MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 39476b310c31c78e76d3a0d7819ed73bf7c7d8c9e56461b108b34f76752cddfd. 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 4 File information Comments

SHA256 hash: 39476b310c31c78e76d3a0d7819ed73bf7c7d8c9e56461b108b34f76752cddfd
SHA3-384 hash: b1455d73a0623e8bf097c9de5b4aa4a20b5f8f168b151521c8a6c1d75aeafd25678f0185b4f28cc282b4b19cb7cd6678
SHA1 hash: 38644dca8070276186c673b1a1c0fd5cfdfc5333
MD5 hash: 5904d0a7ee11e1148937e6b0192c068d
humanhash: friend-carolina-kentucky-xray
File name:nklx86
Download: download sample
Signature Mirai
File size:78'836 bytes
First seen:2026-01-11 19:23:39 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:7/e19rgBhXkYEHovvA+SaRk2ncIWibjbtngPXDbgXiTKkAMkb3qaAPRR:72DrgBhUbSR5RHcri3pyXDbgEr9C6
TLSH T15A736CC19243D8F6E8690531A0B7F337A172E97501B8FEF3F7949672A421660B18F64E
telfhash t13d21f1fa16760ce4a7d01c12b30e1aa02d5aab6f186432a315b31820767ec8751fbd39
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 :
54
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
Substitutes an application name
Performs a bruteforce attack in the network
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
mirai
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2026-01-11T16:31:00Z UTC
Last seen:
2026-01-11T18:53:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.gen
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: 1848559 Sample: nklx86.elf Startdate: 11/01/2026 Architecture: LINUX Score: 76 18 122.9.219.111, 23 UNICOM-GUIANChinaUnicomIPnetworkCN China 2->18 20 122.9.219.113, 23 UNICOM-GUIANChinaUnicomIPnetworkCN China 2->20 22 100 other IPs or domains 2->22 24 Malicious sample detected (through community Yara rule) 2->24 26 Antivirus / Scanner detection for submitted sample 2->26 28 Multi AV Scanner detection for submitted file 2->28 30 2 other signatures 2->30 8 nklx86.elf 2->8         started        10 dash rm 2->10         started        12 dash rm 2->12         started        signatures3 process4 process5 14 nklx86.elf 8->14         started        process6 16 nklx86.elf 14->16         started       
Threat name:
Linux.Backdoor.Mirai
Status:
Malicious
First seen:
2026-01-11 19:24:26 UTC
File Type:
ELF32 Little (Exe)
AV detection:
12 of 24 (50.00%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  9/10
Tags:
discovery linux
Behaviour
Changes its process name
Renames itself
Contacts a large (44585) 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_fa3ad9d0 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:Linux_Trojan_Mirai_fa3ad9d0
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 39476b310c31c78e76d3a0d7819ed73bf7c7d8c9e56461b108b34f76752cddfd

(this sample)

  
Delivery method
Distributed via web download

Comments