MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3bd7dcbafa3470bfe71bcebe9cc1c57b9c03a556c9ee53d73bed5e2dbc7f03ba. 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: 13


Intelligence 13 IOCs YARA 12 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3bd7dcbafa3470bfe71bcebe9cc1c57b9c03a556c9ee53d73bed5e2dbc7f03ba
SHA3-384 hash: 574a532d76b957a6f44df334cd3e6d7b7f203de70a19dfb30f52f938b64df86f41f7e13e35fee637657ed9a5919f69f9
SHA1 hash: 6eea88914f195a2039c02182f8d79f904de8d164
MD5 hash: d77aaa865abfd3a05acdc8f11f965a43
humanhash: minnesota-kansas-south-three
File name:colonna.i686
Download: download sample
Signature Mirai
Create hunting rule
File size:107'632 bytes
First seen:2025-12-10 05:38:38 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:QGi9owphpfRqit49qegk0RNFFm8UBsl5MF1o:QGi9owphpfIitRegjcOl5MF2
TLSH T169B33A44F58BC1F6D84B483050AAB33FDF31DAA59271966DDF695F32CA27602821379C
telfhash t1324113b9b2760ce9abd0a841f28e1b60ad1eb73b105076f305f35825316b98052abc3c
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 :
1
# of downloads :
47
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/783640fc-1605-4040-bbbc-2275af278e14/
Detection(s):
Sanesecurity.Malware.29325.LC.Pl.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Linux.Mirai-81.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.28940.LC.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-9441505-0
Create hunting rule

