MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d9b25f6ecf8b649cfafaf1d0020f91773d77dfeb74c38f09de2a73dd8631b49e. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d9b25f6ecf8b649cfafaf1d0020f91773d77dfeb74c38f09de2a73dd8631b49e
SHA3-384 hash: 6f15dec69c6e448230e7588a7bd6247b53b6e869ed0d79709d6b8ce3c006f69a6361c9807995347f6b1c2fe39186981f
SHA1 hash: 695a1ef44415427d3708282f0e6437a5cd338edb
MD5 hash: b282183571ef6e96acacc25d545b3786
humanhash: undress-skylark-freddie-sink
File name:nklx86
Download: download sample
Signature Mirai
Create hunting rule
File size:68'240 bytes
First seen:2025-12-23 00:03:16 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:Q5CPIv7BNZUMoVQ8zPDYPLNevYWHy4ipBxuR1dPRR0:Q5UIvF7JoWigLSYQZCjcM
TLSH T1B0634AC59A53E5F5EC19093514B3F7775A31F4351028EAA3E3D5AA36B842302FB4B2AC
telfhash t1ae21c9fa2d7e14e8b7d45848c15f5e552a2ae277586032749173dc3832ead42507ac34
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 :
41
Origin country :
DE DE
Vendor Threat Intelligence
No detections
Detection(s):
Sanesecurity.Malware.31075.LX.BOT.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-7755770-0
Create hunting rule

Unix.Trojan.Mirai-9866113-0
Create hunting rule

Unix.Trojan.Mirai-9885259-0
Create hunting rule

Unix.Trojan.Mirai-10008934-0
Create hunting rule

Unix.Trojan.Gafgyt-6735924-0
Create hunting rule

Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
mirai
Link:
https://www.filescan.io/uploads/6949dc7ce8abb702f805d198/reports/4dbd95a7-bae3-4db7-9633-642c486a5a5c/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-12-22T20:14:00Z UTC
Last seen:
2025-12-23T05:09:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/d9b25f6ecf8b649cfafaf1d0020f91773d77dfeb74c38f09de2a73dd8631b49e/results?tab=lookup
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/885e5766-4a4f-4dd3-b6bd-b1cdc286206d
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/1837971
Signature
Antivirus / Scanner detection for submitted sample
Connects to many IPs within the same subnet mask (likely port scanning)
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1837971 Sample: nklx86.elf Startdate: 23/12/2025 Architecture: LINUX Score: 68 18 2.143.140.222, 23 TELEFONICA_DE_ESPANAES Spain 2->18 20 2.143.140.224, 23 TELEFONICA_DE_ESPANAES Spain 2->20 22 100 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 Connects to many IPs within the same subnet mask (likely port scanning) 2->30 8 nklx86.elf 2->8         started        10 dash rm 2->10         started        12 dash rm 2->12         started        signatures3 process4 process5 14 nklx86.elf 8->14         started        process6 16 nklx86.elf 14->16         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/d9b25f6ecf8b649cfafaf1d0020f91773d77dfeb74c38f09de2a73dd8631b49e
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/d9b25f6ecf8b649cfafaf1d0020f91773d77dfeb74c38f09de2a73dd8631b49e/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-12-23 00:04:18 UTC
File Type:
ELF32 Little (Exe)
AV detection:
13 of 24 (54.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3gzf63wprnsjz6x26hiaed4ro46xpx7lotby6co6fjz53brrwspa._file
Result
Malware family:
n/a
Score:
  9/10
Tags:
discovery linux
Link:
https://tria.ge/reports/251223-ab93aszjct/
Behaviour
Changes its process name
Creates a large amount of network flows
Renames itself
Contacts a large (13463) amount of remote hosts
Verdict:
Malicious
Tags:
trojan mirai Unix.Trojan.Mirai-7755770-0
YARA:
Linux_Trojan_Mirai_b14f4c5d Linux_Trojan_Mirai_88de437f Linux_Trojan_Mirai_cc93863b Linux_Trojan_Mirai_8aa7b5d3
Link:
https://app.threat.zone/submission/737ad68d-554a-4395-a33b-ccb3525fb365
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/d9b25f6ecf8b649cfafaf1d0020f91773d77dfeb74c38f09de2a73dd8631b49e

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_Mirai_88de437f
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_8aa7b5d3
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_b14f4c5d
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_cc93863b
Create hunting rule
Author:Elastic Security
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 d9b25f6ecf8b649cfafaf1d0020f91773d77dfeb74c38f09de2a73dd8631b49e

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3739136/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3739168/

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