MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2f671b81e2f166a25d250153722afdf3ad983b9dd8f0c3dc81c59615908c3da5. 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: 12


Intelligence 12 IOCs YARA 9 File information Comments

SHA256 hash: 2f671b81e2f166a25d250153722afdf3ad983b9dd8f0c3dc81c59615908c3da5
SHA3-384 hash: 3e9e06e9974de0ca3f52c6c95f10e65385b871b9c5f3ae6eadfcc270b2e1ec044e9683da48194673cd8744efb3e2a31c
SHA1 hash: a989f467bcd8d47f65344acf75a74d5f630c8467
MD5 hash: 9a5904bcc9e45ea59d7704788a5f0688
humanhash: angel-london-one-fifteen
File name:kt5
Download: download sample
Signature Mirai
File size:150'616 bytes
First seen:2025-05-09 04:49:03 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:h8MMnQj9MG/fQRgqzyH1Hfl4zfyLJiE1xJY28G:h8MMnE9MkQRgq2ht4zqLJiErY28G
TLSH T122E3F946BD518F13C5C622F7FBAE018D3B256B69D2EB31029D247F9037869DA0D77212
telfhash t1d221cde48be019ec77f9c38081dba62daede30dd1504217ac959279f05936d2743b93b
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 :
1
# of downloads :
101
Origin country :
DE DE
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
gcc lolbin mirai remote
Verdict:
Malicious
Uses P2P?:
true
Uses anti-vm?:
false
Architecture:
arm
Packer:
not packed
Botnet:
unknown
Number of open files:
0
Number of processes launched:
7
Processes remaning?
true
Remote TCP ports scanned:
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Behaviour
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Threat name:
Detection:
malicious
Classification:
troj
Score:
80 / 100
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:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1685071 Sample: kt5.elf Startdate: 09/05/2025 Architecture: LINUX Score: 80 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 Malicious sample detected (through community Yara rule) 2->24 26 Antivirus / Scanner detection for submitted sample 2->26 28 Multi AV Scanner detection for submitted file 2->28 30 Yara detected Mirai 2->30 8 kt5.elf 2->8         started        10 dash rm 2->10         started        12 dash rm 2->12         started        signatures3 process4 process5 14 kt5.elf 8->14         started        process6 16 kt5.elf 14->16         started       
Threat name:
Linux.Worm.Mirai
Status:
Malicious
First seen:
2025-05-09 04:49:13 UTC
File Type:
ELF32 Little (Exe)
AV detection:
17 of 23 (73.91%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:mirai botnet:mirai
Please note that we are no longer able to provide a coverage score for Virus Total.

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_Threat_d94e1020
Author:Elastic Security
Rule name:Linux_Mirai_Generic
Author:albertzsigovits
Description:Generic Approach to Mirai/Gafgyt samples
Rule name:MAL_ELF_LNX_Mirai_Oct10_2
Author:Florian Roth (Nextron Systems)
Description:Detects ELF malware Mirai related
Reference:Internal Research
Rule name:MAL_ELF_LNX_Mirai_Oct10_2_RID2F3A
Author:Florian Roth
Description:Detects ELF malware Mirai related
Reference:Internal Research
Rule name:Mirai_Botnet_Malware
Author:Florian Roth (Nextron Systems)
Description:Detects Mirai Botnet Malware
Reference:Internal Research
Rule name:Mirai_Botnet_Malware_RID2EF6
Author:Florian Roth
Description:Detects Mirai Botnet Malware
Reference:Internal Research
Rule name:SUSP_XORed_Mozilla_Oct19
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
Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
Rule name:unixredflags3
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 2f671b81e2f166a25d250153722afdf3ad983b9dd8f0c3dc81c59615908c3da5

(this sample)

  
Delivery method
Distributed via web download

Comments