MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 231303ee910463f6d2cd645cac877d784d89a300537ec7c985d8d3326059075b. 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 5 File information Comments

SHA256 hash: 231303ee910463f6d2cd645cac877d784d89a300537ec7c985d8d3326059075b
SHA3-384 hash: 6512654f3fa988667529bcb00e80c174a504beed8f0806a4a6ab17ee0ce12e5c380812d5350cc26448c3c86d5b29c976
SHA1 hash: 6cc211d45e35317c66c02501f0ff53a9772f452e
MD5 hash: 13fa56b2693b0432e794617bcf4db6d3
humanhash: texas-arkansas-fillet-tango
File name:nklx86
Download: download sample
Signature Mirai
File size:79'028 bytes
First seen:2026-01-25 23:54:10 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:VNZE/pgn9HvRR8p2CoSjWQRj62YMKWg79fAHjiEgJTy1XgkyiEgFNQvvr7:V/Gm9PRRsHZjuMHg79IHGdyZQneeP
TLSH T11B736CC19243D8F5ED490278603AF337A532DA7801B8FDF7F3685A764469AA0718774E
telfhash t1f421cfba167b4deca7d07840f20e5b60ad0c977b146063e311b31828252fdc292bbc3d
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
No detections
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
not packed
Botnet:
unknown
Number of open files:
35
Number of processes launched:
3
Processes remaning?
false
Remote TCP ports scanned:
23
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Gathering data
Status:
terminated
Behavior Graph:
%3 guuid=718b3b52-1900-0000-66db-03c6730b0000 pid=2931 /usr/bin/sudo guuid=d966cc54-1900-0000-66db-03c6790b0000 pid=2937 /dev/shm/.systemd-journald delete-file net write-file guuid=718b3b52-1900-0000-66db-03c6730b0000 pid=2931->guuid=d966cc54-1900-0000-66db-03c6790b0000 pid=2937 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=d966cc54-1900-0000-66db-03c6790b0000 pid=2937->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=098dbb56-1900-0000-66db-03c67c0b0000 pid=2940 /dev/shm/.systemd-journald dns net send-data zombie guuid=d966cc54-1900-0000-66db-03c6790b0000 pid=2937->guuid=098dbb56-1900-0000-66db-03c67c0b0000 pid=2940 clone guuid=098dbb56-1900-0000-66db-03c67c0b0000 pid=2940->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 32B c42b7245-f894-51f6-b112-367ad1fbc99f 167.99.246.88:39691 guuid=098dbb56-1900-0000-66db-03c67c0b0000 pid=2940->c42b7245-f894-51f6-b112-367ad1fbc99f send: 77B guuid=43d9c656-1900-0000-66db-03c67d0b0000 pid=2941 /dev/shm/.systemd-journald dns net net-scan send-data guuid=098dbb56-1900-0000-66db-03c67c0b0000 pid=2940->guuid=43d9c656-1900-0000-66db-03c67d0b0000 pid=2941 clone guuid=43d9c656-1900-0000-66db-03c67d0b0000 pid=2941->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 28B f22fee75-ab34-540d-95fe-696883c6f4ad 130.12.180.64:80 guuid=43d9c656-1900-0000-66db-03c67d0b0000 pid=2941->f22fee75-ab34-540d-95fe-696883c6f4ad send: 20B guuid=43d9c656-1900-0000-66db-03c67d0b0000 pid=2941|send-data send-data to 3962 IP addresses review logs to see them all guuid=43d9c656-1900-0000-66db-03c67d0b0000 pid=2941->guuid=43d9c656-1900-0000-66db-03c67d0b0000 pid=2941|send-data send
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.evad
Score:
68 / 100
Signature
Connects to many IPs within the same subnet mask (likely port scanning)
Drops invisible ELF files
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample deletes itself
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1857327 Sample: nklx86.elf Startdate: 26/01/2026 Architecture: LINUX Score: 68 22 123.50.227.200 OCTOitaCableTelecomColtdJP Japan 2->22 24 123.50.227.207 OCTOitaCableTelecomColtdJP Japan 2->24 26 100 other IPs or domains 2->26 28 Malicious sample detected (through community Yara rule) 2->28 30 Multi AV Scanner detection for submitted file 2->30 32 Connects to many IPs within the same subnet mask (likely port scanning) 2->32 8 nklx86.elf .systemd-journald 2->8         started        12 dash rm 2->12         started        14 dash rm 2->14         started        signatures3 process4 file5 20 /dev/shm/.systemd-journald, ELF 8->20 dropped 34 Drops invisible ELF files 8->34 36 Sample deletes itself 8->36 16 .systemd-journald 8->16         started        signatures6 process7 process8 18 .systemd-journald 16->18         started       
Threat name:
Linux.Worm.Mirai
Status:
Malicious
First seen:
2026-01-25 23:54:39 UTC
File Type:
ELF32 Little (Exe)
AV detection:
10 of 36 (27.78%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  9/10
Tags:
discovery linux
Behaviour
Reads runtime system information
Writes file to shm directory
Enumerates running processes
Deletes itself
Executes dropped EXE
Contacts a large (119205) amount of remote hosts
Creates a large amount of network flows
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_389ee3e9
Author:Elastic Security
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 231303ee910463f6d2cd645cac877d784d89a300537ec7c985d8d3326059075b

(this sample)

  
Delivery method
Distributed via web download

Comments