MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4f3a6d9daa6c9b92a5d8bd69ff6c3e1ec86f365d8dfa72fa2733dffe6e4c48f4. 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: 12


Intelligence 12 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4f3a6d9daa6c9b92a5d8bd69ff6c3e1ec86f365d8dfa72fa2733dffe6e4c48f4
SHA3-384 hash: 854d14c0b8f0766f4b9fc64e91647ed479e9160803433557eb912994c16e6aea4d72d7fa6377345d514bb01a162cb5f9
SHA1 hash: 17b9afffc69bd1a3e5a3e9967d562adfe137a5cd
MD5 hash: 1bbcf82501aaa64f627d00f0e04d38fe
humanhash: florida-bravo-diet-papa
File name:6
Download: download sample
Signature Mirai
Create hunting rule
File size:104'436 bytes
First seen:2025-01-10 23:51:05 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:JrnjCmuVrwf9AZjFBl7anQv3TeSaeU5nghh4amvR3G9alAHinanHpEFvlLn3S:lOk1iEnONU5nIh4am9qOanHO3Li
TLSH T105A3F98AF8816B11C6D515BBFE1F014E33479BA8E3EA72139D141B6477CAA1F0F27606
telfhash t1aac080ba093405dc2f54085800cc4d1459dd7927065d5405e61c351f54864952457d5a
Magika elf
Reporter abuse_ch
Tags:elf mirai

Intelligence

File Origin
# of uploads :
1
# of downloads :
129
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Unix.Trojan.Mirai-9441505-0
Create hunting rule

Verdict:
Clean
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6781b2a42c8240e189bbb7f6linux22vpnfull_triage
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Changes access rights for a written file
Changes the time when the file was created, accessed, or modified
Creating a file in the %temp% directory
Launching a process
Manages services
Kills processes
Sends data to a server
Opens a port
Creating a file
Creates or modifies files in /cron to set up autorun
Substitutes an application name
Creates or modifies files in /init.d to set up autorun
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-debug
Link:
https://www.filescan.io/uploads/6781b2a2ad7b3f665d8e4c02/reports/ad95cc29-9c24-4170-a753-9dc4ececf6e5/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
not packed
Botnet:
unknown
Number of open files:
4
Number of processes launched:
0
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/4f3a6d9daa6c9b92a5d8bd69ff6c3e1ec86f365d8dfa72fa2733dffe6e4c48f4
Behaviour
Information Gathering
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Verdict:
UNKNOWN
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/88b0e8ae-3098-4c12-a9b9-88df4330bd51
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/1588488
Signature
Antivirus / Scanner detection for submitted sample
Connects to many ports of the same IP (likely port scanning)
Drops files in suspicious directories
Executes the "crontab" command typically for achieving persistence
Multi AV Scanner detection for submitted file
Sample tries to kill multiple processes (SIGKILL)
Sample tries to persist itself using cron
Sample tries to persist itself using System V runlevels
Suricata IDS alerts for network traffic
Uses known network protocols on non-standard ports
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1588488 Sample: 6.elf Startdate: 11/01/2025 Architecture: LINUX Score: 92 55 41.127.69.1, 35055, 37215, 50538 MTNNS-ASZA South Africa 2->55 57 151.142.114.112, 35055, 37215, 60530 HOMEDEPOTNETUS United States 2->57 59 98 other IPs or domains 2->59 61 Suricata IDS alerts for network traffic 2->61 63 Antivirus / Scanner detection for submitted sample 2->63 65 Multi AV Scanner detection for submitted file 2->65 67 2 other signatures 2->67 9 6.elf 2->9         started        13 xfce4-panel wrapper-2.0 2->13         started        15 xfce4-panel wrapper-2.0 2->15         started        17 6 other processes 2->17 signatures3 process4 file5 49 /tmp/crontab.tmp, ASCII 9->49 dropped 51 /etc/init.d/hello, Bourne-Again 9->51 dropped 69 Sample tries to kill multiple processes (SIGKILL) 9->69 71 Drops files in suspicious directories 9->71 19 6.elf sh 9->19         started        21 6.elf sh 9->21         started        23 6.elf 9->23         started        25 2 other processes 9->25 signatures6 process7 process8 27 sh crontab 19->27         started        31 sh update-rc.d 21->31         started        33 6.elf 23->33         started        35 sh systemctl 25->35         started        37 sh systemctl 25->37         started        file9 53 /var/spool/cron/crontabs/tmp.oBmXYA, ASCII 27->53 dropped 73 Sample tries to persist itself using cron 27->73 75 Executes the "crontab" command typically for achieving persistence 27->75 77 Sample tries to persist itself using System V runlevels 31->77 39 update-rc.d systemctl 31->39         started        41 6.elf 33->41         started        43 6.elf 33->43         started        45 6.elf 33->45         started        47 6.elf 33->47         started        signatures10 process11
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/4f3a6d9daa6c9b92a5d8bd69ff6c3e1ec86f365d8dfa72fa2733dffe6e4c48f4
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4f3a6d9daa6c9b92a5d8bd69ff6c3e1ec86f365d8dfa72fa2733dffe6e4c48f4/
Threat name:
Linux.Trojan.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-01-10 23:52:04 UTC
File Type:
ELF32 Little (Exe)
AV detection:
16 of 38 (42.11%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=j45g3hnknsnzfjoyxvu763b6d3eg6ns5rx5hf6rhgpp743smjd2a._file
Result
Malware family:
n/a
Score:
  9/10
Tags:
discovery execution persistence privilege_escalatio privilege_escalation
Link:
https://tria.ge/reports/250110-3wpw3stmex/
Behaviour
Command and Scripting Interpreter: Unix Shell
Enumerates kernel/hardware configuration
Reads runtime system information
Writes file to tmp directory
Changes its process name
Creates/modifies Cron job
Enumerates running processes
Modifies init.d
Modifies rc script
Modifies systemd
Contacts a large (74126) amount of remote hosts
Creates a large amount of network flows
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-9441505-0
YARA:
n/a
Link:
https://app.threat.zone/submission/445142a0-d50b-4329-9c90-4b9d7867b149
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Mirai
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/4f3a6d9daa6c9b92a5d8bd69ff6c3e1ec86f365d8dfa72fa2733dffe6e4c48f4

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:CVE_2017_17215
Create hunting rule
Author:NDA0E
Description:Detects exploitation attempt of CVE-2017-17215
Rule name:ELF_Mirai
Create hunting rule
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Generic_Threat_8299c877
Create hunting rule
Author:Elastic Security
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 4f3a6d9daa6c9b92a5d8bd69ff6c3e1ec86f365d8dfa72fa2733dffe6e4c48f4

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3393726/
  
Delivery method
Distributed via web download

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