MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cf41abc91738015aa315e1d80f3d80cede21e3cb85ae5a054115d756b3ac2f3e. 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 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: cf41abc91738015aa315e1d80f3d80cede21e3cb85ae5a054115d756b3ac2f3e
SHA3-384 hash: 0fee7bec489c39dd8ddccbe48656eff4f10b68522b863b2269bcea54c388f6d6dfc5310de60d3e4b5fead70e56abff5d
SHA1 hash: a5c982158a226c1dd42af688abfbcfe02c061805
MD5 hash: f1039e51cfa36d8d34b0357e5b49a032
humanhash: neptune-whiskey-oklahoma-tennessee
File name:nklx86
Download: download sample
Signature Mirai
Create hunting rule
File size:74'688 bytes
First seen:2025-12-28 13:40:06 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:GsLRODpH0jXkxYx347l4L7Z02j27X7gpwddOa3pHbX0C/05JS0yXRr:GsVgpH0jUxaaSLF02qwpqOa3JIM+4l
TLSH T1A0735BC9EA83D4F5EC4A09751437F7734A32F534003AEAC7D7A8E926F856601B62639C
telfhash t18631b3fb1e7a48e8f7d45848931e57151a68e777293039b25673d82032dedc280bac39
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 :
46
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
Sanesecurity.Malware.31075.LX.BOT.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-7755770-0
Create hunting rule

Unix.Trojan.Mirai-9857931-0
Create hunting rule

Unix.Trojan.Mirai-9866113-0
Create hunting rule

Unix.Trojan.Mirai-9885259-0
Create hunting rule

Unix.Trojan.Mirai-10008934-0
Create hunting rule

Unix.Trojan.Gafgyt-6735924-0
Create hunting rule

Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
mirai
Link:
https://www.filescan.io/uploads/6951334684afa5547b5f1fe8/reports/6993a745-fc49-4581-985a-82af976268b9/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-12-28T11:20:00Z UTC
Last seen:
2025-12-28T23:36:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/cf41abc91738015aa315e1d80f3d80cede21e3cb85ae5a054115d756b3ac2f3e/results?tab=lookup
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/aef83fb3-2d86-41e6-bcd5-8b4e2ef53a34
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/1840787
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1840787 Sample: nklx86.elf Startdate: 28/12/2025 Architecture: LINUX Score: 72 18 156.123.110.234 XNSTGCA United States 2->18 20 124.44.208.63 XEPHIONNTT-MECorporationJP Japan 2->20 22 100 other IPs or domains 2->22 24 Malicious sample detected (through community Yara rule) 2->24 26 Multi AV Scanner detection for submitted file 2->26 28 Yara detected Mirai 2->28 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       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/cf41abc91738015aa315e1d80f3d80cede21e3cb85ae5a054115d756b3ac2f3e
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/cf41abc91738015aa315e1d80f3d80cede21e3cb85ae5a054115d756b3ac2f3e/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-12-28 14:11:00 UTC
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=z5a2xsixhaavviyv4hma6pmaz3pcdy6lqwxfubkbcxlvnm5mf47a._file
Result
Malware family:
n/a
Score:
  9/10
Tags:
defense_evasion discovery linux
Link:
https://tria.ge/reports/251228-qypmwafn9s/
Behaviour
Changes its process name
Modifies Watchdog functionality
Renames itself
Unexpected DNS network traffic destination
Contacts a large (91732) amount of remote hosts
Creates a large amount of network flows
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-7755770-0
YARA:
n/a
Link:
https://app.threat.zone/submission/c431d2ee-cd3d-4d0c-89fc-bddbfcab7cc6
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/cf41abc91738015aa315e1d80f3d80cede21e3cb85ae5a054115d756b3ac2f3e

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:ELF_Toriilike_persist
Create hunting rule
Author:4r4
Description:Detects Torii IoT Botnet (stealthier Mirai alternative)
Reference:Identified via researched data
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 cf41abc91738015aa315e1d80f3d80cede21e3cb85ae5a054115d756b3ac2f3e

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3739136/
  
Delivery method
Distributed via web download

Comments