MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 76b6f86d31fb859dbca1096d9d7aa6a4633095aaad023711da4ab55645bd8dc6. 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: 9


Intelligence 9 IOCs YARA 8 File information Comments
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SHA256 hash: 76b6f86d31fb859dbca1096d9d7aa6a4633095aaad023711da4ab55645bd8dc6
SHA3-384 hash: c60665a1134708465303019a969e2c09c4d80a97be8b877f36f9b9aec60409d401db8e192fbb2b35bae0ccc3af2c06cb
SHA1 hash: a6b837dd3226d156f8004b1a6bac331f85b88f36
MD5 hash: 28f07d7080fe85c83d9fc4b671650b4d
humanhash: may-nineteen-uncle-saturn
File name:kt12
Download: download sample
Signature Mirai
Create hunting rule
File size:249'335 bytes
First seen:2025-08-21 19:31:52 UTC
Last seen:2025-08-22 14:44:10 UTC
File type: elf
MIME type:application/x-executable
ssdeep 6144:1LecSGzKDUj/ZothCELqypeIo4KmxMyL/Z/ORKERCaSBDl:1LecSGzbxqo4KmxMyL/Z/WKERCaSBDl
TLSH T197344B93FC04EEBEF40BFA3508D30B256731BB968A4355267327796A593B2C11827F46
telfhash t13d8131659a3805d99e63cc19a8e96ba35557e52a2295ff2aff22cccc044e42cf125c0f
Magika elf
Reporter abuse_ch
Tags:elf gafgyt mirai

Intelligence

File Origin
# of uploads :
2
# of downloads :
95
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Linux.Mirai-63.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.29325.LC.Pl.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Linux.Mirai-81.UNOFFICIAL
Create hunting rule

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

Unix.Trojan.Mirai-6981989-0
Create hunting rule

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

Unix.Dropper.Mirai-7135928-0
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.Dropper.Mirai-7139229-0
Create hunting rule

Unix.Downloader.Mirai-7340346-0
Create hunting rule

Unix.Trojan.Gafgyt-7782058-0
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-9940650-0
Create hunting rule

Unix.Trojan.Mirai-10011027-0
Create hunting rule

Unix.Trojan.Mirai-10011918-0
Create hunting rule

Unix.Trojan.Mirai-10012509-0
Create hunting rule

Unix.Trojan.Mirai-10017111-0
Create hunting rule

Unix.Trojan.Mirai-10018298-0
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Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
gcc mirai obfuscated threat
Link:
https://www.filescan.io/uploads/68a7751b7137d68458367e09/reports/61b03c30-e1b2-403c-8e0e-8e9832d35525/overview
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/5b744a58-d994-4578-953c-91f918ee164d
Behavior Graph:
Download SVG
%3 guuid=4cac7398-1b00-0000-9fca-f6591a0b0000 pid=2842 /usr/bin/sudo guuid=bfbe069c-1b00-0000-9fca-f659200b0000 pid=2848 /tmp/sample.bin guuid=4cac7398-1b00-0000-9fca-f6591a0b0000 pid=2842->guuid=bfbe069c-1b00-0000-9fca-f659200b0000 pid=2848 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/30706d53-9163-4c2a-bb96-fa3356d94ffc
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
84 / 100
Link:
https://www.joesandbox.com/analysis/1762404
Signature
Antivirus / Scanner detection for submitted sample
Contains symbols with names commonly found in malware
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: 1762404 Sample: kt12.elf Startdate: 21/08/2025 Architecture: LINUX Score: 84 20 65.222.202.53, 80 CAPEREGIONALHEALTHSYSTEMUS United States 2->20 22 j48asd.dns.army 2->22 24 787892.dynv6.net 2->24 26 Malicious sample detected (through community Yara rule) 2->26 28 Antivirus / Scanner detection for submitted sample 2->28 30 Multi AV Scanner detection for submitted file 2->30 32 2 other signatures 2->32 8 kt12.elf 2->8         started        signatures3 process4 process5 10 kt12.elf 8->10         started        process6 12 kt12.elf 10->12         started        14 kt12.elf 10->14         started        16 kt12.elf 10->16         started        18 30 other processes 10->18
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/76b6f86d31fb859dbca1096d9d7aa6a4633095aaad023711da4ab55645bd8dc6
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/76b6f86d31fb859dbca1096d9d7aa6a4633095aaad023711da4ab55645bd8dc6/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/76b6f86d31fb859dbca1096d9d7aa6a4633095aaad023711da4ab55645bd8dc6
Threat name:
Linux.Backdoor.Gafgyt
Create hunting rule
Status:
Malicious
First seen:
2025-08-21 19:34:38 UTC
File Type:
ELF32 Big (Exe)
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=o23pq3jr7ocz3pfbbfwz26vgurrtbfnkvubdoeo2jk2vmrn5rxda._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
linux
Link:
https://tria.ge/reports/250821-x99krafp3z/
Verdict:
Malicious
Tags:
trojan gafgyt Unix.Trojan.Mirai-6981989-0
YARA:
Linux_Trojan_Gafgyt_28a2fe0c Linux_Gafgyt_May_2024
Link:
https://app.threat.zone/submission/a6340092-c7c5-4f42-84f8-5af9b71bbe3e
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/76b6f86d31fb859dbca1096d9d7aa6a4633095aaad023711da4ab55645bd8dc6

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:CP_AllMal_Detector
Create hunting rule
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
Rule name:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
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:Linux_Trojan_Gafgyt_28a2fe0c
Create hunting rule
Author:Elastic Security
Rule name:MAL_ARM_LNX_Mirai_Mar13_2022
Create hunting rule
Author:Mehmet Ali Kerimoglu a.k.a. CYB3RMX
Description:Detects new ARM Mirai variant
Rule name:setsockopt
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for setsockopt() red flags
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 76b6f86d31fb859dbca1096d9d7aa6a4633095aaad023711da4ab55645bd8dc6

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3603961/
  
Delivery method
Distributed via web download

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