MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a4b7613ac90991a7e31f7eeed6ec1c457f68e4eebdb6607c11351ba8ace26b87. 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: 7


Intelligence 7 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a4b7613ac90991a7e31f7eeed6ec1c457f68e4eebdb6607c11351ba8ace26b87
SHA3-384 hash: 6cee68ca7a48a1adff6a186a61d73e471e2a61d6253349ceb58c41fba6922afb790f350d0d97f1c9abebae893c7eefb1
SHA1 hash: a4100d60d3f6c19a3325f43eecfa6c2423c0bb52
MD5 hash: eee73fd3823f78da899effbf8a4cbbd8
humanhash: sad-avocado-artist-double
File name:morte.m68k
Download: download sample
Signature Mirai
Create hunting rule
File size:120'296 bytes
First seen:2025-12-03 22:40:25 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:UL09p7QKwxvJdqPOFF57NhfiZRhUAuloTxEvahKJ3owyYbfMUnV1wCjXZZmVAJ6V:Wk7QKwxvJdqPOFF57NhfiZRhUAuloTxP
TLSH T184C34C8AF4018E7DF85FD9B641274D09F920939166930F6A22ABFD93BC331A4BD13D85
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
59
Origin country :
DE DE
Vendor Threat Intelligence
Malware configuration found for:
Mirai
Details
Mirai
an XOR decryption key and at least a c2 socket address
Link:
https://research.acce.ciphertechsolutions.com/results/7aea332f-2beb-4c2c-80f5-e8d0d8d355cf/
Gathering data
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
masquerade
Link:
https://www.filescan.io/uploads/6930bc676019bc7a8f80f97f/reports/080f0286-2ef0-4e15-8bcf-5c9546172ac5/overview
Result
Gathering data
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/038be068-c54d-4942-b465-cea27aeec2bf
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/1825919
Signature
Antivirus / Scanner detection for submitted sample
Deletes system log files
Drops files in suspicious directories
Malicious sample detected (through community Yara rule)
Manipulation of devices in /dev
Sample tries to kill multiple processes (SIGKILL)
Sample tries to persist itself using System V runlevels
Sample tries to set files in /etc globally writable
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1825919 Sample: morte.m68k.elf Startdate: 03/12/2025 Architecture: LINUX Score: 88 39 65.222.202.53, 80 CAPEREGIONALHEALTHSYSTEMUS United States 2->39 41 185.125.190.26, 443 CANONICAL-ASGB United Kingdom 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 Antivirus / Scanner detection for submitted sample 2->45 47 Yara detected Mirai 2->47 10 morte.m68k.elf 2->10         started        12 xfce4-panel wrapper-2.0 2->12         started        14 xfce4-panel wrapper-2.0 2->14         started        16 6 other processes 2->16 signatures3 process4 process5 18 morte.m68k.elf 10->18         started        20 wrapper-2.0 xfpm-power-backlight-helper 12->20         started        process6 22 morte.m68k.elf 18->22         started        file7 37 /etc/init.d/sysd, POSIX 22->37 dropped 49 Sample tries to set files in /etc globally writable 22->49 51 Drops files in suspicious directories 22->51 53 Sample tries to persist itself using System V runlevels 22->53 26 morte.m68k.elf 22->26         started        28 morte.m68k.elf sh 22->28         started        signatures8 process9 process10 30 morte.m68k.elf 26->30         started        33 morte.m68k.elf 26->33         started        35 sh cp 28->35         started        signatures11 55 Manipulation of devices in /dev 30->55 57 Deletes system log files 30->57 59 Sample tries to kill multiple processes (SIGKILL) 33->59
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/a4b7613ac90991a7e31f7eeed6ec1c457f68e4eebdb6607c11351ba8ace26b87
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a4b7613ac90991a7e31f7eeed6ec1c457f68e4eebdb6607c11351ba8ace26b87/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-12-03 22:41:20 UTC
File Type:
ELF32 Big (Exe)
AV detection:
22 of 36 (61.11%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=us3wcowjbgi2pyy7p3xnn3a4iv7wrzhoxw3ga7argun2rlhcnodq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:lzrd linux
Link:
https://tria.ge/reports/251203-2n3yaswldm/
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:botnet_Yakuza
Create hunting rule
Author:NDA0E
Description:Yakuza botnet
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Trojan_Gafgyt_28a2fe0c
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Gafgyt_ea92cca8
Create hunting rule
Author:Elastic Security
Rule name:SUSP_XORed_Mozilla_Oct19
Create hunting rule
Author:Florian Roth
Description:Detects suspicious single byte XORed keyword 'Mozilla/5.0' - it uses yara's XOR modifier and therefore cannot print the XOR key. You can use the CyberChef recipe linked in the reference field to brute force the used key.
Reference:https://gchq.github.io/CyberChef/#recipe=XOR_Brute_Force()
Rule name:SUSP_XORed_Mozilla_RID2DB4
Create hunting rule
Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
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 a4b7613ac90991a7e31f7eeed6ec1c457f68e4eebdb6607c11351ba8ace26b87

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3720214/
  
Delivery method
Distributed via web download

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