MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 899aa5be5a040336fae663c636f9fc6267ec067d0bc301de239a177386b180ec. 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: 11


Intelligence 11 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 899aa5be5a040336fae663c636f9fc6267ec067d0bc301de239a177386b180ec
SHA3-384 hash: b917793080109b054da34f5f60e8b97686bdc2b2d5a56710f6a53b61bbcee91b0fcf61e1196d5758fd77bdd9d6c7e7ad
SHA1 hash: 644372351dfc928282736f127096d62bc08cd339
MD5 hash: 2e245faef13d221223f25b0acb4b0abf
humanhash: india-uranus-uniform-massachusetts
File name:kt3
Download: download sample
Signature Mirai
Create hunting rule
File size:115'680 bytes
First seen:2025-05-13 17:36:58 UTC
Last seen:2025-05-13 20:51:42 UTC
File type: elf
MIME type:application/x-executable
ssdeep 1536:cBtF203QJai6aZikbqOVT/oaKhZZ4DakyVc6:cfF203QJaQikbal
TLSH T1E4B375796BA29FBBEC1ECD7301990502214DA64D52DA2F6FFAA4C518E38BD4F44E3C44
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
2
# of downloads :
98
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.30419.LX.M0Z.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:
97.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6823843e4a59e5a2ce04420flinux22vpnfull_triage
Tags:
mirai
Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Runs as daemon
Opens a port
Sends data to a server
Substitutes an application name
Deleting of the original file
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
gcc
Link:
https://www.filescan.io/uploads/682383470e63989625830be7/reports/5a07ab18-8599-484d-9549-9447d34c1122/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
mips
Packer:
not packed
Botnet:
unknown
Number of open files:
7
Number of processes launched:
1
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/899aa5be5a040336fae663c636f9fc6267ec067d0bc301de239a177386b180ec
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/bfa90ec7-4fa7-42d3-a6c8-21fe5da6ef35
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/1689221
Signature
Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample deletes itself
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1689221 Sample: kt3.elf Startdate: 13/05/2025 Architecture: LINUX Score: 76 15 65.222.202.53, 80 CAPEREGIONALHEALTHSYSTEMUS United States 2->15 17 daisy.ubuntu.com 2->17 19 Malicious sample detected (through community Yara rule) 2->19 21 Antivirus / Scanner detection for submitted sample 2->21 23 Multi AV Scanner detection for submitted file 2->23 25 Yara detected Mirai 2->25 8 kt3.elf 2->8         started        signatures3 process4 signatures5 27 Sample deletes itself 8->27 11 kt3.elf 8->11         started        process6 process7 13 kt3.elf 11->13         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/899aa5be5a040336fae663c636f9fc6267ec067d0bc301de239a177386b180ec
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/899aa5be5a040336fae663c636f9fc6267ec067d0bc301de239a177386b180ec/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-05-13 17:37:11 UTC
File Type:
ELF32 Little (Exe)
AV detection:
23 of 37 (62.16%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rgnklps2aqbtn6xgmpddn6p4mjt6ybt5bpbqdxrdtilxhbvrqdwa._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion discovery
Link:
https://tria.ge/reports/250513-v67wmsep7y/
Behaviour
Changes its process name
Reads system network configuration
Enumerates active TCP sockets
Deletes itself
Modifies Watchdog functionality
Verdict:
Malicious
Tags:
botnet mirai Unix.Trojan.Mirai-7100807-0
YARA:
Mirai_Botnet_Malware
Link:
https://app.threat.zone/submission/3199ce83-fe84-4243-9e00-20651f25f9f2
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Mirai
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/899aa5be5a040336fae663c636f9fc6267ec067d0bc301de239a177386b180ec

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_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 899aa5be5a040336fae663c636f9fc6267ec067d0bc301de239a177386b180ec

(this sample)

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

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