MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b81f142e47c3706ff91a9f570b4f513dfe99b053a5fd0235efe20b7dbb93cc94. 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: 9


Intelligence 9 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b81f142e47c3706ff91a9f570b4f513dfe99b053a5fd0235efe20b7dbb93cc94
SHA3-384 hash: 03dc7d6861694a767327c5e06b165d2d8ca0faa730563c4d4f4597764612160fa4a6945a3fa38c70659d5d7e348d2e86
SHA1 hash: 3544c0dc602d611f7fefc771be0cda4a0290a883
MD5 hash: edab38f1a20851dd18194528414fecae
humanhash: apart-alaska-venus-asparagus
File name:morte.arc
Download: download sample
Signature Mirai
Create hunting rule
File size:116'160 bytes
First seen:2025-11-08 12:08:14 UTC
Last seen:2025-11-09 00:15:20 UTC
File type: elf
MIME type:application/x-executable
ssdeep 1536:BF38syuPgwHMD7qEywla4Wq0z0zkppYjjHBZibxZJ8EkgE/LWk:T38syV0MfywlBtMhihZiqbgEq
TLSH T147B3AEDBF7072191C86247F007C74BDE3E6322119E6BA8E76C0E6A7A0A790DF5916391
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 :
2
# of downloads :
111
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.30435.LC.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Linux.Siggen.9999-6.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-7100807-0
Create hunting rule

Unix.Dropper.Mirai-7135897-0
Create hunting rule

Unix.Dropper.Mirai-7135901-0
Create hunting rule

Unix.Dropper.Mirai-7135909-0
Create hunting rule

Unix.Trojan.Mirai-7135916-0
Create hunting rule

Unix.Dropper.Mirai-7135918-0
Create hunting rule

Unix.Dropper.Mirai-7135954-0
Create hunting rule

Unix.Dropper.Mirai-7136016-0
Create hunting rule

Unix.Dropper.Mirai-7136028-0
Create hunting rule

Unix.Trojan.Mirai-8025795-0
Create hunting rule

Unix.Dropper.Mirai-10007027-0
Create hunting rule

Unix.Trojan.Mirai-10009361-0
Create hunting rule

Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
gafgyt masquerade mirai obfuscated
Link:
https://www.filescan.io/uploads/690f32f08938e2fe22162c46/reports/9c805c51-473c-4f5d-9d02-fd90e2788249/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-11-08T10:20:00Z UTC
Last seen:
2025-11-09T01:27:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/b81f142e47c3706ff91a9f570b4f513dfe99b053a5fd0235efe20b7dbb93cc94/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/29522e97-0f73-4d59-af97-2f6a4e86f1a0
Behavior Graph:
Download SVG
%3 guuid=09c4c83b-1900-0000-960a-19d1f90a0000 pid=2809 /usr/bin/sudo guuid=d9d40a3e-1900-0000-960a-19d1fc0a0000 pid=2812 /tmp/sample.bin guuid=09c4c83b-1900-0000-960a-19d1f90a0000 pid=2809->guuid=d9d40a3e-1900-0000-960a-19d1fc0a0000 pid=2812 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/757adddc-f6e8-440a-8f04-2f1ae28dc247
Result
Threat name:
n/a
Detection:
malicious
Classification:
n/a
Score:
56 / 100
Link:
https://www.joesandbox.com/analysis/1810520
Signature
Antivirus / Scanner detection for submitted sample
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b81f142e47c3706ff91a9f570b4f513dfe99b053a5fd0235efe20b7dbb93cc94
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b81f142e47c3706ff91a9f570b4f513dfe99b053a5fd0235efe20b7dbb93cc94/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-11-08 12:09:21 UTC
File Type:
ELF32 Little (Exe)
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xaprilshynyg76i2t5lqwt2rhx7jtmctux6qenpp4ifx3o4tzska._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai linux
Link:
https://tria.ge/reports/251108-pblf9sykgk/
Malware Config
C2 Extraction:
mortex.duckdns.org
Verdict:
Malicious
Tags:
backdoor Unix.Trojan.Mirai-7100807-0
YARA:
MAL_ELF_Xlogin_Nov24_1
Link:
https://app.threat.zone/submission/ba4774d4-4348-45cb-a75a-4d971562f914
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:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:F01_s1ckrule
Create hunting rule
Author:s1ckb017
Rule name:MAL_ELF_Xlogin_Nov24_1
Create hunting rule
Author:Florian Roth
Description:Detects xlogin backdoor samples
Reference:https://blog.sekoia.io/solving-the-7777-botnet-enigma-a-cybersecurity-quest/
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 b81f142e47c3706ff91a9f570b4f513dfe99b053a5fd0235efe20b7dbb93cc94

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3695596/
  
Delivery method
Distributed via web download

Comments