MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a4d6b759738c7139ba12d12e0224a02f210d597b54c43028d51166507f565452. 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: a4d6b759738c7139ba12d12e0224a02f210d597b54c43028d51166507f565452
SHA3-384 hash: f28f7f9d825beef54cf4a344faa8d2619f0a51357b97b03f2ddec79238af67dffe32becd3b9b3cd105894e583d9e6384
SHA1 hash: b632681febcd3c15858898193dc97341dd82e8e3
MD5 hash: 7b42d829adca21ec6a2dba95befb134b
humanhash: comet-zebra-massachusetts-texas
File name:morte.mips
Download: download sample
Signature Mirai
Create hunting rule
File size:122'404 bytes
First seen:2025-07-08 17:14:28 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:RkbCAv+6CcPTpUq19wrRUU4J8HSOPP0pKneuleyXnowyKY:OCAv+0rpUXFUU4JWSOPPdneLwvY
TLSH T199C3C74D6E318F7DFBA8C63447B38F25A75823D636E1DA85D1ACD6001E7024E245FBA8
telfhash t11521c51c4a7822f097721c9d56deff72d59030de0b212e37ce00a5a9aa6dd829d00c1c
Magika elf
Reporter abuse_ch
Tags:elf mirai upx-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 19156bf22314ec78c26630536480b209d4645506a626938da34fa2e8646e155d
File size (compressed) :43'964 bytes
File size (de-compressed) :124'096 bytes
Format:linux/mips
Packed file: 19156bf22314ec78c26630536480b209d4645506a626938da34fa2e8646e155d

Intelligence

File Origin
# of uploads :
1
# of downloads :
16
Origin country :
NL NL
Vendor Threat Intelligence
Verdict:
Clean
Score:
84.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=686d523a900df8e7f8689ddflinux22vpnfull_triage
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:

Behaviour
Opens a port
Sends data to a server
Deletes a file
Sets a written file as executable
Receives data from a server
Launching a process
Removes directories
Deleting a recently created file
Connection attempt
DNS request
Kills processes
Runs as daemon
Removes directories from a temporary directory
Substitutes an application name
Writes files to system directory
Creates or modifies files in /init.d to set up autorun
Creates or modifies symbolic links in /init.d to set up autorun
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
botnet lolbin mirai remote
Link:
https://www.filescan.io/uploads/686d524390b9181d715e11bf/reports/8de5836d-a8d6-4934-a356-cffe620842ad/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
mips
Packer:
not packed
Botnet:
unknown
Number of open files:
171
Number of processes launched:
8
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/a4d6b759738c7139ba12d12e0224a02f210d597b54c43028d51166507f565452
Behaviour
Persistence
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/a3d6027b-1c0a-48a2-893c-95751799c7c6
Behavior Graph:
Download SVG
%3 guuid=8f9911ee-1800-0000-fa1e-ab91f40a0000 pid=2804 /usr/bin/sudo guuid=ce81aef0-1800-0000-fa1e-ab91fc0a0000 pid=2812 /tmp/sample.bin guuid=8f9911ee-1800-0000-fa1e-ab91f40a0000 pid=2804->guuid=ce81aef0-1800-0000-fa1e-ab91fc0a0000 pid=2812 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/678d7891-2c98-4047-85df-097b7ec37456
Result
Threat name:
Mirai, Xmrig
Create hunting rule
Detection:
malicious
Classification:
troj.evad.mine
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1731209
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Deletes system log files
Drops files in suspicious directories
Drops invisible ELF files
Found strings related to Crypto-Mining
Malicious sample detected (through community Yara rule)
Manipulation of devices in /dev
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
Yara detected Mirai
Yara detected Xmrig cryptocurrency miner
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1731209 Sample: morte.mips.elf Startdate: 08/07/2025 Architecture: LINUX Score: 100 44 109.202.202.202, 80 INIT7CH Switzerland 2->44 46 65.222.202.53, 80 CAPEREGIONALHEALTHSYSTEMUS United States 2->46 48 4 other IPs or domains 2->48 58 Malicious sample detected (through community Yara rule) 2->58 60 Antivirus detection for dropped file 2->60 62 Antivirus / Scanner detection for submitted sample 2->62 64 3 other signatures 2->64 10 morte.mips.elf 2->10         started        13 dash rm 2->13         started        15 dash rm 2->15         started        17 python3.8 dpkg 2->17         started        signatures3 process4 signatures5 72 Found strings related to Crypto-Mining 10->72 19 morte.mips.elf 10->19         started        21 morte.mips.elf 10->21         started        process6 process7 23 morte.mips.elf 19->23         started        file8 42 /etc/init.d/sysd, POSIX 23->42 dropped 66 Sample tries to set files in /etc globally writable 23->66 68 Drops files in suspicious directories 23->68 70 Sample tries to persist itself using System V runlevels 23->70 27 morte.mips.elf sh 23->27         started        29 morte.mips.elf 23->29         started        signatures9 process10 signatures11 32 sh cp 27->32         started        74 Sample deletes itself 29->74 36 morte.mips.elf 29->36         started        38 morte.mips.elf 29->38         started        process12 file13 40 /usr/bin/.sh, ELF 32->40 dropped 50 Drops invisible ELF files 32->50 52 Drops files in suspicious directories 32->52 54 Manipulation of devices in /dev 36->54 56 Deletes system log files 36->56 signatures14
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/a4d6b759738c7139ba12d12e0224a02f210d597b54c43028d51166507f565452
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a4d6b759738c7139ba12d12e0224a02f210d597b54c43028d51166507f565452/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-07-08 17:15:39 UTC
File Type:
ELF32 Big (Exe)
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=utllowltrryttoqs2exaejfaf4qq2wl3ktcdakgvcftfa72wkrja._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet credential_access defense_evasion discovery persistence
Link:
https://tria.ge/reports/250708-vstf4avxct/
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
Write file to user bin folder
Writes file to system bin folder
Deletes itself
Modifies Watchdog functionality
Mirai
Mirai family
Verdict:
Malicious
Tags:
botnet mirai Unix.Trojan.Mirai-7100807-0
YARA:
Mirai_Botnet_Malware
Link:
https://app.threat.zone/submission/7dc7ab2a-5eeb-4092-a890-757a35f9c672
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/a4d6b759738c7139ba12d12e0224a02f210d597b54c43028d51166507f565452

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:Mirai_Botnet_Malware
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects Mirai Botnet Malware
Reference:Internal Research
Rule name:Mirai_Botnet_Malware_RID2EF6
Create hunting rule
Author:Florian Roth
Description:Detects Mirai Botnet Malware
Reference:Internal Research
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 19156bf22314ec78c26630536480b209d4645506a626938da34fa2e8646e155d

Mirai

elf a4d6b759738c7139ba12d12e0224a02f210d597b54c43028d51166507f565452

(this sample)

  
Dropped by
SHA256 19156bf22314ec78c26630536480b209d4645506a626938da34fa2e8646e155d
  
URLhaus
https://urlhaus.abuse.ch/url/3570544/
  
Delivery method
Distributed via web download
  
Dropped by
MD5 2c56ece685e4413e75cc3025f5f18172
  
URLhaus
https://urlhaus.abuse.ch/url/3579393/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh

Comments