MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef2c1fb3021bd5fdd2a2a666dfea2129b6c40e7028a950899177c69eadf2c226. 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: 11


Intelligence 11 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ef2c1fb3021bd5fdd2a2a666dfea2129b6c40e7028a950899177c69eadf2c226
SHA3-384 hash: 324a47a71b436d6294a30ce81ca52906598d50ee46201f5fb6a3cc27a763cf5588a7c6966cca9b44dbf6203aa8844e17
SHA1 hash: 3190ef741256308fa4f53a4f05c699207515a641
MD5 hash: e51e5ad5ab2f56f44eeee5c3e6383107
humanhash: hot-mississippi-glucose-angel
File name:nabx86
Download: download sample
Signature Mirai
Create hunting rule
File size:34'524 bytes
First seen:2025-02-01 13:41:45 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:Tjha+4zu8iCkF3zA1NwZMj+nWZZAxPUmLii:TjhaBaXMHg0+nWZZiMmLii
TLSH T171F2298E8883E4F5EC110571B87B6F738A36D43A20E5EB86D75DD532DC42A01E2173AC
telfhash t1392131a27fb258f8f1d1bc4c4b2e3a136f32aa661a6254fd80f52ec233f1065e031845
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 :
92
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Unix.Trojan.Mirai-9970440-0
Create hunting rule

Unix.Trojan.Mirai-1
Create hunting rule

Verdict:
Clean
Score:
84.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=679e2502a9881a7a01c4e34blinux22vpnfull_triage
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:

Behaviour
Runs as daemon
Connection attempt
Receives data from a server
Opens a port
DNS request
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:
  0/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/679e24de503cb0637f9ba931/reports/e8157540-ab0c-4e9c-85c2-694e6188a864/overview
Result
Verdict:
UNKNOWN
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e4da9ab6-b8b7-42f2-aec9-d13f02cee20b
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.evad
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/1604449
Signature
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample deletes itself
Sends malformed DNS queries
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1604449 Sample: nabx86.elf Startdate: 01/02/2025 Architecture: LINUX Score: 68 19 serisbot.geek. [malformed] 2->19 21 105.175.141.186 unitel-ASAO Angola 2->21 23 101 other IPs or domains 2->23 25 Malicious sample detected (through community Yara rule) 2->25 27 Multi AV Scanner detection for submitted file 2->27 29 Machine Learning detection for sample 2->29 8 nabx86.elf 2->8         started        signatures3 31 Sends malformed DNS queries 19->31 process4 signatures5 33 Sample deletes itself 8->33 11 nabx86.elf 8->11         started        process6 process7 13 nabx86.elf 11->13         started        15 nabx86.elf 11->15         started        17 nabx86.elf 11->17         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/ef2c1fb3021bd5fdd2a2a666dfea2129b6c40e7028a950899177c69eadf2c226
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/ef2c1fb3021bd5fdd2a2a666dfea2129b6c40e7028a950899177c69eadf2c226/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-02-01 13:42:43 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=54wb7mycdpk73uvcuztn72rbfg3midtqfcuvbcmro7dj5lpsyita._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:botnet discovery linux rootkit
Link:
https://tria.ge/reports/250201-qzv62svjfs/
Behaviour
Creates a large amount of network flows
Loads a kernel module
Unexpected DNS network traffic destination
Contacts a large (6704) amount of remote hosts
Verdict:
Malicious
Tags:
trojan mirai Unix.Trojan.Mirai-9970440-0
YARA:
Linux_Trojan_Mirai_b14f4c5d Linux_Trojan_Mirai_88de437f Linux_Trojan_Mirai_cc93863b Linux_Trojan_Mirai_8aa7b5d3
Link:
https://app.threat.zone/submission/6893b73f-4e62-4ba0-8f41-aac25be35a7f
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/ef2c1fb3021bd5fdd2a2a666dfea2129b6c40e7028a950899177c69eadf2c226

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_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 ef2c1fb3021bd5fdd2a2a666dfea2129b6c40e7028a950899177c69eadf2c226

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3422912/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3422917/
  
URLhaus
https://urlhaus.abuse.ch/url/3424071/

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