MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5b2b2b99dee41feefb96a860402312af2c7590605ccbab4944028822defdb977. 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 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5b2b2b99dee41feefb96a860402312af2c7590605ccbab4944028822defdb977
SHA3-384 hash: 938f8ad9c4a4d77ad5ee78400d8dbb60f898ba8214f8b66329c691e77d382e89f189371988ea85bcbdc8a63be24059a3
SHA1 hash: ea8b939ada0fbb8e7d44ce350133e115a7f95ba5
MD5 hash: 4e6c3fab3b3234a86aacfb9e58556a4e
humanhash: arkansas-lithium-tennis-alabama
File name:Polar.mpsl
Download: download sample
Signature Mirai
Create hunting rule
File size:233'704 bytes
First seen:2025-11-18 22:25:46 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 3072:bfo+b8de5ezexhkV6tFP8Vtz12Qo7ReGCs91m7EDMZSan:bfDb8de5ezWuV6tFk12H7ReA1PwZSa
TLSH T15B34E70AABA10EFBE8ABCD3706ED1B4124CC541721A57F763274D918F14B64B49E3C78
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 upx-dec


Avatar
abuse_ch
UPX decompressed file, sourced from SHA256 55cff44f1559229edca1187ade04c61796d96553557ba9597ee986e8fab2a8bf
File size (compressed) :73'328 bytes
File size (de-compressed) :233'704 bytes
Format:linux/mipsel
Packed file: 55cff44f1559229edca1187ade04c61796d96553557ba9597ee986e8fab2a8bf

Intelligence

File Origin
# of uploads :
1
# of downloads :
70
Origin country :
NL NL
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.28940.LC.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.30435.LC.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Linux.Siggen.9999-6.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.Dropper.Mirai-10007027-0
Create hunting rule

Unix.Trojan.Mirai-10009361-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Runs as daemon
Opens a port
Sends data to a server
DNS request
Connection attempt
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
gafgyt masquerade mirai obfuscated
Link:
https://www.filescan.io/uploads/691cf28ae75edd4a7275486e/reports/0a9dec17-c91a-4636-9c19-736b11c0b210/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:
2
Processes remaning?
false
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/5b2b2b99dee41feefb96a860402312af2c7590605ccbab4944028822defdb977
Behaviour
no suspicious findings
Botnet C2s
TCP botnet C2(s):
not identified
UDP botnet C2(s):
not identified
Result
Gathering data
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/0657a863-ba7e-4d73-8bca-df7e703e4bf6
Behavior Graph:
Download SVG
%3 guuid=dff563f9-1600-0000-179f-c28f6c0d0000 pid=3436 /usr/bin/sudo guuid=f44c0bfc-1600-0000-179f-c28f750d0000 pid=3445 /tmp/sample.bin guuid=dff563f9-1600-0000-179f-c28f6c0d0000 pid=3436->guuid=f44c0bfc-1600-0000-179f-c28f750d0000 pid=3445 execve guuid=f8bb97fd-1600-0000-179f-c28f7c0d0000 pid=3452 /usr/bin/dash guuid=f44c0bfc-1600-0000-179f-c28f750d0000 pid=3445->guuid=f8bb97fd-1600-0000-179f-c28f7c0d0000 pid=3452 clone
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/9e02080d-79de-413d-b399-67b1afd07d04
Result
Threat name:
Gafgyt
Create hunting rule
Detection:
malicious
Classification:
troj
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/1816557
Signature
Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Uses dynamic DNS services
Yara detected Gafgyt
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1816557 Sample: Polar.mpsl.elf Startdate: 18/11/2025 Architecture: LINUX Score: 76 22 lolzzmortex.duckdns.org 2->22 24 169.254.169.254, 80 USDOSUS Reserved 2->24 26 4 other IPs or domains 2->26 28 Malicious sample detected (through community Yara rule) 2->28 30 Antivirus / Scanner detection for submitted sample 2->30 32 Multi AV Scanner detection for submitted file 2->32 34 Yara detected Gafgyt 2->34 8 Polar.mpsl.elf 2->8         started        10 python3.8 dpkg 2->10         started        signatures3 36 Uses dynamic DNS services 22->36 process4 process5 12 Polar.mpsl.elf 8->12         started        14 Polar.mpsl.elf 8->14         started        16 Polar.mpsl.elf 8->16         started        process6 18 Polar.mpsl.elf 12->18         started        20 Polar.mpsl.elf 12->20         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/5b2b2b99dee41feefb96a860402312af2c7590605ccbab4944028822defdb977
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/5b2b2b99dee41feefb96a860402312af2c7590605ccbab4944028822defdb977/
Threat name:
Linux.Trojan.LnxMirai
Create hunting rule
Status:
Malicious
First seen:
2025-11-18 22:26:22 UTC
File Type:
ELF32 Little (Exe)
AV detection:
21 of 36 (58.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=lmvsxgo64qp6564wvbqeaiysv4whledaltf2wskeakecfxx5xf3q._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai defense_evasion discovery
Link:
https://tria.ge/reports/251118-2cndgavmfj/
Behaviour
Reads runtime system information
Enumerates running processes
Writes file to system bin folder
Modifies Watchdog functionality
Verdict:
Malicious
Tags:
trojan gafgyt Unix.Trojan.Mirai-7100807-0
YARA:
Linux_Trojan_Gafgyt_ea92cca8
Link:
https://app.threat.zone/submission/d3f81788-d60d-4ccd-a8e5-4526359a706f
Please note that we are no longer able to provide a coverage score for Virus Total.

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:ELF_Mirai
Create hunting rule
Author:NDA0E
Description:Detects multiple Mirai variants
Rule name:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:Linux_Trojan_Gafgyt_ea92cca8
Create hunting rule
Author:Elastic Security
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 55cff44f1559229edca1187ade04c61796d96553557ba9597ee986e8fab2a8bf

Mirai

elf 5b2b2b99dee41feefb96a860402312af2c7590605ccbab4944028822defdb977

(this sample)

  
Dropped by
SHA256 55cff44f1559229edca1187ade04c61796d96553557ba9597ee986e8fab2a8bf
  
URLhaus
https://urlhaus.abuse.ch/url/3711525/
  
Delivery method
Distributed via web download
  
Dropped by
MD5 0bf5b892efb0c2b6ed982bec356174d8
  
URLhaus
https://urlhaus.abuse.ch/url/3711526/

Comments