MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 25d4d38704efbf607cc3bab7eefa61839fe7bd31da204689b0a2b665235e362e. 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 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 25d4d38704efbf607cc3bab7eefa61839fe7bd31da204689b0a2b665235e362e
SHA3-384 hash: 55a8e6d6103139adc7bd809e3f6950ea9d10579038592eabfcbc22da1d9f5c6df4869b64bd0f48ec185a67d91e34fc9d
SHA1 hash: 81358b50bcc04f4b043cc46ec34ec3a5136c0128
MD5 hash: dca48aadbbb3e2cf36068eef5b9650c5
humanhash: monkey-fillet-september-one
File name:mips.urbotnetisass
Download: download sample
Signature Mirai
Create hunting rule
File size:329'052 bytes
First seen:2025-09-21 03:30:45 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 6144:ed0+UYL8QcUFXDvW0OfAsfQaOSLiuRuX743y4rlAlRIfNkD2D+B/ubEJQfur:ed03Yjzcf/jyZlDubEJQg
TLSH T13964C41E6A319F3DF7A8C73547B78B70979933E216E0CA44E1ACE1011E2064E655FFA8
telfhash t1e341a1190a7807a4a13a6c5d446def6696e334df3e1b2c238a11e85db72ef838d25c09
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.31069.LX.BOT.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.31075.LX.BOT.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.29052.TSource.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-7755770-0
Create hunting rule

