MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f75fb0c17fd3904c771656d2a82c9a37939f40f3a4542d1ab905b0e5d78f76ec. 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 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f75fb0c17fd3904c771656d2a82c9a37939f40f3a4542d1ab905b0e5d78f76ec
SHA3-384 hash: 48060e1b396840638f91be37b201c6f64913465da182d9d13c886da6fb2de78508be61590d08a01760b872b840845a54
SHA1 hash: 3d19ad09910d7126339419c0d4358161b9059d44
MD5 hash: d8c8e640a5a29a8ba62d3d95d2dbb075
humanhash: oven-social-leopard-comet
File name:kt4
Download: download sample
Signature Mirai
Create hunting rule
File size:183'420 bytes
First seen:2025-05-08 08:47:09 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:o/bYsAs2bDtPVFoL444FXwzuCwFtguKqM8a:sMlqU44BwzuCwkuKqM8a
TLSH T1A804C549FD149B2AC7D272FBF75D02CD363E1BACA3EA71128D311E5137C9AA16936120
telfhash t123f0c0198a6d4e9d6388465470cd0607e2a831d7394a2c22f39c65164f119d2b00b80f
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 :
96
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Linux.Mirai-61.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Linux.Mirai-63.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.30435.LC.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-7100807-0
Create hunting rule

Unix.Dropper.Mirai-7136013-0
Create hunting rule

Unix.Dropper.Mirai-7136057-0
Create hunting rule

Unix.Dropper.Mirai-7136070-0
Create hunting rule

Unix.Trojan.Mirai-8025795-0
Create hunting rule

Unix.Trojan.Mirai-9858729-0
Create hunting rule

Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=681c70086c95617a27b5f972linux22vpnfull_triage
Tags:
mirai
Result
Verdict:
Malware
Maliciousness:
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
gcc lolbin remote
Link:
https://www.filescan.io/uploads/681c6fc8d95f3e34e963e440/reports/48fc5e76-de52-4e35-9f52-7411b1eb0d52/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
not packed
Botnet:
unknown
Number of open files:
0
Number of processes launched:
24
Processes remaning?
true
Full report:
https://elfdigest.com/brief/f75fb0c17fd3904c771656d2a82c9a37939f40f3a4542d1ab905b0e5d78f76ec
Behaviour
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9351b07a-b085-42c3-9597-02b26e4b4de2
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/1684155
Signature
Antivirus / Scanner detection for submitted sample
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: 1684155 Sample: kt4.elf Startdate: 08/05/2025 Architecture: LINUX Score: 72 18 109.202.202.202, 80 INIT7CH Switzerland 2->18 20 91.189.91.42, 443 CANONICAL-ASGB United Kingdom 2->20 22 3 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 Yara detected Mirai 2->30 8 kt4.elf 2->8         started        10 dash rm 2->10         started        12 dash rm 2->12         started        signatures3 process4 process5 14 kt4.elf 8->14         started        process6 16 kt4.elf 14->16         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/f75fb0c17fd3904c771656d2a82c9a37939f40f3a4542d1ab905b0e5d78f76ec
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f75fb0c17fd3904c771656d2a82c9a37939f40f3a4542d1ab905b0e5d78f76ec/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-05-08 08:48:11 UTC
File Type:
ELF32 Little (Exe)
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=65p3bql72oiey5ywk3jkqle2g6jz6qhturkc2gvzawyolv4po3wa._file
Result
Malware family:
n/a
Score:
  4/10
Tags:
n/a
Link:
https://tria.ge/reports/250508-kpyljaztdz/
Behaviour
Changes its process name
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/f75fb0c17fd3904c771656d2a82c9a37939f40f3a4542d1ab905b0e5d78f76ec

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:Linux_Mirai_Generic
Create hunting rule
Author:albertzsigovits
Description:Generic Approach to Mirai/Gafgyt samples
Rule name:Mirai_Botnet_Malware
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects Mirai Botnet Malware
Reference:Internal Research
Rule name:Mirai_Botnet_Malware_RID2EF6
Create hunting rule
Author:Florian Roth
Description:Detects Mirai Botnet Malware
Reference:Internal Research
Rule name:SUSP_XORed_Mozilla_Oct19
Create hunting rule
Author:Florian Roth
Description:Detects suspicious single byte XORed keyword 'Mozilla/5.0' - it uses yara's XOR modifier and therefore cannot print the XOR key. You can use the CyberChef recipe linked in the reference field to brute force the used key.
Reference:https://gchq.github.io/CyberChef/#recipe=XOR_Brute_Force()
Rule name:SUSP_XORed_Mozilla_RID2DB4
Create hunting rule
Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
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 f75fb0c17fd3904c771656d2a82c9a37939f40f3a4542d1ab905b0e5d78f76ec

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3532689/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3531157/

Comments