MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 64b9835344669837dfc0eff895ad3deb3689e914d87c07ced068a68f9c772dec. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 64b9835344669837dfc0eff895ad3deb3689e914d87c07ced068a68f9c772dec
SHA3-384 hash: cfae4b9dc2928deea879e59c88c4cb255964aeef4e93f3cde4fd344f4456e10bf404b2c8ee0b0d75ca84d20f02a5d54f
SHA1 hash: 21ba05cf31032c50a84b2ba4b2a762757a759e29
MD5 hash: 8c671587c8cb9ad4898b9495c525d141
humanhash: magnesium-undress-dakota-robin
File name:top1miku.m68k
Download: download sample
Signature Mirai
Create hunting rule
File size:187'808 bytes
First seen:2025-07-31 19:20:51 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:yKf2vBLSKnN3eDfjq6D6WAFE+4tHrVhvqbVsjbiZLToXhCxxyBAEY:yK6BLgu6DraEBRhvGLTlyBBY
TLSH T12A044BC7F900DDBEF80AE7374413090AB130B7A264925B777117796BED3A199093BE86
Magika elf
Reporter abuse_ch
Tags:elf gafgyt mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
23
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Unix.Trojan.Mirai-6981989-0
Create hunting rule

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

Unix.Trojan.Mirai-9940650-0
Create hunting rule

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

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

Unix.Trojan.Mirai-10018298-0
Create hunting rule

Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
lolbin obfuscated remote
Link:
https://www.filescan.io/uploads/688bc23773b8ef6f4af7fc63/reports/34f5e68f-fff2-4ac2-a791-76817f70dcad/overview
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/fd9d334b-2e94-46f3-bbc5-a44584bb86f2
Behavior Graph:
Download SVG
%3 guuid=0bbddabd-1900-0000-9c56-abe04b070000 pid=1867 /usr/bin/sudo guuid=0ff08abf-1900-0000-9c56-abe050070000 pid=1872 /tmp/sample.bin guuid=0bbddabd-1900-0000-9c56-abe04b070000 pid=1867->guuid=0ff08abf-1900-0000-9c56-abe050070000 pid=1872 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/5f2b2de2-60a6-410e-beec-c632b5d7726c
Result
Threat name:
Gafgyt, Mirai, Xmrig
Create hunting rule
Detection:
malicious
Classification:
troj.evad.mine
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1748056
Signature
Drops files in suspicious directories
Drops invisible ELF files
Found strings related to Crypto-Mining
Multi AV Scanner detection for submitted file
Sample deletes itself
Sample tries to persist itself using System V runlevels
Sample tries to set files in /etc globally writable
Uses dynamic DNS services
Yara detected Gafgyt
Yara detected Mirai
Yara detected Xmrig cryptocurrency miner
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1748056 Sample: top1miku.m68k.elf Startdate: 31/07/2025 Architecture: LINUX Score: 100 40 top1miku.duckdns.org 2->40 42 207.9.126.208 XO-AS15US United States 2->42 44 99 other IPs or domains 2->44 52 Multi AV Scanner detection for submitted file 2->52 54 Yara detected Gafgyt 2->54 56 Yara detected Mirai 2->56 58 Yara detected Xmrig cryptocurrency miner 2->58 10 top1miku.m68k.elf 2->10         started        signatures3 60 Uses dynamic DNS services 40->60 process4 signatures5 68 Found strings related to Crypto-Mining 10->68 13 top1miku.m68k.elf 10->13         started        process6 process7 15 top1miku.m68k.elf 13->15         started        file8 38 /etc/init.d/sysd, POSIX 15->38 dropped 46 Sample tries to set files in /etc globally writable 15->46 48 Drops files in suspicious directories 15->48 50 Sample tries to persist itself using System V runlevels 15->50 19 top1miku.m68k.elf sh 15->19         started        21 top1miku.m68k.elf 15->21         started        signatures9 process10 signatures11 24 sh cp 19->24         started        62 Sample deletes itself 21->62 28 top1miku.m68k.elf sh 21->28         started        30 top1miku.m68k.elf sh 21->30         started        32 top1miku.m68k.elf sh 21->32         started        34 9 other processes 21->34 process12 file13 36 /usr/bin/.sh, ELF 24->36 dropped 64 Drops invisible ELF files 24->64 66 Drops files in suspicious directories 24->66 signatures14
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/64b9835344669837dfc0eff895ad3deb3689e914d87c07ced068a68f9c772dec
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/64b9835344669837dfc0eff895ad3deb3689e914d87c07ced068a68f9c772dec/
Verdict:
Malicious
Threat:
HEUR:Backdoor.Linux.Gafgyt
Link:
https://tip.neiki.dev/file/64b9835344669837dfc0eff895ad3deb3689e914d87c07ced068a68f9c772dec
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-07-31 19:21:23 UTC
File Type:
ELF32 Big (Exe)
AV detection:
17 of 37 (45.95%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ms4ygu2em2mdpx6a574jllj55m3it2iu3b6aptwqncti7hdxfxwa._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai linux
Link:
https://tria.ge/reports/250731-x2sx2a1jz4/
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-6981989-0
YARA:
n/a
Link:
https://app.threat.zone/submission/0c1dad71-e6e5-4c9c-a742-8d72243b9a44
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/64b9835344669837dfc0eff895ad3deb3689e914d87c07ced068a68f9c772dec

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:ELF_Mirai
Create hunting rule
Author:NDA0E
Description:Detects multiple Mirai 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 64b9835344669837dfc0eff895ad3deb3689e914d87c07ced068a68f9c772dec

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3593831/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3592543/

Comments