MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c71b9710d13d3152d370b46d22afda921cbe0815bbfc49eb703c6a0c739dc91f. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c71b9710d13d3152d370b46d22afda921cbe0815bbfc49eb703c6a0c739dc91f
SHA3-384 hash: 3490ef1ae9cfe09228063f7074068f080799cc89f2979fe13c9b26feb9b21ee698bd27e0ce74761dc544f1df393b33ba
SHA1 hash: 0a83e0b3874b6595e0108ebd6fcc7a75895e462b
MD5 hash: 823efa9115fb9101b56dd3e5629aa0d3
humanhash: steak-salami-harry-batman
File name:Polar.x86
Download: download sample
Signature Mirai
Create hunting rule
File size:56'180 bytes
First seen:2026-01-17 20:28:40 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:EnVUF0PD/NXVJBfxKOxC5qXGS/OYDtDnouy8tyi:+m2DBJx1x2qXZzt7outz
TLSH T15243F122C2DBC50FD4EED6BC08CFECF6A408A96910E55CE6A9CD01B2B4E17587B186D1
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) :56'180 bytes
File size (de-compressed) :135'852 bytes
Format:linux/i386
Unpacked file: dd6cc595148c090e9e3567cc2e624e8c7db6a69f57991097bfe4ede1246e49b3

Intelligence

File Origin
# of uploads :
1
# of downloads :
49
Origin country :
DE DE
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/30899197-5582-4ea3-8da7-cc232d2b86f9/
Detection(s):
Unix.Dropper.Mirai-7135858-0
Create hunting rule

Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
masquerade packed upx
Link:
https://www.filescan.io/uploads/696bf127584f1963ad592760/reports/1b280bc0-8f63-4d90-8212-920076104b40/overview
Result
Gathering data
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/77f5c4b8-abfe-4ff6-a31d-036ce74c97b2
Behavior Graph:
Download SVG
%3 guuid=961a96a4-1800-0000-16ec-4c3ec90b0000 pid=3017 /usr/bin/sudo guuid=f3cb49a6-1800-0000-16ec-4c3ed00b0000 pid=3024 /tmp/sample.bin net guuid=961a96a4-1800-0000-16ec-4c3ec90b0000 pid=3017->guuid=f3cb49a6-1800-0000-16ec-4c3ed00b0000 pid=3024 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=f3cb49a6-1800-0000-16ec-4c3ed00b0000 pid=3024->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=54aa31a7-1800-0000-16ec-4c3ed40b0000 pid=3028 /tmp/sample.bin guuid=f3cb49a6-1800-0000-16ec-4c3ed00b0000 pid=3024->guuid=54aa31a7-1800-0000-16ec-4c3ed40b0000 pid=3028 clone guuid=75e430d3-1900-0000-16ec-4c3ec60d0000 pid=3526 /tmp/sample.bin guuid=f3cb49a6-1800-0000-16ec-4c3ed00b0000 pid=3024->guuid=75e430d3-1900-0000-16ec-4c3ec60d0000 pid=3526 clone guuid=e68239d3-1900-0000-16ec-4c3ec70d0000 pid=3527 /tmp/sample.bin net send-data zombie guuid=f3cb49a6-1800-0000-16ec-4c3ed00b0000 pid=3024->guuid=e68239d3-1900-0000-16ec-4c3ec70d0000 pid=3527 clone guuid=08f33ba7-1800-0000-16ec-4c3ed50b0000 pid=3029 /tmp/sample.bin guuid=54aa31a7-1800-0000-16ec-4c3ed40b0000 pid=3028->guuid=08f33ba7-1800-0000-16ec-4c3ed50b0000 pid=3029 clone guuid=d92240a7-1800-0000-16ec-4c3ed70b0000 pid=3031 /tmp/sample.bin dns net send-data zombie guuid=54aa31a7-1800-0000-16ec-4c3ed40b0000 pid=3028->guuid=d92240a7-1800-0000-16ec-4c3ed70b0000 pid=3031 clone guuid=d92240a7-1800-0000-16ec-4c3ed70b0000 pid=3031->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 42B f9ed34c3-977d-5a54-b8af-fb4beb1194e4 ilovenetssomuch.ddns.net:69 guuid=d92240a7-1800-0000-16ec-4c3ed70b0000 pid=3031->f9ed34c3-977d-5a54-b8af-fb4beb1194e4 send: 10B guuid=e68239d3-1900-0000-16ec-4c3ec70d0000 pid=3527->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 1260B 310a0ed0-c544-54ca-bf3f-fca55e459297 65.222.202.53:80 guuid=e68239d3-1900-0000-16ec-4c3ec70d0000 pid=3527->310a0ed0-c544-54ca-bf3f-fca55e459297 send: 4B
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/029b8df7-4abf-4981-933a-434b417fef45
Result
Threat name:
Mirai
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/1852607
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Uses dynamic DNS services
Yara detected Mirai
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1852607 Sample: Polar.x86.elf Startdate: 17/01/2026 Architecture: LINUX Score: 72 22 ilovenetssomuch.ddns.net 2->22 24 169.254.169.254, 80 USDOSUS Reserved 2->24 26 3 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 Yara detected Mirai 2->32 34 Sample is packed with UPX 2->34 8 Polar.x86.elf 2->8         started        10 python3.8 dpkg 2->10         started        signatures3 36 Uses dynamic DNS services 22->36 process4 process5 12 Polar.x86.elf 8->12         started        14 Polar.x86.elf 8->14         started        16 Polar.x86.elf 8->16         started        process6 18 Polar.x86.elf 12->18         started        20 Polar.x86.elf 12->20         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/c71b9710d13d3152d370b46d22afda921cbe0815bbfc49eb703c6a0c739dc91f
Detection:
mirai
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c71b9710d13d3152d370b46d22afda921cbe0815bbfc49eb703c6a0c739dc91f/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2026-01-17 20:29:50 UTC
File Type:
ELF32 Little (Exe)
AV detection:
16 of 36 (44.44%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=y4nzoegrhuyvfu3qwrwsfl62siol4cavxp6et23qhrvay445zepq._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/260117-y9sgxact6e/
Behaviour
Reads runtime system information
Enumerates running processes
Writes file to system bin folder
Modifies Watchdog functionality
Mirai
Mirai family
Malware Config
C2 Extraction:
ilovenetssomuch.ddns.net
Verdict:
Malicious
Tags:
Unix.Dropper.Mirai-7135858-0
YARA:
n/a
Link:
https://app.threat.zone/submission/16d2106e-f83d-4a8f-bcc6-f0ac79324b9b
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/c71b9710d13d3152d370b46d22afda921cbe0815bbfc49eb703c6a0c739dc91f

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 c71b9710d13d3152d370b46d22afda921cbe0815bbfc49eb703c6a0c739dc91f

(this sample)

Mirai

elf dd6cc595148c090e9e3567cc2e624e8c7db6a69f57991097bfe4ede1246e49b3

  
URLhaus
https://urlhaus.abuse.ch/url/3711502/
  
Delivery method
Distributed via web download
  
Dropping
SHA256 dd6cc595148c090e9e3567cc2e624e8c7db6a69f57991097bfe4ede1246e49b3
  
Dropping
MD5 df496108cc3490ea1a7cdcf130e40e1b

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