MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b20f0db0a50071a99d9b475f3bedc2ca3c03fa2e1a874df9b9974e148afba509. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b20f0db0a50071a99d9b475f3bedc2ca3c03fa2e1a874df9b9974e148afba509
SHA3-384 hash: 9d3e3a6b4393c38e6903458bbd6605799e0944a39ac647b3c3c5dd172c191e95f5a50ca8b3f5539307ccc29122f0c56f
SHA1 hash: 74391d106e708652a0353969f264052e10eb5e91
MD5 hash: 73f5c15f3ea041c13ef0fa291de5c967
humanhash: louisiana-saturn-seven-oven
File name:morte.mips
Download: download sample
Signature Mirai
Create hunting rule
File size:47'080 bytes
First seen:2025-11-29 09:49:38 UTC
Last seen:2025-11-29 12:40:37 UTC
File type: elf
MIME type:application/x-executable
ssdeep 768:or1XPBfIZyn6FW/7iUPpNIq12j81ZjM/EifLQEBaKfJgGlzDpbuR1Jl:i1f1X6+Kh81iEXKdVJu7
TLSH T11323F1F55B9065C6D49A827123F44BE00F546B87EC207E667A43F7EA8C022F8BC67274
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 UPX
File size (compressed) :47'080 bytes
File size (de-compressed) :141'460 bytes
Format:linux/mips
Unpacked file: 9b10c48bad61fc3f6ef958b37b7e5b0da6a1455362ac1d4e6d90129958dc21b4

Intelligence

File Origin
# of uploads :
2
# of downloads :
60
Origin country :
DE DE
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Runs as daemon
Kills processes
Changes access rights for a written file
Launching a process
Sends data to a server
DNS request
Changes access rights for a file
Sets a written file as executable
Connection attempt
Substitutes an application name
Creates or modifies files in /init.d to set up autorun
Creates or modifies symbolic links in /init.d to set up autorun
Result
Gathering data
Verdict:
Malicious
File Type:
elf.32.be
First seen:
2025-11-29T00:47:00Z UTC
Last seen:
2025-11-29T01:34:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/b20f0db0a50071a99d9b475f3bedc2ca3c03fa2e1a874df9b9974e148afba509/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/ad97b6ec-a90d-4448-b992-34314ee1ccbb
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/1822769
Signature
Deletes system log files
Drops files in suspicious directories
Malicious sample detected (through community Yara rule)
Manipulation of devices in /dev
Multi AV Scanner detection for submitted file
Sample is packed with UPX
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: 1822769 Sample: morte.mips.elf Startdate: 29/11/2025 Architecture: LINUX Score: 88 31 185.125.190.26, 443 CANONICAL-ASGB United Kingdom 2->31 33 vserge42.bounceme.net 41.216.189.185, 12121, 57674, 57676 AS40676US South Africa 2->33 35 Malicious sample detected (through community Yara rule) 2->35 37 Multi AV Scanner detection for submitted file 2->37 39 Yara detected Mirai 2->39 41 Sample is packed with UPX 2->41 10 morte.mips.elf 2->10         started        signatures3 process4 process5 12 morte.mips.elf 10->12         started        process6 14 morte.mips.elf 12->14         started        file7 29 /etc/init.d/sysd, POSIX 14->29 dropped 47 Sample tries to set files in /etc globally writable 14->47 49 Drops files in suspicious directories 14->49 51 Sample tries to persist itself using System V runlevels 14->51 18 morte.mips.elf 14->18         started        20 morte.mips.elf sh 14->20         started        signatures8 process9 process10 22 morte.mips.elf 18->22         started        25 morte.mips.elf 18->25         started        27 sh cp 20->27         started        signatures11 43 Manipulation of devices in /dev 22->43 45 Deletes system log files 22->45
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/b20f0db0a50071a99d9b475f3bedc2ca3c03fa2e1a874df9b9974e148afba509
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b20f0db0a50071a99d9b475f3bedc2ca3c03fa2e1a874df9b9974e148afba509/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-11-29 05:43:14 UTC
File Type:
ELF32 Big (Exe)
AV detection:
19 of 36 (52.78%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wihq3mffaby2thm3i5ptx3oczi6ah6rodkdu36nzs5hbjcx3uueq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet credential_access discovery persistence upx
Link:
https://tria.ge/reports/251129-lt52vaxnek/
Behaviour
Reads runtime system information
System Network Configuration Discovery
Changes its process name
Reads system network configuration
Reads process memory
Enumerates active TCP sockets
Enumerates running processes
Modifies init.d
Modifies rc script
Mirai
Mirai family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/334c1ade-0865-4e27-9f75-fe716a7e9c2f
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/b20f0db0a50071a99d9b475f3bedc2ca3c03fa2e1a874df9b9974e148afba509

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:SUSP_ELF_LNX_UPX_Compressed_File
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects a suspicious ELF binary with UPX compression
Reference:Internal Research
Rule name:upx_packed_elf_v1
Create hunting rule
Author:RandomMalware

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Mirai

elf b20f0db0a50071a99d9b475f3bedc2ca3c03fa2e1a874df9b9974e148afba509

(this sample)

Mirai

elf 9b10c48bad61fc3f6ef958b37b7e5b0da6a1455362ac1d4e6d90129958dc21b4

  
URLhaus
https://urlhaus.abuse.ch/url/3720217/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 9b10c48bad61fc3f6ef958b37b7e5b0da6a1455362ac1d4e6d90129958dc21b4
  
Dropping
MD5 1bb92a73333b3230b3420190cca0aa90
  
URLhaus
https://urlhaus.abuse.ch/url/3720243/

Comments