MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f57fc99d3e88e27f631d671334ccc10003f7157cf2fd9cc8ebb9e4b9d29d7426. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f57fc99d3e88e27f631d671334ccc10003f7157cf2fd9cc8ebb9e4b9d29d7426
SHA3-384 hash: 8ca826f7c45f8ed341893748f12131e0d3544b11f7b942d751fd0fa8bbd5b2e93e8c8a3f68e289107b38d512e43ad228
SHA1 hash: fbdc397e06707694bd1056d7a61eef8bc285f21d
MD5 hash: d9ad1974550f655891e43c94fe39aa8d
humanhash: william-diet-single-batman
File name:windy.x86_64
Download: download sample
Signature Mirai
Create hunting rule
File size:65'404 bytes
First seen:2025-10-19 21:47:32 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:NnSzkEk40T4WNAvxJ/W6Hg4cWWb20nh1Gl1ZkdCVO:0YEk4uNX8gtvbc1ZkdaO
TLSH T1A35302FB5A9FA37EC81127B136452050B21A7C9FB614264A1D38A2FE7DAD10E7C34AD1
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 :
48
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Linux.Mirai-19.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Receives data from a server
Opens a port
DNS request
Runs as daemon
Sends data to a server
Connection attempt
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
obfuscated packed upx
Link:
https://www.filescan.io/uploads/68f55cb6c85c5c56972e4dc8/reports/7153ab8c-e3ff-477e-8729-be7e548e004e/overview
Verdict:
Malicious
File Type:
elf.64.le
First seen:
2025-10-19T16:47:00Z UTC
Last seen:
2025-10-21T18:33:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Linux.Gafgyt.bj HEUR:Backdoor.Linux.Mirai.r HEUR:Backdoor.Linux.Mirai.cw HEUR:Backdoor.Linux.Mirai.b HEUR:Backdoor.Linux.Gafgyt.bl
Link:
https://opentip.kaspersky.com/f57fc99d3e88e27f631d671334ccc10003f7157cf2fd9cc8ebb9e4b9d29d7426/results?tab=lookup
Status:
terminated
Link:
https://sandbox.kunai.rocks/analysis/7a800df2-0ae9-4c5d-a07a-9c97c87fa65c
Behavior Graph:
Download SVG
%3 guuid=3e0dbf63-1900-0000-4f26-e7228e100000 pid=4238 /usr/bin/sudo guuid=b7aa9865-1900-0000-4f26-e72294100000 pid=4244 /tmp/sample.bin mprotect-exec net guuid=3e0dbf63-1900-0000-4f26-e7228e100000 pid=4238->guuid=b7aa9865-1900-0000-4f26-e72294100000 pid=4244 execve 8b0a01dc-0728-52c1-8024-c4ba7801b8d6 8.8.8.8:53 guuid=b7aa9865-1900-0000-4f26-e72294100000 pid=4244->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 con guuid=198c3b66-1900-0000-4f26-e72298100000 pid=4248 /tmp/sample.bin guuid=b7aa9865-1900-0000-4f26-e72294100000 pid=4244->guuid=198c3b66-1900-0000-4f26-e72298100000 pid=4248 clone guuid=ab8a9d90-1a00-0000-4f26-e72290130000 pid=5008 /tmp/sample.bin guuid=b7aa9865-1900-0000-4f26-e72294100000 pid=4244->guuid=ab8a9d90-1a00-0000-4f26-e72290130000 pid=5008 clone guuid=cf2fa190-1a00-0000-4f26-e72291130000 pid=5009 /tmp/sample.bin net send-data zombie guuid=b7aa9865-1900-0000-4f26-e72294100000 pid=4244->guuid=cf2fa190-1a00-0000-4f26-e72291130000 pid=5009 clone guuid=cd674166-1900-0000-4f26-e72299100000 pid=4249 /tmp/sample.bin guuid=198c3b66-1900-0000-4f26-e72298100000 pid=4248->guuid=cd674166-1900-0000-4f26-e72299100000 pid=4249 clone guuid=4c514466-1900-0000-4f26-e7229a100000 pid=4250 /tmp/sample.bin net send-data zombie guuid=198c3b66-1900-0000-4f26-e72298100000 pid=4248->guuid=4c514466-1900-0000-4f26-e7229a100000 pid=4250 clone guuid=4c514466-1900-0000-4f26-e7229a100000 pid=4250->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 1350B 310a0ed0-c544-54ca-bf3f-fca55e459297 65.222.202.53:80 guuid=4c514466-1900-0000-4f26-e7229a100000 pid=4250->310a0ed0-c544-54ca-bf3f-fca55e459297 send: 4B guuid=cf2fa190-1a00-0000-4f26-e72291130000 pid=5009->8b0a01dc-0728-52c1-8024-c4ba7801b8d6 send: 1380B guuid=cf2fa190-1a00-0000-4f26-e72291130000 pid=5009->310a0ed0-c544-54ca-bf3f-fca55e459297 send: 4B
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/d9e4fb7b-55ee-43eb-9c62-57dd3813635f
Result
Threat name:
Gafgyt
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/1797974
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
Yara detected Gafgyt
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1797974 Sample: windy.x86_64.elf Startdate: 19/10/2025 Architecture: LINUX Score: 76 26 mirailoversddos.duckdns.org. [malformed] 2->26 28 mirailoversddos.duckdns.org 2->28 30 6 other IPs or domains 2->30 32 Malicious sample detected (through community Yara rule) 2->32 34 Multi AV Scanner detection for submitted file 2->34 36 Yara detected Gafgyt 2->36 38 Sample is packed with UPX 2->38 8 windy.x86_64.elf 2->8         started        10 dash rm 2->10         started        12 dash rm 2->12         started        14 python3.8 dpkg 2->14         started        signatures3 40 Sends malformed DNS queries 26->40 42 Uses dynamic DNS services 28->42 process4 process5 16 windy.x86_64.elf 8->16         started        18 windy.x86_64.elf 8->18         started        20 windy.x86_64.elf 8->20         started        process6 22 windy.x86_64.elf 16->22         started        24 windy.x86_64.elf 16->24         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/f57fc99d3e88e27f631d671334ccc10003f7157cf2fd9cc8ebb9e4b9d29d7426
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f57fc99d3e88e27f631d671334ccc10003f7157cf2fd9cc8ebb9e4b9d29d7426/
Verdict:
Malicious
Threat:
Family.MIRAI
Link:
https://tip.neiki.dev/file/f57fc99d3e88e27f631d671334ccc10003f7157cf2fd9cc8ebb9e4b9d29d7426
Threat name:
Linux.Backdoor.Mirai
Create hunting rule
Status:
Malicious
First seen:
2025-10-19 21:18:39 UTC
File Type:
ELF64 Little (Exe)
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6v74thj6rdrh6yy5m4jtjtgbaab7ofl46l6zzshlxhsltuu5oqta._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/251019-1n2vkabw3h/
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/730be5b0-8ee3-4e7d-8633-13b739caa8df
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: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 f57fc99d3e88e27f631d671334ccc10003f7157cf2fd9cc8ebb9e4b9d29d7426

(this sample)

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

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