MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef9c2461f1bbd6bbe50f6b50df6ca5e4a97cd4476edc5e86811c862009e747aa. 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 3 File information Comments

SHA256 hash: ef9c2461f1bbd6bbe50f6b50df6ca5e4a97cd4476edc5e86811c862009e747aa
SHA3-384 hash: 73ff9d6e86dab023a3af3a1ca077cbc10d0f760b25a00fc92cd44c0455f716800955afdcc756519b0157da723bc9f3c6
SHA1 hash: 9d9fcabaa0bdde5c6e72e8e1ed98b5eeb4cc33a6
MD5 hash: 811f005a3e7ca908029349cf527018f5
humanhash: bakerloo-cat-connecticut-east
File name:nabx86
Download: download sample
Signature Mirai
File size:54'512 bytes
First seen:2026-01-11 21:20:17 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:O9mmfekl9FYB8ykicx1YGF2M+kO996uTvmgZmcbJPj9xP+nyJXRRp:Cmmfh9FYBJWY4S996ub3ZmcbxPPJXRR
TLSH T1BD333AC59A83D4F6FC5D0A3118BBA3731673E53A2078EB92E7B4D931BC1E115A60678C
telfhash t1fc2147bb5f6b48fcb3d87840835963955a3ae6731d103aa540b29de837e19c180b883a
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 :
31
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
DNS request
Runs as daemon
Receives data from a server
Creating a file
Opens a port
Sends data to a server
Performs a bruteforce attack in the network
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
mirai
Result
Gathering data
Result
Threat name:
Detection:
malicious
Classification:
troj
Score:
76 / 100
Signature
Antivirus / Scanner detection for submitted sample
Connects to many IPs within the same subnet mask (likely port scanning)
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected Mirai
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1848597 Sample: nabx86.elf Startdate: 11/01/2026 Architecture: LINUX Score: 76 22 139.159.221.133, 23 HWCSNETHuaweiCloudServicedatacenterCN China 2->22 24 139.159.221.146, 23 HWCSNETHuaweiCloudServicedatacenterCN China 2->24 26 100 other IPs or domains 2->26 28 Malicious sample detected (through community Yara rule) 2->28 30 Antivirus / Scanner detection for submitted sample 2->30 32 Multi AV Scanner detection for submitted file 2->32 34 2 other signatures 2->34 8 nabx86.elf 2->8         started        10 dash rm 2->10         started        12 dash rm 2->12         started        signatures3 process4 process5 14 nabx86.elf 8->14         started        process6 16 nabx86.elf 14->16         started        18 nabx86.elf 14->18         started        20 nabx86.elf 14->20         started       
Threat name:
Linux.Backdoor.Mirai
Status:
Malicious
First seen:
2026-01-11 21:20:36 UTC
File Type:
ELF32 Little (Exe)
AV detection:
14 of 36 (38.89%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  9/10
Tags:
discovery linux
Behaviour
Reads runtime system information
Reads system network configuration
Enumerates active TCP sockets
Enumerates running processes
Renames itself
Contacts a large (25673) amount of remote hosts
Creates a large amount of network flows
Verdict:
Malicious
Tags:
trojan mirai Unix.Trojan.Mirai-7755770-0
YARA:
Linux_Trojan_Mirai_cc93863b Linux_Trojan_Mirai_8aa7b5d3
Please note that we are no longer able to provide a coverage score for Virus Total.

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_8aa7b5d3
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_cc93863b
Author:Elastic Security
Rule name:unixredflags3
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 ef9c2461f1bbd6bbe50f6b50df6ca5e4a97cd4476edc5e86811c862009e747aa

(this sample)

  
Delivery method
Distributed via web download

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