MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bf237640d3c51687df288217abc2b25d7d43ea81780323b94a39b000f4bcd3cf. 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: 7


Intelligence 7 IOCs YARA 7 File information Comments
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SHA256 hash: bf237640d3c51687df288217abc2b25d7d43ea81780323b94a39b000f4bcd3cf
SHA3-384 hash: f89e60cd51693dce2461c720601c24527442cf18776436c5c389e176a38a70bed7c9b62ae79b27db49422b38c66b9b8c
SHA1 hash: 714ee53eddb979fd0fa7f70d6f254bda792c6483
MD5 hash: 0de203aba4f2c2749271344e1934f3fb
humanhash: crazy-two-purple-nebraska
File name:nz.sh4
Download: download sample
Signature Mirai
Create hunting rule
File size:80'380 bytes
First seen:2026-07-21 05:18:21 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:8/D/lVA7lbCyOyo+gKoJ/U74svhQC96I9hIXG:879VU8yOyo+noylvhQNGaXG
TLSH T1B3739E23C8A61998C25C42B8B170FF3A6773D91056536FF6059ACA7AA047EDCF8093F5
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 :
74
Origin country :
DE DE
Vendor Threat Intelligence
Malware configuration found for:
Mirai
Details
Link:
https://research.acce.ciphertechsolutions.com/results/b513ffb4-f44b-4ad2-8a1d-40ab5900be35/
Detection(s):
Sanesecurity.Malware.30435.LC.UNOFFICIAL
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Unix.Trojan.Mirai-7100807-0
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Unix.Dropper.Mirai-7135897-0
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Unix.Dropper.Mirai-7135901-0
Create hunting rule

Unix.Dropper.Mirai-7135909-0
Create hunting rule

Unix.Trojan.Mirai-7135916-0
Create hunting rule

Unix.Dropper.Mirai-7135918-0
Create hunting rule

Unix.Dropper.Mirai-7135954-0
Create hunting rule

Unix.Dropper.Mirai-7136016-0
Create hunting rule

Unix.Dropper.Mirai-7136028-0
Create hunting rule

Unix.Dropper.Mirai-7136288-0
Create hunting rule

Unix.Trojan.Mirai-7138377-0
Create hunting rule

Unix.Trojan.Mirai-7674518-0
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Unix.Trojan.Mirai-8025795-0
Create hunting rule

Unix.Trojan.Mirai-9441505-0
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Unix.Trojan.Generic-9910198-0
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Unix.Trojan.Generic-9910199-0
Create hunting rule

Unix.Dropper.Mirai-10007027-0
Create hunting rule

Unix.Trojan.Mirai-10009361-0
Create hunting rule

Unix.Trojan.Mirai-10042712-0
Create hunting rule

Unix.Trojan.Mirai-10059006-0
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Unix.Trojan.Mirai-10059216-0
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Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
masquerade
Link:
https://www.filescan.io/uploads/6a5f015430871cd57e0ff380/reports/201ed26e-f2e2-40b9-a2bf-e73771ef87ea/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-07-21T02:29:00Z UTC
Last seen:
2026-07-21T08:36:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.r HEUR:Backdoor.Linux.Mirai.cw HEUR:Backdoor.Linux.Mirai.b HEUR:Backdoor.Linux.Gafgyt.bl HEUR:Backdoor.Linux.Gafgyt.bj
Link:
https://opentip.kaspersky.com/bf237640d3c51687df288217abc2b25d7d43ea81780323b94a39b000f4bcd3cf/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/8891ae41-a172-485f-84dd-061a8570e344
Behavior Graph:
Download SVG
%3 guuid=ac47fa2c-1a00-0000-7052-9270e8070000 pid=2024 /usr/bin/sudo guuid=c016e42e-1a00-0000-7052-9270f1070000 pid=2033 /tmp/sample.bin guuid=ac47fa2c-1a00-0000-7052-9270e8070000 pid=2024->guuid=c016e42e-1a00-0000-7052-9270f1070000 pid=2033 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/c688f463-cb17-42f6-acaa-3130f92f2e89
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/bf237640d3c51687df288217abc2b25d7d43ea81780323b94a39b000f4bcd3cf
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/bf237640d3c51687df288217abc2b25d7d43ea81780323b94a39b000f4bcd3cf/
Threat name:
Linux.Worm.Mirai
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Status:
Malicious
First seen:
2026-07-21 05:19:02 UTC
File Type:
ELF32 Little (Exe)
AV detection:
22 of 36 (61.11%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=x4rxmqgtyulipxziqil2xqvslv6uh2ubpabshokkhgyab5f42phq._file
Result
Malware family:
mirai
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Score:
  10/10
Tags:
family:mirai botnet linux
Link:
https://tria.ge/reports/260721-fzpzxsfw8m/
Malware Config
C2 Extraction:
jkqhdbbbqwiujkaz.hopto.org
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/bf237640d3c51687df288217abc2b25d7d43ea81780323b94a39b000f4bcd3cf

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_Mirai
Create hunting rule
Author:NDA0E
Description:Detects multiple Mirai variants
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:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
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: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: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 bf237640d3c51687df288217abc2b25d7d43ea81780323b94a39b000f4bcd3cf

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3887338/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3878182/

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