MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef4ae59eb3e41a14521bf25668821783ffbc08031bd4ee7e7250c26b6ab76c62. 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: ef4ae59eb3e41a14521bf25668821783ffbc08031bd4ee7e7250c26b6ab76c62
SHA3-384 hash: a5e28f9064a9b295388f15f7f0942c1a8dd8c15db93cae56c3f0ccde23e5f3fdadfd026adeef928883df7c6a6c8c4eb5
SHA1 hash: cd0a2f3ea4d6eaad74bb6e8d0b8177912f316974
MD5 hash: bb5e2fe656ddb47231fe6f79d28039a9
humanhash: may-moon-blossom-hamper
File name:kt12
Download: download sample
Signature Mirai
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File size:214'757 bytes
First seen:2025-05-09 03:28:38 UTC
Last seen:2025-05-09 05:33:48 UTC
File type: elf
MIME type:application/x-executable
ssdeep 6144:gAAhhXYreLCtIrGN4yHh3mOJXPuZzZ4EZtZSJpO:gAxP3mOJXPuZzZ4EZtZSJpO
TLSH T161243A93B901DEBBF40FDB7204D30B257232BB6119531A26B317BD766A3A2D46827F41
telfhash t191714464953c05d9de239c19a8e96ba35557e12a22d9bb2aff16cccc040e42cf125d0f
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
2
# of downloads :
119
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Linux.Mirai-63.UNOFFICIAL
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Sanesecurity.Malware.30435.LC.UNOFFICIAL
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Unix.Trojan.Mirai-6981989-0
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Unix.Trojan.Mirai-7100807-0
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Unix.Dropper.Mirai-7135928-0
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Unix.Dropper.Mirai-7136013-0
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Unix.Dropper.Mirai-7136057-0
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Unix.Dropper.Mirai-7136070-0
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Unix.Dropper.Mirai-7139229-0
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Unix.Downloader.Mirai-7340346-0
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Unix.Trojan.Gafgyt-7782058-0
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Unix.Trojan.Mirai-8025795-0
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Unix.Trojan.Mirai-9858729-0
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Unix.Trojan.Mirai-9940650-0
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Unix.Trojan.Mirai-10012509-0
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Unix.Trojan.Mirai-10017111-0
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Unix.Trojan.Mirai-10018298-0
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Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=681d76c96c95617a27b62e7dlinux22vpnfull_triage
Tags:
mirai
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
gcc lolbin mirai remote
Link:
https://www.filescan.io/uploads/681d7685c7418694c8a7c36a/reports/8d7c9c2a-8e46-436d-be02-9d991df07e59/overview
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/16dcc47f-f9ac-4e64-863a-09506f50f5f6
Result
Threat name:
Mirai
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Detection:
malicious
Classification:
troj
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/1685048
Signature
Antivirus / Scanner detection for submitted sample
Contains symbols with names commonly found in malware
Multi AV Scanner detection for submitted file
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1685048 Sample: kt12.elf Startdate: 09/05/2025 Architecture: LINUX Score: 76 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 Antivirus / Scanner detection for submitted sample 2->24 26 Multi AV Scanner detection for submitted file 2->26 28 Yara detected Mirai 2->28 30 Contains symbols with names commonly found in malware 2->30 8 kt12.elf 2->8         started        10 dash rm 2->10         started        12 dash rm 2->12         started        signatures3 process4 process5 14 kt12.elf 8->14         started        process6 16 kt12.elf 14->16         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/ef4ae59eb3e41a14521bf25668821783ffbc08031bd4ee7e7250c26b6ab76c62
Detection:
mirai
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Link:
https://mwdb.cert.pl/sample/ef4ae59eb3e41a14521bf25668821783ffbc08031bd4ee7e7250c26b6ab76c62/
Threat name:
Linux.Worm.Mirai
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Status:
Malicious
First seen:
2025-05-09 03:29:10 UTC
File Type:
ELF32 Big (Exe)
AV detection:
17 of 23 (73.91%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=55folhvt4qnbiuq36jlgraqxqp73ycaddpko47tskdbgw2vxnrra._file
Result
Malware family:
mirai
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Score:
  10/10
Tags:
family:mirai botnet:mirai linux
Link:
https://tria.ge/reports/250509-d1yx4sgp9t/
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-6981989-0
YARA:
n/a
Link:
https://app.threat.zone/submission/7e866de1-5fe7-4ff7-ae1e-93ccee2f7220
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/ef4ae59eb3e41a14521bf25668821783ffbc08031bd4ee7e7250c26b6ab76c62

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
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Author:albertzsigovits
Description:Generic Approach to Mirai/Gafgyt samples
Rule name:MAL_ARM_LNX_Mirai_Mar13_2022
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Author:Mehmet Ali Kerimoglu a.k.a. CYB3RMX
Description:Detects new ARM Mirai variant
Rule name:setsockopt
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Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
Rule name:SUSP_XORed_Mozilla_Oct19
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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
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Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
Rule name:unixredflags3
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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 ef4ae59eb3e41a14521bf25668821783ffbc08031bd4ee7e7250c26b6ab76c62

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3532685/
  
Delivery method
Distributed via web download

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