MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 280f5a765fda31636290b242db98d4ca3cf1db4cbd37a16e63b2a7bd987bfba3. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 280f5a765fda31636290b242db98d4ca3cf1db4cbd37a16e63b2a7bd987bfba3
SHA3-384 hash: fe9fb3d00741af4e10b0c193537d7210abeab037c6cf51ba2f60383928495920bdebc17ecf69e1a10828f1f86f99b54b
SHA1 hash: 0fb3c6f4e0fcfa9bcc4cd68639e180c42aaa83f8
MD5 hash: bbb9812d17d16cb8b38844f1b4ee5375
humanhash: tennis-hotel-carbon-kentucky
File name:Josho.x86
Download: download sample
Signature Mirai
Create hunting rule
File size:49'752 bytes
First seen:2025-05-16 16:29:38 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:4LInPCqAAXJLE7cxtdG8NCqBNM7vk9YXPSP0Hoa:FCqxpE7cxtdG0Cqvsvk9sSMHz
TLSH T150233AC4B583F8F9EC15457C307B97729EB7F43A603AEDABC39994239815601AA072DC
telfhash t1f0118cbb1eb90cf8b3d1a888c72e56d54969ca3b157137a44362d42832c2ec2507dc38
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 :
76
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Unix.Dropper.Mirai-7135890-0
Create hunting rule

Unix.Dropper.Mirai-7135939-0
Create hunting rule

Unix.Dropper.Mirai-7136025-0
Create hunting rule

Unix.Trojan.Mirai-9835278-0
Create hunting rule

Unix.Trojan.Mirai-9835289-0
Create hunting rule

Unix.Trojan.Mirai-9857931-0
Create hunting rule

Unix.Trojan.Mirai-9866113-0
Create hunting rule

Verdict:
Malicious
Score:
70%
Link:
https://cyber-fortress.com/docs/result/index.php?id=682769a0e16384d6a7050783linux22vpnfull_triage
Tags:
shellcode backdoor overt
Result
Verdict:
Malware
Maliciousness:

Behaviour
Runs as daemon
Connection attempt
Receives data from a server
Opens a port
Sends data to a server
Substitutes an application name
Kills critical processes
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
masquerade
Link:
https://www.filescan.io/uploads/68276865dcf173f136a09592/reports/722a45eb-b9e4-4574-8960-02f4782b8991/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
not packed
Botnet:
unknown
Number of open files:
4
Number of processes launched:
7
Processes remaning?
true
Remote TCP ports scanned:
23
Full report:
https://elfdigest.com/brief/280f5a765fda31636290b242db98d4ca3cf1db4cbd37a16e63b2a7bd987bfba3
Behaviour
Process Renaming
Botnet C2s
TCP botnet C2(s):
type:Mirai 176.65.148.190:666
UDP botnet C2(s):
not identified
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f3da780f-5beb-46ac-a1a1-b74fd4f02480
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/1692218
Signature
Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1692218 Sample: Josho.x86.elf Startdate: 16/05/2025 Architecture: LINUX Score: 72 42 69.38.29.174 WINDSTREAMUS United States 2->42 44 164.57.90.132 WESTPUB-AUS United States 2->44 46 99 other IPs or domains 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 Antivirus / Scanner detection for submitted sample 2->50 52 Multi AV Scanner detection for submitted file 2->52 54 Yara detected Mirai 2->54 10 Josho.x86.elf 2->10         started        signatures3 process4 process5 12 Josho.x86.elf 10->12         started        14 Josho.x86.elf 10->14         started        16 Josho.x86.elf 10->16         started        process6 18 Josho.x86.elf 12->18         started        20 Josho.x86.elf 12->20         started        22 Josho.x86.elf 14->22         started        24 Josho.x86.elf 14->24         started        26 Josho.x86.elf 14->26         started        process7 28 Josho.x86.elf 18->28         started        30 Josho.x86.elf 18->30         started        32 Josho.x86.elf 18->32         started        34 Josho.x86.elf 22->34         started        36 Josho.x86.elf 22->36         started        process8 38 Josho.x86.elf 28->38         started        40 Josho.x86.elf 28->40         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/280f5a765fda31636290b242db98d4ca3cf1db4cbd37a16e63b2a7bd987bfba3
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/280f5a765fda31636290b242db98d4ca3cf1db4cbd37a16e63b2a7bd987bfba3/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-05-16 16:32:09 UTC
File Type:
ELF32 Little (Exe)
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=fahvu5s73iywgyuqwjbnxgguzi6pdw2mxu32c3tdwkt33gd37orq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:josho discovery linux rootkit
Link:
https://tria.ge/reports/250516-t1msvaxqx6/
Behaviour
Writes file to tmp directory
Loads a kernel module
Contacts a large (49033) amount of remote hosts
Creates a large amount of network flows
Verdict:
Malicious
Tags:
trojan mirai Unix.Dropper.Mirai-7135890-0
YARA:
Linux_Trojan_Mirai_b14f4c5d Linux_Trojan_Mirai_88de437f Linux_Trojan_Mirai_ae9d0fa6 Linux_Trojan_Mirai_cc93863b Linux_Trojan_Mirai_8aa7b5d3
Link:
https://app.threat.zone/submission/82c203d7-b4d2-49d4-aa00-f0360ce85ba8
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/280f5a765fda31636290b242db98d4ca3cf1db4cbd37a16e63b2a7bd987bfba3

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_Trojan_Mirai_88de437f
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_8aa7b5d3
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_ae9d0fa6
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_b14f4c5d
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_cc93863b
Create hunting rule
Author:Elastic Security

File information

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

Web download

Mirai

sh 098e8b333a0d025a3736faa9cc3062be7ea559a260c989352f991238192ee345

Mirai

elf 280f5a765fda31636290b242db98d4ca3cf1db4cbd37a16e63b2a7bd987bfba3

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3545043/
  
Delivery method
Distributed via web download
  
Dropped by
SHA256 098e8b333a0d025a3736faa9cc3062be7ea559a260c989352f991238192ee345
  
Dropped by
MD5 81e47a2a56dbe83cfb574cec738be193
  
URLhaus
https://urlhaus.abuse.ch/url/3545028/

Comments