MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b239971ce019997f089bb1c8c21b8ab2abafddd0b30bc9f2cd9cc882791ec425. 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: 14


Intelligence 14 IOCs YARA 12 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b239971ce019997f089bb1c8c21b8ab2abafddd0b30bc9f2cd9cc882791ec425
SHA3-384 hash: bff17984bdae04660c8f798128c6f103bd6d21579bc8719fe6b8dc5147fffc78ff1920710fb365f3da9b5c14ac75fed5
SHA1 hash: 42079a21ddd32ce429a423494fd3d44f15d7a0db
MD5 hash: 8f6cee741995595692a997af6297550e
humanhash: carbon-asparagus-mike-nitrogen
File name:z0r0.i686
Download: download sample
Signature Mirai
Create hunting rule
File size:75'056 bytes
First seen:2025-03-02 16:46:27 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:7X9FIQt86IgOB8YIjsXcqZlZ1gcCnXc9WmqiUhzm8R7dlsQGK8:L9KQu5gOB8ZRqZlZcpViUhzjRBlhS
TLSH T199731884B98780F5DA575930A0EBF73FC730D66900619A6EEF8D9E35DB23A01921728D
telfhash t12031b9fa5ebe19d8bbe49854821e5f21395d673b251036b242b3dd3022a7d42507bc3d
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 :
93
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.30455.LC.BadVar.UNOFFICIAL
Create hunting rule

Unix.Dropper.Mirai-7135870-0
Create hunting rule

Unix.Dropper.Mirai-7135906-0
Create hunting rule

Unix.Dropper.Mirai-7135966-0
Create hunting rule

Unix.Dropper.Mirai-7135979-0
Create hunting rule

Unix.Trojan.Mirai-9935718-0
Create hunting rule

Unix.Dropper.Mirai-10008433-0
Create hunting rule

Unix.Trojan.Mirai-10017298-0
Create hunting rule

Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67c48bf9c668b65489be6886linux22vpnfull_triage
Tags:
ransomware shellcode overt
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Connection attempt
DNS request
Runs as daemon
Creates directories
Kills processes
Opens a port
Receives data from a server
Sends data to a server
Substitutes an application name
Performs a bruteforce attack in the network
Deleting of the original file
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
lolbin masquerade remote
Link:
https://www.filescan.io/uploads/67c48b943c5f644bd93efcc2/reports/5096e0f6-f6cf-4eae-9a9b-f96cd6586e5f/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
not packed
Botnet:
unknown
Number of open files:
3
Number of processes launched:
6
Processes remaning?
true
Remote TCP ports scanned:
23
Full report:
https://elfdigest.com/brief/b239971ce019997f089bb1c8c21b8ab2abafddd0b30bc9f2cd9cc882791ec425
Behaviour
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Verdict:
MALICIOUS
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/2a7b7933-0491-430a-bcb1-4ea67057652c
Result
Threat name:
Mirai, Okiru
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/1627525
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample deletes itself
Yara detected Mirai
Yara detected Okiru
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1627525 Sample: z0r0.i686.elf Startdate: 02/03/2025 Architecture: LINUX Score: 76 29 155.1.127.183 ZAMRENZM United States 2->29 31 196.150.175.123 Vodafone-EG Egypt 2->31 33 99 other IPs or domains 2->33 35 Malicious sample detected (through community Yara rule) 2->35 37 Multi AV Scanner detection for submitted file 2->37 39 Yara detected Okiru 2->39 41 Yara detected Mirai 2->41 8 z0r0.i686.elf 2->8         started        signatures3 process4 signatures5 43 Sample deletes itself 8->43 11 z0r0.i686.elf sh 8->11         started        13 z0r0.i686.elf 8->13         started        process6 process7 15 sh rm 11->15         started        17 sh mkdir 11->17         started        19 sh mv 11->19         started        21 z0r0.i686.elf 13->21         started        23 z0r0.i686.elf 13->23         started        25 z0r0.i686.elf 13->25         started        27 z0r0.i686.elf 13->27         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b239971ce019997f089bb1c8c21b8ab2abafddd0b30bc9f2cd9cc882791ec425
Detection:
mirai
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Link:
https://mwdb.cert.pl/sample/b239971ce019997f089bb1c8c21b8ab2abafddd0b30bc9f2cd9cc882791ec425/
Threat name:
Linux.Trojan.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-02-26 17:09:54 UTC
File Type:
ELF32 Little (Exe)
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wi4zohhadgmx6ce3whemeg4kwkv27xoqwmf4t4wntteie6i6yqsq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai defense_evasion discovery linux
Link:
https://tria.ge/reports/250302-vakfgayqy7/
Behaviour
Reads runtime system information
Changes its process name
Reads system network configuration
Enumerates active TCP sockets
Writes file to system bin folder
Deletes itself
Modifies Watchdog functionality
Contacts a large (113387) amount of remote hosts
Creates a large amount of network flows
Malware Config
C2 Extraction:
scan.bigboats.icu
Verdict:
Malicious
Tags:
trojan mirai Unix.Dropper.Mirai-7135870-0
YARA:
Linux_Trojan_Mirai_268aac0b Linux_Trojan_Mirai_0cb1699c Linux_Trojan_Mirai_70ef58f1 Linux_Trojan_Mirai_3a85a418 Linux_Trojan_Mirai_2e3f67a9 Linux_Trojan_Mirai_0d73971c Linux_Trojan_Mirai_88de437f Linux_Trojan_Mirai_cc93863b
Link:
https://app.threat.zone/submission/4461a400-83cd-471d-8c55-fcf38c5d44ce
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b239971ce019997f089bb1c8c21b8ab2abafddd0b30bc9f2cd9cc882791ec425

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_Threat_3bcc1630
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_0cb1699c
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_0d73971c
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_268aac0b
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_2e3f67a9
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_3a85a418
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_70ef58f1
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_88de437f
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_cc93863b
Create hunting rule
Author:Elastic Security
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 b239971ce019997f089bb1c8c21b8ab2abafddd0b30bc9f2cd9cc882791ec425

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3463182/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3463203/

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