MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4dcdbd21914f34f1c0b2a323da5a6840e7665ed56dc18b43a1638b721a1c2248. 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: 10


Intelligence 10 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4dcdbd21914f34f1c0b2a323da5a6840e7665ed56dc18b43a1638b721a1c2248
SHA3-384 hash: 5ddf7d81e8f8d34eaa5f5d8efd9de25bb98c23e3c96b1b604ebd5f2a5f67b78c5ef1ec508cd14df0b55087461134da15
SHA1 hash: 5994d9b8362dfcf0842825479132be9618dce826
MD5 hash: eb52d27dfc27e2769ccdaf37f34d445e
humanhash: april-harry-jupiter-grey
File name:mipsel.urbotnetisass
Download: download sample
Signature Mirai
Create hunting rule
File size:384'520 bytes
First seen:2025-09-19 13:57:39 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 6144:xAMj5DWEtGmgmUplE60W447fwVNnwwo8Wjn77LmXEC+JQ:vClplE60W44LqndoxX7KXEC+JQ
TLSH T19484F60DAF610FFBE86ECE3746E90B46218C684671983F7A3974E914F14B58B0AD3974
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 :
72
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

Unix.Trojan.Mirai-7755770-0
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
Unmounts file systems
Runs as daemon
Opens a port
Sends data to a server
Creating a file
Deletes a file
Receives data from a server
Deleting a recently created file
Connection attempt
Kills processes
Mounts file systems
Collects information on the network activity
Deletes a system binary file
Substitutes an application name
Writes files to system directory
Creates or modifies files in /cron to set up autorun
Creates or modifies files in /init.d to set up autorun
Creates or modifies files to set up autorun
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm anti-vm bash lolbin
Link:
https://www.filescan.io/uploads/68cd6189dc1cad370d1dfaf5/reports/34679011-86f9-49ff-bf3f-7661ad87f88d/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
mips
Packer:
not packed
Botnet:
unknown
Number of open files:
7
Number of processes launched:
1
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/4dcdbd21914f34f1c0b2a323da5a6840e7665ed56dc18b43a1638b721a1c2248
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-09-19T12:16:00Z UTC
Last seen:
2025-09-19T12:16:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/4dcdbd21914f34f1c0b2a323da5a6840e7665ed56dc18b43a1638b721a1c2248/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/06a51875-89f0-4e06-98cb-15500e323523
Behavior Graph:
Download SVG
%3 guuid=15262aed-1600-0000-e51c-af24ed0d0000 pid=3565 /usr/bin/sudo guuid=89202eef-1600-0000-e51c-af24f30d0000 pid=3571 /tmp/sample.bin guuid=15262aed-1600-0000-e51c-af24ed0d0000 pid=3565->guuid=89202eef-1600-0000-e51c-af24f30d0000 pid=3571 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/07e1f54a-f980-4265-af63-42479b8ee42f
Result
Threat name:
Gafgyt, Mirai
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1780783
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
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
Sample tries to set files in /etc globally writable
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: 1780783 Sample: mipsel.urbotnetisass.elf Startdate: 19/09/2025 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 74 Antivirus detection for dropped file 2->74 76 Antivirus / Scanner detection for submitted sample 2->76 78 Multi AV Scanner detection for submitted file 2->78 80 2 other signatures 2->80 10 mipsel.urbotnetisass.elf 2->10         started        14 udisksd dumpe2fs 2->14         started        16 udisksd dumpe2fs 2->16         started        18 10 other processes 2->18 signatures3 process4 file5 56 /root/.bashrc, ASCII 10->56 dropped 58 /etc/profile, ASCII 10->58 dropped 60 /etc/crontab, ASCII 10->60 dropped 88 Sample tries to persist itself using /etc/profile 10->88 90 Modifies the '.bashrc' or '.bash_profile' file typically for persisting actions 10->90 92 Sample tries to persist itself using cron 10->92 94 Sample tries to persist itself using System V runlevels 10->94 20 mipsel.urbotnetisass.elf 10->20         started        signatures6 process7 file8 48 /etc/rc.local, ASCII 20->48 dropped 50 /_dev_shm_.6225_librt.so.1, ELF 20->50 dropped 52 /_dev_shm_.6225_libpthread.so.0, ELF 20->52 dropped 54 7 other malicious files 20->54 dropped 82 Sample tries to set files in /etc globally writable 20->82 84 Writes identical ELF files to multiple locations 20->84 86 Sample tries to persist itself using System V runlevels 20->86 24 mipsel.urbotnetisass.elf sh 20->24         started        26 mipsel.urbotnetisass.elf 20->26         started        28 mipsel.urbotnetisass.elf 20->28         started        30 mipsel.urbotnetisass.elf 20->30         started        signatures9 process10 process11 32 sh cp 24->32         started        36 mipsel.urbotnetisass.elf 26->36         started        38 mipsel.urbotnetisass.elf 28->38         started        40 mipsel.urbotnetisass.elf 30->40         started        file12 46 /usr/bin/.sh, ELF 32->46 dropped 68 Drops invisible ELF files 32->68 70 Drops files in suspicious directories 32->70 72 Deletes system log files 36->72 42 mipsel.urbotnetisass.elf 36->42         started        44 mipsel.urbotnetisass.elf 36->44         started        signatures13 process14
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/4dcdbd21914f34f1c0b2a323da5a6840e7665ed56dc18b43a1638b721a1c2248
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4dcdbd21914f34f1c0b2a323da5a6840e7665ed56dc18b43a1638b721a1c2248/
Threat name:
Linux.Exploit.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-09-19 13:58:29 UTC
File Type:
ELF32 Little (Exe)
AV detection:
21 of 38 (55.26%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jxg32imrj42pdqfsumr5uwtiidtwmxwvnxaywq5bmofxegq4ejea._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
credential_access defense_evasion discovery execution persistence privilege_escalation
Link:
https://tria.ge/reports/250919-q93c4sbk5x/
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
Enumerates active TCP sockets
Enumerates running processes
Modifies rc script
Writes file to system bin folder
Modifies Watchdog functionality
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/53d9c696-9328-46c8-bb09-d6ed36c34188
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/4dcdbd21914f34f1c0b2a323da5a6840e7665ed56dc18b43a1638b721a1c2248

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 4dcdbd21914f34f1c0b2a323da5a6840e7665ed56dc18b43a1638b721a1c2248

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3618252/
  
Delivery method
Distributed via web download

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