MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a8a957c59b97f53123a9406ded737c532249bb21ecd290c48bdcb9c2a378542e. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a8a957c59b97f53123a9406ded737c532249bb21ecd290c48bdcb9c2a378542e
SHA3-384 hash: 6c7ed54ecf58d613cb2a80e0eaff0958a6c32fff0c39e998b4159135beb9b15fc9057cde93bed15d3236a622a2a0f6b1
SHA1 hash: 0d7ad08ce84591446bd401482ddef7911116fe7e
MD5 hash: 2e8b8e1ade4e760b8d7cbe3b0e175d7c
humanhash: hawaii-black-nine-mississippi
File name:nklarm7
Download: download sample
Signature Mirai
Create hunting rule
File size:97'608 bytes
First seen:2025-12-21 14:59:02 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:+enlR6B5yF6tib1l0EeP+acCtell+hLIxZfDbS8+jdvXlW3a9BktCA3XNloFidJA:GRotP7xZfDbRSvXlW3a9BktC/OJq7m9O
TLSH T11793078AF9819B15C5D522BEFE1E518D331317B8E3EF7202DD205B25778A92B0E7B901
telfhash t171d02be0d9e597e8bbe8539806098586abbdb79c2b003293456d566f80055d1691414a
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
30
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-9885259-0
Create hunting rule

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

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

Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Sends data to a server
Receives data from a server
Creating a file
Runs as daemon
Opens a port
DNS request
Substitutes an application name
Performs a bruteforce attack in the network
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
rust
Link:
https://www.filescan.io/uploads/69480b59e126b9ff438ace3e/reports/454d0298-d810-4f89-a261-e642a1e7a9cb/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-12-21T12:14:00Z UTC
Last seen:
2025-12-23T02:46:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.gen
Link:
https://opentip.kaspersky.com/a8a957c59b97f53123a9406ded737c532249bb21ecd290c48bdcb9c2a378542e/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/3b93e6c3-458c-4cae-b71b-08edb0eddd19
Behavior Graph:
Download SVG
%3 guuid=a73545f7-1900-0000-a87a-9354d40a0000 pid=2772 /usr/bin/sudo guuid=7fde19fa-1900-0000-a87a-9354dc0a0000 pid=2780 /tmp/sample.bin guuid=a73545f7-1900-0000-a87a-9354d40a0000 pid=2772->guuid=7fde19fa-1900-0000-a87a-9354dc0a0000 pid=2780 execve
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9c464e51-5436-4de5-9f52-168298b2f1ed
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj
Score:
52 / 100
Link:
https://www.joesandbox.com/analysis/1837036
Signature
Connects to many IPs within the same subnet mask (likely port scanning)
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1837036 Sample: nklarm7.elf Startdate: 21/12/2025 Architecture: LINUX Score: 52 18 92.26.147.250 OPALTELECOM-ASTalkTalkCommunicationsLimitedGB United Kingdom 2->18 20 92.26.147.253 OPALTELECOM-ASTalkTalkCommunicationsLimitedGB United Kingdom 2->20 22 100 other IPs or domains 2->22 24 Multi AV Scanner detection for submitted file 2->24 26 Connects to many IPs within the same subnet mask (likely port scanning) 2->26 8 nklarm7.elf 2->8         started        10 dash rm 2->10         started        12 dash rm 2->12         started        signatures3 process4 process5 14 nklarm7.elf 8->14         started        process6 16 nklarm7.elf 14->16         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/a8a957c59b97f53123a9406ded737c532249bb21ecd290c48bdcb9c2a378542e
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a8a957c59b97f53123a9406ded737c532249bb21ecd290c48bdcb9c2a378542e/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/a8a957c59b97f53123a9406ded737c532249bb21ecd290c48bdcb9c2a378542e
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-12-21 15:00:36 UTC
File Type:
ELF32 Little (Exe)
AV detection:
11 of 24 (45.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vcuvprm3s72tci5jibw62434kmretozb5tjjbrel3s44fi3ykqxa._file
Result
Malware family:
n/a
Score:
  9/10
Tags:
discovery
Link:
https://tria.ge/reports/251221-sc9f9scy3c/
Behaviour
Changes its process name
Renames itself
Contacts a large (56842) amount of remote hosts
Creates a large amount of network flows
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-7755770-0
YARA:
n/a
Link:
https://app.threat.zone/submission/9469e70a-8021-4c7e-a4d0-6c3b50e42a80
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.20
Link:
https://yomi.yoroi.company/submissions/a8a957c59b97f53123a9406ded737c532249bb21ecd290c48bdcb9c2a378542e

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_8299c877
Create hunting rule
Author:Elastic Security
Rule name:Mal_LNX_Mirai_Botnet_ELF
Create hunting rule
Author:Phatcharadol Thangplub
Description:Use to detect Mirai botnet, and there variants.
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 a8a957c59b97f53123a9406ded737c532249bb21ecd290c48bdcb9c2a378542e

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3739154/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3739156/

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