MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8ac8f8437634eff0c1182e9abe3fbfe0ee22c69dc424455ce0e31edce8b69397. 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: 8


Intelligence 8 IOCs YARA 8 File information Comments

SHA256 hash: 8ac8f8437634eff0c1182e9abe3fbfe0ee22c69dc424455ce0e31edce8b69397
SHA3-384 hash: 381f4eb84f102867d6db8765214ac982a29f38db06180746da43b759000c4276e1edc404ad6ae477999ab3a64293cc06
SHA1 hash: 6def1355987f27d82c95ee60a80abde54cdb62eb
MD5 hash: f2ba626b694874459670bafbb4f34f1d
humanhash: one-princess-jupiter-nine
File name:lmkjn.x86
Download: download sample
Signature Mirai
File size:67'872 bytes
First seen:2026-05-31 00:08:50 UTC
Last seen:2026-05-31 12:35:29 UTC
File type: elf
MIME type:application/x-executable
ssdeep 1536:RgCa8F1GyhS3oD+X2YLKu35mzu1/ZLZBY:RgCa8r4oe2YLRpmzu1BZBY
TLSH T19563290368A081FCC155C570AF7FA53BD623F43E1135AA8EBB947F267A4AD211E1F189
telfhash t1642159666d290c7065ef3435f702d29929651e6408f374e2dc7661f2cb633c00eb6413
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 :
76
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Receives data from a server
Runs as daemon
Opens a port
Sends data to a server
Traces processes
Substitutes an application name
Performs a bruteforce attack in the network
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
masquerade
Verdict:
Malicious
File Type:
elf.64.le
First seen:
2026-05-30T21:10:00Z UTC
Last seen:
2026-05-31T06:11:00Z UTC
Hits:
~10
Result
Threat name:
n/a
Detection:
malicious
Classification:
n/a
Score:
56 / 100
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1920681 Sample: lmkjn.x86.elf Startdate: 31/05/2026 Architecture: LINUX Score: 56 22 81.16.197.238 ZT-HU Hungary 2->22 24 46.6.172.45 XTRATelecomES Spain 2->24 26 98 other IPs or domains 2->26 28 Malicious sample detected (through community Yara rule) 2->28 30 Multi AV Scanner detection for submitted file 2->30 8 lmkjn.x86.elf 2->8         started        10 dash rm 2->10         started        12 dash rm 2->12         started        14 python3.8 dpkg 2->14         started        signatures3 process4 process5 16 lmkjn.x86.elf 8->16         started        18 lmkjn.x86.elf 8->18         started        process6 20 lmkjn.x86.elf 16->20         started       
Threat name:
Linux.Backdoor.Mirai
Status:
Malicious
First seen:
2026-05-31 00:09:43 UTC
File Type:
ELF64 Little (Exe)
AV detection:
18 of 37 (48.65%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  9/10
Tags:
defense_evasion discovery linux
Behaviour
Enumerates kernel/hardware configuration
Reads runtime system information
Changes its process name
Enumerates running processes
Writes file to system bin folder
Modifies Watchdog functionality
Traces itself
Contacts a large (59539) amount of remote hosts
Creates a large amount of network flows
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_Trojan_Gafgyt_0cd591cd
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_33b4111a
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_620087b9
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_807911a2
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_9e9530a7
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_a33a8363
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_d4227dbf
Author:Elastic Security
Rule name:TH_Generic_MassHunt_Linux_Malware_2026_CYFARE
Author:CYFARE
Description:Generic Linux malware mass-hunt rule - 2026
Reference:https://cyfare.net/

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Mirai

elf 8ac8f8437634eff0c1182e9abe3fbfe0ee22c69dc424455ce0e31edce8b69397

(this sample)

  
Delivery method
Distributed via web download

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