MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7cfe684538af63a471b49e38cc0a9faf86dd91da89baf4a1cbe6859708137376. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7cfe684538af63a471b49e38cc0a9faf86dd91da89baf4a1cbe6859708137376
SHA3-384 hash: a879605d5b25f350eac95735e6e525b5889f17956278a8c47b5cd6b3f25ea438e23c04f9b4e0e4e552fc72fa10d67011
SHA1 hash: 07fbc6a9c11f76dac59c62b8e61641ffdd59d628
MD5 hash: 871858b3f78d8b4f425817e21f29d3fa
humanhash: zulu-muppet-lamp-carolina
File name:kt3
Download: download sample
Signature Mirai
Create hunting rule
File size:259'104 bytes
First seen:2025-08-16 12:43:33 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:I/+GZPfrb+fCI2hiVT/TFLHAqVIOZY+S0Zi3QFYFQMU5XEZ5P6oVrT1gC/dkJNYv:a+GZPfrbIdgq6f+15XETv1gUdwYVJwi
TLSH T18544412A6B619FB7EC1ACD3301E94502208CA24A62D92F7FB6B4C65CF78AD4F45D3C54
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
54
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-9441505-0
Create hunting rule

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

Unix.Trojan.Mirai-10017641-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Receives data from a server
Runs as daemon
Opens a port
Sends data to a server
Connection attempt
Substitutes an application name
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
gcc lolbin obfuscated remote threat
Link:
https://www.filescan.io/uploads/68a07d80419c816a6e88f74f/reports/5cd8022a-4d9f-4c57-a597-98b434edb1e5/overview
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/6e81522d-e190-4228-be65-0c95e6e0d76f
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
64 / 100
Link:
https://www.joesandbox.com/analysis/1758322
Signature
Antivirus / Scanner detection for submitted sample
Multi AV Scanner detection for submitted file
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1758322 Sample: kt3.elf Startdate: 16/08/2025 Architecture: LINUX Score: 64 14 j48asd.dns.army 156.225.31.132, 56312, 8856 XIAOZHIYUN1-AS-APICIDCNETWORKUS Seychelles 2->14 16 Antivirus / Scanner detection for submitted sample 2->16 18 Multi AV Scanner detection for submitted file 2->18 20 Yara detected Mirai 2->20 8 kt3.elf 2->8         started        signatures3 process4 process5 10 kt3.elf 8->10         started        process6 12 kt3.elf 10->12         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/7cfe684538af63a471b49e38cc0a9faf86dd91da89baf4a1cbe6859708137376
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/7cfe684538af63a471b49e38cc0a9faf86dd91da89baf4a1cbe6859708137376/
Verdict:
Malicious
Threat:
HEUR:Backdoor.Linux.Mirai
Link:
https://tip.neiki.dev/file/7cfe684538af63a471b49e38cc0a9faf86dd91da89baf4a1cbe6859708137376
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-08-16 12:44:27 UTC
File Type:
ELF32 Little (Exe)
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=pt7gqrjyv5r2i4nuty4mycu7v6dn3eo2rg5pjiol42czocaton3a._file
Result
Malware family:
n/a
Score:
  4/10
Tags:
n/a
Link:
https://tria.ge/reports/250816-pyp3zadq9s/
Behaviour
Changes its process name
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-7100807-0
YARA:
n/a
Link:
https://app.threat.zone/submission/5f32edc8-2030-41a7-9583-db8e74c49d6e
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/7cfe684538af63a471b49e38cc0a9faf86dd91da89baf4a1cbe6859708137376

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_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Mirai_Generic
Create hunting rule
Author:albertzsigovits
Description:Generic Approach to Mirai/Gafgyt samples
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 7cfe684538af63a471b49e38cc0a9faf86dd91da89baf4a1cbe6859708137376

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3604034/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3532686/
  
URLhaus
https://urlhaus.abuse.ch/url/3603501/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh

Comments