MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8bc21a868d10a8cb1b9a2130d1ca2f3b8e6bf80d6d48bc436c9930c944a1359d. 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: 9


Intelligence 9 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8bc21a868d10a8cb1b9a2130d1ca2f3b8e6bf80d6d48bc436c9930c944a1359d
SHA3-384 hash: 36e9e5c210ade3632d9af080da3bb25697f3e19c9738e06b44cda40869b0c29d7959f783e369a9ae061bee5740ba713d
SHA1 hash: 47643a149d2eb0a285c3b62ecac1fb843d039145
MD5 hash: 0c7755c1b3c044dec85483ec074f9723
humanhash: comet-november-skylark-failed
File name:windy.x86_64
Download: download sample
Signature Mirai
Create hunting rule
File size:42'036 bytes
First seen:2025-10-18 16:11:11 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 768:QhhZn/MZT5l2bqkFvuXaHPSTxO1AJTisIUD2ESspa6TC8YeDmymiBx05J:QhXMZT5r6vmWPSiwTisIUDtY6rDmJGAJ
TLSH T1AA13E19F689EC0FDE8FD13B019021F94FEB9A497564662B701C438FF657B4990EB0660
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 :
50
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Linux.Mirai-19.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Receives data from a server
Runs as daemon
Opens a port
Sends data to a server
Connection attempt
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
packed threat upx
Link:
https://www.filescan.io/uploads/68f3be0a3a79800405ea178c/reports/9c0cea77-5183-4c07-ab98-54c3a435c58c/overview
Verdict:
Malicious
File Type:
elf.64.le
First seen:
2025-10-18T13:25:00Z UTC
Last seen:
2025-10-19T10:15:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/8bc21a868d10a8cb1b9a2130d1ca2f3b8e6bf80d6d48bc436c9930c944a1359d/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/1af0b276-73db-47e7-8761-86bc7e30b4bc
Behavior Graph:
Download SVG
%3 guuid=78aeacb5-1a00-0000-e9ee-ea090d0c0000 pid=3085 /usr/bin/sudo guuid=eaec8eb8-1a00-0000-e9ee-ea09110c0000 pid=3089 /tmp/sample.bin mprotect-exec net guuid=78aeacb5-1a00-0000-e9ee-ea090d0c0000 pid=3085->guuid=eaec8eb8-1a00-0000-e9ee-ea09110c0000 pid=3089 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=eaec8eb8-1a00-0000-e9ee-ea09110c0000 pid=3089->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=49e151b9-1a00-0000-e9ee-ea09120c0000 pid=3090 /tmp/sample.bin guuid=eaec8eb8-1a00-0000-e9ee-ea09110c0000 pid=3089->guuid=49e151b9-1a00-0000-e9ee-ea09120c0000 pid=3090 clone guuid=ef94dfe3-1b00-0000-e9ee-ea091d0e0000 pid=3613 /tmp/sample.bin guuid=eaec8eb8-1a00-0000-e9ee-ea09110c0000 pid=3089->guuid=ef94dfe3-1b00-0000-e9ee-ea091d0e0000 pid=3613 clone guuid=7a3ce4e3-1b00-0000-e9ee-ea091e0e0000 pid=3614 /tmp/sample.bin net send-data zombie guuid=eaec8eb8-1a00-0000-e9ee-ea09110c0000 pid=3089->guuid=7a3ce4e3-1b00-0000-e9ee-ea091e0e0000 pid=3614 clone guuid=3faa5cb9-1a00-0000-e9ee-ea09130c0000 pid=3091 /tmp/sample.bin guuid=49e151b9-1a00-0000-e9ee-ea09120c0000 pid=3090->guuid=3faa5cb9-1a00-0000-e9ee-ea09130c0000 pid=3091 clone guuid=4fea60b9-1a00-0000-e9ee-ea09140c0000 pid=3092 /tmp/sample.bin net send-data zombie guuid=49e151b9-1a00-0000-e9ee-ea09120c0000 pid=3090->guuid=4fea60b9-1a00-0000-e9ee-ea09140c0000 pid=3092 clone guuid=4fea60b9-1a00-0000-e9ee-ea09140c0000 pid=3092->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 1350B 310a0ed0-c544-54ca-bf3f-fca55e459297 65.222.202.53:80 guuid=4fea60b9-1a00-0000-e9ee-ea09140c0000 pid=3092->310a0ed0-c544-54ca-bf3f-fca55e459297 send: 4B guuid=7a3ce4e3-1b00-0000-e9ee-ea091e0e0000 pid=3614->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 1380B guuid=7a3ce4e3-1b00-0000-e9ee-ea091e0e0000 pid=3614->310a0ed0-c544-54ca-bf3f-fca55e459297 send: 4B
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/82f3afcd-98c5-47d5-951c-7a21428c1348
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.evad
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/1797669
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Sends malformed DNS queries
Uses dynamic DNS services
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1797669 Sample: windy.x86_64.elf Startdate: 18/10/2025 Architecture: LINUX Score: 68 22 mirailoversddos.duckdns.org. [malformed] 2->22 24 mirailoversddos.duckdns.org 2->24 26 65.222.202.53, 80 CAPEREGIONALHEALTHSYSTEMUS United States 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 windy.x86_64.elf 2->8         started        10 python3.8 dpkg 2->10         started        signatures3 34 Sends malformed DNS queries 22->34 36 Uses dynamic DNS services 24->36 process4 process5 12 windy.x86_64.elf 8->12         started        14 windy.x86_64.elf 8->14         started        16 windy.x86_64.elf 8->16         started        process6 18 windy.x86_64.elf 12->18         started        20 windy.x86_64.elf 12->20         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/8bc21a868d10a8cb1b9a2130d1ca2f3b8e6bf80d6d48bc436c9930c944a1359d
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8bc21a868d10a8cb1b9a2130d1ca2f3b8e6bf80d6d48bc436c9930c944a1359d/
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-10-18 16:22:29 UTC
File Type:
ELF64 Little (Exe)
AV detection:
20 of 38 (52.63%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rpbbvbunccumwg42eeyndsrphohgx6annvelyq3mteymsrfbgwoq._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/251018-tsm4mssnck/
Behaviour
Reads runtime system information
Enumerates running processes
Writes file to system bin folder
Modifies Watchdog functionality
Mirai
Mirai family
Malware Config
C2 Extraction:
mirailoversddos.duckdns.org
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/f6c19f3b-9b0e-4f40-b64e-97fd3daf101b
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/8bc21a868d10a8cb1b9a2130d1ca2f3b8e6bf80d6d48bc436c9930c944a1359d

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 8bc21a868d10a8cb1b9a2130d1ca2f3b8e6bf80d6d48bc436c9930c944a1359d

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3681128/
  
Delivery method
Distributed via web download

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