MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b1869b62d6241a405444c814affceb6d85c8b2fa4d0327126454189858e00ca3. 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: 13


Intelligence 13 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b1869b62d6241a405444c814affceb6d85c8b2fa4d0327126454189858e00ca3
SHA3-384 hash: ff5ed1e82276254ccef04baf7c6722bd0554e3de5cde4f956aeeac17dc891059e711cd02cd96c3558d17387c11b8c2dc
SHA1 hash: e45c243980f218fc8d93708906d80861b2a2c7af
MD5 hash: 72c6db31772645de6272b99f2be42b79
humanhash: iowa-bluebird-low-oregon
File name:kt1
Download: download sample
Signature Mirai
Create hunting rule
File size:68'316 bytes
First seen:2025-05-07 13:25:13 UTC
Last seen:2025-05-07 21:55:59 UTC
File type: elf
MIME type:application/x-executable
ssdeep 1536:oa2x+/ZbW/YEuxJHFo+mXH7HacGTtMY0rzC6ILm9HC:B2x+/4AEuxJHFo+87Hd+tb0avOi
TLSH T12F63C641B642D8B2E40350F224A5CFA10635F63E34E1D89FF3956D7BF53AA808652B6F
telfhash t1a921b6f51afe09d9a7e49000c15e5f923959e13f298472f04723d531335bf46607ac3a
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 :
3
# of downloads :
90
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
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:
97.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=681b5f936c95617a27b5c96dlinux22vpnfull_triage
Tags:
ransomware shellcode mirai
Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
DNS request
Sends data to a server
Opens a port
Receives data from a server
Runs as daemon
Substitutes an application name
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
gcc
Link:
https://www.filescan.io/uploads/681b5f4ac7418694c8a6cd21/reports/ff7b018f-707a-4638-9734-6ae8b89330a9/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
x86
Packer:
not packed
Botnet:
unknown
Number of open files:
0
Number of processes launched:
5
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/b1869b62d6241a405444c814affceb6d85c8b2fa4d0327126454189858e00ca3
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/4f6d8bc5-4603-494b-ac5e-4e6d62c073c5
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/1683436
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 signatures2 2 Behavior Graph ID: 1683436 Sample: kt1.elf Startdate: 07/05/2025 Architecture: LINUX Score: 72 22 Malicious sample detected (through community Yara rule) 2->22 24 Antivirus / Scanner detection for submitted sample 2->24 26 Multi AV Scanner detection for submitted file 2->26 28 Yara detected Mirai 2->28 8 kt1.elf 2->8         started        process3 process4 10 kt1.elf 8->10         started        process5 12 kt1.elf 10->12         started        14 kt1.elf 10->14         started        16 kt1.elf 10->16         started        process6 18 kt1.elf 12->18         started        20 kt1.elf 14->20         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b1869b62d6241a405444c814affceb6d85c8b2fa4d0327126454189858e00ca3
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b1869b62d6241a405444c814affceb6d85c8b2fa4d0327126454189858e00ca3/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-05-07 13:25:32 UTC
File Type:
ELF32 Little (Exe)
AV detection:
26 of 37 (70.27%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wgdjwywweqneavcezakk77hlnwc4rmx2jubsoetekqmjqwhabsrq._file
Result
Malware family:
n/a
Score:
  9/10
Tags:
discovery linux
Link:
https://tria.ge/reports/250507-qn646sssez/
Behaviour
Changes its process name
Creates a large amount of network flows
Verdict:
Malicious
Tags:
trojan mirai botnet Unix.Trojan.Mirai-7100807-0
YARA:
Linux_Trojan_Mirai_389ee3e9 Mirai_Botnet_Malware
Link:
https://app.threat.zone/submission/22582732-59b3-42eb-8b6c-eff991fd52fb
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/b1869b62d6241a405444c814affceb6d85c8b2fa4d0327126454189858e00ca3

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:Linux_Trojan_Mirai_389ee3e9
Create hunting rule
Author:Elastic Security
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 b1869b62d6241a405444c814affceb6d85c8b2fa4d0327126454189858e00ca3

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3531148/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3532680/

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