MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 af5ef5773b4f244557be125fa269d59bfa897f6ad5ddbbd600a224a7fe38fdb8. 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: 6


Intelligence 6 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: af5ef5773b4f244557be125fa269d59bfa897f6ad5ddbbd600a224a7fe38fdb8
SHA3-384 hash: 19e06a3165f3b13f63e2be27848456d2e5df4e97e65aa40f1ff84d20d247811cc4628a0dac1b6f652c77e328665574c3
SHA1 hash: 4ae7f91a4e0ab47e0405b05e41c78ec7ce777950
MD5 hash: 26b33ee6fbe61d956d6ab65870aa1c24
humanhash: iowa-carolina-alaska-ohio
File name:top1miku.m68k
Download: download sample
Signature Mirai
Create hunting rule
File size:172'032 bytes
First seen:2025-07-18 05:22:51 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:7+C8phxBXx7fRRFP6e+35E517droNmwiVsjbiwLfTcffyCPmwZ:q7pl6e+JEBMNmWLfT6yCey
TLSH T15FF339C7F900DDBEF80AE73748570905B230B7A214825B37625B792BED3E1990977E86
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
20
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:
masquerade
Link:
https://www.filescan.io/uploads/6879da417bc45bdee1b09254/reports/4a424634-e570-4047-9552-aa50b58d18c6/overview
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/d95eeccc-1788-4323-829c-a82019ac8f7a
Behavior Graph:
Download SVG
%3 guuid=4b14d5cb-1900-0000-55c3-328c4c080000 pid=2124 /usr/bin/sudo guuid=76bb40ce-1900-0000-55c3-328c54080000 pid=2132 /tmp/sample.bin guuid=4b14d5cb-1900-0000-55c3-328c4c080000 pid=2124->guuid=76bb40ce-1900-0000-55c3-328c54080000 pid=2132 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/16acc21d-b54c-4bd8-be77-38440b7554dd
Result
Threat name:
Gafgyt, Mirai, Xmrig
Create hunting rule
Detection:
malicious
Classification:
troj.evad.mine
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1739351
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: 1739351 Sample: top1miku.m68k.elf Startdate: 18/07/2025 Architecture: LINUX Score: 100 32 top1miku.duckdns.org 2->32 34 top1miku.duckdns.org 161.97.77.188, 2004, 49344, 49346 CONTABODE United States 2->34 36 185.125.190.26, 443 CANONICAL-ASGB United Kingdom 2->36 44 Multi AV Scanner detection for submitted file 2->44 46 Yara detected Gafgyt 2->46 48 Yara detected Mirai 2->48 50 Yara detected Xmrig cryptocurrency miner 2->50 10 top1miku.m68k.elf 2->10         started        signatures3 52 Uses dynamic DNS services 32->52 process4 signatures5 60 Found strings related to Crypto-Mining 10->60 13 top1miku.m68k.elf 10->13         started        process6 process7 15 top1miku.m68k.elf 13->15         started        file8 30 /etc/init.d/sysd, POSIX 15->30 dropped 38 Sample tries to set files in /etc globally writable 15->38 40 Drops files in suspicious directories 15->40 42 Sample tries to persist itself using System V runlevels 15->42 19 top1miku.m68k.elf sh 15->19         started        21 top1miku.m68k.elf 15->21         started        signatures9 process10 signatures11 24 sh cp 19->24         started        54 Sample deletes itself 21->54 process12 file13 28 /usr/bin/.sh, ELF 24->28 dropped 56 Drops invisible ELF files 24->56 58 Drops files in suspicious directories 24->58 signatures14
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/af5ef5773b4f244557be125fa269d59bfa897f6ad5ddbbd600a224a7fe38fdb8
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/af5ef5773b4f244557be125fa269d59bfa897f6ad5ddbbd600a224a7fe38fdb8/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-07-18 05:23:14 UTC
File Type:
ELF32 Big (Exe)
AV detection:
20 of 38 (52.63%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=v5ppk5z3j4sekv56cjp2e2ovtp5is73k2xo3xvqauiskp7ry7w4a._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
linux
Link:
https://tria.ge/reports/250718-f279aavqv6/
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-6981989-0
YARA:
n/a
Link:
https://app.threat.zone/submission/cb9d5b77-f541-4ef0-b0c4-4f616fa4ab2e
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/af5ef5773b4f244557be125fa269d59bfa897f6ad5ddbbd600a224a7fe38fdb8

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

sh f39a63a0b0ac1991e58d9c77a0f01bcd531762120db7f79f804ee61733edc54a

Mirai

elf af5ef5773b4f244557be125fa269d59bfa897f6ad5ddbbd600a224a7fe38fdb8

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3585018/
  
Delivery method
Distributed via web download
  
Dropped by
SHA256 f39a63a0b0ac1991e58d9c77a0f01bcd531762120db7f79f804ee61733edc54a
  
Dropped by
MD5 68718ed0d4b7e68279de80513b081797
  
Dropped by
SHA256 c1cb897dce4a521aa9d2a7c902f8c3474db7001d0cb36c7cb0ad7babef1cb5c0
  
Dropped by
MD5 a8de2b3488f586bb1cd4b63c64a00127
  
Dropped by
SHA256 94e377a0a1aa9ca326ce68fbc2031da14cda32f3f70b24b3406a374b9a576259
  
Dropped by
MD5 4d843b6f795575a508617f1956dd41ed
  
URLhaus
https://urlhaus.abuse.ch/url/3585406/
  
URLhaus
https://urlhaus.abuse.ch/url/3585408/
  
URLhaus
https://urlhaus.abuse.ch/url/3585416/

Comments