MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 40feaa57df11f6b0cbebfdce14123fdffe0ca1943a7acd56589d6665d20e8d53. 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 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 40feaa57df11f6b0cbebfdce14123fdffe0ca1943a7acd56589d6665d20e8d53
SHA3-384 hash: ecd7b707305e253923924d21bd1274ae3a57fe3785553f94b7ca59f695ccc13f94a2113cc3d35c4557fa5e3911463ff8
SHA1 hash: 4986799fd0330ae1ee4fef16722967913079630e
MD5 hash: 8c72a5551a6b88acdefcd961fbad2d7a
humanhash: snake-william-burger-shade
File name:windy.mips
Download: download sample
Signature Mirai
Create hunting rule
File size:117'968 bytes
First seen:2026-05-18 07:37:45 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:SEkWiTLiZECcpHOWWJDmmn5Pd1Oe4datc9BWZ6nak7+TeVedVPneQBZN01C6L:gni50poFEa69BWO7+Te0dVPZ01C6L
TLSH T152B3E84E6F318F7DFBA8C23447B39A21975923D227E2C685D19CDA011E7028E645FBB4
telfhash t143118b184a3823e097751d9d6bedffb2e59170db4a255d338c00e9ae9b6dd418d01c1c
Magika elf
Reporter abuse_ch
Tags:elf mirai upx-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 a9dd40f43bfe6199d3fe6b6c607b1bd50ed811b09918cf00a74bfb9980a46414
File size (compressed) :43'280 bytes
File size (de-compressed) :117'968 bytes
Format:linux/mips
Packed file: a9dd40f43bfe6199d3fe6b6c607b1bd50ed811b09918cf00a74bfb9980a46414

Intelligence

File Origin
# of uploads :
1
# of downloads :
68
Origin country :
NL NL
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/fead0b5e-16d9-4c58-a49c-4de68e4b7fc7/
Detection(s):
Sanesecurity.Malware.30435.LC.UNOFFICIAL
Create hunting rule

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

Unix.Dropper.Mirai-7135897-0
Create hunting rule

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.Trojan.Mirai-8025795-0
Create hunting rule

Unix.Trojan.Mirai-9441505-0
Create hunting rule

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

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

Unix.Trojan.Mirai-10059006-0
Create hunting rule

Unix.Trojan.Mirai-10059216-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Opens a port
DNS request
Runs as daemon
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
masquerade
Link:
https://www.filescan.io/uploads/6a0ac1fe861ee596e63aa854/reports/f4af81b6-f8ca-4570-9c17-06f1ceef40bd/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
mips
Packer:
not packed
Botnet:
unknown
Number of open files:
37
Number of processes launched:
6
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/40feaa57df11f6b0cbebfdce14123fdffe0ca1943a7acd56589d6665d20e8d53
Behaviour
Information Gathering
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Gathering data
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/10dffae0-b335-4d5f-86b8-ad419112494f
Behavior Graph:
Download SVG
%3 guuid=2d727163-1a00-0000-730d-b017720a0000 pid=2674 /usr/bin/sudo guuid=30eb8365-1a00-0000-730d-b017780a0000 pid=2680 /tmp/sample.bin guuid=2d727163-1a00-0000-730d-b017720a0000 pid=2674->guuid=30eb8365-1a00-0000-730d-b017780a0000 pid=2680 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/3f6dfb87-d423-4fd5-b190-405cedfbbb9d
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/40feaa57df11f6b0cbebfdce14123fdffe0ca1943a7acd56589d6665d20e8d53
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/40feaa57df11f6b0cbebfdce14123fdffe0ca1943a7acd56589d6665d20e8d53/
Gathering data
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=id7kuv67ch3lbs7l7xhbier7377azimuhj5m2vsytvtgluqorvjq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet defense_evasion discovery
Link:
https://tria.ge/reports/260518-jgsjwag15s/
Behaviour
Reads runtime system information
System Network Configuration Discovery
Enumerates running processes
Writes file to system bin folder
Modifies Watchdog functionality
Malware Config
C2 Extraction:
newenewmew.duckdns.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/40feaa57df11f6b0cbebfdce14123fdffe0ca1943a7acd56589d6665d20e8d53

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:Mirai_Botnet_Malware
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects Mirai Botnet Malware
Reference:Internal Research
Rule name:Mirai_Botnet_Malware_RID2EF6
Create hunting rule
Author:Florian Roth
Description:Detects Mirai Botnet Malware
Reference:Internal Research
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 a9dd40f43bfe6199d3fe6b6c607b1bd50ed811b09918cf00a74bfb9980a46414

Mirai

elf 40feaa57df11f6b0cbebfdce14123fdffe0ca1943a7acd56589d6665d20e8d53

(this sample)

  
Dropped by
SHA256 a9dd40f43bfe6199d3fe6b6c607b1bd50ed811b09918cf00a74bfb9980a46414
  
URLhaus
https://urlhaus.abuse.ch/url/3849252/
  
Delivery method
Distributed via web download
  
Dropped by
MD5 b2db5346a7ec22e785bc9b8b80117c37
  
URLhaus
https://urlhaus.abuse.ch/url/3849446/

Comments