MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 21c87ada1f008a5aac7afb4016d1e605e14b14fa95aade71ea6e30ff1589fdf9. 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: 10


Intelligence 10 IOCs YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 21c87ada1f008a5aac7afb4016d1e605e14b14fa95aade71ea6e30ff1589fdf9
SHA3-384 hash: 1db6d98da4d5542ff911cbde7e18bd6ee46f445caba34417c81c48e44a166016ad6141574e3a2bc5593b8631b7b46cd0
SHA1 hash: 9b488c8878caa12b890927b2c7b128a6ee6d4776
MD5 hash: 9f1641093f13fa842f0e0f7e8a9c547b
humanhash: massachusetts-floor-steak-stairway
File name:main_x86
Download: download sample
Signature Mirai
Create hunting rule
File size:96'648 bytes
First seen:2025-08-15 06:56:54 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:/8vzxhBM/MSJsFdWZcToVWwZj6Tj2oWyk2USdaiC:/8vjB23JETT+jWTjPW+BRC
TLSH T1B5936CC4E783C0F5ED5705B2913BE33A5332E43A501AEB46E369ED32DC51950EA2A76C
telfhash t13251d9bb1e7a08ecb7d09401c71e6ba2255ee77b156036b645739c6423fadc240fac39
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 :
32
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Unix.Trojan.Mirai-10028515-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Locks files
Creating a file
Runs as daemon
Creating a file in the %temp% directory
Sends data to a server
Connection attempt
Traces processes
Substitutes an application name
Deleting of the original file
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
bash lolbin obfuscated remote
Link:
https://www.filescan.io/uploads/689eda649ef4d2ff7cfe9703/reports/8d2245d1-7753-4a38-a566-e17941978cf6/overview
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/93bcda03-de15-4a58-88c0-9e520e27a04c
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/1757663
Signature
Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample deletes itself
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1757663 Sample: main_x86.elf Startdate: 15/08/2025 Architecture: LINUX Score: 68 14 Malicious sample detected (through community Yara rule) 2->14 16 Antivirus / Scanner detection for submitted sample 2->16 18 Multi AV Scanner detection for submitted file 2->18 7 main_x86.elf 2->7         started        process3 signatures4 20 Sample deletes itself 7->20 10 main_x86.elf 7->10         started        process5 process6 12 main_x86.elf 10->12         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/21c87ada1f008a5aac7afb4016d1e605e14b14fa95aade71ea6e30ff1589fdf9
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/21c87ada1f008a5aac7afb4016d1e605e14b14fa95aade71ea6e30ff1589fdf9/
Verdict:
Malicious
Threat:
HEUR:Backdoor.Linux.Mirai
Link:
https://tip.neiki.dev/file/21c87ada1f008a5aac7afb4016d1e605e14b14fa95aade71ea6e30ff1589fdf9
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-08-15 06:56:00 UTC
File Type:
ELF32 Little (Exe)
AV detection:
16 of 23 (69.57%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ehehvwq7acffvld27nabnupgaxquwfh2swvn44pknyyp6fmj7x4q._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
linux rootkit
Link:
https://tria.ge/reports/250815-hq83jsvjs6/
Behaviour
Loads a kernel module
Verdict:
Malicious
Tags:
trojan mirai Unix.Trojan.Mirai-10028515-0
YARA:
Linux_Trojan_Mirai_b14f4c5d Linux_Trojan_Mirai_5f7b67b8 Linux_Trojan_Mirai_88de437f Linux_Trojan_Mirai_389ee3e9 Linux_Trojan_Mirai_cc93863b Linux_Trojan_Mirai_8aa7b5d3
Link:
https://app.threat.zone/submission/40e5bf15-1e87-47ea-b80e-f1511be79ecf
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/21c87ada1f008a5aac7afb4016d1e605e14b14fa95aade71ea6e30ff1589fdf9

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:Linux_Trojan_Mirai_389ee3e9
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_5f7b67b8
Create hunting rule
Author:Elastic Security
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_b14f4c5d
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_cc93863b
Create hunting rule
Author:Elastic Security
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 21c87ada1f008a5aac7afb4016d1e605e14b14fa95aade71ea6e30ff1589fdf9

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3603949/
  
Delivery method
Distributed via web download

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