MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a3c324d0f42b969e0c46cd76675304afd08214d1a873c82ca6eabd73bad82d21. 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: 11


Intelligence 11 IOCs YARA 11 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a3c324d0f42b969e0c46cd76675304afd08214d1a873c82ca6eabd73bad82d21
SHA3-384 hash: 10a5a8ea673bfd01aa91953e6146bb5b4a42503ef6fd1228618ad9acefbeb9e2be38292725e88cfd5a965e6bfffa655f
SHA1 hash: 6d86c84e5c9af54edac40ab2ba99265c105093a8
MD5 hash: b1e4d16cc0573aa488ba98b1a1e58e12
humanhash: fifteen-jupiter-oscar-vermont
File name:x86_32.uhavenobotsxd
Download: download sample
Signature Mirai
Create hunting rule
File size:74'740 bytes
First seen:2025-11-20 07:19:47 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:7ovvs3K4PGFrdOMiBzZCj5aeIn2iuqAQY/+2+TSdfbCEHwwEmkpP:eiK4+uzZCj5aeq2iuqXV2+udjbH+
TLSH T150736BC5E343C8F5FE6206B96237E73B46B2E5390125DF46CB64B935DC16A01A31A39C
telfhash t10731f8f619bd4cf8bbd49900c34f4fe1386ed67b29a076a0422359713393d925078c7a
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 :
49
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.30455.LC.BadVar.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-10001386-0
Create hunting rule

