MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 57fb6190b3f7b59851c9e011b5e2387f3b1b69aadb7caf712ff851140f1bb278. 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: 8


Intelligence 8 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 57fb6190b3f7b59851c9e011b5e2387f3b1b69aadb7caf712ff851140f1bb278
SHA3-384 hash: 8a884b70bf3d35d73510f4c21dbe96cccac14a0d842025cbdebab4403faed162bda96419972b1a7a617182e7af5da587
SHA1 hash: 437a93d92864148990120e716df957f652063054
MD5 hash: 43fab24a303b047b951989a600210154
humanhash: don-lima-nevada-four
File name:nklarm5
Download: download sample
Signature Mirai
Create hunting rule
File size:88'320 bytes
First seen:2026-01-26 00:26:51 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:10K6pd1mS5cpPBarJ38T43cbok51en2yBkEYUtC5leXzf1eX:1t6prmJJ4rDsb51enMEQ5l4z9eX
TLSH T1C583298ABCC5C702C5F061B6BB1F958E37164368E3E6B1478D19AF29634F8670E3B251
telfhash t11f512537ff680eac27e84565919da02a57fd355d6b2438579a1c9b0f8903083f02e427
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 :
67
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
Unix.Trojan.Mirai-9885259-0
Create hunting rule

Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
mirai rust
Link:
https://www.filescan.io/uploads/6976b4ee55805a763ff57d72/reports/2eeb70ad-b846-42ae-a995-6b88ad530039/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
not packed
Botnet:
unknown
Number of open files:
33
Number of processes launched:
2
Processes remaning?
false
Remote TCP ports scanned:
23
Full report:
https://elfdigest.com/brief/57fb6190b3f7b59851c9e011b5e2387f3b1b69aadb7caf712ff851140f1bb278
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Gathering data
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/153cbc31-7a72-43b9-9c8c-6bdbf6721b84
Behavior Graph:
Download SVG
%3 guuid=dccf73a1-1800-0000-a84e-615aba0a0000 pid=2746 /usr/bin/sudo guuid=68590aa3-1800-0000-a84e-615ac00a0000 pid=2752 /tmp/sample.bin guuid=dccf73a1-1800-0000-a84e-615aba0a0000 pid=2746->guuid=68590aa3-1800-0000-a84e-615ac00a0000 pid=2752 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c2ab5212-d50d-4786-91c7-05bd81e62a39
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.evad
Score:
60 / 100
Link:
https://www.joesandbox.com/analysis/1857358
Signature
Connects to many IPs within the same subnet mask (likely port scanning)
Drops invisible ELF files
Multi AV Scanner detection for submitted file
Sample deletes itself
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1857358 Sample: nklarm5.elf Startdate: 26/01/2026 Architecture: LINUX Score: 60 22 37.13.106.109 TELEFONICA_DE_ESPANAES Spain 2->22 24 37.13.106.110 TELEFONICA_DE_ESPANAES Spain 2->24 26 100 other IPs or domains 2->26 28 Multi AV Scanner detection for submitted file 2->28 30 Connects to many IPs within the same subnet mask (likely port scanning) 2->30 8 nklarm5.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 32 Drops invisible ELF files 8->32 34 Sample deletes itself 8->34 16 .systemd-journald 8->16         started        signatures6 process7 process8 18 .systemd-journald 16->18         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/57fb6190b3f7b59851c9e011b5e2387f3b1b69aadb7caf712ff851140f1bb278
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/57fb6190b3f7b59851c9e011b5e2387f3b1b69aadb7caf712ff851140f1bb278/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-01-26 00:27:47 UTC
File Type:
ELF32 Little (Exe)
AV detection:
15 of 36 (41.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=k75wdeft662zquoj4ai3lyryp45rw2nk3n6k64jp7biridy3wj4a._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
n/a
Link:
https://tria.ge/reports/260126-arzw9sex7g/
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/57fb6190b3f7b59851c9e011b5e2387f3b1b69aadb7caf712ff851140f1bb278

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_Generic_Threat_d94e1020
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 57fb6190b3f7b59851c9e011b5e2387f3b1b69aadb7caf712ff851140f1bb278

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3739220/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3739426/

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