MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 40243b6a611a1d3e7f9b0de8bb2411e4f6a5b773adec2208ebb830fed5201ac0. 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: 13


Intelligence 13 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 40243b6a611a1d3e7f9b0de8bb2411e4f6a5b773adec2208ebb830fed5201ac0
SHA3-384 hash: 290b90a9d8bcc829cbc368b8f81c3d6daa831c7d5052bd4a8d9c085ebcac9b3e7cb0a4513ce06b0e7a6c6d66e086424e
SHA1 hash: 4c8225243712272ec4761b29e5db5d1de50a6007
MD5 hash: 63629de9d7515f39f3e18f5659b9519d
humanhash: july-johnny-yankee-potato
File name:z0r0.mips
Download: download sample
Signature Mirai
Create hunting rule
File size:101'668 bytes
First seen:2025-03-02 16:46:30 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:lKo81kL/lIqLUxGcBwBJ4/5SCxZ/VnczZaExhgTS4D8RpVeAp82naO:lK71OLUGByznczXxhgTS4D8Rpr82naO
TLSH T1D3A3C70D7E228F7DFBA9823547F78A21975833962BE1D585D1ACE6001E3028F741FBA5
telfhash t1a1119d084e3813f48b751cdd2addfeb1e6a170df4a211e338d04e96c9a2dd428e00c1c
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
90
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.Trojan.Mirai-9945193-0
Create hunting rule

Unix.Trojan.Mirai-9946826-0
Create hunting rule

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

Unix.Trojan.Mirai-10028946-0
Create hunting rule

Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67c48b04c8d04e92a4be6401
Tags:
ransomware mirai
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Connection attempt
DNS request
Runs as daemon
Creates directories
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:
  2.5/10
Confidence:
100%
Tags:
bash lolbin masquerade remote
Link:
https://www.filescan.io/uploads/67c48b973c5f644bd93efcca/reports/67b66111-4ed5-4abf-8d11-02286d382347/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
mips
Packer:
not packed
Botnet:
unknown
Number of open files:
9
Number of processes launched:
10
Processes remaning?
true
Remote TCP ports scanned:
23
Full report:
https://elfdigest.com/brief/40243b6a611a1d3e7f9b0de8bb2411e4f6a5b773adec2208ebb830fed5201ac0
Behaviour
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Verdict:
MALICIOUS
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/04e82c90-2afb-475e-ac16-9b79ea10c656
Result
Threat name:
Mirai, Okiru
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/1627522
Signature
Antivirus / Scanner detection for submitted sample
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: 1627522 Sample: z0r0.mips.elf Startdate: 02/03/2025 Architecture: LINUX Score: 76 23 daisy.ubuntu.com 2->23 25 Antivirus / Scanner detection for submitted sample 2->25 27 Multi AV Scanner detection for submitted file 2->27 29 Yara detected Okiru 2->29 31 Yara detected Mirai 2->31 8 z0r0.mips.elf 2->8         started        signatures3 process4 signatures5 33 Sample deletes itself 8->33 11 z0r0.mips.elf sh 8->11         started        13 z0r0.mips.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.mips.elf 13->21         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/40243b6a611a1d3e7f9b0de8bb2411e4f6a5b773adec2208ebb830fed5201ac0
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/40243b6a611a1d3e7f9b0de8bb2411e4f6a5b773adec2208ebb830fed5201ac0/
Threat name:
Linux.Trojan.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-02-26 17:09:54 UTC
File Type:
ELF32 Big (Exe)
AV detection:
22 of 38 (57.89%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=iasdw2tbdiot4743bxulwjar4t3kln3tvxwcechlxayp5vjadlaa._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:unstable defense_evasion discovery
Link:
https://tria.ge/reports/250302-vakq8syqz2/
Behaviour
Reads runtime system information
System Network Configuration Discovery
Changes its process name
Reads system network configuration
Enumerates active TCP sockets
Writes file to system bin folder
File and Directory Permissions Modification
Deletes itself
Modifies Watchdog functionality
Contacts a large (112158) amount of remote hosts
Creates a large amount of network flows
Malware Config
C2 Extraction:
scan.bigboats.icu
Verdict:
Malicious
Tags:
Unix.Dropper.Mirai-7135870-0
YARA:
n/a
Link:
https://app.threat.zone/submission/af2380ba-73fe-4872-bd14-c4b44d41f6d7
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Mirai
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/40243b6a611a1d3e7f9b0de8bb2411e4f6a5b773adec2208ebb830fed5201ac0

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: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 40243b6a611a1d3e7f9b0de8bb2411e4f6a5b773adec2208ebb830fed5201ac0

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3463175/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3463202/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh

Comments