Unix.Trojan.Mirai-10010127-0
Create hunting rule

Unix.Trojan.Mirai-10017351-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Changes access rights for a written file
Sets a written file as executable
Changes the time when the file was created, accessed, or modified
Runs as daemon
Receives data from a server
Creating a file
Kills processes
Opens a port
Sends data to a server
Launching a process
Creates or modifies files in /cron to set up autorun
Writes files to system directory
Substitutes an application name
Performs a bruteforce attack in the network
Creates or modifies files in /init.d to set up autorun
Creates or modifies symbolic links in /init.d to set up autorun
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm mirai
Link:
https://www.filescan.io/uploads/691ec135699e1777a26eb277/reports/266a6c37-555a-4025-8a6a-7de05d581e3e/overview
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-11-20T05:38:00Z UTC
Last seen:
2025-11-20T06:31:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/a3c324d0f42b969e0c46cd76675304afd08214d1a873c82ca6eabd73bad82d21/results?tab=lookup
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/3c483625-e300-4d45-a59b-d1051a6be783
Result
Threat name:
n/a
Detection:
malicious
Classification:
spre.troj.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/1817548
Signature
Connects to many ports of the same IP (likely port scanning)
Drops files in suspicious directories
Drops invisible ELF files
Executes the "crontab" command typically for achieving persistence
Malicious sample detected (through community Yara rule)
Modifies the '.bashrc' or '.bash_profile' file typically for persisting actions
Sample reads /proc/mounts (often used for finding a writable filesystem)
Sample tries to persist itself using /etc/profile
Sample tries to persist itself using cron
Sample tries to persist itself using System V runlevels
Sample tries to set files in /etc globally writable
Suricata IDS alerts for network traffic
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1817548 Sample: x86_32.uhavenobotsxd.elf Startdate: 20/11/2025 Architecture: LINUX Score: 96 68 185.61.137.173 DOTSIPT Ukraine 2->68 70 94.154.35.153 SELECTELRU Ukraine 2->70 72 4 other IPs or domains 2->72 86 Suricata IDS alerts for network traffic 2->86 88 Malicious sample detected (through community Yara rule) 2->88 90 Connects to many ports of the same IP (likely port scanning) 2->90 10 x86_32.uhavenobotsxd.elf 2->10         started        13 dash rm 2->13         started        15 dash rm 2->15         started        signatures3 process4 signatures5 92 Sample reads /proc/mounts (often used for finding a writable filesystem) 10->92 17 x86_32.uhavenobotsxd.elf 10->17         started        process6 file7 56 /var/spool/cron/root, ASCII 17->56 dropped 58 /var/spool/cron/crontabs/root, ASCII 17->58 dropped 60 /root/.bashrc, ASCII 17->60 dropped 62 6 other malicious files 17->62 dropped 78 Sample tries to set files in /etc globally writable 17->78 80 Sample tries to persist itself using /etc/profile 17->80 82 Drops files in suspicious directories 17->82 84 3 other signatures 17->84 21 x86_32.uhavenobotsxd.elf sh 17->21         started        23 x86_32.uhavenobotsxd.elf sh 17->23         started        25 x86_32.uhavenobotsxd.elf 17->25         started        27 4 other processes 17->27 signatures8 process9 process10 29 sh crontab 21->29         started        33 sh 21->33         started        35 sh cp 23->35         started        37 x86_32.uhavenobotsxd.elf sh 25->37         started        39 x86_32.uhavenobotsxd.elf sh 25->39         started        41 x86_32.uhavenobotsxd.elf sh 25->41         started        43 x86_32.uhavenobotsxd.elf sh 25->43         started        45 x86_32.uhavenobotsxd.elf 27->45         started        47 2 other processes 27->47 file11 64 /var/spool/cron/crontabs/tmp.30gTie, ASCII 29->64 dropped 94 Sample tries to persist itself using cron 29->94 96 Executes the "crontab" command typically for achieving persistence 29->96 49 sh crontab 33->49         started        66 /usr/bin/.sh, ELF 35->66 dropped 98 Drops invisible ELF files 35->98 100 Drops files in suspicious directories 35->100 52 sh .sh 37->52         started        54 sh .sh 39->54         started        signatures12 process13 signatures14 74 Executes the "crontab" command typically for achieving persistence 49->74 76 Sample reads /proc/mounts (often used for finding a writable filesystem) 52->76
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/a3c324d0f42b969e0c46cd76675304afd08214d1a873c82ca6eabd73bad82d21
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a3c324d0f42b969e0c46cd76675304afd08214d1a873c82ca6eabd73bad82d21/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-11-20 07:21:17 UTC
File Type:
ELF32 Little (Exe)
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=upbsjuhufolj4dcgzv3gouyev7iiefgrvbz4qlfg5k6xhowyfuqq._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
defense_evasion discovery execution linux persistence privilege_escalation
Link:
https://tria.ge/reports/251120-h59bvs1ngz/
Behaviour
Reads runtime system information
Changes its process name
Modifies Bash startup script
Creates/modifies Cron job
Creates/modifies environment variables
Modifies init.d
Modifies rc script
Write file to user bin folder
Executes dropped EXE
Unexpected DNS network traffic destination
Verdict:
Malicious
Tags:
trojan mirai gafgyt Unix.Trojan.Mirai-10001386-0
YARA:
Linux_Trojan_Gafgyt_5bf62ce4 Linux_Trojan_Mirai_b14f4c5d Linux_Trojan_Mirai_5f7b67b8 Linux_Trojan_Mirai_ae9d0fa6 Linux_Trojan_Mirai_cc93863b
Link:
https://app.threat.zone/submission/e20f63bc-2cf4-4499-808f-ae987f46adfa
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a3c324d0f42b969e0c46cd76675304afd08214d1a873c82ca6eabd73bad82d21

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:ach_202503_elf_Mirai
Create hunting rule
Author:abuse.ch
Description:Detects Mirai 'TSource' ELF files
Rule name:enterpriseapps2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:Linux_Trojan_Gafgyt_5bf62ce4
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_5f7b67b8
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_ae9d0fa6
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_b14f4c5d
Create hunting rule
Author:Elastic Security
Rule name:Linux_Trojan_Mirai_cc93863b
Create hunting rule
Author:Elastic Security
Rule name:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:Mirai_Unpack
Create hunting rule
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 a3c324d0f42b969e0c46cd76675304afd08214d1a873c82ca6eabd73bad82d21

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3687976/
  
Delivery method
Distributed via web download

Comments