Unix.Trojan.Mirai-10011027-0
Create hunting rule

Unix.Trojan.Mirai-10011918-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Runs as daemon
Opens a port
Changes access rights for a written file
Manages services
Launching a process
Collects information on the OS
Sets a written file as executable
Creating a file
Changes the time when the file was created, accessed, or modified
Connection attempt
Writes files to system directory
Substitutes an application name
Creates or modifies files in /cron to set up autorun
Creates or modifies files in /init.d to set up autorun
Creates or modifies symbolic links in /init.d to set up autorun
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade mirai
Link:
https://www.filescan.io/uploads/693907851eac7b9b76a30113/reports/ee62250e-a56b-4410-b4f4-4a108e40d591/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-12-10T03:54:00Z UTC
Last seen:
2025-12-10T04:43:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/3bd7dcbafa3470bfe71bcebe9cc1c57b9c03a556c9ee53d73bed5e2dbc7f03ba/results?tab=lookup
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/a60cb7ab-6d1f-4277-9622-3682a7c0f999
Result
Threat name:
Gafgyt, Mirai, Xmrig
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad.mine
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1829994
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Drops files in suspicious directories
Drops invisible ELF files
Executes the "crontab" command typically for achieving persistence
Found strings related to Crypto-Mining
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample tries to persist itself using /etc/profile
Sample tries to persist itself using cron
Sample tries to persist itself using System V runlevels
Uses known network protocols on non-standard ports
Yara detected Gafgyt
Yara detected Mirai
Yara detected Xmrig cryptocurrency miner
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1829994 Sample: colonna.i686.elf Startdate: 10/12/2025 Architecture: LINUX Score: 100 78 194.69.203.32, 3778, 54556, 54558 NASTECHBG Bulgaria 2->78 80 109.202.202.202, 80 INIT7CH Switzerland 2->80 82 4 other IPs or domains 2->82 84 Malicious sample detected (through community Yara rule) 2->84 86 Antivirus detection for dropped file 2->86 88 Antivirus / Scanner detection for submitted sample 2->88 90 5 other signatures 2->90 12 colonna.i686.elf 2->12         started        15 systemd snapd-env-generator 2->15         started        17 systemd snapd-env-generator 2->17         started        19 6 other processes 2->19 signatures3 process4 signatures5 108 Found strings related to Crypto-Mining 12->108 21 colonna.i686.elf 12->21         started        25 colonna.i686.elf 12->25         started        27 colonna.i686.elf 12->27         started        process6 file7 70 /etc/profile.d/.kworker.sh, ASCII 21->70 dropped 72 /etc/init.d/.kworker, POSIX 21->72 dropped 94 Sample tries to persist itself using /etc/profile 21->94 96 Drops files in suspicious directories 21->96 29 colonna.i686.elf sh 21->29         started        31 colonna.i686.elf sh 21->31         started        33 colonna.i686.elf sh 21->33         started        35 3 other processes 21->35 signatures8 process9 process10 37 sh crontab 29->37         started        41 sh 29->41         started        43 sh cp 31->43         started        45 sh update-rc.d 33->45         started        47 sh systemctl 35->47         started        49 sh systemctl 35->49         started        file11 74 /var/spool/cron/crontabs/tmp.T3EMS2, ASCII 37->74 dropped 98 Sample tries to persist itself using cron 37->98 100 Executes the "crontab" command typically for achieving persistence 37->100 51 sh crontab 41->51         started        54 sh grep 41->54         started        76 /usr/bin/.kworker, ELF 43->76 dropped 102 Drops invisible ELF files 43->102 104 Drops files in suspicious directories 43->104 106 Sample tries to persist itself using System V runlevels 45->106 56 update-rc.d systemctl 45->56         started        58 systemctl systemd-sysv-install 47->58         started        signatures12 process13 signatures14 92 Executes the "crontab" command typically for achieving persistence 51->92 60 systemd-sysv-install update-rc.d 58->60         started        62 systemd-sysv-install update-rc.d 58->62         started        64 systemd-sysv-install getopt 58->64         started        process15 process16 66 update-rc.d systemctl 60->66         started        68 update-rc.d systemctl 62->68         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/3bd7dcbafa3470bfe71bcebe9cc1c57b9c03a556c9ee53d73bed5e2dbc7f03ba
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3bd7dcbafa3470bfe71bcebe9cc1c57b9c03a556c9ee53d73bed5e2dbc7f03ba/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-12-10 05:39:17 UTC
File Type:
ELF32 Little (Exe)
AV detection:
27 of 38 (71.05%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hpl5zox2gryl7zy3z27jzqofpooahjkwzhxfhvz35vpc3pd7ao5a._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet:colonna botnet defense_evasion discovery execution linux persistence privilege_escalation
Link:
https://tria.ge/reports/251210-gceq4svkat/
Behaviour
Reads runtime system information
Changes its process name
Reads system network configuration
Modifies Bash startup script
Creates/modifies Cron job
Creates/modifies environment variables
Enumerates active TCP sockets
Enumerates running processes
Modifies init.d
Modifies rc script
Modifies systemd
Write file to user bin folder
Writes file to system bin folder
Modifies Watchdog functionality
Mirai
Mirai family
Verdict:
Malicious
Tags:
trojan gafgyt mirai Unix.Trojan.Mirai-9441505-0
YARA:
Linux_Trojan_Gafgyt_28a2fe0c Linux_Trojan_Gafgyt_ea92cca8 Linux_Trojan_Mirai_268aac0b Linux_Trojan_Mirai_0cb1699c Linux_Trojan_Mirai_70ef58f1 Linux_Trojan_Mirai_2e3f67a9 Linux_Trojan_Mirai_0d73971c Linux_Trojan_Mirai_88de437f Linux_Trojan_Mirai_cc93863b Linux_Gafgyt_May_2024
Link:
https://app.threat.zone/submission/0a80c1a4-e467-4352-8209-0ea6825e20ae
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.09
Link:
https://yomi.yoroi.company/submissions/3bd7dcbafa3470bfe71bcebe9cc1c57b9c03a556c9ee53d73bed5e2dbc7f03ba

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:Linux_Trojan_Mirai_0cb1699c
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_0d73971c
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_268aac0b
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_2e3f67a9
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_70ef58f1
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_88de437f
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_cc93863b
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 3bd7dcbafa3470bfe71bcebe9cc1c57b9c03a556c9ee53d73bed5e2dbc7f03ba

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3726916/
  
Delivery method
Distributed via web download

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