MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 27d4a835b61920d0f81566fb5bafc61a3b50335d412611b9f9c7b91c434b0e0f. 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 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 27d4a835b61920d0f81566fb5bafc61a3b50335d412611b9f9c7b91c434b0e0f
SHA3-384 hash: 27c4c791437775c50d5362af8d980005b9d57631d0f7d13300652151f867aedadb0bd10785555fc1162c1052d4ff1667
SHA1 hash: b1a9532ca68d9a3fc734114440356a2a2c532450
MD5 hash: 26d0aa88f8af2fd2323af34a96566636
humanhash: delaware-hamper-skylark-montana
File name:Polar.mpsl
Download: download sample
Signature Mirai
Create hunting rule
File size:169'692 bytes
First seen:2026-03-25 22:10:15 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:nqH0Pg0atTbFbG8eaWW65LGaRxRD5jG1QmivAv3Mfw6tws8xD9fPiv2t/r7gCBQ0:nW0Pg7Fy8G9qaUMfwYuD9fPs2JKOFii
TLSH T18DF3D60AAFA10FBBD8AFDE3706E90A4238CC645721A53F753674D528F54A50F4AD3C68
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 :
65
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/8d63ecea-e321-4560-8405-4e591ffeb1a4/
Detection(s):
Sanesecurity.Malware.32133.LX.BOT.UNOFFICIAL
Create hunting rule

Unix.Trojan.Mirai-7100807-0
Create hunting rule

Unix.Dropper.Mirai-7135897-0
Create hunting rule

Unix.Dropper.Mirai-7135901-0
Create hunting rule

Unix.Dropper.Mirai-7135909-0
Create hunting rule

Unix.Trojan.Mirai-7135916-0
Create hunting rule

Unix.Dropper.Mirai-7135918-0
Create hunting rule

Unix.Dropper.Mirai-7135954-0
Create hunting rule

Unix.Dropper.Mirai-7136016-0
Create hunting rule

Unix.Dropper.Mirai-7136028-0
Create hunting rule

Unix.Trojan.Mirai-8025795-0
Create hunting rule

Unix.Trojan.Mirai-10059006-0
Create hunting rule

Unix.Trojan.Mirai-10059216-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
DNS request
Runs as daemon
Opens a port
Sends data to a server
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
masquerade
Link:
https://www.filescan.io/uploads/69c45d59e2df9aa488b7f283/reports/7afe6424-d5b6-4b28-947a-12ce8f77a5a6/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/27d4a835b61920d0f81566fb5bafc61a3b50335d412611b9f9c7b91c434b0e0f
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
Detections:
HEUR:Backdoor.Linux.Mirai.r HEUR:Backdoor.Linux.Mirai.b HEUR:Backdoor.Linux.Gafgyt.bl HEUR:Backdoor.Linux.Gafgyt.bj
Link:
https://opentip.kaspersky.com/27d4a835b61920d0f81566fb5bafc61a3b50335d412611b9f9c7b91c434b0e0f/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/f7615de4-cdc4-43f2-bee7-3b398577c340
Behavior Graph:
Download SVG
%3 guuid=a7717aee-1800-0000-be2b-f846940a0000 pid=2708 /usr/bin/sudo guuid=22e644f0-1800-0000-be2b-f846990a0000 pid=2713 /tmp/sample.bin guuid=a7717aee-1800-0000-be2b-f846940a0000 pid=2708->guuid=22e644f0-1800-0000-be2b-f846990a0000 pid=2713 execve
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/7935ee0a-15e3-4168-9c82-f723a65079b1
Result
Threat name:
Mirai, Xmrig
Create hunting rule
Detection:
malicious
Classification:
troj.mine
Score:
84 / 100
Link:
https://www.joesandbox.com/analysis/1889221
Signature
Antivirus / Scanner detection for submitted sample
Found strings related to Crypto-Mining
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected Mirai
Yara detected Xmrig cryptocurrency miner
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1889221 Sample: Polar.mpsl.elf Startdate: 25/03/2026 Architecture: LINUX Score: 84 25 moiamonprime.myddns.me 143.20.185.225, 32420, 33364 LANCAMANTOANISERVICOSDEINFORMATICALTDA-MEBR United States 2->25 27 1.1.1.1, 46644, 80 CLOUDFLARENETUS Australia 2->27 29 daisy.ubuntu.com 2->29 31 Malicious sample detected (through community Yara rule) 2->31 33 Antivirus / Scanner detection for submitted sample 2->33 35 Multi AV Scanner detection for submitted file 2->35 37 2 other signatures 2->37 10 Polar.mpsl.elf 2->10         started        13 python3.8 dpkg 2->13         started        signatures3 process4 signatures5 39 Found strings related to Crypto-Mining 10->39 15 Polar.mpsl.elf 10->15         started        17 Polar.mpsl.elf 10->17         started        process6 process7 19 Polar.mpsl.elf 15->19         started        process8 21 Polar.mpsl.elf sh 19->21         started        process9 23 sh wget 21->23         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/27d4a835b61920d0f81566fb5bafc61a3b50335d412611b9f9c7b91c434b0e0f
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/27d4a835b61920d0f81566fb5bafc61a3b50335d412611b9f9c7b91c434b0e0f/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/27d4a835b61920d0f81566fb5bafc61a3b50335d412611b9f9c7b91c434b0e0f
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-03-25 22:10:41 UTC
File Type:
ELF32 Little (Exe)
AV detection:
14 of 24 (58.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=e7kkqnnwdeqnb6avm35vxl6gdi5vam25ietbdopzy64ryq2lbyhq._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai defense_evasion discovery
Link:
https://tria.ge/reports/260325-13nlgse14s/
Behaviour
Reads runtime system information
Writes file to tmp directory
Writes file to system bin folder
Executes dropped EXE
Modifies Watchdog functionality
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/27d4a835b61920d0f81566fb5bafc61a3b50335d412611b9f9c7b91c434b0e0f

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:ELF_Toriilike_persist
Create hunting rule
Author:4r4
Description:Detects Torii IoT Botnet (stealthier Mirai alternative)
Reference:Identified via researched data
Rule name:Mirai_Botnet_Malware
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects Mirai Botnet Malware
Reference:Internal Research
Rule name:Mirai_Botnet_Malware_RID2EF6
Create hunting rule
Author:Florian Roth
Description:Detects Mirai Botnet Malware
Reference:Internal Research
Rule name:SUSP_XORed_Mozilla_Oct19
Create hunting rule
Author:Florian Roth
Description:Detects suspicious single byte XORed keyword 'Mozilla/5.0' - it uses yara's XOR modifier and therefore cannot print the XOR key. You can use the CyberChef recipe linked in the reference field to brute force the used key.
Reference:https://gchq.github.io/CyberChef/#recipe=XOR_Brute_Force()
Rule name:SUSP_XORed_Mozilla_RID2DB4
Create hunting rule
Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
Rule name:TH_Generic_MassHunt_Linux_Malware_2026_CYFARE
Create hunting rule
Author:CYFARE
Description:Generic Linux malware mass-hunt rule - 2026
Reference:https://cyfare.net/
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 27d4a835b61920d0f81566fb5bafc61a3b50335d412611b9f9c7b91c434b0e0f

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3711526/
  
Delivery method
Distributed via web download

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