MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d66a8eff096d72081b02ec2b4c2037e724da13305d024b7de4a4c3738c23b19e. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d66a8eff096d72081b02ec2b4c2037e724da13305d024b7de4a4c3738c23b19e
SHA3-384 hash: a00e9bd54022456f7cf407bfd3f8a4e2f4903d57fbb72b352374f3da0ff9f429bcc413c151213cd66280393ad4b6c7b2
SHA1 hash: 8a3d315684a942ea621a3dc02104045a385ccd3c
MD5 hash: 35653bf48b20d7d0bca8eb229867303b
humanhash: stairway-illinois-purple-kentucky
File name:yakuza.x86
Download: download sample
Signature Mirai
Create hunting rule
File size:25'880 bytes
First seen:2026-04-03 17:39:13 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 384:MgjRX74+nsHnozt48N6ASt7i36htH9vSY3GQODlyQn2fBpMBeq5/GDtygvYKS:tgnK56AS83+SIG0QsDi/GDtygQKS
TLSH T1E6C2F13B849F19A1CE0487BC25A8A94CE6C479AE7F1ADD80812D7D1F1C7326F0B03C96
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 UPX
File size (compressed) :25'880 bytes
File size (de-compressed) :62'560 bytes
Format:linux/i386
Unpacked file: 4e3b462c48cd70da96ff71ccbc477e51dfdf6c2c9caccc88af24f8ffc3022832

Intelligence

File Origin
# of uploads :
1
# of downloads :
48
Origin country :
DE DE
Vendor Threat Intelligence
Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Runs as daemon
Receives data from a server
Opens a port
Sends data to a server
Connection attempt
Substitutes an application name
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
masquerade obfuscated packed threat upx
Link:
https://www.filescan.io/uploads/69cffb45e2df9aa488c556f5/reports/1ae764b1-648b-4967-9b04-797c6c4c92f9/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
UPX
Botnet:
176.65.139.102/bins
Number of open files:
1
Number of processes launched:
5
Processes remaning?
true
Remote TCP ports scanned:
37215
Full report:
https://elfdigest.com/brief/d66a8eff096d72081b02ec2b4c2037e724da13305d024b7de4a4c3738c23b19e
Behaviour
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-04-03T14:57:00Z UTC
Last seen:
2026-04-05T12:14:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.kv HEUR:Backdoor.Linux.Mirai.h HEUR:Backdoor.Linux.Mirai.cw HEUR:Backdoor.Linux.Mirai.b
Link:
https://opentip.kaspersky.com/d66a8eff096d72081b02ec2b4c2037e724da13305d024b7de4a4c3738c23b19e/results?tab=lookup
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/11793b0b-99cd-4130-85b7-b0dbd96f6ed8
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.evad
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/1893307
Signature
Connects to many ports of the same IP (likely port scanning)
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Uses known network protocols on non-standard ports
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1893307 Sample: yakuza.x86.elf Startdate: 03/04/2026 Architecture: LINUX Score: 68 18 156.158.51.151, 37215 airtel-tz-asTZ Tanzania United Republic of 2->18 20 102.88.122.198 ZAINUGASUG Nigeria 2->20 22 98 other IPs or domains 2->22 24 Malicious sample detected (through community Yara rule) 2->24 26 Multi AV Scanner detection for submitted file 2->26 28 Connects to many ports of the same IP (likely port scanning) 2->28 30 2 other signatures 2->30 8 yakuza.x86.elf 2->8         started        signatures3 process4 process5 10 yakuza.x86.elf 8->10         started        process6 12 yakuza.x86.elf 10->12         started        14 yakuza.x86.elf 10->14         started        16 yakuza.x86.elf 10->16         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/d66a8eff096d72081b02ec2b4c2037e724da13305d024b7de4a4c3738c23b19e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d66a8eff096d72081b02ec2b4c2037e724da13305d024b7de4a4c3738c23b19e/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/d66a8eff096d72081b02ec2b4c2037e724da13305d024b7de4a4c3738c23b19e
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-04-03 17:40:21 UTC
File Type:
ELF32 Little (Exe)
AV detection:
17 of 36 (47.22%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=2zvi57yjnvzaqgyc5qvuyibx44snuezqlubew7peutbxhdbdwgpa._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet credential_access defense_evasion discovery linux upx
Link:
https://tria.ge/reports/260403-v8fj6sbx4v/
Behaviour
Reads runtime system information
Changes its process name
Reads system network configuration
Reads process memory
Enumerates active TCP sockets
Enumerates running processes
Modifies Watchdog functionality
Contacts a large (358850) amount of remote hosts
Creates a large amount of network flows
Mirai
Mirai family
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/d66a8eff096d72081b02ec2b4c2037e724da13305d024b7de4a4c3738c23b19e

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_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
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:UPXProtectorv10x2
Create hunting rule
Author:malware-lu
Rule name:upx_packed_elf_v1
Create hunting rule
Author:RandomMalware

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Mirai

elf d66a8eff096d72081b02ec2b4c2037e724da13305d024b7de4a4c3738c23b19e

(this sample)

Mirai

elf 4e3b462c48cd70da96ff71ccbc477e51dfdf6c2c9caccc88af24f8ffc3022832

  
URLhaus
https://urlhaus.abuse.ch/url/3810809/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 4e3b462c48cd70da96ff71ccbc477e51dfdf6c2c9caccc88af24f8ffc3022832
  
Dropping
MD5 366c878a160137ed36678981bab4105d

Comments