Unix.Trojan.Mirai-8041698-0
Create hunting rule

Unix.Trojan.Mirai-9885259-0
Create hunting rule

Unix.Trojan.Gafgyt-9940653-0
Create hunting rule

Unix.Trojan.Mirai-9951087-0
Create hunting rule

Unix.Trojan.Mirai-10008934-0
Create hunting rule

Unix.Trojan.Gafgyt-6735924-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sets a written file as executable
Kills processes
Mounts file systems
Runs as daemon
Deletes a file
Receives data from a server
Opens a port
Creating a file in the %temp% directory
Creating a file
Sends data to a server
Connection attempt
Creating a file in the %temp% subdirectories
Collects information on the network activity
Unmounts file systems
Creates directories in a temporary directory
Deleting a recently created file
Deletes a system binary file
Creates or modifies files in /cron to set up autorun
Substitutes an application name
Writes files to system directory
Creates or modifies files in /init.d to set up autorun
Creates or modifies files to set up autorun
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm anti-vm bash lolbin remote threat
Link:
https://www.filescan.io/uploads/68cf718b390649f7a5f45d8f/reports/51ff66dd-4c10-4ad7-a481-2a62cc97da66/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
true
Architecture:
mips
Packer:
not packed
Botnet:
unknown
Number of open files:
100
Number of processes launched:
10
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/25d4d38704efbf607cc3bab7eefa61839fe7bd31da204689b0a2b665235e362e
Behaviour
Anti-VM
Persistence
Process Renaming
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.32.be
First seen:
2025-09-21T00:41:00Z UTC
Last seen:
2025-09-21T00:41:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Mirai.gen
Link:
https://opentip.kaspersky.com/25d4d38704efbf607cc3bab7eefa61839fe7bd31da204689b0a2b665235e362e/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/3e5a40e1-cd94-4920-8b71-76183d1e620a
Behavior Graph:
Download SVG
%3 guuid=f432bc3d-1900-0000-d368-5c5efa0b0000 pid=3066 /usr/bin/sudo guuid=691db03f-1900-0000-d368-5c5e010c0000 pid=3073 /tmp/sample.bin guuid=f432bc3d-1900-0000-d368-5c5efa0b0000 pid=3066->guuid=691db03f-1900-0000-d368-5c5e010c0000 pid=3073 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/1a9307b6-5afe-41a8-bad6-1e32d3d8501d
Result
Threat name:
Gafgyt, Mirai
Create hunting rule
Detection:
malicious
Classification:
spre.troj
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1781389
Signature
Antivirus / Scanner detection for submitted sample
Modifies the '.bashrc' or '.bash_profile' file typically for persisting actions
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
Writes identical ELF files to multiple locations
Yara detected Gafgyt
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1781389 Sample: mips.urbotnetisass.elf Startdate: 21/09/2025 Architecture: LINUX Score: 100 62 94.154.35.153, 43212 SELECTELRU Ukraine 2->62 64 109.202.202.202, 80 INIT7CH Switzerland 2->64 66 2 other IPs or domains 2->66 68 Antivirus / Scanner detection for submitted sample 2->68 70 Multi AV Scanner detection for submitted file 2->70 72 Yara detected Gafgyt 2->72 74 Yara detected Mirai 2->74 11 mips.urbotnetisass.elf 2->11         started        15 udisksd dumpe2fs 2->15         started        17 udisksd dumpe2fs 2->17         started        19 486 other processes 2->19 signatures3 process4 file5 50 /root/.bashrc, ASCII 11->50 dropped 52 /etc/rc.local, POSIX 11->52 dropped 54 /etc/profile, ASCII 11->54 dropped 56 /etc/crontab, ASCII 11->56 dropped 78 Sample tries to persist itself using /etc/profile 11->78 80 Modifies the '.bashrc' or '.bash_profile' file typically for persisting actions 11->80 82 Sample tries to persist itself using cron 11->82 84 Sample tries to persist itself using System V runlevels 11->84 21 mips.urbotnetisass.elf 11->21         started        signatures6 process7 file8 42 /_dev_shm_.6283_librt.so.1, ELF 21->42 dropped 44 /_dev_shm_.6283_libpthread.so.0, ELF 21->44 dropped 46 /_dev_shm_.6283_libm.so.6, ELF 21->46 dropped 48 6 other malicious files 21->48 dropped 76 Writes identical ELF files to multiple locations 21->76 25 mips.urbotnetisass.elf 21->25         started        27 mips.urbotnetisass.elf 21->27         started        29 mips.urbotnetisass.elf 21->29         started        signatures9 process10 process11 31 mips.urbotnetisass.elf 25->31         started        34 mips.urbotnetisass.elf 27->34         started        36 mips.urbotnetisass.elf 29->36         started        file12 58 /tmp/.taunt, POSIX 31->58 dropped 60 /tmp/.mock, POSIX 31->60 dropped 38 mips.urbotnetisass.elf 31->38         started        process13 process14 40 mips.urbotnetisass.elf 38->40         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/25d4d38704efbf607cc3bab7eefa61839fe7bd31da204689b0a2b665235e362e
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/25d4d38704efbf607cc3bab7eefa61839fe7bd31da204689b0a2b665235e362e/
Verdict:
Malicious
Threat:
Backdoor.Linux.Mirai
Link:
https://tip.neiki.dev/file/25d4d38704efbf607cc3bab7eefa61839fe7bd31da204689b0a2b665235e362e
Threat name:
Linux.Exploit.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-09-21 04:24:09 UTC
AV detection:
14 of 24 (58.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=exknhbye567wa7gdxk3656tbqop6ppjr3iqencnquk3gki26gyxa._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
credential_access defense_evasion discovery execution persistence privilege_escalation
Link:
https://tria.ge/reports/250921-d29q1acl7v/
Behaviour
Reads runtime system information
System Network Configuration Discovery
Writes file to tmp directory
Changes its process name
Reads system network configuration
Modifies Bash startup script
Reads process memory
Creates/modifies Cron job
Creates/modifies environment variables
Deletes log files
Enumerates active TCP sockets
Enumerates running processes
Modifies rc script
Writes file to system bin folder
Deletes system logs
Modifies Watchdog functionality
Verdict:
Malicious
Tags:
Unix.Trojan.Mirai-7755770-0
YARA:
n/a
Link:
https://app.threat.zone/submission/4e5fc505-ab48-42a7-81d0-72792023018a
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/25d4d38704efbf607cc3bab7eefa61839fe7bd31da204689b0a2b665235e362e

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:CP_AllMal_Detector
Create hunting rule
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
Rule name:enterpriseapps2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Enterprise apps
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:unixredflags3
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for UNIX red flags
Rule name:vmdetect
Create hunting rule
Author:nex
Description:Possibly employs anti-virtualization techniques

File information

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

Web download

Mirai

elf 25d4d38704efbf607cc3bab7eefa61839fe7bd31da204689b0a2b665235e362e

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3618257/
  
Delivery method
Distributed via web download

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