MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 47b0a3737f2f2d883517a4e1d993d46df24003b94ccc219362feee6c401fa1e0. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 47b0a3737f2f2d883517a4e1d993d46df24003b94ccc219362feee6c401fa1e0
SHA3-384 hash: 96263da5ffbf079425a954b4314f6db74258479eabf47ca5d389cdf88d14ae77e1ec0caa35aff566c490ed7221a1a882
SHA1 hash: 8cf1fc606e5b60747135346e71a332d0fff8fa93
MD5 hash: 43e56f7cc307e9b74063df4ab568ab72
humanhash: spring-mountain-edward-ack
File name:Polar.i686
Download: download sample
Signature Mirai
Create hunting rule
File size:58'904 bytes
First seen:2025-12-04 16:39:39 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:TuTxXK6JFGpLY7mb/sloTX2cr2/MMfISDY718J/9Unouy8Hyi:ilvJFGp8K08bC/MMAwU8JFkoutd
TLSH T1E443F204A6F1A740ADBB02762CC7569A08878313FF65EFD34D6DED066E28E9147349C3
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
File size (compressed) :58'904 bytes
File size (de-compressed) :145'772 bytes
Format:linux/i386
Unpacked file: 43abb0c9f2b7a8f8ff5abcd3135ef027129fe69dc0f63d8f352883d079f897d9

Intelligence

File Origin
# of uploads :
1
# of downloads :
35
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/690787d7-f107-4e15-80a0-ce1d20625607/
Detection(s):
Unix.Dropper.Mirai-7135858-0
Create hunting rule

Verdict:
Malicious
File Type:
elf.32.le
First seen:
2025-12-04T14:50:00Z UTC
Last seen:
2025-12-06T06:52:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/47b0a3737f2f2d883517a4e1d993d46df24003b94ccc219362feee6c401fa1e0/results?tab=lookup
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c07431c5-3959-4fc9-a1fb-7f6f23d1acd1
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.evad
Score:
64 / 100
Link:
https://www.joesandbox.com/analysis/1826515
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Uses dynamic DNS services
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1826515 Sample: Polar.i686.elf Startdate: 04/12/2025 Architecture: LINUX Score: 64 22 uraniumc2.ddns.net 2->22 24 uraniumc2.ddns.net 143.20.185.225, 60980, 69 LANCAMANTOANISERVICOSDEINFORMATICALTDA-MEBR United States 2->24 26 2 other IPs or domains 2->26 28 Malicious sample detected (through community Yara rule) 2->28 30 Multi AV Scanner detection for submitted file 2->30 32 Sample is packed with UPX 2->32 8 Polar.i686.elf 2->8         started        10 python3.8 dpkg 2->10         started        signatures3 34 Uses dynamic DNS services 22->34 process4 process5 12 Polar.i686.elf 8->12         started        14 Polar.i686.elf 8->14         started        16 Polar.i686.elf 8->16         started        process6 18 Polar.i686.elf 12->18         started        20 Polar.i686.elf 12->20         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/47b0a3737f2f2d883517a4e1d993d46df24003b94ccc219362feee6c401fa1e0
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/47b0a3737f2f2d883517a4e1d993d46df24003b94ccc219362feee6c401fa1e0/
Threat name:
Linux.Worm.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-12-04 16:40:21 UTC
File Type:
ELF32 Little (Exe)
AV detection:
22 of 38 (57.89%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=i6ykg437f4wyqnixutq5te6unxzeaa5zjtgcde3c73xgyqa7uhqa._file
Result
Malware family:
mirai
Create hunting rule
Score:
  10/10
Tags:
family:mirai botnet defense_evasion discovery linux upx
Link:
https://tria.ge/reports/251204-t6n8vsbl6v/
Behaviour
Reads runtime system information
Enumerates running processes
Writes file to system bin folder
Modifies Watchdog functionality
Mirai
Mirai family
Verdict:
Malicious
Tags:
Unix.Dropper.Mirai-7135858-0
YARA:
n/a
Link:
https://app.threat.zone/submission/bcc10eea-45d6-476c-b01c-ea34932bcbbb
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.20
Link:
https://yomi.yoroi.company/submissions/47b0a3737f2f2d883517a4e1d993d46df24003b94ccc219362feee6c401fa1e0

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:linux_generic_ipv6_catcher
Create hunting rule
Author:@_lubiedo
Description:ELF samples using IPv6 addresses
Rule name:SUSP_ELF_LNX_UPX_Compressed_File
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects a suspicious ELF binary with UPX compression
Reference:Internal Research
Rule name:upx_packed_elf_v1
Create hunting rule
Author:RandomMalware

File information

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

Web download

Mirai

elf 47b0a3737f2f2d883517a4e1d993d46df24003b94ccc219362feee6c401fa1e0

(this sample)

Mirai

elf 43abb0c9f2b7a8f8ff5abcd3135ef027129fe69dc0f63d8f352883d079f897d9

  
URLhaus
https://urlhaus.abuse.ch/url/3712749/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 43abb0c9f2b7a8f8ff5abcd3135ef027129fe69dc0f63d8f352883d079f897d9
  
Dropping
MD5 ab002f707af9a4054c0fcb4e5fa22a68
  
URLhaus
https://urlhaus.abuse.ch/url/3711495/

Comments