f921750f65f7b4fcf4c5d0959ac31
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-02-04 05:41:19 UTC
File Type:
ELF32 Little (Exe)
AV detection:
23 of 36 (63.89%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=eesq7czplpclcyrgetbgbeprvcpe7eqxkd3f662pz5gf2ckzvqyq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:mirai
Link:
https://tria.ge/reports/260204-gdh5xsds5c/
Behaviour
Changes its process name
Deletes itself
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/21250f8b2f5bc4b1622624c26091f1a89e4f921750f65f7b4fcf4c5d0959ac31

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:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:Linux_Generic_Threat_8299c877
Create hunting rule
Author:Elastic Security
Rule name:MAL_ARM_LNX_Mirai_Mar13_2022
Create hunting rule
Author:Mehmet Ali Kerimoglu a.k.a. CYB3RMX
Description:Detects new ARM Mirai variant
Rule name:setsockopt
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
Rule name:SUSP_XORed_Mozilla_Oct19
Create hunting rule
Author:Florian Roth
Description:Detects suspicious single byte XORed keyword 'Mozilla/5.0' - it uses yara's XOR modifier and therefore cannot print the XOR key. You can use the CyberChef recipe linked in the reference field to brute force the used key.
Reference:https://gchq.github.io/CyberChef/#recipe=XOR_Brute_Force()
Rule name:SUSP_XORed_Mozilla_RID2DB4
Create hunting rule
Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
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 21250f8b2f5bc4b1622624c26091f1a89e4f921750f65f7b4fcf4c5d0959ac31

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3760099/
  
Delivery method
Distributed via web download

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